3.08/1.51 WORST_CASE(NON_POLY, ?) 3.08/1.52 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 3.08/1.52 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.08/1.52 3.08/1.52 3.08/1.52 The Runtime Complexity (full) of the given CpxTRS could be proven to be BOUNDS(INF, INF). 3.08/1.52 3.08/1.52 (0) CpxTRS 3.08/1.52 (1) RelTrsToDecreasingLoopProblemProof [LOWER BOUND(ID), 0 ms] 3.08/1.52 (2) TRS for Loop Detection 3.08/1.52 (3) InfiniteLowerBoundProof [FINISHED, 0 ms] 3.08/1.52 (4) BOUNDS(INF, INF) 3.08/1.52 3.08/1.52 3.08/1.52 ---------------------------------------- 3.08/1.52 3.08/1.52 (0) 3.08/1.52 Obligation: 3.08/1.52 The Runtime Complexity (full) of the given CpxTRS could be proven to be BOUNDS(INF, INF). 3.08/1.52 3.08/1.52 3.08/1.52 The TRS R consists of the following rules: 3.08/1.52 3.08/1.52 from(X) -> cons(X, from(s(X))) 3.08/1.52 2ndspos(0, Z) -> rnil 3.08/1.52 2ndspos(s(N), cons(X, cons(Y, Z))) -> rcons(posrecip(Y), 2ndsneg(N, Z)) 3.08/1.52 2ndsneg(0, Z) -> rnil 3.08/1.52 2ndsneg(s(N), cons(X, cons(Y, Z))) -> rcons(negrecip(Y), 2ndspos(N, Z)) 3.08/1.52 pi(X) -> 2ndspos(X, from(0)) 3.08/1.52 plus(0, Y) -> Y 3.08/1.52 plus(s(X), Y) -> s(plus(X, Y)) 3.08/1.52 times(0, Y) -> 0 3.08/1.52 times(s(X), Y) -> plus(Y, times(X, Y)) 3.08/1.52 square(X) -> times(X, X) 3.08/1.52 3.08/1.52 S is empty. 3.08/1.52 Rewrite Strategy: FULL 3.08/1.52 ---------------------------------------- 3.08/1.52 3.08/1.52 (1) RelTrsToDecreasingLoopProblemProof (LOWER BOUND(ID)) 3.08/1.52 Transformed a relative TRS into a decreasing-loop problem. 3.08/1.52 ---------------------------------------- 3.08/1.52 3.08/1.52 (2) 3.08/1.52 Obligation: 3.08/1.52 Analyzing the following TRS for decreasing loops: 3.08/1.52 3.08/1.52 The Runtime Complexity (full) of the given CpxTRS could be proven to be BOUNDS(INF, INF). 3.08/1.52 3.08/1.52 3.08/1.52 The TRS R consists of the following rules: 3.08/1.52 3.08/1.52 from(X) -> cons(X, from(s(X))) 3.08/1.52 2ndspos(0, Z) -> rnil 3.08/1.52 2ndspos(s(N), cons(X, cons(Y, Z))) -> rcons(posrecip(Y), 2ndsneg(N, Z)) 3.08/1.52 2ndsneg(0, Z) -> rnil 3.08/1.52 2ndsneg(s(N), cons(X, cons(Y, Z))) -> rcons(negrecip(Y), 2ndspos(N, Z)) 3.08/1.52 pi(X) -> 2ndspos(X, from(0)) 3.08/1.52 plus(0, Y) -> Y 3.08/1.52 plus(s(X), Y) -> s(plus(X, Y)) 3.08/1.52 times(0, Y) -> 0 3.08/1.52 times(s(X), Y) -> plus(Y, times(X, Y)) 3.08/1.52 square(X) -> times(X, X) 3.08/1.52 3.08/1.52 S is empty. 3.08/1.52 Rewrite Strategy: FULL 3.08/1.52 ---------------------------------------- 3.08/1.52 3.08/1.52 (3) InfiniteLowerBoundProof (FINISHED) 3.08/1.52 The following loop proves infinite runtime complexity: 3.08/1.52 3.08/1.52 The rewrite sequence 3.08/1.52 3.08/1.52 from(X) ->^+ cons(X, from(s(X))) 3.08/1.52 3.08/1.52 gives rise to a decreasing loop by considering the right hand sides subterm at position [1]. 3.08/1.52 3.08/1.52 The pumping substitution is [ ]. 3.08/1.52 3.08/1.52 The result substitution is [X / s(X)]. 3.08/1.52 3.08/1.52 3.08/1.52 3.08/1.52 3.08/1.52 ---------------------------------------- 3.08/1.52 3.08/1.52 (4) 3.08/1.52 BOUNDS(INF, INF) 3.08/1.56 EOF