4.10/1.83 YES 4.10/1.84 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 4.10/1.84 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 4.10/1.84 4.10/1.84 4.10/1.84 Termination of the given ETRS could be proven: 4.10/1.84 4.10/1.84 (0) ETRS 4.10/1.84 (1) RRRPoloETRSProof [EQUIVALENT, 161 ms] 4.10/1.84 (2) ETRS 4.10/1.84 (3) RRRPoloETRSProof [EQUIVALENT, 41 ms] 4.10/1.84 (4) ETRS 4.10/1.84 (5) RisEmptyProof [EQUIVALENT, 0 ms] 4.10/1.84 (6) YES 4.10/1.84 4.10/1.84 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (0) 4.10/1.84 Obligation: 4.10/1.84 Equational rewrite system: 4.10/1.84 The TRS R consists of the following rules: 4.10/1.84 4.10/1.84 f(plus(a, a)) -> plus(f(a), f(a)) 4.10/1.84 plus(f(a), f(a)) -> plus(a, f(f(a))) 4.10/1.84 4.10/1.84 The set E consists of the following equations: 4.10/1.84 4.10/1.84 plus(x, y) == plus(y, x) 4.10/1.84 plus(plus(x, y), z) == plus(x, plus(y, z)) 4.10/1.84 4.10/1.84 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (1) RRRPoloETRSProof (EQUIVALENT) 4.10/1.84 The following E TRS is given: Equational rewrite system: 4.10/1.84 The TRS R consists of the following rules: 4.10/1.84 4.10/1.84 f(plus(a, a)) -> plus(f(a), f(a)) 4.10/1.84 plus(f(a), f(a)) -> plus(a, f(f(a))) 4.10/1.84 4.10/1.84 The set E consists of the following equations: 4.10/1.84 4.10/1.84 plus(x, y) == plus(y, x) 4.10/1.84 plus(plus(x, y), z) == plus(x, plus(y, z)) 4.10/1.84 4.10/1.84 The following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly by a polynomial ordering: 4.10/1.84 4.10/1.84 f(plus(a, a)) -> plus(f(a), f(a)) 4.10/1.84 Used ordering: 4.10/1.84 Polynomial interpretation [POLO]: 4.10/1.84 4.10/1.84 POL(a) = 0 4.10/1.84 POL(f(x_1)) = 3*x_1 4.10/1.84 POL(plus(x_1, x_2)) = 3 + x_1 + x_2 4.10/1.84 4.10/1.84 4.10/1.84 4.10/1.84 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (2) 4.10/1.84 Obligation: 4.10/1.84 Equational rewrite system: 4.10/1.84 The TRS R consists of the following rules: 4.10/1.84 4.10/1.84 plus(f(a), f(a)) -> plus(a, f(f(a))) 4.10/1.84 4.10/1.84 The set E consists of the following equations: 4.10/1.84 4.10/1.84 plus(x, y) == plus(y, x) 4.10/1.84 plus(plus(x, y), z) == plus(x, plus(y, z)) 4.10/1.84 4.10/1.84 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (3) RRRPoloETRSProof (EQUIVALENT) 4.10/1.84 The following E TRS is given: Equational rewrite system: 4.10/1.84 The TRS R consists of the following rules: 4.10/1.84 4.10/1.84 plus(f(a), f(a)) -> plus(a, f(f(a))) 4.10/1.84 4.10/1.84 The set E consists of the following equations: 4.10/1.84 4.10/1.84 plus(x, y) == plus(y, x) 4.10/1.84 plus(plus(x, y), z) == plus(x, plus(y, z)) 4.10/1.84 4.10/1.84 The following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly by a polynomial ordering: 4.10/1.84 4.10/1.84 plus(f(a), f(a)) -> plus(a, f(f(a))) 4.10/1.84 Used ordering: 4.10/1.84 Polynomial interpretation [POLO]: 4.10/1.84 4.10/1.84 POL(a) = 0 4.10/1.84 POL(f(x_1)) = 1 + x_1^2 4.10/1.84 POL(plus(x_1, x_2)) = 1 + 2*x_1 + 2*x_1*x_2 + 2*x_2 4.10/1.84 4.10/1.84 4.10/1.84 4.10/1.84 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (4) 4.10/1.84 Obligation: 4.10/1.84 Equational rewrite system: 4.10/1.84 R is empty. 4.10/1.84 The set E consists of the following equations: 4.10/1.84 4.10/1.84 plus(x, y) == plus(y, x) 4.10/1.84 plus(plus(x, y), z) == plus(x, plus(y, z)) 4.10/1.84 4.10/1.84 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (5) RisEmptyProof (EQUIVALENT) 4.10/1.84 The TRS R is empty. Hence, termination is trivially proven. 4.10/1.84 ---------------------------------------- 4.10/1.84 4.10/1.84 (6) 4.10/1.84 YES 4.19/1.88 EOF