/export/starexec/sandbox2/solver/bin/starexec_run_standard /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml # AProVE Commit ID: c69e44bd14796315568835c1ffa2502984884775 mhark 20210624 unpublished Termination of the given CSR could be proven: (0) CSR (1) CSRRRRProof [EQUIVALENT, 121 ms] (2) CSR (3) CSRRRRProof [EQUIVALENT, 0 ms] (4) CSR (5) CSRRRRProof [EQUIVALENT, 0 ms] (6) CSR (7) CSRRRRProof [EQUIVALENT, 0 ms] (8) CSR (9) CSRRRRProof [EQUIVALENT, 6 ms] (10) CSR (11) CSRRRRProof [EQUIVALENT, 0 ms] (12) CSR (13) CSRRRRProof [EQUIVALENT, 0 ms] (14) CSR (15) RisEmptyProof [EQUIVALENT, 0 ms] (16) YES ---------------------------------------- (0) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) tail(cons(X, XS)) -> XS repItems(nil) -> nil repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set zip: {1, 2} pair: {1, 2} tail: {1} repItems: {1} ---------------------------------------- (1) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) tail(cons(X, XS)) -> XS repItems(nil) -> nil repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set zip: {1, 2} pair: {1, 2} tail: {1} repItems: {1} Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = 2*x_1 + x_2 POL(incr(x_1)) = 2*x_1 POL(nil) = 0 POL(oddNs) = 0 POL(pair(x_1, x_2)) = x_1 + x_2 POL(pairNs) = 0 POL(repItems(x_1)) = 2 + 2*x_1 POL(s(x_1)) = 2*x_1 POL(tail(x_1)) = 2*x_1 POL(take(x_1, x_2)) = x_1 + 2*x_2 POL(zip(x_1, x_2)) = 2*x_1 + 2*x_2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: repItems(nil) -> nil ---------------------------------------- (2) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) tail(cons(X, XS)) -> XS repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set zip: {1, 2} pair: {1, 2} tail: {1} repItems: {1} ---------------------------------------- (3) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) tail(cons(X, XS)) -> XS repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set zip: {1, 2} pair: {1, 2} tail: {1} repItems: {1} Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = 2*x_1 + x_2 POL(incr(x_1)) = x_1 POL(nil) = 0 POL(oddNs) = 0 POL(pair(x_1, x_2)) = x_1 + x_2 POL(pairNs) = 0 POL(repItems(x_1)) = 2 + 2*x_1 POL(s(x_1)) = x_1 POL(tail(x_1)) = 1 + 2*x_1 POL(take(x_1, x_2)) = x_1 + 2*x_2 POL(zip(x_1, x_2)) = x_1 + 2*x_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 ---------------------------------------- (4) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set zip: {1, 2} pair: {1, 2} repItems: {1} ---------------------------------------- (5) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set zip: {1, 2} pair: {1, 2} repItems: {1} Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = 2 + 2*x_1 POL(incr(x_1)) = x_1 POL(nil) = 1 POL(oddNs) = 2 POL(pair(x_1, x_2)) = 2*x_1 + x_2 POL(pairNs) = 2 POL(repItems(x_1)) = 1 + 2*x_1 POL(s(x_1)) = x_1 POL(take(x_1, x_2)) = 1 + x_1 + 2*x_2 POL(zip(x_1, x_2)) = 2*x_1 + 2*x_2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: take(s(N), cons(X, XS)) -> cons(X, take(N, XS)) zip(nil, XS) -> nil zip(X, nil) -> nil zip(cons(X, XS), cons(Y, YS)) -> cons(pair(X, Y), zip(XS, YS)) repItems(cons(X, XS)) -> cons(X, cons(X, repItems(XS))) ---------------------------------------- (6) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set ---------------------------------------- (7) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) take(0, XS) -> nil The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} take: {1, 2} nil: empty set Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = x_1 + x_2 POL(incr(x_1)) = x_1 POL(nil) = 0 POL(oddNs) = 1 POL(pairNs) = 1 POL(s(x_1)) = x_1 POL(take(x_1, x_2)) = 1 + x_1 + x_2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: take(0, XS) -> nil ---------------------------------------- (8) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} ---------------------------------------- (9) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) incr(cons(X, XS)) -> cons(s(X), incr(XS)) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set s: {1} Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = 1 + 2*x_1 POL(incr(x_1)) = 2*x_1 POL(oddNs) = 2 POL(pairNs) = 1 POL(s(x_1)) = x_1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: incr(cons(X, XS)) -> cons(s(X), incr(XS)) ---------------------------------------- (10) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set ---------------------------------------- (11) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) oddNs -> incr(pairNs) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = x_1 POL(incr(x_1)) = 2*x_1 POL(oddNs) = 1 POL(pairNs) = 0 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: oddNs -> incr(pairNs) ---------------------------------------- (12) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set ---------------------------------------- (13) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: pairNs -> cons(0, incr(oddNs)) The replacement map contains the following entries: pairNs: empty set cons: {1} 0: empty set incr: {1} oddNs: empty set Used ordering: Polynomial interpretation [POLO]: POL(0) = 0 POL(cons(x_1, x_2)) = x_1 + x_2 POL(incr(x_1)) = x_1 POL(oddNs) = 0 POL(pairNs) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: pairNs -> cons(0, incr(oddNs)) ---------------------------------------- (14) Obligation: Context-sensitive rewrite system: R is empty. ---------------------------------------- (15) RisEmptyProof (EQUIVALENT) The CSR R is empty. Hence, termination is trivially proven. ---------------------------------------- (16) YES