MAYBE 741.38/297.10 MAYBE 741.38/297.10 741.38/297.10 We are left with following problem, upon which TcT provides the 741.38/297.10 certificate MAYBE. 741.38/297.10 741.38/297.10 Strict Trs: 741.38/297.10 { active(natsFrom(X)) -> natsFrom(active(X)) 741.38/297.10 , active(natsFrom(N)) -> mark(cons(N, natsFrom(s(N)))) 741.38/297.10 , active(cons(X1, X2)) -> cons(active(X1), X2) 741.38/297.10 , active(s(X)) -> s(active(X)) 741.38/297.10 , active(fst(X)) -> fst(active(X)) 741.38/297.10 , active(fst(pair(XS, YS))) -> mark(XS) 741.38/297.10 , active(pair(X1, X2)) -> pair(X1, active(X2)) 741.38/297.10 , active(pair(X1, X2)) -> pair(active(X1), X2) 741.38/297.10 , active(snd(X)) -> snd(active(X)) 741.38/297.10 , active(snd(pair(XS, YS))) -> mark(YS) 741.38/297.10 , active(splitAt(X1, X2)) -> splitAt(X1, active(X2)) 741.38/297.10 , active(splitAt(X1, X2)) -> splitAt(active(X1), X2) 741.38/297.10 , active(splitAt(s(N), cons(X, XS))) -> 741.38/297.10 mark(u(splitAt(N, XS), N, X, XS)) 741.38/297.10 , active(splitAt(0(), XS)) -> mark(pair(nil(), XS)) 741.38/297.10 , active(u(X1, X2, X3, X4)) -> u(active(X1), X2, X3, X4) 741.38/297.10 , active(u(pair(YS, ZS), N, X, XS)) -> mark(pair(cons(X, YS), ZS)) 741.38/297.10 , active(head(X)) -> head(active(X)) 741.38/297.10 , active(head(cons(N, XS))) -> mark(N) 741.38/297.10 , active(tail(X)) -> tail(active(X)) 741.38/297.10 , active(tail(cons(N, XS))) -> mark(XS) 741.38/297.10 , active(sel(N, XS)) -> mark(head(afterNth(N, XS))) 741.38/297.10 , active(sel(X1, X2)) -> sel(X1, active(X2)) 741.38/297.10 , active(sel(X1, X2)) -> sel(active(X1), X2) 741.38/297.10 , active(afterNth(N, XS)) -> mark(snd(splitAt(N, XS))) 741.38/297.10 , active(afterNth(X1, X2)) -> afterNth(X1, active(X2)) 741.38/297.10 , active(afterNth(X1, X2)) -> afterNth(active(X1), X2) 741.38/297.10 , active(take(N, XS)) -> mark(fst(splitAt(N, XS))) 741.38/297.10 , active(take(X1, X2)) -> take(X1, active(X2)) 741.38/297.10 , active(take(X1, X2)) -> take(active(X1), X2) 741.38/297.10 , natsFrom(mark(X)) -> mark(natsFrom(X)) 741.38/297.10 , natsFrom(ok(X)) -> ok(natsFrom(X)) 741.38/297.10 , cons(mark(X1), X2) -> mark(cons(X1, X2)) 741.38/297.10 , cons(ok(X1), ok(X2)) -> ok(cons(X1, X2)) 741.38/297.10 , s(mark(X)) -> mark(s(X)) 741.38/297.10 , s(ok(X)) -> ok(s(X)) 741.38/297.10 , fst(mark(X)) -> mark(fst(X)) 741.38/297.10 , fst(ok(X)) -> ok(fst(X)) 741.38/297.10 , pair(X1, mark(X2)) -> mark(pair(X1, X2)) 741.38/297.10 , pair(mark(X1), X2) -> mark(pair(X1, X2)) 741.38/297.10 , pair(ok(X1), ok(X2)) -> ok(pair(X1, X2)) 741.38/297.10 , snd(mark(X)) -> mark(snd(X)) 741.38/297.10 , snd(ok(X)) -> ok(snd(X)) 741.38/297.10 , splitAt(X1, mark(X2)) -> mark(splitAt(X1, X2)) 741.38/297.10 , splitAt(mark(X1), X2) -> mark(splitAt(X1, X2)) 741.38/297.10 , splitAt(ok(X1), ok(X2)) -> ok(splitAt(X1, X2)) 741.38/297.10 , u(mark(X1), X2, X3, X4) -> mark(u(X1, X2, X3, X4)) 741.38/297.10 , u(ok(X1), ok(X2), ok(X3), ok(X4)) -> ok(u(X1, X2, X3, X4)) 741.38/297.10 , head(mark(X)) -> mark(head(X)) 741.38/297.10 , head(ok(X)) -> ok(head(X)) 741.38/297.10 , tail(mark(X)) -> mark(tail(X)) 741.38/297.10 , tail(ok(X)) -> ok(tail(X)) 741.38/297.10 , sel(X1, mark(X2)) -> mark(sel(X1, X2)) 741.38/297.10 , sel(mark(X1), X2) -> mark(sel(X1, X2)) 741.38/297.10 , sel(ok(X1), ok(X2)) -> ok(sel(X1, X2)) 741.38/297.10 , afterNth(X1, mark(X2)) -> mark(afterNth(X1, X2)) 741.38/297.10 , afterNth(mark(X1), X2) -> mark(afterNth(X1, X2)) 741.38/297.10 , afterNth(ok(X1), ok(X2)) -> ok(afterNth(X1, X2)) 741.38/297.10 , take(X1, mark(X2)) -> mark(take(X1, X2)) 741.38/297.10 , take(mark(X1), X2) -> mark(take(X1, X2)) 741.38/297.10 , take(ok(X1), ok(X2)) -> ok(take(X1, X2)) 741.38/297.10 , proper(natsFrom(X)) -> natsFrom(proper(X)) 