[ 0:01] compiling /home/xrockai/src/divine/nightly/test/svcomp/loops/diamond_true_2.c [ 0:01] compiling /dios/lib/config/seqklee.bc [ 0:01] 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 [ 0:09] KLEE: WARNING ONCE: calling external: __dios_tainted_init() at /dios/libc/sys/start.cpp:49 5 [ 0:09] KLEE: ERROR: /dios/libc/sys/start.cpp:87: failed external call: __dios_tainted_init [ 0:09] KLEE: NOTE: now ignoring this error at this location [ 0:09] KLEE: ERROR: EXITING ON ERROR: [ 0:09] Error: failed external call: __dios_tainted_init [ 0:09] File: /dios/libc/sys/start.cpp [ 0:09] Line: 87 [ 0:09] assembly.ll line: 34208 [ 0:09] Stack: [ 0:09] #000034208 in __dios_start (l=0, argc=1, argv=94708158829064, envp=94708158906376) at /dios/libc/sys/start.cpp:87 [ 0:09] #100010219 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163 [ 0:09] #200042558 in klee_boot (argc=2, argv=94708133747456) at /dios/arch/klee/boot.c:41 [ 0:09] [ 0:09] [ 0:09] 1 /* TAGS: c sym */ [ 0:09] 2 /* VERIFY_OPTS: --symbolic --sequential -o nofail:malloc */ [ 0:09] 3 extern void __VERIFIER_error() __attribute__ ((__noreturn__)); [ 0:09] 4 extern void __VERIFIER_assert(int); [ 0:09] 5 extern unsigned int __VERIFIER_nondet_uint(void); [ 0:09] 6 [ 0:09] 7 [ 0:09] 8 int main(void) { [ 0:09] 9 unsigned int x = 0; [ 0:09] 10 unsigned int y = __VERIFIER_nondet_uint(); [ 0:09] 11 [ 0:09] 12 while (x < 99) { [ 0:09] 13 if (y % 2 == 0) x += 2; [ 0:09] 14 else x++; [ 0:09] 15 [ 0:09] 16 if (y % 2 == 0) x += 2; [ 0:09] 17 else x -= 2; [ 0:09] 18 [ 0:09] 19 if (y % 2 == 0) x += 2; [ 0:09] 20 else x += 2; [ 0:09] 21 [ 0:09] 22 if (y % 2 == 0) x += 2; [ 0:09] 23 else x -= 2; [ 0:09] 24 [ 0:09] 25 if (y % 2 == 0) x += 2; [ 0:09] 26 else x += 2; [ 0:09] 27 [ 0:09] 28 if (y % 2 == 0) x += 2; [ 0:09] 29 else x -= 4; [ 0:09] 30 [ 0:09] 31 if (y % 2 == 0) x += 2; [ 0:09] 32 else x += 4; [ 0:09] 33 [ 0:09] 34 if (y % 2 == 0) x += 2; [ 0:09] 35 else x += 2; [ 0:09] 36 [ 0:09] 37 if (y % 2 == 0) x += 2; [ 0:09] 38 else x -= 4; [ 0:09] 39 [ 0:09] 40 if (y % 2 == 0) x += 2; [ 0:09] 41 else x -= 4; [ 0:09] 42 } [ 0:09] 43 [ 0:09] 44 __VERIFIER_assert((x % 2) == (y % 2)); [ 0:09] 45 } [ 0:09] # no errors were expected but one was found anyway