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

Proof Output:    
  The input cannot be shown compatible