MAYBE

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

Strict Trs:
  { fac(s(x)) -> *(fac(p(s(x))), s(x))
  , p(s(s(x))) -> s(p(s(x)))
  , p(s(0())) -> 0() }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

The input cannot be shown compatible

Arrrr..