/export/starexec/sandbox2/solver/bin/starexec_run_rcdcRelativeAlsoLower /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- WORST_CASE(Omega(n^1), ?) proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty The Derivational Complexity (innermost) of the given DCpxTrs could be proven to be BOUNDS(n^1, INF). (0) DCpxTrs (1) DerivationalComplexityToRuntimeComplexityProof [BOTH BOUNDS(ID, ID), 0 ms] (2) CpxRelTRS (3) SInnermostTerminationProof [BOTH CONCRETE BOUNDS(ID, ID), 185 ms] (4) CpxRelTRS (5) RelTrsToDecreasingLoopProblemProof [LOWER BOUND(ID), 0 ms] (6) TRS for Loop Detection (7) DecreasingLoopProof [LOWER BOUND(ID), 0 ms] (8) BEST (9) proven lower bound (10) LowerBoundPropagationProof [FINISHED, 0 ms] (11) BOUNDS(n^1, INF) (12) TRS for Loop Detection ---------------------------------------- (0) Obligation: The Derivational Complexity (innermost) of the given DCpxTrs could be proven to be BOUNDS(n^1, INF). The TRS R consists of the following rules: f(0) -> true f(1) -> false f(s(x)) -> f(x) if(true, x, y) -> x if(false, x, y) -> y g(s(x), s(y)) -> if(f(x), s(x), s(y)) g(x, c(y)) -> g(x, g(s(c(y)), y)) S is empty. Rewrite Strategy: INNERMOST ---------------------------------------- (1) DerivationalComplexityToRuntimeComplexityProof (BOTH BOUNDS(ID, ID)) The following rules have been added to S to convert the given derivational complexity problem to a runtime complexity problem: encArg(0) -> 0 encArg(true) -> true encArg(1) -> 1 encArg(false) -> false encArg(s(x_1)) -> s(encArg(x_1)) encArg(c(x_1)) -> c(encArg(x_1)) encArg(cons_f(x_1)) -> f(encArg(x_1)) encArg(cons_if(x_1, x_2, x_3)) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encArg(cons_g(x_1, x_2)) -> g(encArg(x_1), encArg(x_2)) encode_f(x_1) -> f(encArg(x_1)) encode_0 -> 0 encode_true -> true encode_1 -> 1 encode_false -> false encode_s(x_1) -> s(encArg(x_1)) encode_if(x_1, x_2, x_3) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encode_g(x_1, x_2) -> g(encArg(x_1), encArg(x_2)) encode_c(x_1) -> c(encArg(x_1)) ---------------------------------------- (2) Obligation: The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(n^1, INF). The TRS R consists of the following rules: f(0) -> true f(1) -> false f(s(x)) -> f(x) if(true, x, y) -> x if(false, x, y) -> y g(s(x), s(y)) -> if(f(x), s(x), s(y)) g(x, c(y)) -> g(x, g(s(c(y)), y)) The (relative) TRS S consists of the following rules: encArg(0) -> 0 encArg(true) -> true encArg(1) -> 1 encArg(false) -> false encArg(s(x_1)) -> s(encArg(x_1)) encArg(c(x_1)) -> c(encArg(x_1)) encArg(cons_f(x_1)) -> f(encArg(x_1)) encArg(cons_if(x_1, x_2, x_3)) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encArg(cons_g(x_1, x_2)) -> g(encArg(x_1), encArg(x_2)) encode_f(x_1) -> f(encArg(x_1)) encode_0 -> 0 encode_true -> true encode_1 -> 1 encode_false -> false encode_s(x_1) -> s(encArg(x_1)) encode_if(x_1, x_2, x_3) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encode_g(x_1, x_2) -> g(encArg(x_1), encArg(x_2)) encode_c(x_1) -> c(encArg(x_1)) Rewrite Strategy: INNERMOST ---------------------------------------- (3) SInnermostTerminationProof (BOTH CONCRETE BOUNDS(ID, ID)) proved innermost termination of relative rules ---------------------------------------- (4) Obligation: The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(n^1, INF). The TRS R consists of the following rules: f(0) -> true f(1) -> false f(s(x)) -> f(x) if(true, x, y) -> x if(false, x, y) -> y g(s(x), s(y)) -> if(f(x), s(x), s(y)) g(x, c(y)) -> g(x, g(s(c(y)), y)) The (relative) TRS S consists of the following rules: encArg(0) -> 0 encArg(true) -> true encArg(1) -> 1 encArg(false) -> false encArg(s(x_1)) -> s(encArg(x_1)) encArg(c(x_1)) -> c(encArg(x_1)) encArg(cons_f(x_1)) -> f(encArg(x_1)) encArg(cons_if(x_1, x_2, x_3)) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encArg(cons_g(x_1, x_2)) -> g(encArg(x_1), encArg(x_2)) encode_f(x_1) -> f(encArg(x_1)) encode_0 -> 0 encode_true -> true encode_1 -> 1 encode_false -> false encode_s(x_1) -> s(encArg(x_1)) encode_if(x_1, x_2, x_3) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encode_g(x_1, x_2) -> g(encArg(x_1), encArg(x_2)) encode_c(x_1) -> c(encArg(x_1)) Rewrite