[ 0:00] compiling /home/xrockai/src/divine/nightly/test/lang-c/ptr-shift.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.12/_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] about to __boot:0 [ 0:06] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8. [ 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: 34084 [ 0:06] Stack: [ 0:06] #000034084 in __dios_start (l=0, argc=1, argv=94861642186760, envp=94861642205192) at /dios/libc/sys/start.cpp:87 [ 0:06] #100010093 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163 [ 0:06] #200042332 in klee_boot (argc=1, argv=94861629384768) at /dios/arch/klee/boot.c:41 [ 0:06] [ 0:06] [ 0:06] 1 /* TAGS: min c */ [ 0:06] 2 #include [ 0:06] 3 #include [ 0:06] 4 #include [ 0:06] 5 [ 0:06] 6 /* NB. This is not actually valid C, though it will dtrt on most compilers. */ [ 0:06] 7 [ 0:06] 8 int main() [ 0:06] 9 { [ 0:06] 10 int foo[4]; [ 0:06] 11 foo[0] = 0; [ 0:06] 12 [ 0:06] 13 uintptr_t a = (uintptr_t) foo; [ 0:06] 14 uintptr_t lowbits = a & 0xffffffff; [ 0:06] 15 a >>= 32; [ 0:06] 16 uintptr_t b = a; [ 0:06] 17 b <<= 32; [ 0:06] 18 b |= lowbits; [ 0:06] 19 int *bar = (void *) b; [ 0:06] 20 bar[0] ++; [ 0:06] 21 assert( foo[0] == 1 ); [ 0:06] 22 [ 0:06] 23 uint32_t c = a; [ 0:06] 24 uintptr_t d = c; [ 0:06] 25 d <<= 32; [ 0:06] 26 d |= lowbits; [ 0:06] 27 [ 0:06] 28 int *baz = (int *) d; [ 0:06] 29 baz[0] ++; [ 0:06] 30 [ 0:06] 31 assert( foo[0] == 2 ); [ 0:06] 32 } [ 0:06] # no errors were expected but one was found anyway