[ 0:01] compiling /home/xrockai/src/divine/nightly/test/svcomp/recursion/sum_20x0_false.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.11/_klee_out" [ 0:04] KLEE: Using Z3 solver backend [ 0:04] WARNING: this target does not support the llvm.stacksave intrinsic. [ 0:04] 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' [ 0:04] [ 0:04] KLEE: WARNING: undefined reference to function: __dios_tainted_init [ 0:06] KLEE: WARNING: undefined reference to function: klee_free [ 0:06] KLEE: WARNING: undefined reference to function: klee_malloc [ 0:06] about to __boot:0 [ 0:07] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8. [ 0:07] about to run the scheduler:0 [ 0:07] KLEE: WARNING ONCE: calling external: __dios_tainted_init() at /dios/libc/sys/start.cpp:49 5 [ 0:07] KLEE: ERROR: /dios/libc/sys/start.cpp:87: failed external call: __dios_tainted_init [ 0:07] KLEE: NOTE: now ignoring this error at this location [ 0:07] KLEE: ERROR: EXITING ON ERROR: [ 0:07] Error: failed external call: __dios_tainted_init [ 0:07] File: /dios/libc/sys/start.cpp [ 0:07] Line: 87 [ 0:07] assembly.ll line: 34035 [ 0:07] Stack: [ 0:07] #000034035 in __dios_start (l=0, argc=1, argv=94205289242632, envp=94205289261064) at /dios/libc/sys/start.cpp:87 [ 0:07] #100010054 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163 [ 0:07] #200042300 in klee_boot (argc=1, argv=94205276448832) at /dios/arch/klee/boot.c:41 [ 0:07] [ 0:07] [ 0:07] 1 /* TAGS: error c sym */ [ 0:07] 2 /* VERIFY_OPTS: --symbolic */ [ 0:07] 3 extern void __VERIFIER_error(void); [ 0:07] 4 [ 0:07] 5 int sum(int n, int m) { [ 0:07] 6 if (n <= 0) { [ 0:07] 7 return m + n; [ 0:07] 8 } else { [ 0:07] 9 return sum(n - 1, m + 1); [ 0:07] 10 } [ 0:07] 11 } [ 0:07] 12 [ 0:07] 13 int main(void) { [ 0:07] 14 int a = 20; [ 0:07] 15 int b = 0; [ 0:07] 16 int result = sum(a, b); [ 0:07] 17 if (result == a + b) { [ 0:07] 18 ERROR: __VERIFIER_error(); /* ERROR */ [ 0:07] 19 } [ 0:07] 20 } [ 0:07] # expected error to be found at /home/xrockai/src/divine/nightly/test/svcomp/recursion/sum_20x0_false.c:18, but it was not