original.name="While_Valid_50"
======
>>> main.whiley
function count(int n) -> (int r)
requires n >= 0
ensures r == n || r == 2:
    //
    int i = 0
    //
    while i < n where i >= 0 && i <= n:
        if i == 2:
            break
        i = i + 1
    //
    return i

public export method test():
    assume count(0) == 0
    assume count(1) == 1
    assume count(2) == 2
    assume count(3) == 2

---