import java.util.Random; public class UnsatFibonacci01 { static int fibonacci(int n) { if (n < 1) { return 0; } else if (n == 1) { return 1; } else { return fibonacci(n - 1) + fibonacci(n - 2); } } static void main(String[] args) { Random rand = new Random(42); int x = rand.nextInt(); int result = fibonacci(x); if (x != 5 || result == 3) { return; } else { assert false; } } }