YES Termination w.r.t. Q proof of /home/cern_httpd/provide/research/cycsrs/tpdb/TPDB-d9b80194f163/SRS_Standard/Zantema_04/z040.srs

(0) Obligation:

Q restricted rewrite system:
The TRS R consists of the following rules:

a(a(b(a(a(b(a(x))))))) → a(b(a(a(b(a(a(a(b(x)))))))))

Q is empty.

(1) RFCMatchBoundsTRSProof (EQUIVALENT transformation)

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(a(b(a(a(b(a(x))))))) → a(b(a(a(b(a(a(a(b(x)))))))))

The certificate found is represented by the following graph.

The certificate consists of the following enumerated nodes:

3, 4, 6, 8, 10, 12, 14, 16, 17, 19, 41, 42, 43, 44, 45, 46, 47, 48, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 300, 301, 302, 303, 304, 305, 306, 307, 316, 317, 318, 319, 320, 321, 322, 323

Node 3 is start node and node 4 is final node.

Those nodes are connected through the following edges:

  • 3 to 6 labelled a_1(0)
  • 4 to 4 labelled #_1(0)
  • 6 to 8 labelled b_1(0)
  • 8 to 10 labelled a_1(0)
  • 8 to 276 labelled a_1(1)
  • 10 to 12 labelled a_1(0)
  • 12 to 14 labelled b_1(0)
  • 14 to 16 labelled a_1(0)
  • 14 to 284 labelled a_1(1)
  • 16 to 17 labelled a_1(0)
  • 16 to 41 labelled a_1(1)
  • 17 to 19 labelled a_1(0)
  • 19 to 4 labelled b_1(0)
  • 41 to 42 labelled b_1(1)
  • 42 to 43 labelled a_1(1)
  • 42 to 300 labelled a_1(2)
  • 43 to 44 labelled a_1(1)
  • 44 to 45 labelled b_1(1)
  • 45 to 46 labelled a_1(1)
  • 45 to 316 labelled a_1(2)
  • 46 to 47 labelled a_1(1)
  • 46 to 41 labelled a_1(1)
  • 47 to 48 labelled a_1(1)
  • 48 to 4 labelled b_1(1)
  • 276 to 277 labelled b_1(1)
  • 277 to 278 labelled a_1(1)
  • 278 to 279 labelled a_1(1)
  • 279 to 280 labelled b_1(1)
  • 280 to 281 labelled a_1(1)
  • 281 to 282 labelled a_1(1)
  • 282 to 283 labelled a_1(1)
  • 283 to 43 labelled b_1(1)
  • 283 to 300 labelled b_1(1)
  • 284 to 285 labelled b_1(1)
  • 285 to 286 labelled a_1(1)
  • 285 to 300 labelled a_1(2)
  • 286 to 287 labelled a_1(1)
  • 287 to 288 labelled b_1(1)
  • 288 to 289 labelled a_1(1)
  • 288 to 316 labelled a_1(2)
  • 289 to 290 labelled a_1(1)
  • 289 to 41 labelled a_1(1)
  • 290 to 291 labelled a_1(1)
  • 291 to 46 labelled b_1(1)
  • 291 to 316 labelled b_1(1)
  • 300 to 301 labelled b_1(2)
  • 301 to 302 labelled a_1(2)
  • 302 to 303 labelled a_1(2)
  • 303 to 304 labelled b_1(2)
  • 304 to 305 labelled a_1(2)
  • 305 to 306 labelled a_1(2)
  • 306 to 307 labelled a_1(2)
  • 307 to 43 labelled b_1(2)
  • 307 to 300 labelled b_1(2)
  • 316 to 317 labelled b_1(2)
  • 317 to 318 labelled a_1(2)
  • 317 to 300 labelled a_1(2)
  • 318 to 319 labelled a_1(2)
  • 319 to 320 labelled b_1(2)
  • 320 to 321 labelled a_1(2)
  • 320 to 316 labelled a_1(2)
  • 321 to 322 labelled a_1(2)
  • 321 to 41 labelled a_1(1)
  • 322 to 323 labelled a_1(2)
  • 323 to 46 labelled b_1(2)
  • 323 to 316 labelled b_1(2)

(2) YES