Simulation Results: otbn

 
08/09/2026 16:50:36 DVSim: v1.52.1 sha: 1c01039 json Branch: master Tool: xcelium [24.03-s007]
Coverage statistics
  • Total
  • 89.41 %
  • code
  • 81.65 %
  • assert
  • 89.55 %
  • func
  • 97.03 %
  • block
  • 97.67 %
  • line
  • 97.88 %
  • branch
  • 81.48 %
  • toggle
  • 81.03 %
  • FSM
  • 66.20 %
Validation stages
V1
80.00%
V2
76.47%
V2S
76.00%
V3
0.00%
Testpoint Test Max Runtime Sim Time Pass Total %
smoke 1 2 50.00
otbn_smoke 22.000s 0.000us 0 1 0.00
otbn_smoke_vectorized 10.000s 21.778us 1 1 100.00
single_binary 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
csr_hw_reset 1 1 100.00
otbn_csr_hw_reset 9.000s 64.448us 1 1 100.00
csr_rw 1 1 100.00
otbn_csr_rw 65.000s 21.686us 1 1 100.00
csr_bit_bash 1 1 100.00
otbn_csr_bit_bash 23.000s 700.852us 1 1 100.00
csr_aliasing 1 1 100.00
otbn_csr_aliasing 4.000s 18.235us 1 1 100.00
csr_mem_rw_with_rand_reset 1 1 100.00
otbn_csr_mem_rw_with_rand_reset 10.000s 69.427us 1 1 100.00
regwen_csr_and_corresponding_lockable_csr 2 2 100.00
otbn_csr_rw 65.000s 21.686us 1 1 100.00
otbn_csr_aliasing 4.000s 18.235us 1 1 100.00
mem_walk 0 1 0.00
otbn_mem_walk 48.000s 0.000us 0 1 0.00
mem_partial_access 1 1 100.00
otbn_mem_partial_access 79.000s 1098.849us 1 1 100.00
Testpoint Test Max Runtime Sim Time Pass Total %
reset_recovery 1 1 100.00
otbn_reset 10.000s 258.428us 1 1 100.00
multi_error 0 1 0.00
otbn_multi_err 11.000s 51.432us 0 1 0.00
wfi 1 3 33.33
otbn_wfi_smoke 3.000s 38.006us 0 1 0.00
otbn_wfi_sec_wipe 13.000s 36.409us 1 1 100.00
otbn_wfi_back_to_back 3.000s 18.471us 0 1 0.00
back_to_back 1 1 100.00
otbn_multi 73.000s 646.742us 1 1 100.00
stress_all 1 1 100.00
otbn_stress_all 24.000s 121.904us 1 1 100.00
lc_escalation 0 1 0.00
otbn_escalate 1481.292s 0.000us 0 1 0.00
zero_state_err_urnd 1 1 100.00
otbn_zero_state_err_urnd 4.000s 15.697us 1 1 100.00
sw_errs_fatal_chk 1 1 100.00
otbn_sw_errs_fatal_chk 7.000s 37.002us 1 1 100.00
alert_test 1 1 100.00
otbn_alert_test 5.000s 51.188us 1 1 100.00
intr_test 1 1 100.00
otbn_intr_test 50.000s 37.537us 1 1 100.00
tl_d_oob_addr_access 1 1 100.00
otbn_tl_errors 7.000s 28.835us 1 1 100.00
tl_d_illegal_access 1 1 100.00
otbn_tl_errors 7.000s 28.835us 1 1 100.00
tl_d_outstanding_access 4 4 100.00
otbn_csr_hw_reset 9.000s 64.448us 1 1 100.00
otbn_csr_rw 65.000s 21.686us 1 1 100.00
otbn_csr_aliasing 4.000s 18.235us 1 1 100.00
otbn_same_csr_outstanding 3.000s 53.626us 1 1 100.00
tl_d_partial_access 4 4 100.00
otbn_csr_hw_reset 9.000s 64.448us 1 1 100.00
otbn_csr_rw 65.000s 21.686us 1 1 100.00
otbn_csr_aliasing 4.000s 18.235us 1 1 100.00
otbn_same_csr_outstanding 3.000s 53.626us 1 1 100.00
Testpoint Test Max Runtime Sim Time Pass Total %
mem_integrity 2 2 100.00
otbn_imem_err 17.000s 24.629us 1 1 100.00
otbn_dmem_err 5.000s 19.634us 1 1 100.00
internal_integrity 3 4 75.00
otbn_alu_bignum_mod_err 11.000s 17.140us 1 1 100.00
