extern int __VERIFIER_nondet_int(void);

int foo(int x,int y,int z){
while (x>0 && y>0 && z>0) {
		if (__VERIFIER_nondet_int() != 0) {
			x = x - 1;
		} else {if (__VERIFIER_nondet_int() != 0) {
			y = y - 1;
			z = __VERIFIER_nondet_int();
		} else {
			z = z - 1;
			x = __VERIFIER_nondet_int();
		}}
	}
return 0;
}