MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { f(0()) -> true() , f(1()) -> false() , f(s(x)) -> f(x) , if(true(), s(x), s(y)) -> s(x) , if(false(), s(x), s(y)) -> s(y) , g(x, c(y)) -> g(x, if(f(x), c(g(s(x), y)), c(y))) , g(x, c(y)) -> c(g(x, y)) } Obligation: runtime complexity Answer: MAYBE None of the processors succeeded. Details of failed attempt(s): ----------------------------- 1) '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) 'bsearch-popstar (timeout of 60 seconds)' failed due to the following reason: The processor is inapplicable, reason: Processor only applicable for innermost runtime complexity analysis 2) 'Polynomial Path Order (PS) (timeout of 60 seconds)' failed due to the following reason: The processor is inapplicable, reason: Processor only applicable for innermost runtime complexity analysis 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 perSymbol-enrichment and initial automaton 'match'' failed due to the following reason: match-boundness of the problem could not be verified. 2) 'Bounds with minimal-enrichment and initial automaton 'match'' failed due to the following reason: match-boundness of the problem could not be verified. 2) 'Innermost Weak Dependency Pairs (timeout of 60 seconds)' failed due to the following reason: We add the following weak dependency pairs: Strict DPs: { f^#(0()) -> c_1() , f^#(1()) -> c_2() , f^#(s(x)) -> c_3(f^#(x)) , if^#(true(), s(x), s(y)) -> c_4(x) , if^#(false(), s(x), s(y)) -> c_5(y) , g^#(x, c(y)) -> c_6(g^#(x, if(f(x), c(g(s(x), y)), c(y)))) , g^#(x, c(y)) -> c_7(g^#(x, y)) } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { f^#(0()) -> c_1() , f^#(1()) -> c_2() , f^#(s(x)) -> c_3(f^#(x)) , if^#(true(), s(x), s(y)) -> c_4(x) , if^#(false(), s(x), s(y)) -> c_5(y) , g^#(x, c(y)) -> c_6(g^#(x, if(f(x), c(g(s(x), y)), c(y)))) , g^#(x, c(y)) -> c_7(g^#(x, y)) } Strict Trs: { f(0()) -> true() , f(1()) -> false() , f(s(x)) -> f(x) , if(true(), s(x), s(y)) -> s(x) , if(false(), s(x), s(y)) -> s(y) , g(x, c(y)) -> g(x, if(f(x), c(g(s(x), y)), c(y))) , g(x, c(y)) -> c(g(x, y)) } Obligation: runtime complexity Answer: MAYBE We estimate the number of application of {1,2,6} by applications of Pre({1,2,6}) = {3,4,5,7}. Here rules are labeled as follows: DPs: { 1: f^#(0()) -> c_1() , 2: f^#(1()) -> c_2() , 3: f^#(s(x)) -> c_3(f^#(x)) , 4: if^#(true(), s(x), s(y)) -> c_4(x) , 5: if^#(false(), s(x), s(y)) -> c_5(y) , 6: g^#(x, c(y)) -> c_6(g^#(x, if(f(x), c(g(s(x), y)), c(y)))) , 7: g^#(x, c(y)) -> c_7(g^#(x, y)) } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { f^#(s(x)) -> c_3(f^#(x)) , if^#(true(), s(x), s(y)) -> c_4(x) , if^#(false(), s(x), s(y)) -> c_5(y) , g^#(x, c(y)) -> c_7(g^#(x, y)) } Strict Trs: { f(0()) -> true() , f(1()) -> false() , f(s(x)) -> f(x) , if(true(), s(x), s(y)) -> s(x) , if(false(), s(x), s(y)) -> s(y) , g(x, c(y)) -> g(x, if(f(x), c(g(s(x), y)), c(y))) , g(x, c(y)) -> c(g(x, y)) } Weak DPs: { f^#(0()) -> c_1() , f^#(1()) -> c_2() , g^#(x, c(y)) -> c_6(g^#(x, if(f(x), c(g(s(x), y)), c(y)))) } Obligation: runtime complexity Answer: MAYBE Empty strict component of the problem is NOT empty. Arrrr..