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:
a__app2(nil, YS) -> mark1(YS)
a__app2(cons2(X, XS), YS) -> cons2(mark1(X), app2(XS, YS))
a__from1(X) -> cons2(mark1(X), from1(s1(X)))
a__zWadr2(nil, YS) -> nil
a__zWadr2(XS, nil) -> nil
a__zWadr2(cons2(X, XS), cons2(Y, YS)) -> cons2(a__app2(mark1(Y), cons2(mark1(X), nil)), zWadr2(XS, YS))
a__prefix1(L) -> cons2(nil, zWadr2(L, prefix1(L)))
mark1(app2(X1, X2)) -> a__app2(mark1(X1), mark1(X2))
mark1(from1(X)) -> a__from1(mark1(X))
mark1(zWadr2(X1, X2)) -> a__zWadr2(mark1(X1), mark1(X2))
mark1(prefix1(X)) -> a__prefix1(mark1(X))
mark1(nil) -> nil
mark1(cons2(X1, X2)) -> cons2(mark1(X1), X2)
mark1(s1(X)) -> s1(mark1(X))
a__app2(X1, X2) -> app2(X1, X2)
a__from1(X) -> from1(X)
a__zWadr2(X1, X2) -> zWadr2(X1, X2)
a__prefix1(X) -> prefix1(X)
Q is empty.
↳ QTRS
↳ DependencyPairsProof
Q restricted rewrite system:
The TRS R consists of the following rules:
a__app2(nil, YS) -> mark1(YS)
a__app2(cons2(X, XS), YS) -> cons2(mark1(X), app2(XS, YS))
a__from1(X) -> cons2(mark1(X), from1(s1(X)))
a__zWadr2(nil, YS) -> nil
a__zWadr2(XS, nil) -> nil
a__zWadr2(cons2(X, XS), cons2(Y, YS)) -> cons2(a__app2(mark1(Y), cons2(mark1(X), nil)), zWadr2(XS, YS))
a__prefix1(L) -> cons2(nil, zWadr2(L, prefix1(L)))
mark1(app2(X1, X2)) -> a__app2(mark1(X1), mark1(X2))
mark1(from1(X)) -> a__from1(mark1(X))
mark1(zWadr2(X1, X2)) -> a__zWadr2(mark1(X1), mark1(X2))
mark1(prefix1(X)) -> a__prefix1(mark1(X))
mark1(nil) -> nil
mark1(cons2(X1, X2)) -> cons2(mark1(X1), X2)
mark1(s1(X)) -> s1(mark1(X))
a__app2(X1, X2) -> app2(X1, X2)
a__from1(X) -> from1(X)
a__zWadr2(X1, X2) -> zWadr2(X1, X2)
a__prefix1(X) -> prefix1(X)
Q is empty.
Q DP problem:
The TRS P consists of the following rules:
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> MARK1(X)
MARK1(app2(X1, X2)) -> A__APP2(mark1(X1), mark1(X2))
MARK1(prefix1(X)) -> MARK1(X)
MARK1(zWadr2(X1, X2)) -> MARK1(X1)
A__APP2(nil, YS) -> MARK1(YS)
MARK1(zWadr2(X1, X2)) -> MARK1(X2)
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> MARK1(Y)
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> A__APP2(mark1(Y), cons2(mark1(X), nil))
MARK1(app2(X1, X2)) -> MARK1(X1)
MARK1(s1(X)) -> MARK1(X)
MARK1(prefix1(X)) -> A__PREFIX1(mark1(X))
MARK1(zWadr2(X1, X2)) -> A__ZWADR2(mark1(X1), mark1(X2))
MARK1(from1(X)) -> MARK1(X)
A__APP2(cons2(X, XS), YS) -> MARK1(X)
MARK1(from1(X)) -> A__FROM1(mark1(X))
MARK1(cons2(X1, X2)) -> MARK1(X1)
A__FROM1(X) -> MARK1(X)
MARK1(app2(X1, X2)) -> MARK1(X2)
The TRS R consists of the following rules:
a__app2(nil, YS) -> mark1(YS)
a__app2(cons2(X, XS), YS) -> cons2(mark1(X), app2(XS, YS))
a__from1(X) -> cons2(mark1(X), from1(s1(X)))
a__zWadr2(nil, YS) -> nil
a__zWadr2(XS, nil) -> nil
a__zWadr2(cons2(X, XS), cons2(Y, YS)) -> cons2(a__app2(mark1(Y), cons2(mark1(X), nil)), zWadr2(XS, YS))
a__prefix1(L) -> cons2(nil, zWadr2(L, prefix1(L)))
mark1(app2(X1, X2)) -> a__app2(mark1(X1), mark1(X2))
mark1(from1(X)) -> a__from1(mark1(X))
mark1(zWadr2(X1, X2)) -> a__zWadr2(mark1(X1), mark1(X2))
mark1(prefix1(X)) -> a__prefix1(mark1(X))
mark1(nil) -> nil
mark1(cons2(X1, X2)) -> cons2(mark1(X1), X2)
mark1(s1(X)) -> s1(mark1(X))
a__app2(X1, X2) -> app2(X1, X2)
a__from1(X) -> from1(X)
a__zWadr2(X1, X2) -> zWadr2(X1, X2)
a__prefix1(X) -> prefix1(X)
Q is empty.
