original.name="While_Invalid_14" ====== >>> main.whiley type nat is (int x) where x > 0 function f(int v) -> (int r) ensures r >= 0: // int i = 0 while i < 100 where i >= 0: i = i - 1 if i == v: break break i = i + 2 // return i --- E504 main.whiley 11,12:16