[ 0:00] compiling /home/xrockai/src/divine/nightly/test/svcomp/memsafety/test-0158_true-valid-memsafety.c [ 0:00] compiling /dios/lib/config/seqklee.bc [ 0:00] setting up pass: functionmeta, options = [ 0:01] setting up pass: fuse-ctors, options = [ 0:01] KLEE: output directory is "/var/obj/divine-nightly/semidbg/test/__test_work_dir.0/_klee_out" [ 0:03] KLEE: Using Z3 solver backend [ 0:03] WARNING: this target does not support the llvm.stacksave intrinsic. [ 0:03] 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' [ 0:03] [ 0:03] 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] i:1 [ 0:06] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8. [ 0:06] about to __boot:0 [ 0:06] about to run the scheduler:0 [ 0:06] KLEE: WARNING ONCE: calling external: __dios_tainted_init() at /dios/libc/sys/start.cpp:49 5 [ 0:06] KLEE: ERROR: /dios/libc/sys/start.cpp:87: failed external call: __dios_tainted_init [ 0:06] KLEE: NOTE: now ignoring this error at this location [ 0:06] KLEE: ERROR: EXITING ON ERROR: [ 0:06] Error: failed external call: __dios_tainted_init [ 0:06] File: /dios/libc/sys/start.cpp [ 0:06] Line: 87 [ 0:06] assembly.ll line: 33970 [ 0:06] Stack: [ 0:06] #000033970 in __dios_start (l=0, argc=1, argv=94135701574152, envp=94135701635080) at /dios/libc/sys/start.cpp:87 [ 0:06] #100009996 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163 [ 0:06] #200042235 in klee_boot (argc=2, argv=94135675083520) at /dios/arch/klee/boot.c:41 [ 0:06] [ 0:06] [ 0:06] 1 /* TAGS: c */ [ 0:06] 2 /* VERIFY_OPTS: -o nofail:malloc */ [ 0:06] 3 extern void __VERIFIER_error() __attribute__ ((__noreturn__)); [ 0:06] 4 [ 0:06] 5 #include [ 0:06] 6 [ 0:06] 7 int main() [ 0:06] 8 { [ 0:06] 9 union { [ 0:06] 10 void *p0; [ 0:06] 11 [ 0:06] 12 struct { [ 0:06] 13 char c[2]; [ 0:06] 14 void *p1; [ 0:06] 15 void *p2; [ 0:06] 16 } str; [ 0:06] 17 [ 0:06] 18 } data; [ 0:06] 19 [ 0:06] 20 // alloc 37B on heap [ 0:06] 21 data.p0 = malloc(37U); [ 0:06] 22 [ 0:06] 23 // this should be fine [ 0:06] 24 data.str.p2 = &data; [ 0:06] 25 [ 0:06] 26 // valid free() [ 0:06] 27 free(data.p0); [ 0:06] 28 [ 0:06] 29 return 0; [ 0:06] 30 } [ 0:06] # no errors were expected but one was found anyway