MAYBE

We are left with following problem, upon which TcT provides the
certificate MAYBE.

Strict Trs:
  { min(x, 0()) -> 0()
  , min(0(), y) -> 0()
  , min(s(x), s(y)) -> s(min(x, y))
  , max(x, 0()) -> x
  , max(0(), y) -> y
  , max(s(x), s(y)) -> s(max(x, y))
  , -(x, 0()) -> x
  , -(s(x), s(y)) -> -(x, y)
  , gcd(0(), s(y)) -> s(y)
  , gcd(s(x), 0()) -> s(x)
  , gcd(s(x), s(y)) ->
    gcd(-(s(max(x, y)), s(min(x, y))), s(min(x, y))) }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

The input cannot be shown compatible

Arrrr..