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:

a1(a1(f2(x, y))) -> f2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
f2(a1(x), a1(y)) -> a1(f2(x, y))
f2(b1(x), b1(y)) -> b1(f2(x, y))

Q is empty.


QTRS
  ↳ DependencyPairsProof

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

a1(a1(f2(x, y))) -> f2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
f2(a1(x), a1(y)) -> a1(f2(x, y))
f2(b1(x), b1(y)) -> b1(f2(x, y))

Q is empty.

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

A1(a1(f2(x, y))) -> A1(y)
F2(a1(x), a1(y)) -> F2(x, y)
A1(a1(f2(x, y))) -> A1(b1(a1(y)))
A1(a1(f2(x, y))) -> A1(b1(a1(b1(a1(x)))))
A1(a1(f2(x, y))) -> A1(x)
F2(b1(x), b1(y)) -> F2(x, y)
F2(a1(x), a1(y)) -> A1(f2(x, y))
A1(a1(f2(x, y))) -> A1(b1(a1(b1(a1(y)))))
A1(a1(f2(x, y))) -> F2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
A1(a1(f2(x, y))) -> A1(b1(a1(x)))

The TRS R consists of the following rules:

a1(a1(f2(x, y))) -> f2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
f2(a1(x), a1(y)) -> a1(f2(x, y))
f2(b1(x), b1(y)) -> b1(f2(x, y))

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

↳ QTRS
  ↳ DependencyPairsProof
QDP
      ↳ DependencyGraphProof

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

A1(a1(f2(x, y))) -> A1(y)
F2(a1(x), a1(y)) -> F2(x, y)
A1(a1(f2(x, y))) -> A1(b1(a1(y)))
A1(a1(f2(x, y))) -> A1(b1(a1(b1(a1(x)))))
A1(a1(f2(x, y))) -> A1(x)
F2(b1(x), b1(y)) -> F2(x, y)
F2(a1(x), a1(y)) -> A1(f2(x, y))
A1(a1(f2(x, y))) -> A1(b1(a1(b1(a1(y)))))
A1(a1(f2(x, y))) -> F2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
A1(a1(f2(x, y))) -> A1(b1(a1(x)))

The TRS R consists of the following rules:

a1(a1(f2(x, y))) -> f2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
f2(a1(x), a1(y)) -> a1(f2(x, y))
f2(b1(x), b1(y)) -> b1(f2(x, y))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 1 SCC with 4 less nodes.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
QDP
          ↳ QDPAfsSolverProof

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

A1(a1(f2(x, y))) -> A1(y)
F2(a1(x), a1(y)) -> F2(x, y)
A1(a1(f2(x, y))) -> A1(x)
F2(b1(x), b1(y)) -> F2(x, y)
F2(a1(x), a1(y)) -> A1(f2(x, y))
A1(a1(f2(x, y))) -> F2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))

The TRS R consists of the following rules:

a1(a1(f2(x, y))) -> f2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
f2(a1(x), a1(y)) -> a1(f2(x, y))
f2(b1(x), b1(y)) -> b1(f2(x, y))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
By using an argument filtering and a montonic ordering, at least one Dependency Pair of this SCC can be strictly oriented.

A1(a1(f2(x, y))) -> A1(y)
A1(a1(f2(x, y))) -> A1(x)
Used argument filtering: A1(x1)  =  x1
a1(x1)  =  x1
f2(x1, x2)  =  f2(x1, x2)
F2(x1, x2)  =  F2(x1, x2)
b1(x1)  =  x1
Used ordering: Quasi Precedence: [f_2, F_2]


↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ QDP
          ↳ QDPAfsSolverProof
QDP

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

F2(a1(x), a1(y)) -> F2(x, y)
F2(b1(x), b1(y)) -> F2(x, y)
F2(a1(x), a1(y)) -> A1(f2(x, y))
A1(a1(f2(x, y))) -> F2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))

The TRS R consists of the following rules:

a1(a1(f2(x, y))) -> f2(a1(b1(a1(b1(a1(x))))), a1(b1(a1(b1(a1(y))))))
f2(a1(x), a1(y)) -> a1(f2(x, y))
f2(b1(x), b1(y)) -> b1(f2(x, y))

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