MAYBE

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

Proof Output:    
  The input cannot be shown compatible