diff --git a/tests/msc_vlr/msc_vlr_test_no_authen.err b/tests/msc_vlr/msc_vlr_test_no_authen.err
index 9f1e7b6..b21e3fc 100644
--- a/tests/msc_vlr/msc_vlr_test_no_authen.err
+++ b/tests/msc_vlr/msc_vlr_test_no_authen.err
@@ -15,12 +15,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -41,13 +41,13 @@
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -65,7 +65,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -79,7 +79,7 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -91,11 +91,11 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
@@ -110,7 +110,7 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -126,8 +126,8 @@
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 2 (attached,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 3 (attached,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -144,7 +144,7 @@
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + cm_service == 2 (0x9: compl_l3,cm_service)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: still awaiting first request after a CM Service Request
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 2 (attached,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x8: cm_service)
   cm_service_result_sent == 1
@@ -154,8 +154,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   bssap_clear_sent == 1
 - all requests serviced, conn has been released
@@ -168,17 +168,17 @@
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
 - an SMS is sent, MS is paged
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen: now used by 2 (attached,test_no_authen)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS-receiver: now used by 3 (attached,test_no_authen,SMS-receiver)
 DLSMS Going to send a MT SMS
 DCC (ti 00 sub IMSI-901700000004620:MSISDN-46071 callref 40000001) New transaction
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS: now used by 4 (attached,test_no_authen,SMS-receiver,SMS)
 DLSMS SMC(0) instance created for network
 DLSMS SMR(0) instance created for network.
 DLSMS SMR(0) message SM-RL-DATA_REQ received in state IDLE
@@ -190,15 +190,15 @@
 DMM Subscriber IMSI-901700000004620:MSISDN-46071 not paged yet, start paging.
   GERAN-A sends out paging request to IMSI 901700000004620, TMSI 0xffffffff, LAC 23
   strcmp(paging_expecting_imsi, imsi) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + Paging: now used by 5 (attached,test_no_authen,SMS-receiver,SMS,Paging)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen: now used by 4 (attached,SMS-receiver,SMS,Paging)
   paging_sent == 1
   paging_stopped == 0
 - the subscriber and its pending request should remain
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen: now used by 5 (attached,SMS-receiver,SMS,Paging,test_no_authen)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen: now used by 4 (attached,SMS-receiver,SMS,Paging)
 - MS replies with Paging Response, we deliver the SMS
   MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
   new conn
@@ -211,8 +211,8 @@
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 6
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 5 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 6 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -237,18 +237,18 @@
 DMSC msc_tx 91 bytes to IMSI-901700000004620:MSISDN-46071 via GERAN-A
 - DTAP --GERAN-A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - Paging: now used by 5 (attached,SMS-receiver,SMS,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: connection still has active transaction: SMS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 4 (attached,SMS-receiver,SMS,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x20: trans_sms)
   dtap_tx_confirmed == 1
   paging_stopped == 1
 - SMS was delivered, no requests pending for subscr
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen: now used by 5 (attached,SMS-receiver,SMS,conn,test_no_authen)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen: now used by 4 (attached,SMS-receiver,SMS,conn)
 - conn is still open to wait for SMS ack dance
   llist_count(&net->ran_conns) == 1
 - MS replies with CP-ACK for received SMS
@@ -281,21 +281,21 @@
 DLSMS SMR(0) RX SMS RP-ACK
 DLSMS SMR(0) new RP state WAIT_FOR_RP_ACK -> IDLE
 DLSMS RX SMS RP-ACK (MO)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS-receiver: now used by 3 (attached,SMS,conn)
 DLSMS SMR(0) TX: MNSMS-REL-REQ
 DLSMS SMC(0) message MNSMS-REL-REQ received in state MM_ESTABLISHED
 DLSMS SMC(0) new CP state MM_ESTABLISHED -> IDLE
 DLSMS Got MMSMS_REL_REQ, destroying transaction.
