Termination w.r.t. Q of the following Term Rewriting System could be proven:

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

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

Q is empty.


QTRS
  ↳ Non-Overlap Check

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

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

Q is empty.

The TRS is non-overlapping. Hence, we can switch to innermost.

↳ QTRS
  ↳ Non-Overlap Check
QTRS
      ↳ DependencyPairsProof

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

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

The set Q consists of the following terms:

f1(g1(x0))


Using Dependency Pairs [1,13] we result in the following initial DP problem:
Q DP problem:
The TRS P consists of the following rules:

F1(g1(x)) -> F1(a2(g1(g1(f1(x))), g1(f1(x))))
F1(g1(x)) -> F1(x)

The TRS R consists of the following rules:

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

The set Q consists of the following terms:

f1(g1(x0))

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

↳ QTRS
  ↳ Non-Overlap Check
    ↳ QTRS
      ↳ DependencyPairsProof
QDP
          ↳ DependencyGraphProof

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

F1(g1(x)) -> F1(a2(g1(g1(f1(x))), g1(f1(x))))
F1(g1(x)) -> F1(x)

The TRS R consists of the following rules:

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

The set Q consists of the following terms:

f1(g1(x0))

We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph [13,14,18] contains 1 SCC with 1 less node.

↳ QTRS
  ↳ Non-Overlap Check
    ↳ QTRS
      ↳ DependencyPairsProof
        ↳ QDP
          ↳ DependencyGraphProof
QDP
              ↳ QDPOrderProof

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

F1(g1(x)) -> F1(x)

The TRS R consists of the following rules:

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

The set Q consists of the following terms:

f1(g1(x0))

We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].


The following pairs can be strictly oriented and are deleted.


F1(g1(x)) -> F1(x)
The remaining pairs can at least by weakly be oriented.
none
Used ordering: Combined order from the following AFS and order.
F1(x1)  =  F1(x1)
g1(x1)  =  g1(x1)

Lexicographic Path Order [19].
Precedence:
g1 > F1


The following usable rules [14] were oriented: none



↳ QTRS
  ↳ Non-Overlap Check
    ↳ QTRS
      ↳ DependencyPairsProof
        ↳ QDP
          ↳ DependencyGraphProof
            ↳ QDP
              ↳ QDPOrderProof
QDP
                  ↳ PisEmptyProof

Q DP problem:
P is empty.
The TRS R consists of the following rules:

f1(g1(x)) -> f1(a2(g1(g1(f1(x))), g1(f1(x))))

The set Q consists of the following terms:

f1(g1(x0))

We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.