MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { minsort(Nil()) -> Nil() , minsort(Cons(x, xs)) -> appmin(x, xs, Cons(x, xs)) , appmin(min, Nil(), xs) -> Cons(min, minsort(remove(min, xs))) , appmin(min, Cons(x, xs), xs') -> appmin[Ite][True][Ite](<(x, min), min, Cons(x, xs), xs') , remove(x, Nil()) -> Nil() , remove(x', Cons(x, xs)) -> remove[Ite][True][Ite](!EQ(x', x), x', Cons(x, xs)) , notEmpty(Nil()) -> False() , notEmpty(Cons(x, xs)) -> True() , goal(xs) -> minsort(xs) } Weak Trs: { remove[Ite][True][Ite](True(), x', Cons(x, xs)) -> xs , remove[Ite][True][Ite](False(), x', Cons(x, xs)) -> Cons(x, remove(x', xs)) , !EQ(S(x), S(y)) -> !EQ(x, y) , !EQ(S(x), 0()) -> False() , !EQ(0(), S(y)) -> False() , !EQ(0(), 0()) -> True() , <(x, 0()) -> False() , <(S(x), S(y)) -> <(x, y) , <(0(), S(y)) -> True() , appmin[Ite][True][Ite](True(), min, Cons(x, xs), xs') -> appmin(x, xs, xs') , appmin[Ite][True][Ite](False(), min, Cons(x, xs), xs') -> appmin(min, xs, xs') } Obligation: innermost runtime complexity Answer: MAYBE None of the processors succeeded. Details of failed attempt(s): ----------------------------- 1) 'empty' failed due to the following reason: Empty strict component of the problem is NOT empty. 2) 'Best' failed due to the following reason: None of the processors succeeded. Details of failed attempt(s): ----------------------------- 1) 'WithProblem (timeout of 60 seconds)' failed due to the following reason: Computation stopped due to timeout after 60.0 seconds. 2) 'Best' failed due to the following reason: None of the processors succeeded. Details of failed attempt(s): ----------------------------- 1) 'WithProblem (timeout of 30 seconds) (timeout of 60 seconds)' failed due to the following reason: Computation stopped due to timeout after 30.0 seconds. 2) 'Best' failed due to the following reason: None of the processors succeeded. Details of failed attempt(s): ----------------------------- 1) 'Polynomial Path Order (PS) (timeout of 60 seconds)' failed due to the following reason: The input cannot be shown compatible 2) 'bsearch-popstar (timeout of 60 seconds)' failed due to the following reason: The input cannot be shown compatible 3) 'Fastest (timeout of 5 seconds) (timeout of 60 seconds)' failed due to the following reason: None of the processors succeeded. Details of failed attempt(s): ----------------------------- 1) 'Bounds with minimal-enrichment and initial automaton 'match'' failed due to the following reason: match-boundness of the problem could not be verified. 2) 'Bounds with perSymbol-enrichment and initial automaton 'match'' failed due to the following reason: match-boundness of the problem could not be verified. Arrrr..