MAYBE 597.90/210.95 MAYBE 597.90/210.95 597.90/210.95 We are left with following problem, upon which TcT provides the 597.90/210.95 certificate MAYBE. 597.90/210.95 597.90/210.95 Strict Trs: 597.90/210.95 { nthtail(n, l) -> cond(ge(n, length(l)), n, l) 597.90/210.95 , cond(true(), n, l) -> l 597.90/210.95 , cond(false(), n, l) -> tail(nthtail(s(n), l)) 597.90/210.95 , ge(u, 0()) -> true() 597.90/210.95 , ge(s(u), s(v)) -> ge(u, v) 597.90/210.95 , ge(0(), s(v)) -> false() 597.90/210.95 , length(nil()) -> 0() 597.90/210.95 , length(cons(x, l)) -> s(length(l)) 597.90/210.95 , tail(nil()) -> nil() 597.90/210.95 , tail(cons(x, l)) -> l } 597.90/210.95 Obligation: 597.90/210.95 runtime complexity 597.90/210.95 Answer: 597.90/210.95 MAYBE 597.90/210.95 597.90/210.95 None of the processors succeeded. 597.90/210.95 597.90/210.95 Details of failed attempt(s): 597.90/210.95 ----------------------------- 597.90/210.95 1) 'Best' failed due to the following reason: 597.90/210.95 597.90/210.95 None of the processors succeeded. 597.90/210.95 597.90/210.95 Details of failed attempt(s): 597.90/210.95 ----------------------------- 597.90/210.95 1) 'With Problem ... (timeout of 148 seconds) (timeout of 297 597.90/210.95 seconds)' failed due to the following reason: 597.90/210.95 597.90/210.95 Computation stopped due to timeout after 148.0 seconds. 597.90/210.95 597.90/210.95 2) 'Fastest (timeout of 24 seconds) (timeout of 297 seconds)' 597.90/210.95 failed due to the following reason: 597.90/210.95 597.90/210.95 None of the processors succeeded. 597.90/210.95 597.90/210.95 Details of failed attempt(s): 597.90/210.95 ----------------------------- 597.90/210.95 1) 'Bounds with perSymbol-enrichment and initial automaton 'match'' 597.90/210.95 failed due to the following reason: 597.90/210.95 597.90/210.95 match-boundness of the problem could not be verified. 597.90/210.95 597.90/210.95 2) 'Bounds with minimal-enrichment and initial automaton 'match'' 597.90/210.95 failed due to the following reason: 597.90/210.95 597.90/210.95 match-boundness of the problem could not be verified. 597.90/210.95 597.90/210.95 597.90/210.95 3) 'Best' failed due to the following reason: 597.90/210.95 597.90/210.95 None of the processors succeeded. 597.90/210.95 597.90/210.95 Details of failed attempt(s): 597.90/210.95 ----------------------------- 597.90/210.95 1) 'Polynomial Path Order (PS) (timeout of 297 seconds)' failed due 597.90/210.95 to the following reason: 597.90/210.95 597.90/210.95 The processor is inapplicable, reason: 597.90/210.95 Processor only applicable for innermost runtime complexity analysis 597.90/210.95 597.90/210.95 2) 'bsearch-popstar (timeout of 297 seconds)' failed due to the 597.90/210.96 following reason: 597.90/210.96 597.90/210.96 The processor is inapplicable, reason: 597.90/210.96 Processor only applicable for innermost runtime complexity analysis 597.90/210.96 597.90/210.96 597.90/210.96 597.90/210.96 2) 'Weak Dependency Pairs (timeout of 297 seconds)' failed due to 597.90/210.96 the following reason: 597.90/210.96 597.90/210.96 We add the following weak dependency pairs: 597.90/210.96 597.90/210.96 Strict DPs: 597.90/210.96 { nthtail^#(n, l) -> c_1(cond^#(ge(n, length(l)), n, l)) 597.90/210.96 , cond^#(true(), n, l) -> c_2(l) 597.90/210.96 , cond^#(false(), n, l) -> c_3(tail^#(nthtail(s(n), l))) 597.90/210.96 , tail^#(nil()) -> c_9() 597.90/210.96 , tail^#(cons(x, l)) -> c_10(l) 597.90/210.96 , ge^#(u, 0()) -> c_4() 597.90/210.96 , ge^#(s(u), s(v)) -> c_5(ge^#(u, v)) 597.90/210.96 , ge^#(0(), s(v)) -> c_6() 597.90/210.96 , length^#(nil()) -> c_7() 597.90/210.96 , length^#(cons(x, l)) -> c_8(length^#(l)) } 597.90/210.96 597.90/210.96 and mark the set of starting terms. 