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:
f(x, y) → g1(x, x, y)
f(x, y) → g1(y, x, x)
f(x, y) → g2(x, y, y)
f(x, y) → g2(y, y, x)
g1(x, x, y) → h(x, y)
g1(y, x, x) → h(x, y)
g2(x, y, y) → h(x, y)
g2(y, y, x) → h(x, y)
h(x, x) → x
Q is empty.
↳ QTRS
↳ Overlay + Local Confluence
Q restricted rewrite system:
The TRS R consists of the following rules:
f(x, y) → g1(x, x, y)
f(x, y) → g1(y, x, x)
f(x, y) → g2(x, y, y)
f(x, y) → g2(y, y, x)
g1(x, x, y) → h(x, y)
g1(y, x, x) → h(x, y)
g2(x, y, y) → h(x, y)
g2(y, y, x) → h(x, y)
h(x, x) → x
Q is empty.
The TRS is overlay and locally confluent. By [15] we can switch to innermost.
↳ QTRS
↳ Overlay + Local Confluence
↳ QTRS
↳ DependencyPairsProof
Q restricted rewrite system:
The TRS R consists of the following rules:
f(x, y) → g1(x, x, y)
f(x, y) → g1(y, x, x)
f(x, y) → g2(x, y, y)
f(x, y) → g2(y, y, x)
g1(x, x, y) → h(x, y)
g1(y, x, x) → h(x, y)
g2(x, y, y) → h(x, y)
g2(y, y, x) → h(x, y)
h(x, x) → x
The set Q consists of the following terms:
f(x0, x1)
g1(x0, x0, x1)
g1(x0, x1, x1)
g2(x0, x1, x1)
g2(x0, x0, x1)
h(x0, 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:
G2(x, y, y) → H(x, y)
F(x, y) → G1(y, x, x)
F(x, y) → G1(x, x, y)
G1(x, x, y) → H(x, y)
G1(y, x, x) → H(x, y)
F(x, y) → G2(y, y, x)
F(x, y) → G2(x, y, y)
G2(y, y, x) → H(x, y)
The TRS R consists of the following rules:
f(x, y) → g1(x, x, y)
f(x, y) → g1(y, x, x)
f(x, y) → g2(x, y, y)
f(x, y) → g2(y, y, x)
g1(x, x, y) → h(x, y)
g1(y, x, x) → h(x, y)
g2(x, y, y) → h(x, y)
g2(y, y, x) → h(x, y)
h(x, x) → x
The set Q consists of the following terms:
f(x0, x1)
g1(x0, x0, x1)
g1(x0, x1, x1)
g2(x0, x1, x1)
g2(x0, x0, x1)
h(x0, x0)
We have to consider all minimal (P,Q,R)-chains.
↳ QTRS
↳ Overlay + Local Confluence
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ EdgeDeletionProof
Q DP problem:
The TRS P consists of the following rules:
G2(x, y, y) → H(x, y)
F(x, y) → G1(y, x, x)
F(x, y) → G1(x, x, y)
G1(x, x, y) → H(x, y)
G1(y, x, x) → H(x, y)
F(x, y) → G2(y, y, x)
F(x, y) → G2(x, y, y)
G2(y, y, x) → H(x, y)
The TRS R consists of the following rules:
f(x, y) → g1(x, x, y)
f(x, y) → g1(y, x, x)
f(x, y) → g2(x, y, y)
f(x, y) → g2(y, y, x)
g1(x, x, y) → h(x, y)
g1(y, x, x) → h(x, y)
g2(x, y, y) → h(x, y)
g2(y, y, x) → h(x, y)
h(x, x) → x
The set Q consists of the following terms:
f(x0, x1)
g1(x0, x0, x1)
g1(x0, x1, x1)
g2(x0, x1, x1)
g2(x0, x0, x1)
h(x0, x0)
We have to consider all minimal (P,Q,R)-chains.
We deleted some edges using various graph approximations
↳ QTRS
↳ Overlay + Local Confluence
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ EdgeDeletionProof
↳ QDP
↳ DependencyGraphProof
Q DP problem:
The TRS P consists of the following rules:
G2(x, y, y) → H(x, y)
F(x, y) → G1(x, x, y)
F(x, y) → G1(y, x, x)
G1(x, x, y) → H(x, y)
G1(y, x, x) → H(x, y)
F(x, y) → G2(x, y, y)
F(x, y) → G2(y, y, x)
G2(y, y, x) → H(x, y)
The TRS R consists of the following rules:
f(x, y) → g1(x, x, y)
f(x, y) → g1(y, x, x)
f(x, y) → g2(x, y, y)
f(x, y) → g2(y, y, x)
g1(x, x, y) → h(x, y)
g1(y, x, x) → h(x, y)
g2(x, y, y) → h(x, y)
g2(y, y, x) → h(x, y)
h(x, x) → x
The set Q consists of the following terms:
f(x0, x1)
g1(x0, x0, x1)
g1(x0, x1, x1)
g2(x0, x1, x1)
g2(x0, x0, x1)
h(x0, x0)
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph [13,14,18] contains 0 SCCs with 8 less nodes.