Simulation Results: otbn

 
17/03/2026 16:08:08 DVSim: v1.16.0 sha: bb824c6 json Branch: master Tool: xcelium [unknown]
Coverage statistics
  • Total
  • 93.30 %
  • code
  • 93.17 %
  • assert
  • 88.43 %
  • func
  • 98.31 %
  • block
  • 98.98 %
  • line
  • 98.95 %
  • branch
  • 86.59 %
  • toggle
  • 89.71 %
  • FSM
  • 97.44 %
Validation stages
V1
90.91%
V2
84.21%
V2S
61.29%
V3
0.00%
Testpoint Test Max Runtime Sim Time Pass Total %
smoke 1 1 100.00
otbn_smoke 10.000s 0.000us 1 1 100.00
single_binary 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
csr_hw_reset 1 1 100.00
otbn_csr_hw_reset 3.000s 0.000us 1 1 100.00
csr_rw 1 1 100.00
otbn_csr_rw 4.000s 0.000us 1 1 100.00
csr_bit_bash 1 1 100.00
otbn_csr_bit_bash 6.000s 0.000us 1 1 100.00
csr_aliasing 1 1 100.00
otbn_csr_aliasing 5.000s 0.000us 1 1 100.00
csr_mem_rw_with_rand_reset 1 1 100.00
otbn_csr_mem_rw_with_rand_reset 5.000s 0.000us 1 1 100.00
regwen_csr_and_corresponding_lockable_csr 2 2 100.00
otbn_csr_rw 4.000s 0.000us 1 1 100.00
otbn_csr_aliasing 5.000s 0.000us 1 1 100.00
mem_walk 1 1 100.00
otbn_mem_walk 30.000s 0.000us 1 1 100.00
mem_partial_access 1 1 100.00
otbn_mem_partial_access 46.000s 0.000us 1 1 100.00
Testpoint Test Max Runtime Sim Time Pass Total %
reset_recovery 0 1 0.00
otbn_reset 3.000s 0.000us 0 1 0.00
multi_error 1 1 100.00
otbn_multi_err 44.000s 0.000us 1 1 100.00
back_to_back 0 1 0.00
otbn_multi 6.000s 0.000us 0 1 0.00
stress_all 0 1 0.00
otbn_stress_all 11.000s 0.000us 0 1 0.00
lc_escalation 1 1 100.00
otbn_escalate 5.000s 0.000us 1 1 100.00
zero_state_err_urnd 1 1 100.00
otbn_zero_state_err_urnd 5.000s 0.000us 1 1 100.00
sw_errs_fatal_chk 1 1 100.00
otbn_sw_errs_fatal_chk 6.000s 0.000us 1 1 100.00
alert_test 1 1 100.00
otbn_alert_test 4.000s 0.000us 1 1 100.00
intr_test 1 1 100.00
otbn_intr_test 4.000s 0.000us 1 1 100.00
tl_d_oob_addr_access 1 1 100.00
otbn_tl_errors 6.000s 0.000us 1 1 100.00
tl_d_illegal_access 1 1 100.00
otbn_tl_errors 6.000s 0.000us 1 1 100.00
tl_d_outstanding_access 4 4 100.00
otbn_csr_hw_reset 3.000s 0.000us 1 1 100.00
otbn_csr_rw 4.000s 0.000us 1 1 100.00
otbn_csr_aliasing 5.000s 0.000us 1 1 100.00
otbn_same_csr_outstanding 4.000s 0.000us 1 1 100.00
tl_d_partial_access 4 4 100.00
otbn_csr_hw_reset 3.000s 0.000us 1 1 100.00
otbn_csr_rw 4.000s 0.000us 1 1 100.00
otbn_csr_aliasing 5.000s 0.000us 1 1 100.00
otbn_same_csr_outstanding 4.000s 0.000us 1 1 100.00
Testpoint Test Max Runtime Sim Time Pass Total %
mem_integrity 0 2 0.00
otbn_imem_err 5.000s 0.000us 0 1 0.00
otbn_dmem_err 4.000s 0.000us 0 1 0.00
internal_integrity 2 4 50.00
otbn_alu_bignum_mod_err 7.000s 0.000us 1 1 100.00
otbn_controller_ispr_rdata_err 4.000s 0.000us 0 1 0.00
otbn_mac_bignum_acc_err 4.000s 0.000us 1 1 100.00
otbn_urnd_err 4.000s 0.000us 0 1 0.00
illegal_bus_access 1 1 100.00
otbn_illegal_mem_acc 5.000s 0.000us 1 1 100.00
otbn_mem_gnt_acc_err 1 1 100.00
otbn_mem_gnt_acc_err 10.000s 0.000us 1 1 100.00
otbn_non_sec_partial_wipe 1 1 100.00
otbn_partial_wipe 4.000s 0.000us 1 1 100.00
tl_intg_err 2 2 100.00
otbn_tl_intg_err 16.000s 0.000us 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
passthru_mem_tl_intg_err 1 1 100.00
otbn_passthru_mem_tl_intg_err 48.000s 0.000us 1 1 100.00
prim_fsm_check 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
prim_count_check 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_mem_scramble 1 1 100.00
otbn_smoke 10.000s 0.000us 1 1 100.00
sec_cm_data_mem_integrity 0 1 0.00
otbn_dmem_err 4.000s 0.000us 0 1 0.00
sec_cm_instruction_mem_integrity 0 1 0.00
