2.92/1.63 WORST_CASE(NON_POLY, ?) 2.92/1.64 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.92/1.64 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.92/1.64 2.92/1.64 2.92/1.64 The Runtime Complexity (innermost) of the given CpxTRS could be proven to be BOUNDS(INF, INF). 2.92/1.64 2.92/1.64 (0) CpxTRS 2.92/1.64 (1) RelTrsToDecreasingLoopProblemProof [LOWER BOUND(ID), 0 ms] 2.92/1.64 (2) TRS for Loop Detection 2.92/1.64 (3) InfiniteLowerBoundProof [FINISHED, 0 ms] 2.92/1.64 (4) BOUNDS(INF, INF) 2.92/1.64 2.92/1.64 2.92/1.64 ---------------------------------------- 2.92/1.64 2.92/1.64 (0) 2.92/1.64 Obligation: 2.92/1.64 The Runtime Complexity (innermost) of the given CpxTRS could be proven to be BOUNDS(INF, INF). 2.92/1.64 2.92/1.64 2.92/1.64 The TRS R consists of the following rules: 2.92/1.64 2.92/1.64 from(X) -> cons(X, from(s(X))) 2.92/1.64 2ndspos(0, Z) -> rnil 2.92/1.64 2ndspos(s(N), cons(X, cons(Y, Z))) -> rcons(posrecip(Y), 2ndsneg(N, Z)) 2.92/1.64 2ndsneg(0, Z) -> rnil 2.92/1.64 2ndsneg(s(N), cons(X, cons(Y, Z))) -> rcons(negrecip(Y), 2ndspos(N, Z)) 2.92/1.64 pi(X) -> 2ndspos(X, from(0)) 2.92/1.64 plus(0, Y) -> Y 2.92/1.64 plus(s(X), Y) -> s(plus(X, Y)) 2.92/1.64 times(0, Y) -> 0 2.92/1.64 times(s(X), Y) -> plus(Y, times(X, Y)) 2.92/1.64 square(X) -> times(X, X) 2.92/1.64 2.92/1.64 S is empty. 2.92/1.64 Rewrite Strategy: INNERMOST 2.92/1.64 ---------------------------------------- 2.92/1.64 2.92/1.64 (1) RelTrsToDecreasingLoopProblemProof (LOWER BOUND(ID)) 2.92/1.64 Transformed a relative TRS into a decreasing-loop problem. 2.92/1.64 ---------------------------------------- 2.92/1.64 2.92/1.64 (2) 2.92/1.64 Obligation: 2.92/1.64 Analyzing the following TRS for decreasing loops: 2.92/1.64 2.92/1.64 The Runtime Complexity (innermost) of the given CpxTRS could be proven to be BOUNDS(INF, INF). 2.92/1.64 2.92/1.64 2.92/1.64 The TRS R consists of the following rules: 2.92/1.64 2.92/1.64 from(X) -> cons(X, from(s(X))) 2.92/1.64 2ndspos(0, Z) -> rnil 2.92/1.64 2ndspos(s(N), cons(X, cons(Y, Z))) -> rcons(posrecip(Y), 2ndsneg(N, Z)) 2.92/1.64 2ndsneg(0, Z) -> rnil 2.92/1.64 2ndsneg(s(N), cons(X, cons(Y, Z))) -> rcons(negrecip(Y), 2ndspos(N, Z)) 2.92/1.64 pi(X) -> 2ndspos(X, from(0)) 2.92/1.64 plus(0, Y) -> Y 2.92/1.64 plus(s(X), Y) -> s(plus(X, Y)) 2.92/1.64 times(0, Y) -> 0 2.92/1.64 times(s(X), Y) -> plus(Y, times(X, Y)) 2.92/1.64 square(X) -> times(X, X) 2.92/1.64 2.92/1.64 S is empty. 2.92/1.64 Rewrite Strategy: INNERMOST 2.92/1.64 ---------------------------------------- 2.92/1.64 2.92/1.64 (3) InfiniteLowerBoundProof (FINISHED) 2.92/1.64 The following loop proves infinite runtime complexity: 2.92/1.64 2.92/1.64 The rewrite sequence 2.92/1.64 2.92/1.64 from(X) ->^+ cons(X, from(s(X))) 2.92/1.64 2.92/1.64 gives rise to a decreasing loop by considering the right hand sides subterm at position [1]. 2.92/1.64 2.92/1.64 The pumping substitution is [ ]. 2.92/1.64 2.92/1.64 The result substitution is [X / s(X)]. 2.92/1.64 2.92/1.64 2.92/1.64 2.92/1.64 2.92/1.64 ---------------------------------------- 2.92/1.64 2.92/1.64 (4) 2.92/1.64 BOUNDS(INF, INF) 3.24/1.66 EOF