MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { minus(x, 0()) -> x , minus(x, plus(y, z)) -> minus(minus(x, y), z) , minus(0(), y) -> 0() , minus(s(x), s(y)) -> minus(p(s(x)), p(s(y))) , p(0()) -> s(s(0())) , p(s(s(x))) -> s(p(s(x))) , plus(0(), y) -> y , plus(s(x), y) -> s(plus(y, minus(s(x), s(0())))) , div(s(x), s(y)) -> s(div(minus(x, y), s(y))) , div(plus(x, y), z) -> plus(div(x, z), div(y, z)) } 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) '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. 3) '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) 'Innermost Weak Dependency Pairs (timeout of 60 seconds)' failed due to the following reason: We add the following weak dependency pairs: Strict DPs: { minus^#(x, 0()) -> c_1(x) , minus^#(x, plus(y, z)) -> c_2(minus^#(minus(x, y), z)) , minus^#(0(), y) -> c_3() , minus^#(s(x), s(y)) -> c_4(minus^#(p(s(x)), p(s(y)))) , p^#(0()) -> c_5() , p^#(s(s(x))) -> c_6(p^#(s(x))) , plus^#(0(), y) -> c_7(y) , plus^#(s(x), y) -> c_8(plus^#(y, minus(s(x), s(0())))) , div^#(s(x), s(y)) -> c_9(div^#(minus(x, y), s(y))) , div^#(plus(x, y), z) -> c_10(plus^#(div(x, z), div(y, z))) } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { minus^#(x, 0()) -> c_1(x) , minus^#(x, plus(y, z)) -> c_2(minus^#(minus(x, y), z)) , minus^#(0(), y) -> c_3() , minus^#(s(x), s(y)) -> c_4(minus^#(p(s(x)), p(s(y)))) , p^#(0()) -> c_5() , p^#(s(s(x))) -> c_6(p^#(s(x))) , plus^#(0(), y) -> c_7(y) , plus^#(s(x), y) -> c_8(plus^#(y, minus(s(x), s(0())))) , div^#(s(x), s(y)) -> c_9(div^#(minus(x, y), s(y))) , div^#(plus(x, y), z) -> c_10(plus^#(div(x, z), div(y, z))) } Strict Trs: { minus(x, 0()) -> x , minus(x, plus(y, z)) -> minus(minus(x, y), z) , minus(0(), y) -> 0() , minus(s(x), s(y)) -> minus(p(s(x)), p(s(y))) , p(0()) -> s(s(0())) , p(s(s(x))) -> s(p(s(x))) , plus(0(), y) -> y , plus(s(x), y) -> s(plus(y, minus(s(x), s(0())))) , div(s(x), s(y)) -> s(div(minus(x, y), s(y))) , div(plus(x, y), z) -> plus(div(x, z), div(y, z)) } Obligation: runtime complexity Answer: MAYBE We estimate the number of application of {3,5} by applications of Pre({3,5}) = {1,2,4,7}. Here rules are labeled as follows: DPs: { 1: minus^#(x, 0()) -> c_1(x) , 2: minus^#(x, plus(y, z)) -> c_2(minus^#(minus(x, y), z)) , 3: minus^#(0(), y) -> c_3() , 4: minus^#(s(x), s(y)) -> c_4(minus^#(p(s(x)), p(s(y)))) , 5: p^#(0()) -> c_5() , 6: p^#(s(s(x))) -> c_6(p^#(s(x))) , 7: plus^#(0(), y) -> c_7(y) , 8: plus^#(s(x), y) -> c_8(plus^#(y, minus(s(x), s(0())))) , 9: div^#(s(x), s(y)) -> c_9(div^#(minus(x, y), s(y))) , 10: div^#(plus(x, y), z) -> c_10(plus^#(div(x, z), div(y, z))) } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { minus^#(x, 0()) -> c_1(x) , minus^#(x, plus(y, z)) -> c_2(minus^#(minus(x, y), z)) , minus^#(s(x), s(y)) -> c_4(minus^#(p(s(x)), p(s(y)))) , p^#(s(s(x))) -> c_6(p^#(s(x))) , plus^#(0(), y) -> c_7(y) , plus^#(s(x), y) -> c_8(plus^#(y, minus(s(x), s(0())))) , div^#(s(x), s(y)) -> c_9(div^#(minus(x, y), s(y))) , div^#(plus(x, y), z) -> c_10(plus^#(div(x, z), div(y, z))) } Strict Trs: { minus(x, 0()) -> x , minus(x, plus(y, z)) -> minus(minus(x, y), z) , minus(0(), y) -> 0() , minus(s(x), s(y)) -> minus(p(s(x)), p(s(y))) , p(0()) -> s(s(0())) , p(s(s(x))) -> s(p(s(x))) , plus(0(), y) -> y , plus(s(x), y) -> s(plus(y, minus(s(x), s(0())))) , div(s(x), s(y)) -> s(div(minus(x, y), s(y))) , div(plus(x, y), z) -> plus(div(x, z), div(y, z)) } Weak DPs: { minus^#(0(), y) -> c_3() , p^#(0()) -> c_5() } Obligation: runtime complexity Answer: MAYBE Empty strict component of the problem is NOT empty. Arrrr..