Termination w.r.t. Q of the following Term Rewriting System could not be shown:

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

a(x1) → x1
a(a(b(a(x1)))) → b(b(a(a(a(x1)))))
b(x1) → a(x1)

Q is empty.


QTRS
  ↳ DependencyPairsProof

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

a(x1) → x1
a(a(b(a(x1)))) → b(b(a(a(a(x1)))))
b(x1) → a(x1)

Q is empty.

Using Dependency Pairs [1,15] we result in the following initial DP problem:
Q DP problem:
The TRS P consists of the following rules:

A(a(b(a(x1)))) → A(a(a(x1)))
A(a(b(a(x1)))) → A(a(x1))
A(a(b(a(x1)))) → B(a(a(a(x1))))
A(a(b(a(x1)))) → B(b(a(a(a(x1)))))
B(x1) → A(x1)

The TRS R consists of the following rules:

a(x1) → x1
a(a(b(a(x1)))) → b(b(a(a(a(x1)))))
b(x1) → a(x1)

Q is empty.
We have to consider all minimal (P,Q,R)-chains.

↳ QTRS
  ↳ DependencyPairsProof
QDP

Q DP problem:
The TRS P consists of the following rules:

A(a(b(a(x1)))) → A(a(a(x1)))
A(a(b(a(x1)))) → A(a(x1))
A(a(b(a(x1)))) → B(a(a(a(x1))))
A(a(b(a(x1)))) → B(b(a(a(a(x1)))))
B(x1) → A(x1)

The TRS R consists of the following rules:

a(x1) → x1
a(a(b(a(x1)))) → b(b(a(a(a(x1)))))
b(x1) → a(x1)

Q is empty.
We have to consider all minimal (P,Q,R)-chains.