MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { div(x, s(y)) -> d(x, s(y), 0()) , d(x, s(y), z) -> cond(ge(x, z), x, y, z) , cond(true(), x, y, z) -> s(d(x, s(y), plus(s(y), z))) , cond(false(), x, y, z) -> 0() , ge(u, 0()) -> true() , ge(s(u), s(v)) -> ge(u, v) , ge(0(), s(v)) -> false() , plus(n, s(m)) -> s(plus(n, m)) , plus(n, 0()) -> n } 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: { div^#(x, s(y)) -> c_1(d^#(x, s(y), 0())) , d^#(x, s(y), z) -> c_2(cond^#(ge(x, z), x, y, z)) , cond^#(true(), x, y, z) -> c_3(d^#(x, s(y), plus(s(y), z))) , cond^#(false(), x, y, z) -> c_4() , ge^#(u, 0()) -> c_5() , ge^#(s(u), s(v)) -> c_6(ge^#(u, v)) , ge^#(0(), s(v)) -> c_7() , plus^#(n, s(m)) -> c_8(plus^#(n, m)) , plus^#(n, 0()) -> c_9(n) } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { div^#(x, s(y)) -> c_1(d^#(x, s(y), 0())) , d^#(x, s(y), z) -> c_2(cond^#(ge(x, z), x, y, z)) , cond^#(true(), x, y, z) -> c_3(d^#(x, s(y), plus(s(y), z))) , cond^#(false(), x, y, z) -> c_4() , ge^#(u, 0()) -> c_5() , ge^#(s(u), s(v)) -> c_6(ge^#(u, v)) , ge^#(0(), s(v)) -> c_7() , plus^#(n, s(m)) -> c_8(plus^#(n, m)) , plus^#(n, 0()) -> c_9(n) } Strict Trs: { div(x, s(y)) -> d(x, s(y), 0()) , d(x, s(y), z) -> cond(ge(x, z), x, y, z) , cond(true(), x, y, z) -> s(d(x, s(y), plus(s(y), z))) , cond(false(), x, y, z) -> 0() , ge(u, 0()) -> true() , ge(s(u), s(v)) -> ge(u, v) , ge(0(), s(v)) -> false() , plus(n, s(m)) -> s(plus(n, m)) , plus(n, 0()) -> n } Obligation: runtime complexity Answer: MAYBE We estimate the number of application of {4,5,7} by applications of Pre({4,5,7}) = {2,6,9}. Here rules are labeled as follows: DPs: { 1: div^#(x, s(y)) -> c_1(d^#(x, s(y), 0())) , 2: d^#(x, s(y), z) -> c_2(cond^#(ge(x, z), x, y, z)) , 3: cond^#(true(), x, y, z) -> c_3(d^#(x, s(y), plus(s(y), z))) , 4: cond^#(false(), x, y, z) -> c_4() , 5: ge^#(u, 0()) -> c_5() , 6: ge^#(s(u), s(v)) -> c_6(ge^#(u, v)) , 7: ge^#(0(), s(v)) -> c_7() , 8: plus^#(n, s(m)) -> c_8(plus^#(n, m)) , 9: plus^#(n, 0()) -> c_9(n) } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { div^#(x, s(y)) -> c_1(d^#(x, s(y), 0())) , d^#(x, s(y), z) -> c_2(cond^#(ge(x, z), x, y, z)) , cond^#(true(), x, y, z) -> c_3(d^#(x, s(y), plus(s(y), z))) , ge^#(s(u), s(v)) -> c_6(ge^#(u, v)) , plus^#(n, s(m)) -> c_8(plus^#(n, m)) , plus^#(n, 0()) -> c_9(n) } Strict Trs: { div(x, s(y)) -> d(x, s(y), 0()) , d(x, s(y), z) -> cond(ge(x, z), x, y, z) , cond(true(), x, y, z) -> s(d(x, s(y), plus(s(y), z))) , cond(false(), x, y, z) -> 0() , ge(u, 0()) -> true() , ge(s(u), s(v)) -> ge(u, v) , ge(0(), s(v)) -> false() , plus(n, s(m)) -> s(plus(n, m)) , plus(n, 0()) -> n } Weak DPs: { cond^#(false(), x, y, z) -> c_4() , ge^#(u, 0()) -> c_5() , ge^#(0(), s(v)) -> c_7() } Obligation: runtime complexity Answer: MAYBE Empty strict component of the problem is NOT empty. Arrrr..