741.38/297.10 , proper(cons(X1, X2)) -> cons(proper(X1), proper(X2)) 741.38/297.10 , proper(s(X)) -> s(proper(X)) 741.38/297.10 , proper(fst(X)) -> fst(proper(X)) 741.38/297.10 , proper(pair(X1, X2)) -> pair(proper(X1), proper(X2)) 741.38/297.10 , proper(snd(X)) -> snd(proper(X)) 741.38/297.10 , proper(splitAt(X1, X2)) -> splitAt(proper(X1), proper(X2)) 741.38/297.10 , proper(0()) -> ok(0()) 741.38/297.10 , proper(nil()) -> ok(nil()) 741.38/297.10 , proper(u(X1, X2, X3, X4)) -> 741.38/297.10 u(proper(X1), proper(X2), proper(X3), proper(X4)) 741.38/297.10 , proper(head(X)) -> head(proper(X)) 741.38/297.10 , proper(tail(X)) -> tail(proper(X)) 741.38/297.10 , proper(sel(X1, X2)) -> sel(proper(X1), proper(X2)) 741.38/297.10 , proper(afterNth(X1, X2)) -> afterNth(proper(X1), proper(X2)) 741.38/297.10 , proper(take(X1, X2)) -> take(proper(X1), proper(X2)) 741.38/297.10 , top(mark(X)) -> top(proper(X)) 741.38/297.10 , top(ok(X)) -> top(active(X)) } 741.38/297.10 Obligation: 741.38/297.10 innermost runtime complexity 741.38/297.10 Answer: 741.38/297.10 MAYBE 741.38/297.10 741.38/297.10 None of the processors succeeded. 741.38/297.10 741.38/297.10 Details of failed attempt(s): 741.38/297.10 ----------------------------- 741.38/297.10 1) 'empty' failed due to the following reason: 741.38/297.10 741.38/297.10 Empty strict component of the problem is NOT empty. 741.38/297.10 741.38/297.10 2) 'Best' failed due to the following reason: 741.38/297.10 741.38/297.10 None of the processors succeeded. 741.38/297.10 741.38/297.10 Details of failed attempt(s): 741.38/297.10 ----------------------------- 741.38/297.10 1) 'With Problem ... (timeout of 297 seconds)' failed due to the 741.38/297.10 following reason: 741.38/297.10 741.38/297.10 Computation stopped due to timeout after 297.0 seconds. 741.38/297.10 741.38/297.10 2) 'Best' failed due to the following reason: 741.38/297.10 741.38/297.10 None of the processors succeeded. 741.38/297.10 741.38/297.10 Details of failed attempt(s): 741.38/297.10 ----------------------------- 741.38/297.10 1) 'With Problem ... (timeout of 148 seconds) (timeout of 297 741.38/297.10 seconds)' failed due to the following reason: 741.38/297.10 741.38/297.10 Computation stopped due to timeout after 148.0 seconds. 741.38/297.10 741.38/297.10 2) 'Best' failed due to the following reason: 741.38/297.10 741.38/297.10 None of the processors succeeded. 741.38/297.10 741.38/297.10 Details of failed attempt(s): 741.38/297.10 ----------------------------- 741.38/297.10 1) 'Polynomial Path Order (PS) (timeout of 297 seconds)' failed due 741.38/297.10 to the following reason: 741.38/297.10 741.38/297.10 The input cannot be shown compatible 741.38/297.10 741.38/297.10 2) 'bsearch-popstar (timeout of 297 seconds)' failed due to the 741.38/297.10 following reason: 741.38/297.10 741.38/297.10 The input cannot be shown compatible 741.38/297.10 741.38/297.10 741.38/297.10 3) 'Fastest (timeout of 24 seconds) (timeout of 297 seconds)' 741.38/297.10 failed due to the following reason: 741.38/297.10 741.38/297.10 None of the processors succeeded. 741.38/297.10 741.38/297.10 Details of failed attempt(s): 741.38/297.10 ----------------------------- 741.38/297.10 1) 'Bounds with minimal-enrichment and initial automaton 'match'' 741.38/297.10 failed due to the following reason: 741.38/297.10 741.38/297.10 match-boundness of the problem could not be verified. 741.38/297.10 741.38/297.10 2) 'Bounds with perSymbol-enrichment and initial automaton 'match'' 741.38/297.10 failed due to the following reason: 741.38/297.10 741.38/297.10 match-boundness of the problem could not be verified. 741.38/297.10 741.38/297.10 741.38/297.10 741.38/297.10 741.38/297.10 741.38/297.10 Arrrr.. 741.38/297.15 EOF