MAYBE Termination Proof

Termination Proof

by ttt2 (version ttt2 1.15)

Input

The rewrite relation of the following TRS is considered.

begin(end(x0)) → rewrite(end(x0))
begin(a(x0)) → rotate(cut(Ca(guess(x0))))
begin(b(x0)) → rotate(cut(Cb(guess(x0))))
begin(r(x0)) → rotate(cut(Cr(guess(x0))))
begin(d(x0)) → rotate(cut(Cd(guess(x0))))
guess(a(x0)) → Ca(guess(x0))
guess(b(x0)) → Cb(guess(x0))
guess(r(x0)) → Cr(guess(x0))
guess(d(x0)) → Cd(guess(x0))
guess(a(x0)) → moveleft(Ba(wait(x0)))
guess(b(x0)) → moveleft(Bb(wait(x0)))
guess(r(x0)) → moveleft(Br(wait(x0)))
guess(d(x0)) → moveleft(Bd(wait(x0)))
guess(end(x0)) → finish(end(x0))
Ca(moveleft(Ba(x0))) → moveleft(Ba(Aa(x0)))
Cb(moveleft(Ba(x0))) → moveleft(Ba(Ab(x0)))
Cr(moveleft(Ba(x0))) → moveleft(Ba(Ar(x0)))
Cd(moveleft(Ba(x0))) → moveleft(Ba(Ad(x0)))
Ca(moveleft(Bb(x0))) → moveleft(Bb(Aa(x0)))
Cb(moveleft(Bb(x0))) → moveleft(Bb(Ab(x0)))
Cr(moveleft(Bb(x0))) → moveleft(Bb(Ar(x0)))
Cd(moveleft(Bb(x0))) → moveleft(Bb(Ad(x0)))
Ca(moveleft(Br(x0))) → moveleft(Br(Aa(x0)))
Cb(moveleft(Br(x0))) → moveleft(Br(Ab(x0)))
Cr(moveleft(Br(x0))) → moveleft(Br(Ar(x0)))
Cd(moveleft(Br(x0))) → moveleft(Br(Ad(x0)))
Ca(moveleft(Bd(x0))) → moveleft(Bd(Aa(x0)))
Cb(moveleft(Bd(x0))) → moveleft(Bd(Ab(x0)))
Cr(moveleft(Bd(x0))) → moveleft(Bd(Ar(x0)))
Cd(moveleft(Bd(x0))) → moveleft(Bd(Ad(x0)))
cut(moveleft(Ba(x0))) → Da(cut(goright(x0)))
cut(moveleft(Bb(x0))) → Db(cut(goright(x0)))
cut(moveleft(Br(x0))) → Dr(cut(goright(x0)))
cut(moveleft(Bd(x0))) → Dd(cut(goright(x0)))
goright(Aa(x0)) → Ca(goright(x0))
goright(Ab(x0)) → Cb(goright(x0))
goright(Ar(x0)) → Cr(goright(x0))
goright(Ad(x0)) → Cd(goright(x0))
goright(wait(a(x0))) → moveleft(Ba(wait(x0)))
goright(wait(b(x0))) → moveleft(Bb(wait(x0)))
goright(wait(r(x0))) → moveleft(Br(wait(x0)))
goright(wait(d(x0))) → moveleft(Bd(wait(x0)))
goright(wait(end(x0))) → finish(end(x0))
Ca(finish(x0)) → finish(a(x0))
Cb(finish(x0)) → finish(b(x0))
Cr(finish(x0)) → finish(r(x0))
Cd(finish(x0)) → finish(d(x0))
cut(finish(x0)) → finish2(x0)
Da(finish2(x0)) → finish2(a(x0))
Db(finish2(x0)) → finish2(b(x0))
Dr(finish2(x0)) → finish2(r(x0))
Dd(finish2(x0)) → finish2(d(x0))
rotate(finish2(x0)) → rewrite(x0)
rewrite(a(b(x0))) → begin(b(r(x0)))
rewrite(r(a(x0))) → begin(d(r(x0)))
rewrite(r(x0)) → begin(d(x0))
rewrite(d(a(x0))) → begin(a(a(d(x0))))
rewrite(d(x0)) → begin(a(x0))