otbn_controller_ispr_rdata_err 16.000s 75.547us 1 1 100.00
otbn_mac_bignum_acc_err 18.000s 40.804us 1 1 100.00
otbn_urnd_err 5.000s 18.919us 0 1 0.00
illegal_bus_access 1 1 100.00
otbn_illegal_mem_acc 3.000s 17.591us 1 1 100.00
otbn_mem_gnt_acc_err 1 1 100.00
otbn_mem_gnt_acc_err 7.000s 64.799us 1 1 100.00
otbn_non_sec_partial_wipe 1 1 100.00
otbn_partial_wipe 4.000s 26.255us 1 1 100.00
tl_intg_err 2 2 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
otbn_tl_intg_err 9.000s 132.480us 1 1 100.00
passthru_mem_tl_intg_err 0 1 0.00
otbn_passthru_mem_tl_intg_err 40.000s 0.000us 0 1 0.00
prim_fsm_check 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
prim_count_check 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_mem_scramble 0 1 0.00
otbn_smoke 22.000s 0.000us 0 1 0.00
sec_cm_data_mem_integrity 1 1 100.00
otbn_dmem_err 5.000s 19.634us 1 1 100.00
sec_cm_instruction_mem_integrity 1 1 100.00
otbn_imem_err 17.000s 24.629us 1 1 100.00
sec_cm_bus_integrity 1 1 100.00
otbn_tl_intg_err 9.000s 132.480us 1 1 100.00
sec_cm_controller_fsm_global_esc 0 1 0.00
otbn_escalate 1481.292s 0.000us 0 1 0.00
sec_cm_controller_fsm_local_esc 5 5 100.00
otbn_imem_err 17.000s 24.629us 1 1 100.00
otbn_dmem_err 5.000s 19.634us 1 1 100.00
otbn_zero_state_err_urnd 4.000s 15.697us 1 1 100.00
otbn_illegal_mem_acc 3.000s 17.591us 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_controller_fsm_sparse 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_scramble_key_sideload 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_scramble_ctrl_fsm_local_esc 5 5 100.00
otbn_imem_err 17.000s 24.629us 1 1 100.00
otbn_dmem_err 5.000s 19.634us 1 1 100.00
otbn_zero_state_err_urnd 4.000s 15.697us 1 1 100.00
otbn_illegal_mem_acc 3.000s 17.591us 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_scramble_ctrl_fsm_sparse 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_start_stop_ctrl_fsm_global_esc 0 1 0.00
otbn_escalate 1481.292s 0.000us 0 1 0.00
sec_cm_start_stop_ctrl_fsm_local_esc 5 5 100.00
otbn_imem_err 17.000s 24.629us 1 1 100.00
otbn_dmem_err 5.000s 19.634us 1 1 100.00
otbn_zero_state_err_urnd 4.000s 15.697us 1 1 100.00
otbn_illegal_mem_acc 3.000s 17.591us 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_start_stop_ctrl_fsm_sparse 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_data_reg_sw_sca 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_ctrl_redun 1 1 100.00
otbn_ctrl_redun 4.000s 21.922us 1 1 100.00
sec_cm_pc_ctrl_flow_redun 1 1 100.00
otbn_pc_ctrl_flow_redun 10.000s 85.826us 1 1 100.00
sec_cm_rnd_bus_consistency 1 1 100.00
otbn_rnd_sec_cm 17.000s 170.112us 1 1 100.00
sec_cm_rnd_rng_digest 1 1 100.00
otbn_rnd_sec_cm 17.000s 170.112us 1 1 100.00
sec_cm_rf_base_data_reg_sw_integrity 0 1 0.00
otbn_rf_base_intg_err 5.000s 31.979us 0 1 0.00
sec_cm_rf_base_data_reg_sw_glitch_detect 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_stack_wr_ptr_ctr_redun 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_rf_bignum_data_reg_sw_integrity 1 1 100.00