 DLSMS SMR(0) clearing SMR instance
 DLSMS SMC(0) clearing instance
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS: now used by 2 (attached,conn)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - trans_sms == 1 (0x2: dtap)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 0 (0x0: )
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   dtap_tx_confirmed == 1
   bssap_clear_sent == 1
@@ -309,7 +309,7 @@
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -320,12 +320,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -360,12 +360,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -386,13 +386,13 @@
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -410,7 +410,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -424,12 +424,12 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: lu_compl_vlr_new_tmsi()
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100, with TMSI 0x03020100
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->ran_conns) == 1
@@ -445,12 +445,12 @@
 DRLL Dispatching 04.08 message SMS:0x01 (0x9:0x1)
 DRLL subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100: Message not permitted for initial conn: SMS:0x01
 - even though the TMSI is not acked, we can already find the subscr with it
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 + test_no_authen_tmsi: now used by 2 (conn,test_no_authen_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0x03020100
   vsub->tmsi == 0xffffffff
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 - test_no_authen_tmsi: now used by 1 (conn)
 - MS sends TMSI Realloc Complete
   MSC <--GERAN-A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100: MSC conn use + dtap == 1 (0x2: dtap)
@@ -458,9 +458,9 @@
 DMM TMSI Reallocation Completed. Subscriber: IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=1)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + attached: now used by 2 (conn,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -472,8 +472,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + release == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (conn,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (conn,attached)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -488,16 +488,16 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - Subscriber has the new TMSI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_tmsi: now used by 2 (attached,test_no_authen_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0xffffffff
   vsub->tmsi == 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_tmsi: now used by 1 (attached)
 ---
 - after a while, a new conn sends a CM Service Request using above TMSI
   MSC <--GERAN-A-- MS: GSM48_MT_MM_CM_SERV_REQ
@@ -511,8 +511,8 @@
 DVLR Process_Access_Request_VLR(TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: is child of RAN_conn(TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + proc_arq_vlr_fn_init: now used by 2 (attached,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + conn: now used by 3 (attached,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -529,7 +529,7 @@
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + cm_service == 2 (0x9: compl_l3,cm_service)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: still awaiting first request after a CM Service Request
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - proc_arq_vlr_fn_init: now used by 2 (attached,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - compl_l3 == 1 (0x8: cm_service)
   cm_service_result_sent == 1
@@ -539,8 +539,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   bssap_clear_sent == 1
 - all requests serviced, conn has been released
@@ -553,17 +553,17 @@
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
 - an SMS is sent, MS is paged using above TMSI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_tmsi: now used by 2 (attached,test_no_authen_tmsi)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + SMS-receiver: now used by 3 (attached,test_no_authen_tmsi,SMS-receiver)
 DLSMS Going to send a MT SMS
 DCC (ti 00 sub IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 callref 40000002) New transaction
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + SMS: now used by 4 (attached,test_no_authen_tmsi,SMS-receiver,SMS)
 DLSMS SMC(0) instance created for network
 DLSMS SMR(0) instance created for network.
 DLSMS SMR(0) message SM-RL-DATA_REQ received in state IDLE
@@ -575,15 +575,15 @@
 DMM Subscriber IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 not paged yet, start paging.
   GERAN-A sends out paging request to IMSI 901700000004620, TMSI 0x03020100, LAC 23
   paging_expecting_tmsi == 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + Paging: now used by 5 (attached,test_no_authen_tmsi,SMS-receiver,SMS,Paging)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_tmsi: now used by 4 (attached,SMS-receiver,SMS,Paging)
   paging_sent == 1
   paging_stopped == 0
 - the subscriber and its pending request should remain
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_tmsi: now used by 5 (attached,SMS-receiver,SMS,Paging,test_no_authen_tmsi)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_tmsi: now used by 4 (attached,SMS-receiver,SMS,Paging)
 - MS replies with Paging Response using TMSI, we deliver the SMS
   MSC <--GERAN-A-- MS: GSM48_MT_RR_PAG_RESP
   new conn
@@ -596,8 +596,8 @@
 DVLR Process_Access_Request_VLR(TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: is child of RAN_conn(TMSI-0x03020100:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 5
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 6
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + proc_arq_vlr_fn_init: now used by 5 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + conn: now used by 6 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -622,18 +622,18 @@
 DMSC msc_tx 91 bytes to IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 via GERAN-A
 - DTAP --GERAN-A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - Paging: now used by 5 (attached,SMS-receiver,SMS,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: connection still has active transaction: SMS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - proc_arq_vlr_fn_init: now used by 4 (attached,SMS-receiver,SMS,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - compl_l3 == 1 (0x20: trans_sms)
   dtap_tx_confirmed == 1
   paging_stopped == 1
 - SMS was delivered, no requests pending for subscr
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_tmsi: now used by 5 (attached,SMS-receiver,SMS,conn,test_no_authen_tmsi)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_tmsi: now used by 4 (attached,SMS-receiver,SMS,conn)
 - conn is still open to wait for SMS ack dance
   llist_count(&net->ran_conns) == 1
 - MS replies with CP-ACK for received SMS
@@ -666,21 +666,21 @@
 DLSMS SMR(0) RX SMS RP-ACK
 DLSMS SMR(0) new RP state WAIT_FOR_RP_ACK -> IDLE
 DLSMS RX SMS RP-ACK (MO)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - SMS-receiver: now used by 3 (attached,SMS,conn)
 DLSMS SMR(0) TX: MNSMS-REL-REQ
 DLSMS SMC(0) message MNSMS-REL-REQ received in state MM_ESTABLISHED
 DLSMS SMC(0) new CP state MM_ESTABLISHED -> IDLE
 DLSMS Got MMSMS_REL_REQ, destroying transaction.
