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:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
Q is empty.
↳ QTRS
↳ Non-Overlap Check
Q restricted rewrite system:
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
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:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, x1))
Q DP problem:
The TRS P consists of the following rules:
PURGE1(add2(N, X)) -> RM2(N, X)
PURGE1(add2(N, X)) -> PURGE1(rm2(N, X))
EQ2(s1(X), s1(Y)) -> EQ2(X, Y)
IFRM3(true, N, add2(M, X)) -> RM2(N, X)
IFRM3(false, N, add2(M, X)) -> RM2(N, X)
RM2(N, add2(M, X)) -> EQ2(N, M)
RM2(N, add2(M, X)) -> IFRM3(eq2(N, M), N, add2(M, X))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, 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:
PURGE1(add2(N, X)) -> RM2(N, X)
PURGE1(add2(N, X)) -> PURGE1(rm2(N, X))
EQ2(s1(X), s1(Y)) -> EQ2(X, Y)
IFRM3(true, N, add2(M, X)) -> RM2(N, X)
IFRM3(false, N, add2(M, X)) -> RM2(N, X)
RM2(N, add2(M, X)) -> EQ2(N, M)
RM2(N, add2(M, X)) -> IFRM3(eq2(N, M), N, add2(M, X))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 3 SCCs with 2 less nodes.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
EQ2(s1(X), s1(Y)) -> EQ2(X, Y)
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, 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.
EQ2(s1(X), s1(Y)) -> EQ2(X, Y)
Used argument filtering: EQ2(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
↳ QDP
Q DP problem:
P is empty.
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, 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
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
IFRM3(true, N, add2(M, X)) -> RM2(N, X)
IFRM3(false, N, add2(M, X)) -> RM2(N, X)
RM2(N, add2(M, X)) -> IFRM3(eq2(N, M), N, add2(M, X))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, 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.
IFRM3(true, N, add2(M, X)) -> RM2(N, X)
IFRM3(false, N, add2(M, X)) -> RM2(N, X)
Used argument filtering: IFRM3(x1, x2, x3) = x3
add2(x1, x2) = add1(x2)
RM2(x1, x2) = x2
Used ordering: Quasi Precedence:
trivial
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ DependencyGraphProof
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
RM2(N, add2(M, X)) -> IFRM3(eq2(N, M), N, add2(M, X))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 0 SCCs with 1 less node.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
Q DP problem:
The TRS P consists of the following rules:
PURGE1(add2(N, X)) -> PURGE1(rm2(N, X))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, 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.
PURGE1(add2(N, X)) -> PURGE1(rm2(N, X))
Used argument filtering: PURGE1(x1) = x1
add2(x1, x2) = add1(x2)
rm2(x1, x2) = x2
nil = nil
ifrm3(x1, x2, x3) = x3
Used ordering: Quasi Precedence:
trivial
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ PisEmptyProof
Q DP problem:
P is empty.
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(X)) -> false
eq2(s1(X), 0) -> false
eq2(s1(X), s1(Y)) -> eq2(X, Y)
rm2(N, nil) -> nil
rm2(N, add2(M, X)) -> ifrm3(eq2(N, M), N, add2(M, X))
ifrm3(true, N, add2(M, X)) -> rm2(N, X)
ifrm3(false, N, add2(M, X)) -> add2(M, rm2(N, X))
purge1(nil) -> nil
purge1(add2(N, X)) -> add2(N, purge1(rm2(N, X)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
rm2(x0, nil)
rm2(x0, add2(x1, x2))
ifrm3(true, x0, add2(x1, x2))
ifrm3(false, x0, add2(x1, x2))
purge1(nil)
purge1(add2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.