Termination Proof using AProVE

Term Rewriting System R:
[x, l, y]
rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Innermost Termination of R to be shown.

     ↳Dependency Pair Analysis

R contains the following Dependency Pairs:

REV(cons(x, l)) -> REV1(x, l)
REV(cons(x, l)) -> REV2(x, l)
REV1(x, cons(y, l)) -> REV1(y, l)
REV2(x, cons(y, l)) -> REV(cons(x, rev2(y, l)))
REV2(x, cons(y, l)) -> REV2(y, l)

Furthermore, R contains two SCCs.

     ↳DPs

       →DP Problem 1

         ↳Forward Instantiation Transformation

       →DP Problem 2

         ↳FwdInst

Dependency Pair:

REV1(x, cons(y, l)) -> REV1(y, l)

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV1(x, cons(y, l)) -> REV1(y, l)

one new Dependency Pair is created:

REV1(x, cons(y0, cons(y'', l''))) -> REV1(y0, cons(y'', l''))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

           →DP Problem 3

             ↳Forward Instantiation Transformation

       →DP Problem 2

         ↳FwdInst

Dependency Pair:

REV1(x, cons(y0, cons(y'', l''))) -> REV1(y0, cons(y'', l''))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV1(x, cons(y0, cons(y'', l''))) -> REV1(y0, cons(y'', l''))

one new Dependency Pair is created:

REV1(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV1(y0'', cons(y''0, cons(y'''', l'''')))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

           →DP Problem 3

             ↳FwdInst

...

               →DP Problem 4

                 ↳Argument Filtering and Ordering

       →DP Problem 2

         ↳FwdInst

Dependency Pair:

REV1(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV1(y0'', cons(y''0, cons(y'''', l'''')))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

The following dependency pair can be strictly oriented:

REV1(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV1(y0'', cons(y''0, cons(y'''', l'''')))

There are no usable rules for innermost that need to be oriented.
Used ordering: Homeomorphic Embedding Order with EMB
resulting in one new DP problem.
Used Argument Filtering System:

REV1(x₁, x₂) -> x₂
cons(x₁, x₂) -> cons(x₁, x₂)

     ↳DPs

       →DP Problem 1

         ↳FwdInst

           →DP Problem 3

             ↳FwdInst

...

               →DP Problem 5

                 ↳Dependency Graph

       →DP Problem 2

         ↳FwdInst

Dependency Pair:

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

Using the Dependency Graph resulted in no new DP problems.

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳Forward Instantiation Transformation

Dependency Pairs:

REV2(x, cons(y, l)) -> REV2(y, l)
REV2(x, cons(y, l)) -> REV(cons(x, rev2(y, l)))
REV(cons(x, l)) -> REV2(x, l)

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV(cons(x, l)) -> REV2(x, l)

one new Dependency Pair is created:

REV(cons(x'', cons(y'', l''))) -> REV2(x'', cons(y'', l''))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Narrowing Transformation

Dependency Pairs:

REV(cons(x'', cons(y'', l''))) -> REV2(x'', cons(y'', l''))
REV2(x, cons(y, l)) -> REV(cons(x, rev2(y, l)))
REV2(x, cons(y, l)) -> REV2(y, l)

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Narrowing SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y, l)) -> REV(cons(x, rev2(y, l)))

two new Dependency Pairs are created:

REV2(x, cons(y', nil)) -> REV(cons(x, nil))
REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, rev(cons(y0, rev2(y'', l'')))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 7

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, rev(cons(y0, rev2(y'', l'')))))
REV2(x, cons(y, l)) -> REV2(y, l)
REV(cons(x'', cons(y'', l''))) -> REV2(x'', cons(y'', l''))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, rev(cons(y0, rev2(y'', l'')))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, cons(rev1(y0, rev2(y'', l'')), rev2(y0, rev2(y'', l'')))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 8

                 ↳Forward Instantiation Transformation

Dependency Pairs:

REV(cons(x'', cons(y'', l''))) -> REV2(x'', cons(y'', l''))
REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, cons(rev1(y0, rev2(y'', l'')), rev2(y0, rev2(y'', l'')))))
REV2(x, cons(y, l)) -> REV2(y, l)

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y, l)) -> REV2(y, l)

two new Dependency Pairs are created:

REV2(x, cons(y0, cons(y'', l''))) -> REV2(y0, cons(y'', l''))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 9

                 ↳Forward Instantiation Transformation

Dependency Pairs:

REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV2(x, cons(y0, cons(y'', l''))) -> REV2(y0, cons(y'', l''))
REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, cons(rev1(y0, rev2(y'', l'')), rev2(y0, rev2(y'', l'')))))
REV(cons(x'', cons(y'', l''))) -> REV2(x'', cons(y'', l''))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV(cons(x'', cons(y'', l''))) -> REV2(x'', cons(y'', l''))

two new Dependency Pairs are created:

REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 10

                 ↳Forward Instantiation Transformation

Dependency Pairs:

REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y'', l''))) -> REV2(y0, cons(y'', l''))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, cons(rev1(y0, rev2(y'', l'')), rev2(y0, rev2(y'', l'')))))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y'', l''))) -> REV2(y0, cons(y'', l''))

two new Dependency Pairs are created:

REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 11

                 ↳Narrowing Transformation

Dependency Pairs:

REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, cons(rev1(y0, rev2(y'', l'')), rev2(y0, rev2(y'', l'')))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Narrowing SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y'', l''))) -> REV(cons(x, cons(rev1(y0, rev2(y'', l'')), rev2(y0, rev2(y'', l'')))))

four new Dependency Pairs are created:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, rev2(y''', nil)))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, rev2(y''', nil)), rev2(y0, nil))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev2(y''', cons(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 12