 DLSMS SMR(0) clearing SMR instance
 DLSMS SMC(0) clearing instance
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - SMS: now used by 2 (attached,conn)
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - trans_sms == 1 (0x2: dtap)
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - dtap == 0 (0x0: )
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   dtap_tx_confirmed == 1
   bssap_clear_sent == 1
@@ -694,7 +694,7 @@
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:PAGING_RESP){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -712,10 +712,10 @@
 DVLR vlr_lu_fsm(TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(TMSI-0x03020100:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + _lu_fsm_associate_vsub: now used by 2 (attached,_lu_fsm_associate_vsub)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + conn: now used by 3 (attached,_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - _lu_fsm_associate_vsub: now used by 2 (attached,conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -736,13 +736,13 @@
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_gsupc_read_cb: now used by 3 (attached,conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=3)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_gsupc_read_cb: now used by 2 (attached,conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -760,7 +760,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_gsupc_read_cb: now used by 3 (attached,conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -774,12 +774,12 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: lu_compl_vlr_new_tmsi()
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=3)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504, with TMSI 0x07060504
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 - vlr_gsupc_read_cb: now used by 2 (attached,conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->ran_conns) == 1
@@ -795,12 +795,12 @@
 DRLL Dispatching 04.08 message SMS:0x01 (0x9:0x1)
 DRLL subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504: Message not permitted for initial conn: SMS:0x01
 - even though the TMSI is not acked, we can already find the subscr with it
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 + test_no_authen_tmsi: now used by 3 (attached,conn,test_no_authen_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0x07060504
   vsub->tmsi == 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 - test_no_authen_tmsi: now used by 2 (attached,conn)
 - MS sends TMSI Realloc Complete
   MSC <--GERAN-A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504: MSC conn use + dtap == 1 (0x2: dtap)
@@ -808,7 +808,7 @@
 DMM TMSI Reallocation Completed. Subscriber: IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
@@ -821,8 +821,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504: MSC conn use + release == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -837,16 +837,16 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - subscriber has the new TMSI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + test_no_authen_tmsi: now used by 2 (attached,test_no_authen_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0xffffffff
   vsub->tmsi == 0x07060504
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - test_no_authen_tmsi: now used by 1 (attached)
 ---
 - subscriber detaches, using new TMSI
   MSC <--GERAN-A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
@@ -855,12 +855,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(TMSI)=117835012
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -895,12 +895,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -921,13 +921,13 @@
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -945,7 +945,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT, and we send an ID Request for the IMEI to the MS
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -963,13 +963,13 @@
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051802
 - DTAP matches expected message
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - We will only do business when the IMEI is known
   llist_count(&net->ran_conns) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_imei: now used by 2 (conn,test_no_authen_imei)
   vsub->imei[0] == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_imei: now used by 1 (conn)
 ran_conn_is_accepted() == false
   requests shall be thwarted
 DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
@@ -995,11 +995,11 @@
 - HLR accepts the IMEI
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: 32010809710000004026f0510100
 DVLR GSUP rx 14: 32010809710000004026f0510100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_HLR_IMEI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI}: Received Event LU_COMPL_VLR_E_IMEI_CHECK_ACK
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1011,10 +1011,10 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -1029,13 +1029,13 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - Subscriber has the IMEI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_imei: now used by 2 (attached,test_no_authen_imei)
   strcmp(vsub->imei, "423423423423420") == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_imei: now used by 1 (attached)
 ---
 - subscriber detaches
   MSC <--GERAN-A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
@@ -1044,12 +1044,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -1084,12 +1084,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -1110,13 +1110,13 @@
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -1134,7 +1134,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT, and we send an ID Request for the IMEI to the MS
