MAYBE

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

Strict Trs:
  { a(x1) -> x1
  , a(b(b(x1))) -> b(b(b(c(x1))))
  , c(b(x1)) -> a(a(x1)) }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

The input cannot be shown compatible

Arrrr..