MAYBE

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

Strict Trs:
  { 2nd(cons1(X, cons(Y, Z))) -> Y
  , 2nd(cons(X, X1)) -> 2nd(cons1(X, activate(X1)))
  , activate(X) -> X
  , activate(n__from(X)) -> from(X)
  , from(X) -> cons(X, n__from(s(X)))
  , from(X) -> n__from(X) }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

The input cannot be shown compatible

Arrrr..