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1152,13 +1152,13 @@
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051802
 - DTAP matches expected message
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - We will only do business when the IMEI is known
   llist_count(&net->ran_conns) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_tmsi_imei: now used by 2 (conn,test_no_authen_tmsi_imei)
   vsub->imei[0] == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_tmsi_imei: now used by 1 (conn)
 ran_conn_is_accepted() == false
   requests shall be thwarted
 DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
@@ -1184,15 +1184,15 @@
 - HLR accepts the IMEI
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: 32010809710000004026f0510100
 DVLR GSUP rx 14: 32010809710000004026f0510100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_HLR_IMEI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: Received Event LU_COMPL_VLR_E_IMEI_CHECK_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: lu_compl_vlr_new_tmsi()
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100, with TMSI 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: vlr_gsupc_read_cb() returns 0
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->ran_conns) == 1
@@ -1214,9 +1214,9 @@
 DMM TMSI Reallocation Completed. Subscriber: IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=1)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + attached: now used by 2 (conn,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1228,8 +1228,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + release == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (conn,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (conn,attached)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -1245,14 +1245,14 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - Subscriber has the IMEI and TMSI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_tmsi_imei: now used by 2 (attached,test_no_authen_tmsi_imei)
   strcmp(vsub->imei, "423423423423420") == 0
   vsub->tmsi == 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_tmsi_imei: now used by 1 (attached)
 ---
 - subscriber detaches
   MSC <--GERAN-A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
@@ -1261,12 +1261,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -1301,12 +1301,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DMSC msc_tx 3 bytes to IMSI-901700000004620 via GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051803
 - DTAP matches expected message
@@ -1339,19 +1339,19 @@
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event RAN_CONN_E_UNUSED
   lu_result_sent == 0
 - Subscriber has the IMEISV from the ID Response
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + test_no_authen_imeisv: now used by 2 (conn,test_no_authen_imeisv)
   strcmp(vsub->imeisv, "4234234234234275") == 0
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - test_no_authen_imeisv: now used by 1 (conn)
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -1369,7 +1369,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1383,7 +1383,7 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -1395,11 +1395,11 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
@@ -1414,7 +1414,7 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -1425,12 +1425,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -1465,12 +1465,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DMSC msc_tx 3 bytes to IMSI-901700000004620 via GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051803
 - DTAP matches expected message
@@ -1503,19 +1503,19 @@
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event RAN_CONN_E_UNUSED
   lu_result_sent == 0
 - Subscriber has the IMEISV from the ID Response
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + test_no_authen_imeisv_imei: now used by 2 (conn,test_no_authen_imeisv_imei)
   strcmp(vsub->imeisv, "4234234234234275") == 0
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - test_no_authen_imeisv_imei: now used by 1 (conn)
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -1533,7 +1533,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT, and we send an ID Request for the IMEI to the MS
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1551,13 +1551,13 @@
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051802
 - DTAP matches expected message
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - We will only do business when the IMEI is known
   llist_count(&net->ran_conns) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_imeisv_imei: now used by 2 (conn,test_no_authen_imeisv_imei)
   vsub->imei[0] == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_imeisv_imei: now used by 1 (conn)
 ran_conn_is_accepted() == false
   requests shall be thwarted
 DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
@@ -1583,11 +1583,11 @@
 - HLR accepts the IMEI
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: 32010809710000004026f0510100
 DVLR GSUP rx 14: 32010809710000004026f0510100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_HLR_IMEI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI}: Received Event LU_COMPL_VLR_E_IMEI_CHECK_ACK
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1599,10 +1599,10 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -1617,13 +1617,13 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - Subscriber has the IMEI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_imeisv_imei: now used by 2 (attached,test_no_authen_imeisv_imei)
