MAYBE

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

Strict Trs:
  { from_2(x) -> cons_0(x, from_1(s_0(x)))
  , from_1(x) -> cons_1(x, from_1(s_0(x)))
  , from_3(x) -> cons_0(x, from_2(s_0(x)))
  , from_4(x) -> cons_0(x, from_2(s_0(x)))
  , cons_1(s_0(s_0(x)), xs) -> nil_0() }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

The input cannot be shown compatible

Arrrr..