MAYBE

'Pop* with parameter subtitution (timeout of 60.0 seconds)'
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Answer:           MAYBE
Input Problem:    innermost runtime-complexity with respect to
  Rules:
    {  f(n__b(), X, n__c()) -> f(X, c(), X)
     , c() -> b()
     , b() -> n__b()
     , c() -> n__c()
     , activate(n__b()) -> b()
     , activate(n__c()) -> c()
     , activate(X) -> X}

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

 Warning when parsing problem:
   Unsupported strategy 'OUTERMOST'