extern int __VERIFIER_nondet_int(void); int test_fun(int x, int y) { while ((x > 0) && (y > 0)) { if (x > y) { while (x > 0) { x = x - 1; } } else { while (y > 0) { y = y - 1; } } } return x + y; } int main() { return test_fun(__VERIFIER_nondet_int(), __VERIFIER_nondet_int()); }