597.90/210.96 597.90/210.96 We are left with following problem, upon which TcT provides the 597.90/210.96 certificate MAYBE. 597.90/210.96 597.90/210.96 Strict DPs: 597.90/210.96 { nthtail^#(n, l) -> c_1(cond^#(ge(n, length(l)), n, l)) 597.90/210.96 , cond^#(true(), n, l) -> c_2(l) 597.90/210.96 , cond^#(false(), n, l) -> c_3(tail^#(nthtail(s(n), l))) 597.90/210.96 , tail^#(nil()) -> c_9() 597.90/210.96 , tail^#(cons(x, l)) -> c_10(l) 597.90/210.96 , ge^#(u, 0()) -> c_4() 597.90/210.96 , ge^#(s(u), s(v)) -> c_5(ge^#(u, v)) 597.90/210.96 , ge^#(0(), s(v)) -> c_6() 597.90/210.96 , length^#(nil()) -> c_7() 597.90/210.96 , length^#(cons(x, l)) -> c_8(length^#(l)) } 597.90/210.96 Strict Trs: 597.90/210.96 { nthtail(n, l) -> cond(ge(n, length(l)), n, l) 597.90/210.96 , cond(true(), n, l) -> l 597.90/210.96 , cond(false(), n, l) -> tail(nthtail(s(n), l)) 597.90/210.96 , ge(u, 0()) -> true() 597.90/210.96 , ge(s(u), s(v)) -> ge(u, v) 597.90/210.96 , ge(0(), s(v)) -> false() 597.90/210.96 , length(nil()) -> 0() 597.90/210.96 , length(cons(x, l)) -> s(length(l)) 597.90/210.96 , tail(nil()) -> nil() 597.90/210.96 , tail(cons(x, l)) -> l } 597.90/210.96 Obligation: 597.90/210.96 runtime complexity 597.90/210.96 Answer: 597.90/210.96 MAYBE 597.90/210.96 597.90/210.96 We estimate the number of application of {4,6,8,9} by applications 597.90/210.96 of Pre({4,6,8,9}) = {2,3,5,7,10}. Here rules are labeled as 597.90/210.96 follows: 597.90/210.96 597.90/210.96 DPs: 597.90/210.96 { 1: nthtail^#(n, l) -> c_1(cond^#(ge(n, length(l)), n, l)) 597.90/210.96 , 2: cond^#(true(), n, l) -> c_2(l) 597.90/210.96 , 3: cond^#(false(), n, l) -> c_3(tail^#(nthtail(s(n), l))) 597.90/210.96 , 4: tail^#(nil()) -> c_9() 597.90/210.96 , 5: tail^#(cons(x, l)) -> c_10(l) 597.90/210.96 , 6: ge^#(u, 0()) -> c_4() 597.90/210.96 , 7: ge^#(s(u), s(v)) -> c_5(ge^#(u, v)) 597.90/210.96 , 8: ge^#(0(), s(v)) -> c_6() 597.90/210.96 , 9: length^#(nil()) -> c_7() 597.90/210.96 , 10: length^#(cons(x, l)) -> c_8(length^#(l)) } 597.90/210.96 597.90/210.96 We are left with following problem, upon which TcT provides the 597.90/210.96 certificate MAYBE. 597.90/210.96 597.90/210.96 Strict DPs: 597.90/210.96 { nthtail^#(n, l) -> c_1(cond^#(ge(n, length(l)), n, l)) 597.90/210.96 , cond^#(true(), n, l) -> c_2(l) 597.90/210.96 , cond^#(false(), n, l) -> c_3(tail^#(nthtail(s(n), l))) 597.90/210.96 , tail^#(cons(x, l)) -> c_10(l) 597.90/210.96 , ge^#(s(u), s(v)) -> c_5(ge^#(u, v)) 597.90/210.96 , length^#(cons(x, l)) -> c_8(length^#(l)) } 597.90/210.96 Strict Trs: 597.90/210.96 { nthtail(n, l) -> cond(ge(n, length(l)), n, l) 597.90/210.96 , cond(true(), n, l) -> l 597.90/210.96 , cond(false(), n, l) -> tail(nthtail(s(n), l)) 597.90/210.96 , ge(u, 0()) -> true() 597.90/210.96 , ge(s(u), s(v)) -> ge(u, v) 597.90/210.96 , ge(0(), s(v)) -> false() 597.90/210.96 , length(nil()) -> 0() 597.90/210.96 , length(cons(x, l)) -> s(length(l)) 597.90/210.96 , tail(nil()) -> nil() 597.90/210.96 , tail(cons(x, l)) -> l } 597.90/210.96 Weak DPs: 597.90/210.96 { tail^#(nil()) -> c_9() 597.90/210.96 , ge^#(u, 0()) -> c_4() 597.90/210.96 , ge^#(0(), s(v)) -> c_6() 597.90/210.96 , length^#(nil()) -> c_7() } 597.90/210.96 Obligation: 597.90/210.96 runtime complexity 597.90/210.96 Answer: 597.90/210.96 MAYBE 597.90/210.96 597.90/210.96 Empty strict component of the problem is NOT empty. 597.90/210.96 597.90/210.96 597.90/210.96 Arrrr.. 598.23/211.28 EOF