39.76/10.93 YES 39.76/10.94 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 39.76/10.94 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 39.76/10.94 39.76/10.94 39.76/10.94 Termination w.r.t. Q of the given QTRS could be proven: 39.76/10.94 39.76/10.94 (0) QTRS 39.76/10.94 (1) QTRS Reverse [EQUIVALENT, 0 ms] 39.76/10.94 (2) QTRS 39.76/10.94 (3) DependencyPairsProof [EQUIVALENT, 1 ms] 39.76/10.94 (4) QDP 39.76/10.94 (5) QDPOrderProof [EQUIVALENT, 237 ms] 39.76/10.94 (6) QDP 39.76/10.94 (7) QDPOrderProof [EQUIVALENT, 206 ms] 39.76/10.94 (8) QDP 39.76/10.94 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 39.76/10.94 (10) TRUE 39.76/10.94 39.76/10.94 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (0) 39.76/10.94 Obligation: 39.76/10.94 Q restricted rewrite system: 39.76/10.94 The TRS R consists of the following rules: 39.76/10.94 39.76/10.94 a(a(x1)) -> a(b(c(x1))) 39.76/10.94 c(a(x1)) -> x1 39.76/10.94 c(b(x1)) -> a(a(c(x1))) 39.76/10.94 39.76/10.94 Q is empty. 39.76/10.94 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (1) QTRS Reverse (EQUIVALENT) 39.76/10.94 We applied the QTRS Reverse Processor [REVERSE]. 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (2) 39.76/10.94 Obligation: 39.76/10.94 Q restricted rewrite system: 39.76/10.94 The TRS R consists of the following rules: 39.76/10.94 39.76/10.94 a(a(x1)) -> c(b(a(x1))) 39.76/10.94 a(c(x1)) -> x1 39.76/10.94 b(c(x1)) -> c(a(a(x1))) 39.76/10.94 39.76/10.94 Q is empty. 39.76/10.94 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (3) DependencyPairsProof (EQUIVALENT) 39.76/10.94 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (4) 39.76/10.94 Obligation: 39.76/10.94 Q DP problem: 39.76/10.94 The TRS P consists of the following rules: 39.76/10.94 39.76/10.94 A(a(x1)) -> B(a(x1)) 39.76/10.94 B(c(x1)) -> A(a(x1)) 39.76/10.94 B(c(x1)) -> A(x1) 39.76/10.94 39.76/10.94 The TRS R consists of the following rules: 39.76/10.94 39.76/10.94 a(a(x1)) -> c(b(a(x1))) 39.76/10.94 a(c(x1)) -> x1 39.76/10.94 b(c(x1)) -> c(a(a(x1))) 39.76/10.94 39.76/10.94 Q is empty. 39.76/10.94 We have to consider all minimal (P,Q,R)-chains. 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (5) QDPOrderProof (EQUIVALENT) 39.76/10.94 We use the reduction pair processor [LPAR04,JAR06]. 39.76/10.94 39.76/10.94 39.76/10.94 The following pairs can be oriented strictly and are deleted. 39.76/10.94 39.76/10.94 B(c(x1)) -> A(x1) 39.76/10.94 The remaining pairs can at least be oriented weakly. 39.76/10.94 Used ordering: Matrix interpretation [MATRO] with arctic integers [ARCTIC,STERNAGEL_THIEMANN_RTA14]: 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(A(x_1)) = [[0A]] + [[-1A, -1A, -I]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(a(x_1)) = [[0A], [1A], [-1A]] + [[-1A, -1A, -1A], [-I, 1A, -1A], [-I, -1A, -I]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(B(x_1)) = [[0A]] + [[-1A, -1A, 1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(c(x_1)) = [[0A], [-1A], [0A]] + [[-1A, -1A, -1A], [1A, -1A, 1A], [-1A, -1A, -1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(b(x_1)) = [[0A], [-I], [-I]] + [[-I, -I, 2A], [-I, -I, 2A], [-I, -1A, 2A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 39.76/10.94 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 39.76/10.94 39.76/10.94 a(a(x1)) -> c(b(a(x1))) 39.76/10.94 a(c(x1)) -> x1 39.76/10.94 b(c(x1)) -> c(a(a(x1))) 39.76/10.94 39.76/10.94 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (6) 39.76/10.94 Obligation: 39.76/10.94 Q DP problem: 39.76/10.94 The TRS P consists of the following rules: 39.76/10.94 39.76/10.94 A(a(x1)) -> B(a(x1)) 39.76/10.94 B(c(x1)) -> A(a(x1)) 39.76/10.94 39.76/10.94 The TRS R consists of the following rules: 39.76/10.94 39.76/10.94 a(a(x1)) -> c(b(a(x1))) 39.76/10.94 a(c(x1)) -> x1 39.76/10.94 b(c(x1)) -> c(a(a(x1))) 39.76/10.94 39.76/10.94 Q is empty. 39.76/10.94 We have to consider all minimal (P,Q,R)-chains. 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (7) QDPOrderProof (EQUIVALENT) 39.76/10.94 We use the reduction pair processor [LPAR04,JAR06]. 39.76/10.94 39.76/10.94 39.76/10.94 The following pairs can be oriented strictly and are deleted. 39.76/10.94 39.76/10.94 B(c(x1)) -> A(a(x1)) 39.76/10.94 The remaining pairs can at least be oriented weakly. 39.76/10.94 Used ordering: Matrix interpretation [MATRO] with arctic integers [ARCTIC,STERNAGEL_THIEMANN_RTA14]: 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(A(x_1)) = [[0A]] + [[-I, -I, -1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(a(x_1)) = [[0A], [-I], [2A]] + [[-I, -I, -1A], [-1A, -1A, 1A], [-I, -1A, 1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(B(x_1)) = [[-I]] + [[1A, -I, -1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(c(x_1)) = [[1A], [0A], [-I]] + [[-1A, -1A, 0A], [-I, -I, -I], [1A, -1A, -1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 <<< 39.76/10.94 POL(b(x_1)) = [[-I], [-I], [-I]] + [[2A, -I, -I], [-1A, -I, -I], [1A, -I, -1A]] * x_1 39.76/10.94 >>> 39.76/10.94 39.76/10.94 39.76/10.94 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 39.76/10.94 39.76/10.94 a(a(x1)) -> c(b(a(x1))) 39.76/10.94 a(c(x1)) -> x1 39.76/10.94 b(c(x1)) -> c(a(a(x1))) 39.76/10.94 39.76/10.94 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (8) 39.76/10.94 Obligation: 39.76/10.94 Q DP problem: 39.76/10.94 The TRS P consists of the following rules: 39.76/10.94 39.76/10.94 A(a(x1)) -> B(a(x1)) 39.76/10.94 39.76/10.94 The TRS R consists of the following rules: 39.76/10.94 39.76/10.94 a(a(x1)) -> c(b(a(x1))) 39.76/10.94 a(c(x1)) -> x1 39.76/10.94 b(c(x1)) -> c(a(a(x1))) 39.76/10.94 39.76/10.94 Q is empty. 39.76/10.94 We have to consider all minimal (P,Q,R)-chains. 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (9) DependencyGraphProof (EQUIVALENT) 39.76/10.94 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 39.76/10.94 ---------------------------------------- 39.76/10.94 39.76/10.94 (10) 39.76/10.94 TRUE 40.10/11.02 EOF