26.55/8.69 YES 26.55/8.71 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 26.55/8.71 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 26.55/8.71 26.55/8.71 26.55/8.71 Termination w.r.t. Q of the given QTRS could be proven: 26.55/8.71 26.55/8.71 (0) QTRS 26.55/8.71 (1) QTRS Reverse [EQUIVALENT, 0 ms] 26.55/8.71 (2) QTRS 26.55/8.71 (3) QTRSRRRProof [EQUIVALENT, 51 ms] 26.55/8.71 (4) QTRS 26.55/8.71 (5) DependencyPairsProof [EQUIVALENT, 35 ms] 26.55/8.71 (6) QDP 26.55/8.71 (7) MRRProof [EQUIVALENT, 90 ms] 26.55/8.71 (8) QDP 26.55/8.71 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 26.55/8.71 (10) QDP 26.55/8.71 (11) QDPOrderProof [EQUIVALENT, 949 ms] 26.55/8.71 (12) QDP 26.55/8.71 (13) DependencyGraphProof [EQUIVALENT, 0 ms] 26.55/8.71 (14) TRUE 26.55/8.71 26.55/8.71 26.55/8.71 ---------------------------------------- 26.55/8.71 26.55/8.71 (0) 26.55/8.71 Obligation: 26.55/8.71 Q restricted rewrite system: 26.55/8.71 The TRS R consists of the following rules: 26.55/8.71 26.55/8.71 r(e(x1)) -> w(r(x1)) 26.55/8.71 i(t(x1)) -> e(r(x1)) 26.55/8.71 e(w(x1)) -> r(i(x1)) 26.55/8.71 t(e(x1)) -> r(e(x1)) 26.55/8.71 w(r(x1)) -> i(t(x1)) 26.55/8.71 e(r(x1)) -> e(w(x1)) 26.55/8.71 r(i(t(e(r(x1))))) -> e(w(r(i(t(e(x1)))))) 26.55/8.71 26.55/8.71 Q is empty. 26.55/8.71 26.55/8.71 ---------------------------------------- 26.55/8.71 26.55/8.71 (1) QTRS Reverse (EQUIVALENT) 26.55/8.71 We applied the QTRS Reverse Processor [REVERSE]. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (2) 26.55/8.72 Obligation: 26.55/8.72 Q restricted rewrite system: 26.55/8.72 The TRS R consists of the following rules: 26.55/8.72 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 e(t(x1)) -> e(r(x1)) 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 r(e(x1)) -> w(e(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 Q is empty. 26.55/8.72 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (3) QTRSRRRProof (EQUIVALENT) 26.55/8.72 Used ordering: 26.55/8.72 Polynomial interpretation [POLO]: 26.55/8.72 26.55/8.72 POL(e(x_1)) = 1 + x_1 26.55/8.72 POL(i(x_1)) = x_1 26.55/8.72 POL(r(x_1)) = 2 + x_1 26.55/8.72 POL(t(x_1)) = 3 + x_1 26.55/8.72 POL(w(x_1)) = 1 + x_1 26.55/8.72 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 26.55/8.72 26.55/8.72 e(t(x1)) -> e(r(x1)) 26.55/8.72 r(e(x1)) -> w(e(x1)) 26.55/8.72 26.55/8.72 26.55/8.72 26.55/8.72 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (4) 26.55/8.72 Obligation: 26.55/8.72 Q restricted rewrite system: 26.55/8.72 The TRS R consists of the following rules: 26.55/8.72 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 Q is empty. 26.55/8.72 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (5) DependencyPairsProof (EQUIVALENT) 26.55/8.72 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (6) 26.55/8.72 Obligation: 26.55/8.72 Q DP problem: 26.55/8.72 The TRS P consists of the following rules: 26.55/8.72 26.55/8.72 E(r(x1)) -> R(w(x1)) 26.55/8.72 E(r(x1)) -> W(x1) 26.55/8.72 T(i(x1)) -> R(e(x1)) 26.55/8.72 T(i(x1)) -> E(x1) 26.55/8.72 W(e(x1)) -> R(x1) 26.55/8.72 R(w(x1)) -> T(i(x1)) 26.55/8.72 R(e(t(i(r(x1))))) -> E(t(i(r(w(e(x1)))))) 26.55/8.72 R(e(t(i(r(x1))))) -> T(i(r(w(e(x1))))) 26.55/8.72 R(e(t(i(r(x1))))) -> R(w(e(x1))) 26.55/8.72 R(e(t(i(r(x1))))) -> W(e(x1)) 26.55/8.72 R(e(t(i(r(x1))))) -> E(x1) 26.55/8.72 26.55/8.72 The TRS R consists of the following rules: 26.55/8.72 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 Q is empty. 26.55/8.72 We have to consider all minimal (P,Q,R)-chains. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (7) MRRProof (EQUIVALENT) 26.55/8.72 By using the rule removal processor [LPAR04] with the following ordering, at least one Dependency Pair or term rewrite system rule of this QDP problem can be strictly oriented. 