typedef enum {false,true} bool; extern int __VERIFIER_nondet_int(void); int main() { int x; int y; int z; x = __VERIFIER_nondet_int(); y = __VERIFIER_nondet_int(); z = __VERIFIER_nondet_int(); while (x > z && y > z) { x = x-1; y = y-1; } return 0; }