extern void abort(void);
extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
void reach_error() { __assert_fail("0", "trex01-1.c", 3, "reach_error"); }

void __VERIFIER_assert(int cond) {
  if (!(cond)) {
    ERROR: {reach_error();abort();}
  }
  return;
}
_Bool __VERIFIER_nondet_bool();
int __VERIFIER_nondet_int();

void f(int d) {
  int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1;
  if (!(k <= 1073741823))
    return;
  L1:
  while (z < k) { z = 2 * z; }
  __VERIFIER_assert(z>=2);
  L2:
  while (x > 0 && y > 0) {
    _Bool c = __VERIFIER_nondet_bool();
    if (c) {
      P1:
      x = x - d;
      y = __VERIFIER_nondet_bool();
      z = z - 1;
    } else {
      y = y - d;
    }
  }
}

int main() {
  _Bool c = __VERIFIER_nondet_bool();
  if (c) {
    f(1);
  } else {
    f(2);
  }

  return 0;
}