Proof

1 Termination Assumption

We assume termination of the following TRS
begin(end(x0)) → rewrite(end(x0))
begin(a(x0)) → rotate(cut(Ca(guess(x0))))
begin(b(x0)) → rotate(cut(Cb(guess(x0))))
begin(r(x0)) → rotate(cut(Cr(guess(x0))))
begin(d(x0)) → rotate(cut(Cd(guess(x0))))
guess(a(x0)) → Ca(guess(x0))
guess(b(x0)) → Cb(guess(x0))
guess(r(x0)) → Cr(guess(x0))
guess(d(x0)) → Cd(guess(x0))
guess(a(x0)) → moveleft(Ba(wait(x0)))
guess(b(x0)) → moveleft(Bb(wait(x0)))
guess(r(x0)) → moveleft(Br(wait(x0)))
guess(d(x0)) → moveleft(Bd(wait(x0)))
guess(end(x0)) → finish(end(x0))
Ca(moveleft(Ba(x0))) → moveleft(Ba(Aa(x0)))
Cb(moveleft(Ba(x0))) → moveleft(Ba(Ab(x0)))
Cr(moveleft(Ba(x0))) → moveleft(Ba(Ar(x0)))
Cd(moveleft(Ba(x0))) → moveleft(Ba(Ad(x0)))
Ca(moveleft(Bb(x0))) → moveleft(Bb(Aa(x0)))
Cb(moveleft(Bb(x0))) → moveleft(Bb(Ab(x0)))
Cr(moveleft(Bb(x0))) → moveleft(Bb(Ar(x0)))
Cd(moveleft(Bb(x0))) → moveleft(Bb(Ad(x0)))
Ca(moveleft(Br(x0))) → moveleft(Br(Aa(x0)))
Cb(moveleft(Br(x0))) → moveleft(Br(Ab(x0)))
Cr(moveleft(Br(x0))) → moveleft(Br(Ar(x0)))
Cd(moveleft(Br(x0))) → moveleft(Br(Ad(x0)))
Ca(moveleft(Bd(x0))) → moveleft(Bd(Aa(x0)))
Cb(moveleft(Bd(x0))) → moveleft(Bd(Ab(x0)))
Cr(moveleft(Bd(x0))) → moveleft(Bd(Ar(x0)))
Cd(moveleft(Bd(x0))) → moveleft(Bd(Ad(x0)))
cut(moveleft(Ba(x0))) → Da(cut(goright(x0)))
cut(moveleft(Bb(x0))) → Db(cut(goright(x0)))
cut(moveleft(Br(x0))) → Dr(cut(goright(x0)))
cut(moveleft(Bd(x0))) → Dd(cut(goright(x0)))
goright(Aa(x0)) → Ca(goright(x0))
goright(Ab(x0)) → Cb(goright(x0))
goright(Ar(x0)) → Cr(goright(x0))
goright(Ad(x0)) → Cd(goright(x0))
goright(wait(a(x0))) → moveleft(Ba(wait(x0)))
goright(wait(b(x0))) → moveleft(Bb(wait(x0)))
goright(wait(r(x0))) → moveleft(Br(wait(x0)))
goright(wait(d(x0))) → moveleft(Bd(wait(x0)))
goright(wait(end(x0))) → finish(end(x0))
Ca(finish(x0)) → finish(a(x0))
Cb(finish(x0)) → finish(b(x0))
Cr(finish(x0)) → finish(r(x0))
Cd(finish(x0)) → finish(d(x0))
cut(finish(x0)) → finish2(x0)
Da(finish2(x0)) → finish2(a(x0))
Db(finish2(x0)) → finish2(b(x0))
Dr(finish2(x0)) → finish2(r(x0))
Dd(finish2(x0)) → finish2(d(x0))
rotate(finish2(x0)) → rewrite(x0)
rewrite(a(b(x0))) → begin(b(r(x0)))
rewrite(r(a(x0))) → begin(d(r(x0)))
rewrite(r(x0)) → begin(d(x0))
rewrite(d(a(x0))) → begin(a(a(d(x0))))
rewrite(d(x0)) → begin(a(x0))