MAYBE

'Pop* (timeout of 60.0 seconds)'
--------------------------------
Answer:           MAYBE
Input Problem:    innermost runtime-complexity with respect to
  Rules:
    {  from(X) -> cons(X, from(s(X)))
     , after(0(), XS) -> XS
     , after(s(N), cons(X, XS)) -> after(N, XS)}

Proof Output:    
  The input cannot be shown compatible
The following warning(s) occured:

 Warning when parsing problem:
   Unsupported strategy 'OUTERMOST'