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:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
Q is empty.
↳ QTRS
↳ Non-Overlap Check
Q restricted rewrite system:
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
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:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
Q DP problem:
The TRS P consists of the following rules:
MINUS2(s1(X), s1(Y)) -> P1(minus2(X, Y))
DIV2(s1(X), s1(Y)) -> MINUS2(X, Y)
DIV2(s1(X), s1(Y)) -> DIV2(minus2(X, Y), s1(Y))
MINUS2(s1(X), s1(Y)) -> MINUS2(X, Y)
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
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:
MINUS2(s1(X), s1(Y)) -> P1(minus2(X, Y))
DIV2(s1(X), s1(Y)) -> MINUS2(X, Y)
DIV2(s1(X), s1(Y)) -> DIV2(minus2(X, Y), s1(Y))
MINUS2(s1(X), s1(Y)) -> MINUS2(X, Y)
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 2 SCCs with 2 less nodes.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
MINUS2(s1(X), s1(Y)) -> MINUS2(X, Y)
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
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.
MINUS2(s1(X), s1(Y)) -> MINUS2(X, Y)
Used argument filtering: MINUS2(x1, x2) = x2
s1(x1) = s1(x1)
Used ordering: Quasi Precedence:
trivial
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ PisEmptyProof
↳ QDP
Q DP problem:
P is empty.
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
Q DP problem:
The TRS P consists of the following rules:
DIV2(s1(X), s1(Y)) -> DIV2(minus2(X, Y), s1(Y))
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
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.
DIV2(s1(X), s1(Y)) -> DIV2(minus2(X, Y), s1(Y))
Used argument filtering: DIV2(x1, x2) = x1
s1(x1) = s1(x1)
minus2(x1, x2) = x1
p1(x1) = x1
Used ordering: Quasi Precedence:
trivial
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ PisEmptyProof
Q DP problem:
P is empty.
The TRS R consists of the following rules:
minus2(X, 0) -> X
minus2(s1(X), s1(Y)) -> p1(minus2(X, Y))
p1(s1(X)) -> X
div2(0, s1(Y)) -> 0
div2(s1(X), s1(Y)) -> s1(div2(minus2(X, Y), s1(Y)))
The set Q consists of the following terms:
minus2(x0, 0)
minus2(s1(x0), s1(x1))
p1(s1(x0))
div2(0, s1(x0))
div2(s1(x0), s1(x1))
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.