[ 0:01] compiling /var/obj/divine-nightly/semidbg/test/_expand/svcomp/recursion/MultCommutative_true.pkg.c/small.5.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.2/_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
[ 0:07] KLEE: WARNING: undefined reference to function: klee_free
[ 0:07] KLEE: WARNING: undefined reference to function: klee_malloc
[ 0:07] 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: 34127
[ 0:07] Stack: 
[ 0:07] 	#000034127 in __dios_start (l=0, argc=1, argv=94289826578440, envp=94289826596872) at /dios/libc/sys/start.cpp:87
[ 0:07] 	#100010146 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163
[ 0:07] 	#200042477 in klee_boot (argc=1, argv=94289813727296) at /dios/arch/klee/boot.c:41
[ 0:07] 
[ 0:07] 
[ 0:07]      1	/* VERIFY_OPTS:  --symbolic --sequential */
[ 0:07]      2	/* TAGS:  sym c */
[ 0:07]      3	/* CC_OPTS: -DNUM=5 */
[ 0:07]      4	
[ 0:07]      5	extern void __VERIFIER_error() __attribute__ ((__noreturn__));
[ 0:07]      6	
[ 0:07]      7	/*
[ 0:07]      8	 * Recursive implementation multiplication by repeated addition
[ 0:07]      9	 * Check that this multiplication is commutative
[ 0:07]     10	 *
[ 0:07]     11	 * Author: Jan Leike
[ 0:07]     12	 * Date: 2013-07-17
[ 0:07]     13	 *
[ 0:07]     14	 */
[ 0:07]     15	
[ 0:07]     16	// V: small.5 CC_OPT: -DNUM=5
[ 0:07]     17	// V: big.100 CC_OPT: -DNUM=100 TAGS: big
[ 0:07]     18	// V: big.1000 CC_OPT: -DNUM=1000 TAGS: big
[ 0:07]     19	// V: big.46340 CC_OPT: -DNUM=46340 TAGS: big
[ 0:07]     20	
[ 0:07]     21	extern int __VERIFIER_nondet_int(void);
[ 0:07]     22	
[ 0:07]     23	// Multiplies two integers n and m
[ 0:07]     24	int mult(int n, int m) {
[ 0:07]     25	    if (m < 0) {
[ 0:07]     26	        return mult(n, -m);
[ 0:07]     27	    }
[ 0:07]     28	    if (m == 0) {
[ 0:07]     29	        return 0;
[ 0:07]     30	    }
[ 0:07]     31	    return n + mult(n, m - 1);
[ 0:07]     32	}
[ 0:07]     33	
[ 0:07]     34	int main() {
[ 0:07]     35	    int m = __VERIFIER_nondet_int();
[ 0:07]     36	    if (m < 0 || m > NUM) {
[ 0:07]     37	        return 0;
[ 0:07]     38	    }
[ 0:07]     39	    int n = __VERIFIER_nondet_int();
[ 0:07]     40	    if (n < 0 || n > NUM) {
[ 0:07]     41	        return 0;
[ 0:07]     42	    }
[ 0:07]     43	    int res1 = mult(m, n);
[ 0:07]     44	    int res2 = mult(n, m);
[ 0:07]     45	    if (res1 != res2 && m > 0 && n > 0) {
[ 0:07]     46	        ERROR: __VERIFIER_error();
[ 0:07]     47	    } else {
[ 0:07]     48	        return 0;
[ 0:07]     49	    }
[ 0:07]     50	}
[ 0:07] # no errors were expected but one was found anyway