[ 0:00] --symbolic --sequential [ 0:00] compiling /home/xrockai/src/divine/nightly/test/svcomp/recursion/Addition02_false.c [ 0:01] /home/xrockai/src/divine/nightly/test/svcomp/recursion/Addition02_false.c:25:1: warning: control may reach end of non-void function [ 0:01] } [ 0:01] ^ [ 0:01] 1 warning generated. [ 0:01] states per second: 7.70416 [ 0:29] state count: 10 [ 0:29] mips: 0.04 [ 0:29] symbolic: 1 [ 0:31] [ 0:31] error found: yes [ 0:31] error trace: | [ 0:31] ASSUME (not (bvslt var_0 #x00000000)) [ 0:31] ASSUME (not (bvsgt var_0 #x3fffffff)) [ 0:31] ASSUME (not (bvslt var_1 #x00000000)) [ 0:31] ASSUME (not (bvsgt var_1 #x3fffffff)) [ 0:31] ASSUME (not (= var_1 #x00000000)) [ 0:31] ASSUME (bvsgt var_1 #x00000000) [ 0:31] ASSUME (= (bvsub var_1 #x00000001) #x00000000) [ 0:31] ASSUME (not (= (bvadd var_0 #x00000001) (bvsub var_0 var_1))) [ 0:31] (0) FAULT: verifier error called [ 0:31] [0] FATAL: dios assertion violation in userspace [ 0:31] [ 0:31] active stack: [ 0:31] - symbol: void __dios::Fault<__dios::Scheduler<__dios::MachineParams<__dios::MonitorManager<__dios::BaseContext> > > >::handler<__dios::fs::VFS<__dios::ProcessManager<__dios::Fault<__dios::Scheduler<__dios::MachineParams<__dios::MonitorManager<__dios::BaseContext> > > > > > >(_VM_Fault, _VM_Frame*, void (*)()) [ 0:31] location: /dios/include/dios/sys/fault.hpp:193 [ 0:31] - symbol: __dios_fault [ 0:31] location: /home/xrockai/src/divine/nightly/dios/libc/sys/fault.c:12 [ 0:31] - symbol: __VERIFIER_error [ 0:31] location: /home/xrockai/src/divine/nightly/dios/libc/svcomp/svcomp-error.cpp:5 [ 0:31] - symbol: main [ 0:31] location: /home/xrockai/src/divine/nightly/test/svcomp/recursion/Addition02_false.c:45 [ 0:31] - symbol: _start [ 0:31] location: /dios/src/libc/sys/start.cpp:82 [ 0:31] a report was written to verify.out [ 0:31] [ 0:54] ^ —————. —.— . . —.— . . .————— . . [ 0:54] ——— | | | | | | |\ | | | | [ 0:54] —(o)— | | | | | | | \ | |———— '————| [ 0:54] ——————— | | | \ / | | \| | | [ 0:54] ————————— —————' —'— ' —'— ' ' '————— ' [ 0:54] [ 0:54] Welcome to 'divine sim', an interactive debugger. Type 'help' to get started. [ 0:54] traced states: #1 #2 #3 [ 0:55] # active threads: [0:0] [ 0:55] T: (0) FAULT: verifier error called [ 0:55] T: [0] FATAL: dios assertion violation in userspace [ 0:55] # executing void {Fault}::handler<{Context} >(_VM_Fault, _VM_Frame*, void (*)()) at /dios/include/dios/sys/fault.hpp:193 [ 0:55] # NOTE: $frame in __dios_fault [ 0:55] > backtrace [ 0:55] void {Fault}::handler<{Context} >(_VM_Fault, _VM_Frame*, void (*)()) at /dios/include/dios/sys/fault.hpp:193 [ 0:55] __dios_fault at /home/xrockai/src/divine/nightly/dios/libc/sys/fault.c:12 [ 0:55] __VERIFIER_error at /home/xrockai/src/divine/nightly/dios/libc/svcomp/svcomp-error.cpp:5 [ 0:55] main at /home/xrockai/src/divine/nightly/test/svcomp/recursion/Addition02_false.c:45 [ 0:55] _start at /dios/src/libc/sys/start.cpp:82 [ 0:55] # executing void {Fault}::handler<{Context} >(_VM_Fault, _VM_Frame*, void (*)()) at /dios/include/dios/sys/fault.hpp:193 [ 0:55] # NOTE: $frame in __dios_fault