[ 0:01] | load /home/xrockai/src/divine/nightly/test/svcomp/recursion/Ackermann02_false.c Ackermann02_false.c [ 0:01] | expect --result error --location Ackermann02_false.c:45 [ 0:01] | expect --trace FAULT: --trace-count 1 [ 0:01] | cc -o testcase.bc Ackermann02_false.c [ 0:01] | verify --max-memory 4GiB --max-time 600 --threads 2 --report-filename verify.out --solver stp --symbolic --sequential testcase.bc [ 0:01] compiling Ackermann02_false.c [ 0:01] loading bitcode … DiOS … LART … RR … constants … done [ 0:12] booting … done [ 0:13] states per second: 36.9261 [ 0:14] state count: 37 [ 0:14] mips: 0.27 [ 0:14] symbolic: 1 [ 0:14] [ 0:14] error found: yes [ 0:14] error trace: | [ 0:14] ASSUME (not (bvslt var_1 #x00000000)) [ 0:14] ASSUME (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) [ 0:14] ASSUME (not (bvslt var_2 #x00000000)) [ 0:14] ASSUME (and (not (bvslt var_2 #x00000000)) (not (bvsgt var_2 #x00000017))) [ 0:14] ASSUME (and (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) (not (= var_1 #x00000000))) [ 0:14] ASSUME (and (and (not (bvslt var_2 #x00000000)) (not (bvsgt var_2 #x00000017))) (= var_2 #x00000000)) [ 0:14] ASSUME (and (and (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) (not (= var_1 #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) [ 0:14] ASSUME (and (and (and (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) (not (= var_1 #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) [ 0:14] ASSUME (and (and (and (and (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) (not (= var_1 #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (= (bvsub (bvsub var_1 #x00000001) #x00000001) #x00000000)) [ 0:14] ASSUME (and (and (and (and (and (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) (not (= var_1 #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (= (bvsub (bvsub var_1 #x00000001) #x00000001) #x00000000)) (= (bvsub (bvsub var_1 #x00000001) #x00000001) #x00000000)) [ 0:14] ASSUME (and (and (and (and (and (and (and (not (bvslt var_1 #x00000000)) (not (bvsgt var_1 #x00000003))) (not (= var_1 #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (not (= (bvsub var_1 #x00000001) #x00000000))) (= (bvsub (bvsub var_1 #x00000001) #x00000001) #x00000000)) (= (bvsub (bvsub var_1 #x00000001) #x00000001) #x00000000)) (not (bvslt var_1 #x00000002))) [ 0:14] FAULT: verifier error called [ 0:14] [0] FATAL: dios assertion violation in userspace [ 0:14] [ 0:14] active stack: [ 0:14] - symbol: void __dios::FaultBase::handler<__dios::Context>(_VM_Fault, _VM_Frame*, void (*)()) [ 0:15] location: /dios/sys/fault.hpp:118 [ 0:15] - symbol: __dios_fault [ 0:15] location: /dios/arch/divm/fault.c:12 [ 0:15] - symbol: __VERIFIER_error [ 0:15] location: /dios/libc/svcomp/svcomp-error.cpp:5 [ 0:15] - symbol: main [ 0:15] location: Ackermann02_false.c:45 [ 0:15] - symbol: __dios_start [ 0:15] location: /dios/libc/sys/start.cpp:94 [ 0:15] + divine sim --batch --skip-init --load-report verify.out [ 0:15] [ 0:25] ^ —————. —.— . . —.— . . .————— . . [ 0:25] ——— | | | | | | |\ | | | | [ 0:25] —(o)— | | | | | | | \ | |———— '————| [ 0:25] ——————— | | | \ / | | \| | | [ 0:25] ————————— —————' —'— ' —'— ' ' '————— ' [ 0:25] [ 0:25] Welcome to 'divine sim', an interactive debugger. Type 'help' to get started. [ 0:25] traced states: [ 0:26] ▶ state #6 [new] -- active threads: [0:0] -- [ 0:26] T: FAULT: verifier error called [ 0:26] # executing void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118 [ 0:26] # NOTE: $frame in __dios_fault [ 0:26] > backtrace [ 0:26] void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118 [ 0:26] __dios_fault at /dios/arch/divm/fault.c:12 [ 0:26] __VERIFIER_error at /dios/libc/svcomp/svcomp-error.cpp:5 [ 0:26] main at Ackermann02_false.c:45 [ 0:26] __dios_start at /dios/libc/sys/start.cpp:94 [ 0:26] # executing void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118 [ 0:26] # NOTE: $frame in __dios_fault