We have to consider all minimal (P,Q,R)-chains.
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
Q DP problem:
The TRS P consists of the following rules:
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> MARK1(X)
MARK1(app2(X1, X2)) -> A__APP2(mark1(X1), mark1(X2))
MARK1(prefix1(X)) -> MARK1(X)
MARK1(zWadr2(X1, X2)) -> MARK1(X1)
A__APP2(nil, YS) -> MARK1(YS)
MARK1(zWadr2(X1, X2)) -> MARK1(X2)
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> MARK1(Y)
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> A__APP2(mark1(Y), cons2(mark1(X), nil))
MARK1(app2(X1, X2)) -> MARK1(X1)
MARK1(s1(X)) -> MARK1(X)
MARK1(prefix1(X)) -> A__PREFIX1(mark1(X))
MARK1(zWadr2(X1, X2)) -> A__ZWADR2(mark1(X1), mark1(X2))
MARK1(from1(X)) -> MARK1(X)
A__APP2(cons2(X, XS), YS) -> MARK1(X)
MARK1(from1(X)) -> A__FROM1(mark1(X))
MARK1(cons2(X1, X2)) -> MARK1(X1)
A__FROM1(X) -> MARK1(X)
MARK1(app2(X1, X2)) -> MARK1(X2)
The TRS R consists of the following rules:
a__app2(nil, YS) -> mark1(YS)
a__app2(cons2(X, XS), YS) -> cons2(mark1(X), app2(XS, YS))
a__from1(X) -> cons2(mark1(X), from1(s1(X)))
a__zWadr2(nil, YS) -> nil
a__zWadr2(XS, nil) -> nil
a__zWadr2(cons2(X, XS), cons2(Y, YS)) -> cons2(a__app2(mark1(Y), cons2(mark1(X), nil)), zWadr2(XS, YS))
a__prefix1(L) -> cons2(nil, zWadr2(L, prefix1(L)))
mark1(app2(X1, X2)) -> a__app2(mark1(X1), mark1(X2))
mark1(from1(X)) -> a__from1(mark1(X))
mark1(zWadr2(X1, X2)) -> a__zWadr2(mark1(X1), mark1(X2))
mark1(prefix1(X)) -> a__prefix1(mark1(X))
mark1(nil) -> nil
mark1(cons2(X1, X2)) -> cons2(mark1(X1), X2)
mark1(s1(X)) -> s1(mark1(X))
a__app2(X1, X2) -> app2(X1, X2)
a__from1(X) -> from1(X)
a__zWadr2(X1, X2) -> zWadr2(X1, X2)
a__prefix1(X) -> prefix1(X)
Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 1 SCC with 1 less node.
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> MARK1(X)
MARK1(app2(X1, X2)) -> A__APP2(mark1(X1), mark1(X2))
MARK1(zWadr2(X1, X2)) -> MARK1(X1)
MARK1(prefix1(X)) -> MARK1(X)
A__APP2(nil, YS) -> MARK1(YS)
MARK1(zWadr2(X1, X2)) -> MARK1(X2)
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> MARK1(Y)
A__ZWADR2(cons2(X, XS), cons2(Y, YS)) -> A__APP2(mark1(Y), cons2(mark1(X), nil))
MARK1(app2(X1, X2)) -> MARK1(X1)
MARK1(s1(X)) -> MARK1(X)
MARK1(zWadr2(X1, X2)) -> A__ZWADR2(mark1(X1), mark1(X2))
MARK1(from1(X)) -> MARK1(X)
MARK1(from1(X)) -> A__FROM1(mark1(X))
A__APP2(cons2(X, XS), YS) -> MARK1(X)
MARK1(cons2(X1, X2)) -> MARK1(X1)
A__FROM1(X) -> MARK1(X)
MARK1(app2(X1, X2)) -> MARK1(X2)
The TRS R consists of the following rules:
a__app2(nil, YS) -> mark1(YS)
a__app2(cons2(X, XS), YS) -> cons2(mark1(X), app2(XS, YS))
a__from1(X) -> cons2(mark1(X), from1(s1(X)))
a__zWadr2(nil, YS) -> nil
a__zWadr2(XS, nil) -> nil
a__zWadr2(cons2(X, XS), cons2(Y, YS)) -> cons2(a__app2(mark1(Y), cons2(mark1(X), nil)), zWadr2(XS, YS))
a__prefix1(L) -> cons2(nil, zWadr2(L, prefix1(L)))
mark1(app2(X1, X2)) -> a__app2(mark1(X1), mark1(X2))
mark1(from1(X)) -> a__from1(mark1(X))
mark1(zWadr2(X1, X2)) -> a__zWadr2(mark1(X1), mark1(X2))
mark1(prefix1(X)) -> a__prefix1(mark1(X))
mark1(nil) -> nil
mark1(cons2(X1, X2)) -> cons2(mark1(X1), X2)
mark1(s1(X)) -> s1(mark1(X))
a__app2(X1, X2) -> app2(X1, X2)
a__from1(X) -> from1(X)
a__zWadr2(X1, X2) -> zWadr2(X1, X2)
a__prefix1(X) -> prefix1(X)
Q is empty.
We have to consider all minimal (P,Q,R)-chains.