[ 0:00] | load /var/obj/divine-nightly/semidbg/test/_expand/sym/ret-a.pkg.cpp/v.O0.cpp v.O0.cpp [ 0:00] | expect --result error --location v.O0.cpp:23 [ 0:00] | expect --trace FAULT: --trace-count 1 [ 0:00] | cc -o testcase.bc -std=c++14 -O0 v.O0.cpp [ 0:00] | verify --max-memory 4GiB --max-time 600 --threads 2 --report-filename verify.out --solver z3 --symbolic testcase.bc [ 0:00] compiling v.O0.cpp [ 0:00] loading bitcode … DiOS … LART … RR … constants … done [ 0:10] booting … done [ 0:10] states per second: 18.5185 [ 0:10] state count: 2 [ 0:10] mips: 0.19 [ 0:10] symbolic: 1 [ 0:10] [ 0:10] error found: yes [ 0:10] error trace: | [ 0:10] ASSUME (not (= (bvadd var_1 #x00000001) #x00000000)) [ 0:10] FAULT: v.O0.cpp:23: int main(): assertion 'x == 0' failed [ 0:10] [0] FATAL: assertion failure in userspace [ 0:10] [ 0:10] active stack: [ 0:11] - symbol: void __dios::FaultBase::handler<__dios::Context>(_VM_Fault, _VM_Frame*, void (*)()) [ 0:11] location: /dios/sys/fault.hpp:118 [ 0:11] - symbol: __dios_fault [ 0:11] location: /dios/arch/divm/fault.c:12 [ 0:11] - symbol: lart.__assert_fail [ 0:11] location: /dios/libc/_PDCLIB/assert.c:24 [ 0:11] - symbol: main [ 0:11] location: v.O0.cpp:23 [ 0:11] - symbol: __dios_start [ 0:11] location: /dios/libc/sys/start.cpp:94 [ 0:11] + divine sim --batch --skip-init --load-report verify.out [ 0:11] [ 0:21] ^ —————. —.— . . —.— . . .————— . . [ 0:21] ——— | | | | | | |\ | | | | [ 0:21] —(o)— | | | | | | | \ | |———— '————| [ 0:21] ——————— | | | \ / | | \| | | [ 0:21] ————————— —————' —'— ' —'— ' ' '————— ' [ 0:21] [ 0:21] Welcome to 'divine sim', an interactive debugger. Type 'help' to get started. [ 0:21] traced states: [ 0:22] ▶ state #1 [new] -- active threads: [0:0] -- [ 0:22] T: FAULT: v.O0.cpp:23: int main(): assertion 'x == 0' failed [ 0:22] # executing void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118 [ 0:22] # NOTE: $frame in __dios_fault [ 0:22] > backtrace [ 0:22] void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118 [ 0:22] __dios_fault at /dios/arch/divm/fault.c:12 [ 0:22] lart.__assert_fail at /dios/libc/_PDCLIB/assert.c:24 [ 0:22] main at v.O0.cpp:23 [ 0:22] __dios_start at /dios/libc/sys/start.cpp:94 [ 0:22] # executing void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118 [ 0:22] # NOTE: $frame in __dios_fault