Problem AProVE 10 isNat

Tool LMPO

Execution Time
0.032
Answer
MAYBE
InputAProVE 10 isNat

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  f(tt(), x) -> f(isNat(x), s(x))
     , isNat(s(x)) -> isNat(x)
     , isNat(0()) -> tt()}
  StartTerms: basic terms
  Strategy: innermost

Certificate: MAYBE

Proof:
  The input cannot be shown compatible

Arrrr..

Tool MPO

Execution Time
0.026
Answer
MAYBE
InputAProVE 10 isNat

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  f(tt(), x) -> f(isNat(x), s(x))
     , isNat(s(x)) -> isNat(x)
     , isNat(0()) -> tt()}
  StartTerms: basic terms
  Strategy: innermost

Certificate: MAYBE

Proof:
  The input cannot be shown compatible

Arrrr..

Tool POP*

Execution Time
0.027
Answer
MAYBE
InputAProVE 10 isNat

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  f(tt(), x) -> f(isNat(x), s(x))
     , isNat(s(x)) -> isNat(x)
     , isNat(0()) -> tt()}
  StartTerms: basic terms
  Strategy: innermost

Certificate: MAYBE

Proof:
  The input cannot be shown compatible

Arrrr..

Tool POP* (PS)

Execution Time
0.021
Answer
MAYBE
InputAProVE 10 isNat

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  f(tt(), x) -> f(isNat(x), s(x))
     , isNat(s(x)) -> isNat(x)
     , isNat(0()) -> tt()}
  StartTerms: basic terms
  Strategy: innermost

Certificate: MAYBE

Proof:
  The input cannot be shown compatible

Arrrr..

Tool Small POP*

Execution Time
0.031
Answer
MAYBE
InputAProVE 10 isNat

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  f(tt(), x) -> f(isNat(x), s(x))
     , isNat(s(x)) -> isNat(x)
     , isNat(0()) -> tt()}
  StartTerms: basic terms
  Strategy: innermost

Certificate: MAYBE

Proof:
  The input cannot be shown compatible

Arrrr..

Tool Small POP* (PS)

Execution Time
0.034
Answer
MAYBE
InputAProVE 10 isNat

stdout:

MAYBE

We consider the following Problem:

  Strict Trs:
    {  f(tt(), x) -> f(isNat(x), s(x))
     , isNat(s(x)) -> isNat(x)
     , isNat(0()) -> tt()}
  StartTerms: basic terms
  Strategy: innermost

Certificate: MAYBE

Proof:
  The input cannot be shown compatible

Arrrr..