YES proof of /export/starexec/sandbox/benchmark/theBenchmark.xml # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Termination of the given CSR could be proven: (0) CSR (1) CSRRRRProof [EQUIVALENT, 38 ms] (2) CSR (3) CSRRRRProof [EQUIVALENT, 0 ms] (4) CSR (5) RisEmptyProof [EQUIVALENT, 0 ms] (6) YES ---------------------------------------- (0) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: zeros -> cons(0, zeros) tail(cons(X, XS)) -> XS The replacement map contains the following entries: zeros: empty set cons: {1} 0: empty set tail: {1} ---------------------------------------- (1) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: zeros -> cons(0, zeros) tail(cons(X, XS)) -> XS The replacement map contains the following entries: zeros: empty set cons: {1} 0: empty set tail: {1} Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = x_1 + x_2 POL(tail(x_1)) = 1 + 2*x_1 POL(zeros) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: tail(cons(X, XS)) -> XS ---------------------------------------- (2) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: zeros -> cons(0, zeros) The replacement map contains the following entries: zeros: empty set cons: {1} 0: empty set ---------------------------------------- (3) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: zeros -> cons(0, zeros) The replacement map contains the following entries: zeros: empty set cons: {1} 0: empty set Used ordering: Polynomial interpretation [POLO]: POL(0) = 1 POL(cons(x_1, x_2)) = x_1 POL(zeros) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: zeros -> cons(0, zeros) ---------------------------------------- (4) Obligation: Context-sensitive rewrite system: R is empty. ---------------------------------------- (5) RisEmptyProof (EQUIVALENT) The CSR R is empty. Hence, termination is trivially proven. ---------------------------------------- (6) YES