otbn_rf_bignum_intg_err 21.000s 272.275us 1 1 100.00
sec_cm_rf_bignum_data_reg_sw_glitch_detect 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_loop_stack_ctr_redun 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
sec_cm_loop_stack_addr_integrity 0 1 0.00
otbn_stack_addr_integ_chk 22.000s 0.000us 0 1 0.00
sec_cm_call_stack_addr_integrity 0 1 0.00
otbn_stack_addr_integ_chk 22.000s 0.000us 0 1 0.00
sec_cm_start_stop_ctrl_state_consistency 1 1 100.00
otbn_sec_wipe_err 13.000s 25.369us 1 1 100.00
sec_cm_data_mem_sec_wipe 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_instruction_mem_sec_wipe 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_data_reg_sw_sec_wipe 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_write_mem_integrity 1 1 100.00
otbn_multi 73.000s 646.742us 1 1 100.00
sec_cm_ctrl_flow_count 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_ctrl_flow_sca 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_data_mem_sw_noaccess 1 1 100.00
otbn_sw_no_acc 40.000s 343.296us 1 1 100.00
sec_cm_key_sideload 1 1 100.00
otbn_single 20.000s 26.157us 1 1 100.00
sec_cm_tlul_fifo_ctr_redun 1 1 100.00
otbn_sec_cm 182.000s 6384.077us 1 1 100.00
Testpoint Test Max Runtime Sim Time Pass Total %
stress_all_with_rand_reset 0 1 0.00
otbn_stress_all_with_rand_reset 19.000s 36.491us 0 1 0.00

Error Messages

   Test seed line log context
Some pass patterns missing: ['^TEST PASSED (UVM_)?CHECKS$'] 5 test runs
otbn_smoke 76493597302292239386915034756272215083422545018755657826823218355301503133288 None
Trying to check out license...
Xcelium_Single_Core 24.00 - Failed
Xcelium_Safety_Sim 24.00 - Failed
Xcelium_Safety 24.00 - Failed
Xcelium_Multi_Core 24.00 - Failed
Xcelium_For_Partners 24.00 - Failed
xmsim: *F,NOLICN: Unable to checkout license for the simulation. 'lic_error LMF-03005'.
TOOL: xrun(64) 24.03-s007: Exiting on Sep 08, 2026 at 17:17:26 UTC (total: 00:00:22)
make: *** [/nightly/current_run/opentitan/hw/dv/tools/dvsim/sim.mk:64: simulate] Error 2
otbn_escalate 65124475679135299187715301282978302824374218444374510160946277887277209637497 None
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/nightly/current_run/opentitan/hw/ip/otbn/dv/rig/rig/gens/bad_deep_loop.py", line 122, in _gen_loop_head
enc_bodysize, end_addr = self._pick_bodysize(insn, model.pc, program)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
File "/nightly/current_run/opentitan/hw/ip/otbn/dv/rig/rig/gens/bad_deep_loop.py", line 67, in _pick_bodysize
assert bodysize is not None
^^^^^^^^^^^^^^^^^^^^
AssertionError
ninja: build stopped: subcommand failed.
make: *** [/nightly/current_run/opentitan/hw/dv/tools/dvsim/sim.mk:52: pre_run] Error 1
otbn_stack_addr_integ_chk 89739845523923163225144256355569912192825497951817915037589282952416703986686 None
Trying to check out license...
