YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Termination w.r.t. Q of the given QTRS could be proven: (0) QTRS (1) QTRS Reverse [EQUIVALENT, 0 ms] (2) QTRS (3) Strip Symbols Proof [SOUND, 0 ms] (4) QTRS (5) RFCMatchBoundsTRSProof [EQUIVALENT, 5 ms] (6) YES ---------------------------------------- (0) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: a(b(b(a(a(b(a(x1))))))) -> a(b(a(a(b(b(a(a(b(x1))))))))) Q is empty. ---------------------------------------- (1) QTRS Reverse (EQUIVALENT) We applied the QTRS Reverse Processor [REVERSE]. ---------------------------------------- (2) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: a(b(a(a(b(b(a(x1))))))) -> b(a(a(b(b(a(a(b(a(x1))))))))) Q is empty. ---------------------------------------- (3) Strip Symbols Proof (SOUND) We were given the following TRS: a(b(a(a(b(b(a(x1))))))) -> b(a(a(b(b(a(a(b(a(x1))))))))) By stripping symbols from the only rule of the system, we obtained the following TRS [ENDRULLIS]: a(b(a(a(b(b(x)))))) -> b(a(a(b(b(a(a(b(x)))))))) ---------------------------------------- (4) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: a(b(a(a(b(b(x)))))) -> b(a(a(b(b(a(a(b(x)))))))) Q is empty. ---------------------------------------- (5) RFCMatchBoundsTRSProof (EQUIVALENT) Termination of the TRS R could be shown with a Match Bound [MATCHBOUNDS1,MATCHBOUNDS2] of 2. This implies Q-termination of R. The following rules were used to construct the certificate: a(b(a(a(b(b(x)))))) -> b(a(a(b(b(a(a(b(x)))))))) The certificate found is represented by the following graph. The certificate consists of the following enumerated nodes: 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422 Node 393 is start node and node 394 is final node. Those nodes are connected through the following edges: * 393 to 395 labelled b_1(0)* 394 to 394 labelled #_1(0)* 395 to 396 labelled a_1(0)* 396 to 397 labelled a_1(0)* 397 to 398 labelled b_1(0)* 398 to 399 labelled b_1(0)* 399 to 400 labelled a_1(0)* 399 to 409 labelled b_1(1)* 400 to 401 labelled a_1(0)* 400 to 402 labelled b_1(1)* 401 to 394 labelled b_1(0)* 402 to 403 labelled a_1(1)* 403 to 404 labelled a_1(1)* 404 to 405 labelled b_1(1)* 405 to 406 labelled b_1(1)* 406 to 407 labelled a_1(1)* 406 to 416 labelled b_1(2)* 407 to 408 labelled a_1(1)* 407 to 402 labelled b_1(1)* 408 to 394 labelled b_1(1)* 409 to 410 labelled a_1(1)* 410 to 411 labelled a_1(1)* 411 to 412 labelled b_1(1)* 412 to 413 labelled b_1(1)* 413 to 414 labelled a_1(1)* 413 to 416 labelled b_1(2)* 414 to 415 labelled a_1(1)* 414 to 402 labelled b_1(1)* 415 to 406 labelled b_1(1)* 416 to 417 labelled a_1(2)* 417 to 418 labelled a_1(2)* 418 to 419 labelled b_1(2)* 419 to 420 labelled b_1(2)* 420 to 421 labelled a_1(2)* 420 to 416 labelled b_1(2)* 421 to 422 labelled a_1(2)* 421 to 402 labelled b_1(1)* 422 to 406 labelled b_1(2) ---------------------------------------- (6) YES