otbn_imem_err 5.000s 0.000us 0 1 0.00
sec_cm_bus_integrity 1 1 100.00
otbn_tl_intg_err 16.000s 0.000us 1 1 100.00
sec_cm_controller_fsm_global_esc 1 1 100.00
otbn_escalate 5.000s 0.000us 1 1 100.00
sec_cm_controller_fsm_local_esc 3 5 60.00
otbn_imem_err 5.000s 0.000us 0 1 0.00
otbn_dmem_err 4.000s 0.000us 0 1 0.00
otbn_zero_state_err_urnd 5.000s 0.000us 1 1 100.00
otbn_illegal_mem_acc 5.000s 0.000us 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_controller_fsm_sparse 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_scramble_key_sideload 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_scramble_ctrl_fsm_local_esc 3 5 60.00
otbn_imem_err 5.000s 0.000us 0 1 0.00
otbn_dmem_err 4.000s 0.000us 0 1 0.00
otbn_zero_state_err_urnd 5.000s 0.000us 1 1 100.00
otbn_illegal_mem_acc 5.000s 0.000us 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_scramble_ctrl_fsm_sparse 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_start_stop_ctrl_fsm_global_esc 1 1 100.00
otbn_escalate 5.000s 0.000us 1 1 100.00
sec_cm_start_stop_ctrl_fsm_local_esc 3 5 60.00
otbn_imem_err 5.000s 0.000us 0 1 0.00
otbn_dmem_err 4.000s 0.000us 0 1 0.00
otbn_zero_state_err_urnd 5.000s 0.000us 1 1 100.00
otbn_illegal_mem_acc 5.000s 0.000us 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_start_stop_ctrl_fsm_sparse 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_data_reg_sw_sca 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_ctrl_redun 1 1 100.00
otbn_ctrl_redun 7.000s 0.000us 1 1 100.00
sec_cm_pc_ctrl_flow_redun 1 1 100.00
otbn_pc_ctrl_flow_redun 7.000s 0.000us 1 1 100.00
sec_cm_rnd_bus_consistency 0 1 0.00
otbn_rnd_sec_cm 8.000s 0.000us 0 1 0.00
sec_cm_rnd_rng_digest 0 1 0.00
otbn_rnd_sec_cm 8.000s 0.000us 0 1 0.00
sec_cm_rf_base_data_reg_sw_integrity 1 1 100.00
otbn_rf_base_intg_err 7.000s 0.000us 1 1 100.00
sec_cm_rf_base_data_reg_sw_glitch_detect 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_stack_wr_ptr_ctr_redun 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_rf_bignum_data_reg_sw_integrity 1 1 100.00
otbn_rf_bignum_intg_err 14.000s 0.000us 1 1 100.00
sec_cm_rf_bignum_data_reg_sw_glitch_detect 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_loop_stack_ctr_redun 1 1 100.00
otbn_sec_cm 226.000s 0.000us 1 1 100.00
sec_cm_loop_stack_addr_integrity 1 1 100.00
otbn_stack_addr_integ_chk 4.000s 0.000us 1 1 100.00
sec_cm_call_stack_addr_integrity 1 1 100.00
otbn_stack_addr_integ_chk 4.000s 0.000us 1 1 100.00
sec_cm_start_stop_ctrl_state_consistency 1 1 100.00
otbn_sec_wipe_err 4.000s 0.000us 1 1 100.00
sec_cm_data_mem_sec_wipe 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_instruction_mem_sec_wipe 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_data_reg_sw_sec_wipe 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_write_mem_integrity 0 1 0.00
otbn_multi 6.000s 0.000us 0 1 0.00
sec_cm_ctrl_flow_count 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_ctrl_flow_sca 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_data_mem_sw_noaccess 0 1 0.00
otbn_sw_no_acc 4.000s 0.000us 0 1 0.00
sec_cm_key_sideload 0 1 0.00
otbn_single 3.000s 0.000us 0 1 0.00
sec_cm_tlul_fifo_ctr_redun 1 1 100.00
otbn_sec_cm 226.000s 0.000us 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 5.000s 0.000us 0 1 0.00

Error Messages

   Test seed line log context
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_*/otbn_env_cov.sv, Line: *):(Time: * PS + *) Sampled value (*) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@*_*.cur_cp) is an illegal value.