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, rev2(y''', nil)), rev2(y0, nil))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev2(y''', cons(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, rev2(y''', nil)))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, rev2(y''', nil)))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 13

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev2(y''', cons(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, rev2(y''', nil)), rev2(y0, nil))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 14

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, rev2(y''', nil)), rev2(y0, nil))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev2(y''', cons(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, rev2(y''', nil)), rev2(y0, nil))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 15

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev2(y''', cons(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev2(y''', cons(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 16

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), nil)))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 17

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev2(y''', cons(y', l'))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev2(y''', cons(y', l'))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 18

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev2(y''', cons(y', l'))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), rev2(y0, nil))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', nil))) -> REV(cons(x, cons(rev1(y0, nil), nil)))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 19

                 ↳Rewriting Transformation

Dependency Pairs:

REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev2(y''', cons(y', l'))))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, rev(cons(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 20

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev2(y''', cons(y', l'))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev2(y''', cons(y', l'))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 21

                 ↳Rewriting Transformation

Dependency Pairs:

REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 22

                 ↳Rewriting Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 23

                 ↳Rewriting Transformation

Dependency Pairs:

REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Rewriting SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, rev(cons(y''', rev2(y', l')))))))

one new Dependency Pair is created:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 24

                 ↳Forward Instantiation Transformation

Dependency Pairs:

REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y', cons(y0'', cons(y'''', l'''')))) -> REV2(y', cons(y0'', cons(y'''', l'''')))

four new Dependency Pairs are created:

REV2(x, cons(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))) -> REV2(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 25

                 ↳Forward Instantiation Transformation

Dependency Pairs:

REV2(x, cons(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))) -> REV2(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))
REV2(x, cons(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV(cons(x''', cons(y''0, cons(y'''', l'''')))) -> REV2(x''', cons(y''0, cons(y'''', l'''')))

seven new Dependency Pairs are created:

REV(cons(x'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(x'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y''', l'''))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y''', l'''))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))) -> REV2(x'''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))
REV(cons(x'''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))) -> REV2(x'''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 26

                 ↳Forward Instantiation Transformation

Dependency Pairs:

REV(cons(x'''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))) -> REV2(x'''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))
REV(cons(x'''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))) -> REV2(x'''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))
REV(cons(x'''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y''', l'''))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y''', l'''))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV(cons(x'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(x'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))
REV2(x, cons(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))) -> REV2(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

REV2(x, cons(y0'', cons(y''0, cons(y'''', l'''')))) -> REV2(y0'', cons(y''0, cons(y'''', l'''')))

seven new Dependency Pairs are created:

REV2(x, cons(y0'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y0'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y0'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(y0'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0''', cons(y''0', cons(y'''''', cons(y''', l'''))))) -> REV2(y0''', cons(y''0', cons(y'''''', cons(y''', l'''))))
REV2(x, cons(y0''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(y0''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(y0''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))) -> REV2(y0''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))
REV2(x, cons(y0''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))) -> REV2(y0''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))

The transformation is resulting in one new DP problem:

     ↳DPs

       →DP Problem 1

         ↳FwdInst

       →DP Problem 2

         ↳FwdInst

           →DP Problem 6

             ↳Nar

...

               →DP Problem 27

                 ↳Remaining Obligation(s)

The following remains to be proven:
Dependency Pairs:

REV(cons(x'''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))) -> REV2(x'''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))
REV(cons(x'''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y''', l'''))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y''', l'''))))
REV(cons(x'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(x'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))) -> REV2(y0''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))
REV2(x, cons(y0''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))) -> REV2(y0''', cons(y''0', cons(y''''', cons(y'''''''', cons(y0'''''''', cons(y'''''''''', l''''''''''))))))
REV2(x, cons(y0''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(y0''', cons(y''0', cons(y''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))) -> REV2(y0''', cons(y''0', cons(y'''''', cons(y''''0'', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0''', cons(y''0', cons(y'''''', cons(y''', l'''))))) -> REV2(y0''', cons(y''0', cons(y'''''', cons(y''', l'''))))
REV2(x, cons(y0'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(y0'''', cons(y''0', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y0'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y0'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))) -> REV2(y''', cons(y0''', cons(y'''''', cons(y''0, l'''))))
REV2(x, cons(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))) -> REV2(y'', cons(y0'''', cons(y'''''', cons(y0'''''', cons(y'''''''', l'''''''')))))
REV2(x, cons(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y'', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(y''', cons(y0'''', cons(y''''0, cons(y'''''', l''''''))))
REV(cons(x'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))) -> REV2(x'''', cons(y''0'', cons(y''''0, cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV(cons(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(x''', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV2(x, cons(y0, cons(y''', cons(y', l')))) -> REV(cons(x, cons(rev1(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l'))), rev2(y0, cons(rev1(y''', rev2(y', l')), rev2(y''', rev2(y', l')))))))
REV2(x, cons(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))) -> REV2(y0', cons(y'''', cons(y0'''', cons(y'''''', l''''''))))
REV(cons(x'''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))) -> REV2(x'''', cons(y''0'', cons(y'''''', cons(y'''''''', cons(y''0''', l'''''')))))

Rules:

rev(nil) -> nil
rev(cons(x, l)) -> cons(rev1(x, l), rev2(x, l))
rev1(0, nil) -> 0
rev1(s(x), nil) -> s(x)
rev1(x, cons(y, l)) -> rev1(y, l)
rev2(x, nil) -> nil
rev2(x, cons(y, l)) -> rev(cons(x, rev2(y, l)))

Strategy:

innermost

Innermost Termination of R could not be shown.
Duration:
0:08 minutes