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:
    {  U11(tt(), N, X, XS) -> U12(splitAt(N, XS), X)
     , U12(pair(YS, ZS), X) -> pair(cons(X, YS), ZS)
     , afterNth(N, XS) -> snd(splitAt(N, XS))
     , and(tt(), X) -> X
     , fst(pair(X, Y)) -> X
     , head(cons(N, XS)) -> N
     , natsFrom(N) -> cons(N, natsFrom(s(N)))
     , sel(N, XS) -> head(afterNth(N, XS))
     , snd(pair(X, Y)) -> Y
     , splitAt(0(), XS) -> pair(nil(), XS)
     , splitAt(s(N), cons(X, XS)) -> U11(tt(), N, X, XS)
     , tail(cons(N, XS)) -> XS
     , take(N, XS) -> fst(splitAt(N, XS))}

Proof Output:    
  The input cannot be shown compatible