   strcmp(vsub->imei, "423423423423420") == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_imeisv_imei: now used by 1 (attached)
 ---
 - subscriber detaches
   MSC <--GERAN-A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
@@ -1632,12 +1632,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -1672,12 +1672,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DMSC msc_tx 3 bytes to IMSI-901700000004620 via GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051803
 - DTAP matches expected message
@@ -1710,19 +1710,19 @@
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event RAN_CONN_E_UNUSED
   lu_result_sent == 0
 - Subscriber has the IMEISV from the ID Response
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + test_no_authen_imeisv_tmsi: now used by 2 (conn,test_no_authen_imeisv_tmsi)
   strcmp(vsub->imeisv, "4234234234234275") == 0
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - test_no_authen_imeisv_tmsi: now used by 1 (conn)
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -1740,7 +1740,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1754,12 +1754,12 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: lu_compl_vlr_new_tmsi()
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100, with TMSI 0x03020100
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->ran_conns) == 1
@@ -1775,12 +1775,12 @@
 DRLL Dispatching 04.08 message SMS:0x01 (0x9:0x1)
 DRLL subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100: Message not permitted for initial conn: SMS:0x01
 - even though the TMSI is not acked, we can already find the subscr with it
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 + test_no_authen_imeisv_tmsi: now used by 2 (conn,test_no_authen_imeisv_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0x03020100
   vsub->tmsi == 0xffffffff
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 - test_no_authen_imeisv_tmsi: now used by 1 (conn)
 - MS sends TMSI Realloc Complete
   MSC <--GERAN-A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100: MSC conn use + dtap == 1 (0x2: dtap)
@@ -1788,9 +1788,9 @@
 DMM TMSI Reallocation Completed. Subscriber: IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=1)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + attached: now used by 2 (conn,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1802,8 +1802,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + release == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (conn,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (conn,attached)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -1818,7 +1818,7 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -1836,10 +1836,10 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + _lu_fsm_associate_vsub: now used by 2 (attached,_lu_fsm_associate_vsub)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + conn: now used by 3 (attached,_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - _lu_fsm_associate_vsub: now used by 2 (attached,conn)
 DMSC msc_tx 3 bytes to IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 via GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051803
 - DTAP matches expected message
@@ -1872,19 +1872,19 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event RAN_CONN_E_UNUSED
   lu_result_sent == 0
 - Subscriber has the IMEISV from the ID Response
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_imeisv_tmsi: now used by 3 (attached,conn,test_no_authen_imeisv_tmsi)
   strcmp(vsub->imeisv, "5234234234234276") == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_imeisv_tmsi: now used by 2 (attached,conn)
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_gsupc_read_cb: now used by 3 (attached,conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=3)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_gsupc_read_cb: now used by 2 (attached,conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -1902,7 +1902,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_gsupc_read_cb: now used by 3 (attached,conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1916,12 +1916,12 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: lu_compl_vlr_new_tmsi()
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=3)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504, with TMSI 0x07060504
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 - vlr_gsupc_read_cb: now used by 2 (attached,conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->ran_conns) == 1
@@ -1937,12 +1937,12 @@
 DRLL Dispatching 04.08 message SMS:0x01 (0x9:0x1)
 DRLL subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504: Message not permitted for initial conn: SMS:0x01
 - even though the TMSI is not acked, we can already find the subscr with it
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 + test_no_authen_imeisv_tmsi: now used by 3 (attached,conn,test_no_authen_imeisv_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0x07060504
   vsub->tmsi == 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504 - test_no_authen_imeisv_tmsi: now used by 2 (attached,conn)
 - MS sends TMSI Realloc Complete
   MSC <--GERAN-A-- MS: GSM48_MT_MM_TMSI_REALL_COMPL
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504: MSC conn use + dtap == 1 (0x2: dtap)
@@ -1950,7 +1950,7 @@
 DMM TMSI Reallocation Completed. Subscriber: IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:TMSInew-0x07060504:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
