[ 0:00]   | load /home/xrockai/src/divine/nightly/test/demo/deadlock.c deadlock.c
[ 0:00]   | load /home/xrockai/src/divine/nightly/test/demo/demo.h demo.h
[ 0:00]   | expect --result error --symbol pthread_mutex_lock
[ 0:00]   | cc -o testcase.bc deadlock.c
[ 0:00]   | verify --max-memory 4GiB --max-time 600 --threads 2 --report-filename verify.out --leakcheck exit testcase.bc
[ 0:00] compiling deadlock.c
[ 0:00] loading bitcode … DiOS … LART … RR … constants … done
[ 0:03] booting … done
[ 0:03] states per second: 73.3379
[ 0:06] state count: 214
[ 0:06] mips: 0.29
[ 0:06] 
[ 0:07] error found: yes
[ 0:07] error trace: |
[ 0:07]   [0] 0: locking mutex 1
[ 0:07]   [1] 1: locking mutex 2
[ 0:07]   [1] 1: locking mutex 1
[ 0:07]   [0] 0: locking mutex 2
[ 0:07]   FAULT: deadlock: circular wait on a mutex
[ 0:07]   [1] FATAL: locking error in userspace
[ 0:07] 
[ 0:07] active stack:
[ 0:07]   - symbol: void __dios::FaultBase::handler<__dios::Context>(_VM_Fault, _VM_Frame*, void (*)())
[ 0:08]     location: /dios/sys/fault.hpp:118
[ 0:08]   - symbol: __dios_fault
[ 0:08]     location: /dios/arch/divm/fault.c:12
[ 0:08]   - symbol: __dios::_mutex_lock(__dios::_InterruptMask<true>&, pthread_mutex_t*, bool)
[ 0:08]     location: /dios/libc/pthread/pthread-mutex.cpp:51
[ 0:08]   - symbol: pthread_mutex_lock
[ 0:08]     location: /dios/libc/pthread/pthread-mutex.cpp:173
[ 0:08]   - symbol: thr1
[ 0:08]     location: deadlock.c:15
[ 0:08]   - symbol: __pthread_start
[ 0:08]     location: /dios/libc/pthread/pthread-init.cpp:79
[ 0:08]   - symbol: __pthread_entry
[ 0:08]     location: /dios/libc/pthread/pthread-core.cpp:50
[ 0:08] + divine sim --batch --skip-init --load-report verify.out
[ 0:08] 
[ 0:11]            ^       —————.   —.—  .     .  —.—  .     .  .—————    .    .
[ 0:11]           ———      |     |   |   |     |   |   |\    |  |         |    |
[ 0:11]          —(o)—     |     |   |   |     |   |   |  \  |  |————     '————|
[ 0:11]         ———————    |     |   |    \   /    |   |    \|  |              |
[ 0:11]        —————————   —————'   —'—     '     —'—  '     '  '—————         '
[ 0:11] 
[ 0:11] Welcome to 'divine sim', an interactive debugger. Type 'help' to get started.
[ 0:11] traced states:
[ 0:11] trace:
[ 0:11] T: [0] 0: locking mutex 1
[ 0:11] T: [1] 1: locking mutex 2
[ 0:11] T: [1] 1: locking mutex 1
[ 0:11] T: [0] 0: locking mutex 2
[ 0:11] ▶ state   #15 [new] -- active threads: 0:0 [0:1] --
[ 0:11] T: FAULT: deadlock: circular wait on a mutex
[ 0:11] # executing void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118
[ 0:11] # NOTE: $frame in __dios_fault
[ 0:11] > backtrace
[ 0:11]   void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118
[ 0:11]   __dios_fault at /dios/arch/divm/fault.c:12
[ 0:11]   __dios::_mutex_lock(__dios::_InterruptMask<true>&, pthread_mutex_t*, bool) at /dios/libc/pthread/pthread-mutex.cpp:51
[ 0:11]   pthread_mutex_lock at /dios/libc/pthread/pthread-mutex.cpp:173
[ 0:11]   thr1 at deadlock.c:15
[ 0:11]   __pthread_start at /dios/libc/pthread/pthread-init.cpp:79
[ 0:11]   __pthread_entry at /dios/libc/pthread/pthread-core.cpp:50
[ 0:11] # executing void __dios::FaultBase::handler<{Context}>(_VM_Fault, _VM_Frame*, void (*)()) at /dios/sys/fault.hpp:118
[ 0:11] # NOTE: $frame in __dios_fault