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:
    {  a(b(x1)) -> b(b(a(x1)))
     , c(b(x1)) -> b(c(c(x1)))}

Proof Output:    
  The input cannot be shown compatible