@@ -1963,8 +1963,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504: MSC conn use + release == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -1979,16 +1979,16 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - subscriber has the new TMSI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + test_no_authen_imeisv_tmsi: now used by 2 (attached,test_no_authen_imeisv_tmsi)
   vsub != NULL == 1
   strcmp(vsub->imsi, imsi) == 0
   vsub->tmsi_new == 0xffffffff
   vsub->tmsi == 0x07060504
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - test_no_authen_imeisv_tmsi: now used by 1 (attached)
 ---
 - subscriber detaches, using new TMSI
   MSC <--GERAN-A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
@@ -1997,12 +1997,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(TMSI)=117835012
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x07060504
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -2037,12 +2037,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DMSC msc_tx 3 bytes to IMSI-901700000004620 via GERAN-A
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051803
 - DTAP matches expected message
@@ -2075,19 +2075,19 @@
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event RAN_CONN_E_UNUSED
   lu_result_sent == 0
 - Subscriber has the IMEISV from the ID Response
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + test_no_authen_imeisv_tmsi_imei: now used by 2 (conn,test_no_authen_imeisv_tmsi_imei)
   strcmp(vsub->imeisv, "4234234234234275") == 0
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - test_no_authen_imeisv_tmsi_imei: now used by 1 (conn)
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - having received subscriber data does not mean acceptance
@@ -2105,7 +2105,7 @@
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT, and we send an ID Request for the IMEI to the MS
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -2123,13 +2123,13 @@
 - DTAP --GERAN-A--> MS: GSM48_MT_MM_ID_REQ: 051802
 - DTAP matches expected message
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - We will only do business when the IMEI is known
   llist_count(&net->ran_conns) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_imeisv_tmsi_imei: now used by 2 (conn,test_no_authen_imeisv_tmsi_imei)
   vsub->imei[0] == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_imeisv_tmsi_imei: now used by 1 (conn)
 ran_conn_is_accepted() == false
   requests shall be thwarted
 DRLL Dispatching 04.08 message GSM48_MT_CC_SETUP (0x3:0x5)
@@ -2155,15 +2155,15 @@
 - HLR accepts the IMEI
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: 32010809710000004026f0510100
 DVLR GSUP rx 14: 32010809710000004026f0510100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_HLR_IMEI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: Received Event LU_COMPL_VLR_E_IMEI_CHECK_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: lu_compl_vlr_new_tmsi()
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100, with TMSI 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_CHECK_IMEI_RESULT: vlr_gsupc_read_cb() returns 0
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->ran_conns) == 1
@@ -2185,9 +2185,9 @@
 DMM TMSI Reallocation Completed. Subscriber: IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSInew-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_TMSI_ACK
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=1)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + attached: now used by 2 (conn,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -2199,8 +2199,8 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use + release == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (conn,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (conn,attached)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -2216,15 +2216,15 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 - Subscriber has the IMEISV, IMEI and TMSI
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + test_no_authen_imeisv_tmsi_imei: now used by 2 (attached,test_no_authen_imeisv_tmsi_imei)
   strcmp(vsub->imeisv, "4234234234234275") == 0
   strcmp(vsub->imei, "423423423423420") == 0
   vsub->tmsi == 0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - test_no_authen_imeisv_tmsi_imei: now used by 1 (attached)
 ---
 - subscriber detaches
   MSC <--GERAN-A-- MS: GSM48_MT_MM_IMSI_DETACH_IND
@@ -2233,12 +2233,12 @@
 DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + gsm48_rx_mm_imsi_detach_ind: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - attached: now used by 1 (gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100 - gsm48_rx_mm_imsi_detach_ind: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071:TMSI-0x03020100
 DMM RAN_conn{RAN_CONN_S_NEW}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn{RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
@@ -2275,12 +2275,12 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -2301,19 +2301,19 @@
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -2327,7 +2327,7 @@
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -2339,11 +2339,11 @@
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
@@ -2358,16 +2358,16 @@
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + test_no_authen_subscr_expire: now used by 2 (attached,test_no_authen_subscr_expire)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - test_no_authen_subscr_expire: now used by 1 (attached)
 - Total time passed: 3901.000000 s
 DVLR IMSI-901700000004620:MSISDN-46071: Location Update expired
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 2 (attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 1 (attached)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
   llist_count(&net->ran_conns) == 0
 ===== test_no_authen_subscr_expire: SUCCESS