YES Termination w.r.t. Q proof of /home/cern_httpd/provide/research/cycsrs/tpdb/TPDB-d9b80194f163/SRS_Standard/Zantema_04/z035.srs

(0) Obligation:

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

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

Q is empty.

(1) QTRS Reverse (EQUIVALENT transformation)

We applied the QTRS Reverse Processor [REVERSE].

(2) Obligation:

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

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

Q is empty.

(3) Strip Symbols Proof (SOUND transformation)

We were given the following TRS:

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

By stripping symbols from the only rule of the system, we obtained the following TRS [ENDRULLIS]:

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

(4) Obligation:

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

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

Q is empty.

(5) 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:

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

The certificate found is represented by the following graph.

The certificate consists of the following enumerated nodes:

1, 2, 9, 10, 11, 12, 13, 14, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59

Node 1 is start node and node 2 is final node.

Those nodes are connected through the following edges:

  • 1 to 9 labelled a_1(0)
  • 2 to 2 labelled #_1(0)
  • 9 to 10 labelled b_1(0)
  • 10 to 11 labelled b_1(0)
  • 11 to 12 labelled a_1(0)
  • 12 to 13 labelled a_1(0)
  • 13 to 14 labelled b_1(0)
  • 13 to 48 labelled a_1(1)
  • 14 to 2 labelled b_1(0)
  • 14 to 42 labelled a_1(1)
  • 42 to 43 labelled b_1(1)
  • 43 to 44 labelled b_1(1)
  • 44 to 45 labelled a_1(1)
  • 45 to 46 labelled a_1(1)
  • 46 to 47 labelled b_1(1)
  • 46 to 54 labelled a_1(2)
  • 47 to 2 labelled b_1(1)
  • 47 to 42 labelled a_1(1)
  • 48 to 49 labelled b_1(1)
  • 49 to 50 labelled b_1(1)
  • 50 to 51 labelled a_1(1)
  • 51 to 52 labelled a_1(1)
  • 52 to 53 labelled b_1(1)
  • 52 to 54 labelled a_1(2)
  • 53 to 45 labelled b_1(1)
  • 53 to 42 labelled a_1(1)
  • 54 to 55 labelled b_1(2)
  • 55 to 56 labelled b_1(2)
  • 56 to 57 labelled a_1(2)
  • 57 to 58 labelled a_1(2)
  • 58 to 59 labelled b_1(2)
  • 58 to 54 labelled a_1(2)
  • 59 to 45 labelled b_1(2)
  • 59 to 42 labelled a_1(1)

(6) YES