3.53/1.74 YES 3.53/1.74 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 3.53/1.74 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.53/1.74 3.53/1.74 3.53/1.74 Termination w.r.t. Q of the given QTRS could be proven: 3.53/1.74 3.53/1.74 (0) QTRS 3.53/1.74 (1) DependencyPairsProof [EQUIVALENT, 0 ms] 3.53/1.74 (2) QDP 3.53/1.74 (3) DependencyGraphProof [EQUIVALENT, 0 ms] 3.53/1.74 (4) QDP 3.53/1.74 (5) UsableRulesProof [EQUIVALENT, 0 ms] 3.53/1.74 (6) QDP 3.53/1.74 (7) QReductionProof [EQUIVALENT, 0 ms] 3.53/1.74 (8) QDP 3.53/1.74 (9) QDPSizeChangeProof [EQUIVALENT, 1 ms] 3.53/1.74 (10) YES 3.53/1.74 3.53/1.74 3.53/1.74 ---------------------------------------- 3.53/1.74 3.53/1.74 (0) 3.53/1.74 Obligation: 3.53/1.74 Q restricted rewrite system: 3.53/1.74 The TRS R consists of the following rules: 3.53/1.74 3.53/1.74 f(0, 1, g(x, y), z) -> f(g(x, y), g(x, y), g(x, y), h(x)) 3.53/1.74 g(0, 1) -> 0 3.53/1.74 g(0, 1) -> 1 3.53/1.74 h(g(x, y)) -> h(x) 3.53/1.74 3.53/1.74 The set Q consists of the following terms: 3.53/1.74 3.53/1.74 f(0, 1, g(x0, x1), x2) 3.53/1.74 g(0, 1) 3.53/1.74 h(g(x0, x1)) 3.53/1.74 3.53/1.74 3.53/1.74 ---------------------------------------- 3.53/1.74 3.53/1.74 (1) DependencyPairsProof (EQUIVALENT) 3.53/1.74 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 3.53/1.74 ---------------------------------------- 3.53/1.75 3.53/1.75 (2) 3.53/1.75 Obligation: 3.53/1.75 Q DP problem: 3.53/1.75 The TRS P consists of the following rules: 3.53/1.75 3.53/1.75 F(0, 1, g(x, y), z) -> F(g(x, y), g(x, y), g(x, y), h(x)) 3.53/1.75 F(0, 1, g(x, y), z) -> H(x) 3.53/1.75 H(g(x, y)) -> H(x) 3.53/1.75 3.53/1.75 The TRS R consists of the following rules: 3.53/1.75 3.53/1.75 f(0, 1, g(x, y), z) -> f(g(x, y), g(x, y), g(x, y), h(x)) 3.53/1.75 g(0, 1) -> 0 3.53/1.75 g(0, 1) -> 1 3.53/1.75 h(g(x, y)) -> h(x) 3.53/1.75 3.53/1.75 The set Q consists of the following terms: 3.53/1.75 3.53/1.75 f(0, 1, g(x0, x1), x2) 3.53/1.75 g(0, 1) 3.53/1.75 h(g(x0, x1)) 3.53/1.75 3.53/1.75 We have to consider all minimal (P,Q,R)-chains. 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (3) DependencyGraphProof (EQUIVALENT) 3.53/1.75 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (4) 3.53/1.75 Obligation: 3.53/1.75 Q DP problem: 3.53/1.75 The TRS P consists of the following rules: 3.53/1.75 3.53/1.75 H(g(x, y)) -> H(x) 3.53/1.75 3.53/1.75 The TRS R consists of the following rules: 3.53/1.75 3.53/1.75 f(0, 1, g(x, y), z) -> f(g(x, y), g(x, y), g(x, y), h(x)) 3.53/1.75 g(0, 1) -> 0 3.53/1.75 g(0, 1) -> 1 3.53/1.75 h(g(x, y)) -> h(x) 3.53/1.75 3.53/1.75 The set Q consists of the following terms: 3.53/1.75 3.53/1.75 f(0, 1, g(x0, x1), x2) 3.53/1.75 g(0, 1) 3.53/1.75 h(g(x0, x1)) 3.53/1.75 3.53/1.75 We have to consider all minimal (P,Q,R)-chains. 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (5) UsableRulesProof (EQUIVALENT) 3.53/1.75 As all Q-normal forms are R-normal forms we are in the innermost case. Hence, by the usable rules processor [LPAR04] we can delete all non-usable rules [FROCOS05] from R. 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (6) 3.53/1.75 Obligation: 3.53/1.75 Q DP problem: 3.53/1.75 The TRS P consists of the following rules: 3.53/1.75 3.53/1.75 H(g(x, y)) -> H(x) 3.53/1.75 3.53/1.75 R is empty. 3.53/1.75 The set Q consists of the following terms: 3.53/1.75 3.53/1.75 f(0, 1, g(x0, x1), x2) 3.53/1.75 g(0, 1) 3.53/1.75 h(g(x0, x1)) 3.53/1.75 3.53/1.75 We have to consider all minimal (P,Q,R)-chains. 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (7) QReductionProof (EQUIVALENT) 3.53/1.75 We deleted the following terms from Q as each root-symbol of these terms does neither occur in P nor in R.[THIEMANN]. 3.53/1.75 3.53/1.75 f(0, 1, g(x0, x1), x2) 3.53/1.75 h(g(x0, x1)) 3.53/1.75 3.53/1.75 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (8) 3.53/1.75 Obligation: 3.53/1.75 Q DP problem: 3.53/1.75 The TRS P consists of the following rules: 3.53/1.75 3.53/1.75 H(g(x, y)) -> H(x) 3.53/1.75 3.53/1.75 R is empty. 3.53/1.75 The set Q consists of the following terms: 3.53/1.75 3.53/1.75 g(0, 1) 3.53/1.75 3.53/1.75 We have to consider all minimal (P,Q,R)-chains. 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (9) QDPSizeChangeProof (EQUIVALENT) 3.53/1.75 By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. 3.53/1.75 3.53/1.75 From the DPs we obtained the following set of size-change graphs: 3.53/1.75 *H(g(x, y)) -> H(x) 3.53/1.75 The graph contains the following edges 1 > 1 3.53/1.75 3.53/1.75 3.53/1.75 ---------------------------------------- 3.53/1.75 3.53/1.75 (10) 3.53/1.75 YES 3.53/1.77 EOF