Problem SK90 2.42

Tool Bounds

Execution Time	60.050457ms
Answer	TIMEOUT
Input	SK90 2.42

stdout:

TIMEOUT

We consider the following Problem:

  Strict Trs:
    {  ++(++(x, y), z) -> ++(x, ++(y, z))
     , ++(nil(), y) -> y
     , ++(x, nil()) -> x
     , rev(rev(x)) -> x
     , rev(++(x, y)) -> ++(rev(y), rev(x))
     , rev(unit(x)) -> unit(x)
     , rev(nil()) -> nil()
     , flatten(flatten(x)) -> flatten(x)
     , flatten(++(unit(x), y)) -> ++(flatten(x), flatten(y))
     , flatten(++(x, y)) -> ++(flatten(x), flatten(y))
     , flatten(unit(x)) -> flatten(x)
     , flatten(nil()) -> nil()}
  StartTerms: all
  Strategy: none

Certificate: TIMEOUT

Proof:
  Computation stopped due to timeout after 60.0 seconds.

Arrrr..

Tool CDI

Execution Time	2.981194ms
Answer	MAYBE
Input	SK90 2.42

stdout:

MAYBE

Statistics:
Number of monomials: 898
Last formula building started for bound 3
Last SAT solving started for bound 3

Tool EDA

Execution Time	36.65008ms
Answer	MAYBE
Input	SK90 2.42

stdout:

Tool IDA

Execution Time	27.635654ms
Answer	MAYBE
Input	SK90 2.42

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  ++(++(x, y), z) -> ++(x, ++(y, z))
     , ++(nil(), y) -> y
     , ++(x, nil()) -> x
     , rev(rev(x)) -> x
     , rev(++(x, y)) -> ++(rev(y), rev(x))
     , rev(unit(x)) -> unit(x)
     , rev(nil()) -> nil()
     , flatten(flatten(x)) -> flatten(x)
     , flatten(++(unit(x), y)) -> ++(flatten(x), flatten(y))
     , flatten(++(x, y)) -> ++(flatten(x), flatten(y))
     , flatten(unit(x)) -> flatten(x)
     , flatten(nil()) -> nil()}
  StartTerms: all
  Strategy: none

Certificate: MAYBE

Proof:
  None of the processors succeeded.

  Details of failed attempt(s):
  -----------------------------
    1) 'matrix-interpretation of dimension 4' failed due to the following reason:
         The input cannot be shown compatible

    2) 'matrix-interpretation of dimension 4' failed due to the following reason:
         The input cannot be shown compatible

    3) 'matrix-interpretation of dimension 4' failed due to the following reason:
         The input cannot be shown compatible

    4) 'matrix-interpretation of dimension 4' failed due to the following reason:
         The input cannot be shown compatible

    5) 'matrix-interpretation of dimension 3' failed due to the following reason:
         The input cannot be shown compatible

    6) 'matrix-interpretation of dimension 3' failed due to the following reason:
         The input cannot be shown compatible

    7) 'matrix-interpretation of dimension 3' failed due to the following reason:
         The input cannot be shown compatible

    8) 'matrix-interpretation of dimension 2' failed due to the following reason:
         The input cannot be shown compatible

    9) 'matrix-interpretation of dimension 2' failed due to the following reason:
         The input cannot be shown compatible

    10) 'matrix-interpretation of dimension 1' failed due to the following reason:
          The input cannot be shown compatible


Arrrr..

Tool TRI

Execution Time	7.931448ms
Answer	MAYBE
Input	SK90 2.42

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  ++(++(x, y), z) -> ++(x, ++(y, z))
     , ++(nil(), y) -> y
     , ++(x, nil()) -> x
     , rev(rev(x)) -> x
     , rev(++(x, y)) -> ++(rev(y), rev(x))
     , rev(unit(x)) -> unit(x)
     , rev(nil()) -> nil()
     , flatten(flatten(x)) -> flatten(x)
     , flatten(++(unit(x), y)) -> ++(flatten(x), flatten(y))
     , flatten(++(x, y)) -> ++(flatten(x), flatten(y))
     , flatten(unit(x)) -> flatten(x)
     , flatten(nil()) -> nil()}
  StartTerms: all
  Strategy: none

Certificate: MAYBE

Proof:
  None of the processors succeeded.

  Details of failed attempt(s):
  -----------------------------
    1) 'matrix-interpretation of dimension 6' failed due to the following reason:
         The input cannot be shown compatible

    2) 'matrix-interpretation of dimension 5' failed due to the following reason:
         The input cannot be shown compatible

    3) 'matrix-interpretation of dimension 4' failed due to the following reason:
         The input cannot be shown compatible

    4) 'matrix-interpretation of dimension 3' failed due to the following reason:
         The input cannot be shown compatible

    5) 'matrix-interpretation of dimension 2' failed due to the following reason:
         The input cannot be shown compatible

    6) 'matrix-interpretation of dimension 1' failed due to the following reason:
         The input cannot be shown compatible


Arrrr..

Tool TRI2

Execution Time	0.23431182ms
Answer	MAYBE
Input	SK90 2.42