YES Termination w.r.t. Q proof of /home/cern_httpd/provide/research/cycsrs/examples/collection/aa-aba.srs

(0) Obligation:

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

a(a(x)) → a(b(a(x)))

Q is empty.

(1) RFCMatchBoundsTRSProof (EQUIVALENT transformation)

Termination of the TRS R could be shown with a Match Bound [MATCHBOUNDS1,MATCHBOUNDS2] of 1. This implies Q-termination of R.
The following rules were used to construct the certificate:

a(a(x)) → a(b(a(x)))

The certificate found is represented by the following graph.

The certificate consists of the following enumerated nodes:

3, 6, 13, 14, 19, 20

Node 3 is start node and node 6 is final node.

Those nodes are connected through the following edges:

  • 3 to 13 labelled a_1(0)
  • 6 to 6 labelled #_1(0)
  • 13 to 14 labelled b_1(0)
  • 14 to 6 labelled a_1(0)
  • 14 to 19 labelled a_1(1)
  • 19 to 20 labelled b_1(1)
  • 20 to 6 labelled a_1(1)
  • 20 to 19 labelled a_1(1)

(2) YES