[ 0:01] compiling /var/obj/divine-nightly/semidbg/test/_expand/svcomp/loops/half_true.pkg.c/small.10.c [ 0:01] compiling /dios/lib/config/seqklee.bc [ 0:01] setting up pass: functionmeta, options = [ 0:03] setting up pass: fuse-ctors, options = [ 0:03] KLEE: output directory is "/var/obj/divine-nightly/semidbg/test/__test_work_dir.21/_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' [ 0:06] [ 0:06] KLEE: WARNING: undefined reference to function: __dios_tainted_init [ 0:09] KLEE: WARNING: undefined reference to function: klee_free [ 0:09] KLEE: WARNING: undefined reference to function: klee_malloc [ 0:09] i:1 [ 0:09] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8. [ 0:09] about to __boot:0 [ 0:09] 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: 34095 [ 0:09] Stack: [ 0:09] #000034095 in __dios_start (l=0, argc=1, argv=94195330298376, envp=94195330383880) at /dios/libc/sys/start.cpp:87 [ 0:09] #100010114 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163 [ 0:09] #200042445 in klee_boot (argc=2, argv=94195305249536) 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 /* CC_OPTS: -DNUM=10 */ [ 0:09] 4 [ 0:09] 5 extern void __VERIFIER_error(void); [ 0:09] 6 extern void __VERIFIER_assume(int); [ 0:09] 7 void __VERIFIER_assert(int cond) { [ 0:09] 8 if (!(cond)) { [ 0:09] 9 ERROR: __VERIFIER_error(); [ 0:09] 10 } [ 0:09] 11 return; [ 0:09] 12 } [ 0:09] 13 extern int __VERIFIER_nondet_int(void); [ 0:09] 14 [ 0:09] 15 // V: small.10 CC_OPT: -DNUM=10 [ 0:09] 16 // V: small.100 CC_OPT: -DNUM=100 [ 0:09] 17 // V: big.1000 CC_OPT: -DNUM=1000 TAGS: big [ 0:09] 18 // V: big.10000 CC_OPT: -DNUM=10000 TAGS: big [ 0:09] 19 // V: big.100000 CC_OPT: -DNUM=100000 TAGS: big [ 0:09] 20 [ 0:09] 21 int main() { [ 0:09] 22 int i = 0; [ 0:09] 23 int n = 0; [ 0:09] 24 int k = __VERIFIER_nondet_int(); [ 0:09] 25 if (!(k <= NUM && k >= -NUM)) return 0; [ 0:09] 26 for(i = 0; i < 2*k; i++) { [ 0:09] 27 if (i % 2 == 0) { [ 0:09] 28 n ++; [ 0:09] 29 } [ 0:09] 30 } [ 0:09] 31 __VERIFIER_assert(k < 0 || n == k); [ 0:09] 32 return 0; [ 0:09] 33 } [ 0:09] # no errors were expected but one was found anyway