[ 0:00] compiling /home/xrockai/src/divine/nightly/test/svcomp/loops/diamond_true_1.c [ 0:00] compiling /dios/lib/config/seqklee.bc [ 0:00] setting up pass: functionmeta, options = [ 0:02] setting up pass: fuse-ctors, options = [ 0:02] KLEE: output directory is "/var/obj/divine-nightly/semidbg/test/__test_work_dir.23/_klee_out" [ 0:05] KLEE: Using Z3 solver backend [ 0:05] WARNING: this target does not support the llvm.stacksave intrinsic. [ 0:05] warning: Linking two modules of different target triples: klee_div_zero_check.bc' is 'x86_64-unknown-linux-gnu' whereas 'klee.bc' is 'x86_64-unknown-none-elf' [ 0:05] [ 0:05] KLEE: WARNING: undefined reference to function: __dios_tainted_init [ 0:08] KLEE: WARNING: undefined reference to function: klee_free [ 0:08] KLEE: WARNING: undefined reference to function: klee_malloc [ 0:08] i:1 [ 0:08] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8. [ 0:08] about to __boot:0 [ 0:08] about to run the scheduler:0 [ 0:08] KLEE: WARNING ONCE: calling external: __dios_tainted_init() at /dios/libc/sys/start.cpp:49 5 [ 0:08] KLEE: ERROR: /dios/libc/sys/start.cpp:87: failed external call: __dios_tainted_init [ 0:08] KLEE: NOTE: now ignoring this error at this location [ 0:08] KLEE: ERROR: EXITING ON ERROR: [ 0:08] Error: failed external call: __dios_tainted_init [ 0:08] File: /dios/libc/sys/start.cpp [ 0:08] Line: 87 [ 0:08] assembly.ll line: 34046 [ 0:08] Stack: [ 0:08] #000034046 in __dios_start (l=0, argc=1, argv=94460000555528, envp=94460000632840) at /dios/libc/sys/start.cpp:87 [ 0:08] #100010057 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163 [ 0:08] #200042396 in klee_boot (argc=2, argv=94459975547648) at /dios/arch/klee/boot.c:41 [ 0:08] [ 0:08] [ 0:08] 1 /* TAGS: c sym */ [ 0:08] 2 /* VERIFY_OPTS: --symbolic --sequential -o nofail:malloc */ [ 0:08] 3 extern void __VERIFIER_error() __attribute__ ((__noreturn__)); [ 0:08] 4 extern void __VERIFIER_assert(int); [ 0:08] 5 extern unsigned int __VERIFIER_nondet_uint(void); [ 0:08] 6 [ 0:08] 7 [ 0:08] 8 int main(void) { [ 0:08] 9 unsigned int x = 0; [ 0:08] 10 unsigned int y = __VERIFIER_nondet_uint(); [ 0:08] 11 [ 0:08] 12 while (x < 99) { [ 0:08] 13 if (y % 2 == 0) { [ 0:08] 14 x += 2; [ 0:08] 15 } else { [ 0:08] 16 x++; [ 0:08] 17 } [ 0:08] 18 } [ 0:08] 19 [ 0:08] 20 __VERIFIER_assert((x % 2) == (y % 2)); [ 0:08] 21 } [ 0:08] # no errors were expected but one was found anyway