YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Termination of the given CSR could be proven: (0) CSR (1) CSRRRRProof [EQUIVALENT, 52 ms] (2) CSR (3) CSRRRRProof [EQUIVALENT, 0 ms] (4) CSR (5) CSRRRRProof [EQUIVALENT, 0 ms] (6) CSR (7) RisEmptyProof [EQUIVALENT, 0 ms] (8) YES ---------------------------------------- (0) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: and(tt, X) -> X plus(N, 0) -> N plus(N, s(M)) -> s(plus(N, M)) The replacement map contains the following entries: and: {1} tt: empty set plus: {1, 2} 0: empty set s: {1} ---------------------------------------- (1) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: and(tt, X) -> X plus(N, 0) -> N plus(N, s(M)) -> s(plus(N, M)) The replacement map contains the following entries: and: {1} tt: empty set plus: {1, 2} 0: empty set s: {1} Used ordering: Polynomial interpretation [POLO]: POL(0) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(plus(x_1, x_2)) = x_1 + x_2 POL(s(x_1)) = x_1 POL(tt) = 0 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: plus(N, 0) -> N ---------------------------------------- (2) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: and(tt, X) -> X plus(N, s(M)) -> s(plus(N, M)) The replacement map contains the following entries: and: {1} tt: empty set plus: {1, 2} s: {1} ---------------------------------------- (3) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: and(tt, X) -> X plus(N, s(M)) -> s(plus(N, M)) The replacement map contains the following entries: and: {1} tt: empty set plus: {1, 2} s: {1} Used ordering: Polynomial interpretation [POLO]: POL(and(x_1, x_2)) = 1 + x_1 + x_2 POL(plus(x_1, x_2)) = x_1 + x_2 POL(s(x_1)) = x_1 POL(tt) = 0 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: and(tt, X) -> X ---------------------------------------- (4) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: plus(N, s(M)) -> s(plus(N, M)) The replacement map contains the following entries: plus: {1, 2} s: {1} ---------------------------------------- (5) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: plus(N, s(M)) -> s(plus(N, M)) The replacement map contains the following entries: plus: {1, 2} s: {1} Used ordering: Polynomial interpretation [POLO]: POL(plus(x_1, x_2)) = 2*x_1 + 2*x_2 POL(s(x_1)) = 1 + x_1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: plus(N, s(M)) -> s(plus(N, M)) ---------------------------------------- (6) Obligation: Context-sensitive rewrite system: R is empty. ---------------------------------------- (7) RisEmptyProof (EQUIVALENT) The CSR R is empty. Hence, termination is trivially proven. ---------------------------------------- (8) YES