Xcelium_Single_Core 24.00 - Failed
Xcelium_Safety_Sim 24.00 - Failed
Xcelium_Safety 24.00 - Failed
Xcelium_Multi_Core 24.00 - Failed
Xcelium_For_Partners 24.00 - Failed
xmsim: *F,NOLICN: Unable to checkout license for the simulation. 'lic_error LMF-03005'.
TOOL: xrun(64) 24.03-s007: Exiting on Sep 08, 2026 at 17:00:58 UTC (total: 00:00:22)
make: *** [/nightly/current_run/opentitan/hw/dv/tools/dvsim/sim.mk:64: simulate] Error 2
otbn_passthru_mem_tl_intg_err 628817981140582678004610011480889053092773645267913305867787889506071830007 None
Trying to check out license...
Xcelium_Single_Core 24.00 - Failed
Xcelium_Safety_Sim 24.00 - Failed
Xcelium_Safety 24.00 - Failed
Xcelium_Multi_Core 24.00 - Failed
Xcelium_For_Partners 24.00 - Failed
xmsim: *F,NOLICN: Unable to checkout license for the simulation. 'lic_error LMF-03005'.
TOOL: xrun(64) 24.03-s007: Exiting on Sep 08, 2026 at 16:53:14 UTC (total: 00:00:40)
make: *** [/nightly/current_run/opentitan/hw/dv/tools/dvsim/sim.mk:64: simulate] Error 2
otbn_mem_walk 76861393048104022647965046677622983504041286622674080990684594560255398348941 None
Trying to check out license...
Xcelium_Single_Core 24.00 - Failed
Xcelium_Safety_Sim 24.00 - Failed
Xcelium_Safety 24.00 - Failed
Xcelium_Multi_Core 24.00 - Failed
Xcelium_For_Partners 24.00 - Failed
xmsim: *F,NOLICN: Unable to checkout license for the simulation. 'lic_error LMF-03005'.
TOOL: xrun(64) 24.03-s007: Exiting on Sep 08, 2026 at 16:53:17 UTC (total: 00:00:48)
make: *** [/nightly/current_run/opentitan/hw/dv/tools/dvsim/sim.mk:64: simulate] Error 2
UVM_FATAL (otbn_scoreboard.sv:440) [scoreboard] Check failed model_status == * (* [*] vs * [*]) Saw instruction when not in BUSY_EXECUTE operational state. 2 test runs
otbn_wfi_smoke 111581347586484220801598619420749966179708013391673469262526391190232432260713 132
UVM_INFO @ 38006070 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_wfi_back_to_back 84665120672936654584807085317017532755621499655865652394703362962913244441828 145
UVM_INFO @ 18470909 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
UVM_FATAL (otbn_scoreboard.sv:551) scoreboard [scoreboard] We saw a STATUS change * cycles ago that implied we'd get a recov alert but it still hasn't arrived. 1 test run
otbn_multi_err 104556009117685444312777928584392991660964774764004688477224962754910495656960 336
UVM_INFO @ 51432037 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
UVM_ERROR (uvm_sequencer_base.svh:757) sequencer [SEQREQZMB] The task responsible for requesting a wait_for_grant on sequencer 'sequencer' for sequence 'parent_sequence' has been killed, to avoid a deadlock the sequence will be removed from the arbitration queues 1 test run
otbn_rf_base_intg_err 6470158492104866287782529502011180738676821185212426557941527820347953676844 152
UVM_INFO @ 31978690 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
UVM_FATAL sequencer [SEQDEFPRI] Sequence parent_sequence has illegal priority: -* 1 test run
otbn_stress_all_with_rand_reset 27737342586812682334554528480738229212404103533535103649453367713914730554526 348
UVM_INFO @ 36491261 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
xmsim: *E,ASRTST (/nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_sva_*/otbn_idle_checker.sv,196): Assertion NotRunningWhenLocked_A has failed 1 test run
otbn_urnd_err 59994639832148112462082775367065557612304706515744534146705516719181522305360 146
UVM_ERROR @ 18919077 ps: (otbn_idle_checker.sv:196) [ASSERT FAILED] NotRunningWhenLocked_A
UVM_INFO @ 18919077 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---