Strategy: INNERMOST ---------------------------------------- (5) RelTrsToDecreasingLoopProblemProof (LOWER BOUND(ID)) Transformed a relative TRS into a decreasing-loop problem. ---------------------------------------- (6) Obligation: Analyzing the following TRS for decreasing loops: The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(n^1, INF). The TRS R consists of the following rules: f(0) -> true f(1) -> false f(s(x)) -> f(x) if(true, x, y) -> x if(false, x, y) -> y g(s(x), s(y)) -> if(f(x), s(x), s(y)) g(x, c(y)) -> g(x, g(s(c(y)), y)) The (relative) TRS S consists of the following rules: encArg(0) -> 0 encArg(true) -> true encArg(1) -> 1 encArg(false) -> false encArg(s(x_1)) -> s(encArg(x_1)) encArg(c(x_1)) -> c(encArg(x_1)) encArg(cons_f(x_1)) -> f(encArg(x_1)) encArg(cons_if(x_1, x_2, x_3)) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encArg(cons_g(x_1, x_2)) -> g(encArg(x_1), encArg(x_2)) encode_f(x_1) -> f(encArg(x_1)) encode_0 -> 0 encode_true -> true encode_1 -> 1 encode_false -> false encode_s(x_1) -> s(encArg(x_1)) encode_if(x_1, x_2, x_3) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encode_g(x_1, x_2) -> g(encArg(x_1), encArg(x_2)) encode_c(x_1) -> c(encArg(x_1)) Rewrite Strategy: INNERMOST ---------------------------------------- (7) DecreasingLoopProof (LOWER BOUND(ID)) The following loop(s) give(s) rise to the lower bound Omega(n^1): The rewrite sequence g(x, c(y)) ->^+ g(x, g(s(c(y)), y)) gives rise to a decreasing loop by considering the right hand sides subterm at position [1]. The pumping substitution is [y / c(y)]. The result substitution is [x / s(c(y))]. ---------------------------------------- (8) Complex Obligation (BEST) ---------------------------------------- (9) Obligation: Proved the lower bound n^1 for the following obligation: The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(n^1, INF). The TRS R consists of the following rules: f(0) -> true f(1) -> false f(s(x)) -> f(x) if(true, x, y) -> x if(false, x, y) -> y g(s(x), s(y)) -> if(f(x), s(x), s(y)) g(x, c(y)) -> g(x, g(s(c(y)), y)) The (relative) TRS S consists of the following rules: encArg(0) -> 0 encArg(true) -> true encArg(1) -> 1 encArg(false) -> false encArg(s(x_1)) -> s(encArg(x_1)) encArg(c(x_1)) -> c(encArg(x_1)) encArg(cons_f(x_1)) -> f(encArg(x_1)) encArg(cons_if(x_1, x_2, x_3)) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encArg(cons_g(x_1, x_2)) -> g(encArg(x_1), encArg(x_2)) encode_f(x_1) -> f(encArg(x_1)) encode_0 -> 0 encode_true -> true encode_1 -> 1 encode_false -> false encode_s(x_1) -> s(encArg(x_1)) encode_if(x_1, x_2, x_3) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encode_g(x_1, x_2) -> g(encArg(x_1), encArg(x_2)) encode_c(x_1) -> c(encArg(x_1)) Rewrite Strategy: INNERMOST ---------------------------------------- (10) LowerBoundPropagationProof (FINISHED) Propagated lower bound. ---------------------------------------- (11) BOUNDS(n^1, INF) ---------------------------------------- (12) Obligation: Analyzing the following TRS for decreasing loops: The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(n^1, INF). The TRS R consists of the following rules: f(0) -> true f(1) -> false f(s(x)) -> f(x) if(true, x, y) -> x if(false, x, y) -> y g(s(x), s(y)) -> if(f(x), s(x), s(y)) g(x, c(y)) -> g(x, g(s(c(y)), y)) The (relative) TRS S consists of the following rules: encArg(0) -> 0 encArg(true) -> true encArg(1) -> 1 encArg(false) -> false encArg(s(x_1)) -> s(encArg(x_1)) encArg(c(x_1)) -> c(encArg(x_1)) encArg(cons_f(x_1)) -> f(encArg(x_1)) encArg(cons_if(x_1, x_2, x_3)) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encArg(cons_g(x_1, x_2)) -> g(encArg(x_1), encArg(x_2)) encode_f(x_1) -> f(encArg(x_1)) encode_0 -> 0 encode_true -> true encode_1 -> 1 encode_false -> false encode_s(x_1) -> s(encArg(x_1)) encode_if(x_1, x_2, x_3) -> if(encArg(x_1), encArg(x_2), encArg(x_3)) encode_g(x_1, x_2) -> g(encArg(x_1), encArg(x_2)) encode_c(x_1) -> c(encArg(x_1)) Rewrite Strategy: INNERMOST