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:
    {  lt(0(), s(x)) -> true()
     , lt(x, 0()) -> false()
     , lt(s(x), s(y)) -> lt(x, y)
     , minus(x, y) -> help(lt(y, x), x, y)
     , help(true(), x, y) -> s(minus(x, s(y)))
     , help(false(), x, y) -> 0()}

Proof Output:    
  The input cannot be shown compatible