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:

f1g1
f1g2
f2g1
f2g2
g1h1
g1h2
g2h1
g2h2
h1i
h2i
e1(h1, h2, x, y, z) → e2(x, x, y, z, z)
e1(x1, x1, x, y, z) → e5(x1, x, y, z)
e2(f1, x, y, z, f2) → e3(x, y, x, y, y, z, y, z, x, y, z)
e2(x, x, y, z, z) → e6(x, y, z)
e2(i, x, y, z, i) → e6(x, y, z)
e3(x1, x1, x2, x2, x3, x3, x4, x4, x, y, z) → e4(x1, x1, x2, x2, x3, x3, x4, x4, x, y, z)
e3(x, y, x, y, y, z, y, z, x, y, z) → e6(x, y, z)
e4(g1, x1, g2, x1, g1, x1, g2, x1, x, y, z) → e1(x1, x1, x, y, z)
e4(i, x1, i, x1, i, x1, i, x1, x, y, z) → e5(x1, x, y, z)
e4(x, x, x, x, x, x, x, x, x, x, x) → e6(x, x, x)
e5(i, x, y, z) → e6(x, y, z)

Q is empty.


QTRS

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

f1g1
f1g2
f2g1
f2g2
g1h1
g1h2
g2h1
g2h2
h1i
h2i
e1(h1, h2, x, y, z) → e2(x, x, y, z, z)
e1(x1, x1, x, y, z) → e5(x1, x, y, z)
e2(f1, x, y, z, f2) → e3(x, y, x, y, y, z, y, z, x, y, z)
e2(x, x, y, z, z) → e6(x, y, z)
e2(i, x, y, z, i) → e6(x, y, z)
e3(x1, x1, x2, x2, x3, x3, x4, x4, x, y, z) → e4(x1, x1, x2, x2, x3, x3, x4, x4, x, y, z)
e3(x, y, x, y, y, z, y, z, x, y, z) → e6(x, y, z)
e4(g1, x1, g2, x1, g1, x1, g2, x1, x, y, z) → e1(x1, x1, x, y, z)
e4(i, x1, i, x1, i, x1, i, x1, x, y, z) → e5(x1, x, y, z)
e4(x, x, x, x, x, x, x, x, x, x, x) → e6(x, x, x)
e5(i, x, y, z) → e6(x, y, z)

Q is empty.