original.name="Assert_Valid_7"
======
>>> main.whiley
function f(int[] xs) -> (int r)
requires xs[0] == 0:
//
int n = 0
do:
assert (n == 0) || (|xs| > 0)
xs[0] = 0
n = n + 1
while n < 10 where n >= 0 && xs[0] == 0
//
return n
public export method test():
int[] xs = [0,0,0]
assume f(xs) == 10
---