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:

3(1(x1)) → 4(1(x1))
5(9(x1)) → 2(6(5(x1)))
3(5(x1)) → 8(9(7(x1)))
9(x1) → 3(2(3(x1)))
8(4(x1)) → 6(x1)
2(6(x1)) → 4(3(x1))
3(8(x1)) → 3(2(7(x1)))
9(x1) → 5(0(2(x1)))
8(8(4(x1))) → 1(9(x1))
7(1(x1)) → 6(9(x1))
3(9(x1)) → 9(3(x1))
7(5(x1)) → 1(0(x1))

Q is empty.


QTRS

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

3(1(x1)) → 4(1(x1))
5(9(x1)) → 2(6(5(x1)))
3(5(x1)) → 8(9(7(x1)))
9(x1) → 3(2(3(x1)))
8(4(x1)) → 6(x1)
2(6(x1)) → 4(3(x1))
3(8(x1)) → 3(2(7(x1)))
9(x1) → 5(0(2(x1)))
8(8(4(x1))) → 1(9(x1))
7(1(x1)) → 6(9(x1))
3(9(x1)) → 9(3(x1))
7(5(x1)) → 1(0(x1))

Q is empty.