MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { p(s(x)) -> x , fact(s(x)) -> *(s(x), fact(p(s(x)))) , fact(0()) -> s(0()) , *(s(x), y) -> +(*(x, y), y) , *(0(), y) -> 0() , +(x, s(y)) -> s(+(x, y)) , +(x, 0()) -> x } Obligation: runtime complexity Answer: MAYBE 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) '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. 3) 'Innermost Weak Dependency Pairs (timeout of 60 seconds)' failed due to the following reason: We add the following weak dependency pairs: Strict DPs: { p^#(s(x)) -> c_1(x) , fact^#(s(x)) -> c_2(*^#(s(x), fact(p(s(x))))) , fact^#(0()) -> c_3() , *^#(s(x), y) -> c_4(+^#(*(x, y), y)) , *^#(0(), y) -> c_5() , +^#(x, s(y)) -> c_6(+^#(x, y)) , +^#(x, 0()) -> c_7(x) } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { p^#(s(x)) -> c_1(x) , fact^#(s(x)) -> c_2(*^#(s(x), fact(p(s(x))))) , fact^#(0()) -> c_3() , *^#(s(x), y) -> c_4(+^#(*(x, y), y)) , *^#(0(), y) -> c_5() , +^#(x, s(y)) -> c_6(+^#(x, y)) , +^#(x, 0()) -> c_7(x) } Strict Trs: { p(s(x)) -> x , fact(s(x)) -> *(s(x), fact(p(s(x)))) , fact(0()) -> s(0()) , *(s(x), y) -> +(*(x, y), y) , *(0(), y) -> 0() , +(x, s(y)) -> s(+(x, y)) , +(x, 0()) -> x } Obligation: runtime complexity Answer: MAYBE We estimate the number of application of {3,5} by applications of Pre({3,5}) = {1,7}. Here rules are labeled as follows: DPs: { 1: p^#(s(x)) -> c_1(x) , 2: fact^#(s(x)) -> c_2(*^#(s(x), fact(p(s(x))))) , 3: fact^#(0()) -> c_3() , 4: *^#(s(x), y) -> c_4(+^#(*(x, y), y)) , 5: *^#(0(), y) -> c_5() , 6: +^#(x, s(y)) -> c_6(+^#(x, y)) , 7: +^#(x, 0()) -> c_7(x) } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { p^#(s(x)) -> c_1(x) , fact^#(s(x)) -> c_2(*^#(s(x), fact(p(s(x))))) , *^#(s(x), y) -> c_4(+^#(*(x, y), y)) , +^#(x, s(y)) -> c_6(+^#(x, y)) , +^#(x, 0()) -> c_7(x) } Strict Trs: { p(s(x)) -> x , fact(s(x)) -> *(s(x), fact(p(s(x)))) , fact(0()) -> s(0()) , *(s(x), y) -> +(*(x, y), y) , *(0(), y) -> 0() , +(x, s(y)) -> s(+(x, y)) , +(x, 0()) -> x } Weak DPs: { fact^#(0()) -> c_3() , *^#(0(), y) -> c_5() } Obligation: runtime complexity Answer: MAYBE Empty strict component of the problem is NOT empty. Arrrr..