MAYBE

'Pop* with parameter subtitution (timeout of 60.0 seconds)'
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Answer:           MAYBE
Input Problem:    innermost relative runtime-complexity with respect to
  Strict Rules: {b(a(x)) -> a(b(x))}
  Weak Rules:
    {  a(x) -> a(a(x))
     , b(x) -> b(b(x))}

Proof Output:    
  The input cannot be shown compatible