26.55/8.72 26.55/8.72 Strictly oriented dependency pairs: 26.55/8.72 26.55/8.72 E(r(x1)) -> W(x1) 26.55/8.72 T(i(x1)) -> E(x1) 26.55/8.72 R(e(t(i(r(x1))))) -> T(i(r(w(e(x1))))) 26.55/8.72 R(e(t(i(r(x1))))) -> R(w(e(x1))) 26.55/8.72 R(e(t(i(r(x1))))) -> W(e(x1)) 26.55/8.72 R(e(t(i(r(x1))))) -> E(x1) 26.55/8.72 26.55/8.72 26.55/8.72 Used ordering: Polynomial interpretation [POLO]: 26.55/8.72 26.55/8.72 POL(E(x_1)) = 1 + x_1 26.55/8.72 POL(R(x_1)) = 2 + x_1 26.55/8.72 POL(T(x_1)) = 3 + x_1 26.55/8.72 POL(W(x_1)) = 1 + x_1 26.55/8.72 POL(e(x_1)) = 1 + x_1 26.55/8.72 POL(i(x_1)) = x_1 26.55/8.72 POL(r(x_1)) = 2 + x_1 26.55/8.72 POL(t(x_1)) = 3 + x_1 26.55/8.72 POL(w(x_1)) = 1 + x_1 26.55/8.72 26.55/8.72 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (8) 26.55/8.72 Obligation: 26.55/8.72 Q DP problem: 26.55/8.72 The TRS P consists of the following rules: 26.55/8.72 26.55/8.72 E(r(x1)) -> R(w(x1)) 26.55/8.72 T(i(x1)) -> R(e(x1)) 26.55/8.72 W(e(x1)) -> R(x1) 26.55/8.72 R(w(x1)) -> T(i(x1)) 26.55/8.72 R(e(t(i(r(x1))))) -> E(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 The TRS R consists of the following rules: 26.55/8.72 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 Q is empty. 26.55/8.72 We have to consider all minimal (P,Q,R)-chains. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (9) DependencyGraphProof (EQUIVALENT) 26.55/8.72 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 1 less node. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (10) 26.55/8.72 Obligation: 26.55/8.72 Q DP problem: 26.55/8.72 The TRS P consists of the following rules: 26.55/8.72 26.55/8.72 R(w(x1)) -> T(i(x1)) 26.55/8.72 T(i(x1)) -> R(e(x1)) 26.55/8.72 R(e(t(i(r(x1))))) -> E(t(i(r(w(e(x1)))))) 26.55/8.72 E(r(x1)) -> R(w(x1)) 26.55/8.72 26.55/8.72 The TRS R consists of the following rules: 26.55/8.72 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 Q is empty. 26.55/8.72 We have to consider all minimal (P,Q,R)-chains. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (11) QDPOrderProof (EQUIVALENT) 26.55/8.72 We use the reduction pair processor [LPAR04,JAR06]. 26.55/8.72 26.55/8.72 26.55/8.72 The following pairs can be oriented strictly and are deleted. 26.55/8.72 26.55/8.72 E(r(x1)) -> R(w(x1)) 26.55/8.72 The remaining pairs can at least be oriented weakly. 26.55/8.72 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(R(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(w(x_1)) = [[0A], [0A], [-I]] + [[0A, 1A, 0A], [-I, 0A, -I], [0A, 0A, 0A]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(T(x_1)) = [[-I]] + [[0A, -I, -I]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(i(x_1)) = [[0A], [-I], [0A]] + [[-I, 0A, -I], [0A, -I, -I], [0A, -I, 0A]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(e(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, 0A], [-I, 0A, -I], [0A, 0A, 0A]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(t(x_1)) = [[0A], [0A], [0A]] + [[0A, -I, -I], [1A, 0A, 0A], [0A, 0A, 0A]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(r(x_1)) = [[0A], [1A], [0A]] + [[-I, 0A, -I], [0A, 1A, 0A], [-I, 0A, 0A]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 <<< 26.55/8.72 POL(E(x_1)) = [[-I]] + [[0A, 0A, -I]] * x_1 26.55/8.72 >>> 26.55/8.72 26.55/8.72 26.55/8.72 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 26.55/8.72 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 26.55/8.72 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (12) 26.55/8.72 Obligation: 26.55/8.72 Q DP problem: 26.55/8.72 The TRS P consists of the following rules: 26.55/8.72 26.55/8.72 R(w(x1)) -> T(i(x1)) 26.55/8.72 T(i(x1)) -> R(e(x1)) 26.55/8.72 R(e(t(i(r(x1))))) -> E(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 The TRS R consists of the following rules: 26.55/8.72 26.55/8.72 e(r(x1)) -> r(w(x1)) 26.55/8.72 t(i(x1)) -> r(e(x1)) 26.55/8.72 w(e(x1)) -> i(r(x1)) 26.55/8.72 r(w(x1)) -> t(i(x1)) 26.55/8.72 r(e(t(i(r(x1))))) -> e(t(i(r(w(e(x1)))))) 26.55/8.72 26.55/8.72 Q is empty. 26.55/8.72 We have to consider all minimal (P,Q,R)-chains. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (13) DependencyGraphProof (EQUIVALENT) 26.55/8.72 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 3 less nodes. 26.55/8.72 ---------------------------------------- 26.55/8.72 26.55/8.72 (14) 26.55/8.72 TRUE 26.85/9.72 EOF