otbn_single 71861912594234186907589501011046510529537201452506487449847068227396062190708 119
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 19504786 PS + 32) Sampled value (27705693518851634) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 19504786 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.trn2'
UVM_INFO @ 19504786 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_multi 44352001751601315603744044288613039851648040532974461110890614889853288607249 147
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 16936432 PS + 29) Sampled value (27705693518851633) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 16936432 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.trn1'
UVM_INFO @ 16936432 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_reset 99370383605701466820939767872038775736105269109887250234204477704346488950575 111
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 4019458 PS + 23) Sampled value (27705693518851633) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 4019458 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.trn1'
UVM_INFO @ 4019458 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_imem_err 69407983750933255731271671134379814989396303707040968120899229962847597670946 112
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 5522534 PS + 32) Sampled value (7092657510811465324) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 5522534 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.mulvl'
UVM_INFO @ 5522534 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_dmem_err 97513941087249069488386110006427736776797236398584047191786340996063362127564 112
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 4686298 PS + 29) Sampled value (7092657458986120813) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 4686298 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.addvm'
UVM_INFO @ 4686298 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_controller_ispr_rdata_err 20346828904570517273215159954245421177134963735129834931322368896142939573377 110
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 4247227 PS + 41) Sampled value (27705693518851633) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 4247227 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.trn1'
UVM_INFO @ 4247227 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_stress_all 9232361454588438567709392996791672575080435339482036945211307995529566064932 156
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 35823333 PS + 25) Sampled value (27705693199164534) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4206_1.cur_cp) is an illegal value.
UVM_FATAL @ 35823333 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.addv'
UVM_INFO @ 35823333 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_stress_all_with_rand_reset 101268151572266593435682858136507331891249272938374016168157192975742237640340 148
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 31758667 PS + 25) Sampled value (27705693401607286) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4208_1.cur_cp) is an illegal value.
UVM_FATAL @ 31758667 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.mulv'
UVM_INFO @ 31758667 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_rnd_sec_cm 48414692797120588139040241045137127744601573747176579547931905362026555366220 113
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 17934339 PS + 29) Sampled value (27705693535367275) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 17934339 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.unpk'
UVM_INFO @ 17934339 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_urnd_err 3884652447080879816929429390005075296153920446942786647283398708621108489371 107
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 17724959 PS + 25) Sampled value (27705693450625899) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 17724959 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.pack'
UVM_INFO @ 17724959 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---
otbn_sw_no_acc 74860365670043872615082448646596509167981307325238882673009097120565148688752 106
xmsim: *E,EILLEN: (File: /nightly/current_run/scratch/master/otbn-sim-xcelium/default/fusesoc-work/src/lowrisc_dv_otbn_env_0.1/otbn_env_cov.sv, Line: 733):(Time: 26206819 PS + 29) Sampled value (1815720322767735123308) for coverpoint (worklib.otbn_env_pkg::otbn_env_cov::pairwise_insn_cg@4205_1.cur_cp) is an illegal value.
UVM_FATAL @ 26206819 ps: (otbn_env_cov.sv:2538) [uvm_test_top.env.cov] Unknown encoding () for instruction `bn.mulvml'
UVM_INFO @ 26206819 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
--- UVM Report catcher Summary ---