MAYBE

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

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

The input cannot be shown compatible

Arrrr..