TIMEOUT

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

Strict Trs:
  { g(A()) -> A()
  , g(B()) -> A()
  , g(B()) -> B()
  , g(C()) -> A()
  , g(C()) -> B()
  , g(C()) -> C()
  , foldf(x, nil()) -> x
  , foldf(x, cons(y, z)) -> f(foldf(x, z), y)
  , f(t, x) -> f'(t, g(x))
  , f'(triple(a, b, c), A()) ->
    f''(foldf(triple(cons(A(), a), nil(), c), b))
  , f'(triple(a, b, c), B()) -> f(triple(a, b, c), A())
  , f'(triple(a, b, c), C()) -> triple(a, b, cons(C(), c))
  , f''(triple(a, b, c)) -> foldf(triple(a, b, nil()), c) }
Obligation:
  innermost runtime complexity
Answer:
  TIMEOUT

Computation stopped due to timeout after 60.0 seconds.

Arrrr..