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:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.


↳ QTRS
  ↳ DependencyPairsProof

Q restricted rewrite system:
The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.

Using Dependency Pairs [1,13] we result in the following initial DP problem:
Q DP problem:
The TRS P consists of the following rules:

*12(x, s1(y)) -> +12(x, *2(x, y))
MIN2(s1(x), s1(y)) -> MIN2(x, y)
*12(x, s1(y)) -> *12(x, y)
-12(s1(x), s1(y)) -> -12(x, y)
+12(s1(x), y) -> +12(x, y)
F1(s1(x)) -> MAX2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0)))))
F1(s1(x)) -> +12(s1(x), s1(s1(s1(s1(0)))))
F1(s1(x)) -> -12(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0)))))))
F1(s1(x)) -> MAX2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))
F1(s1(x)) -> +12(s1(x), s1(s1(s1(0))))
F1(s1(x)) -> F1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))
MAX2(s1(x), s1(y)) -> MAX2(x, y)
F1(s1(x)) -> *12(s1(x), s1(x))

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

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:

*12(x, s1(y)) -> +12(x, *2(x, y))
MIN2(s1(x), s1(y)) -> MIN2(x, y)
*12(x, s1(y)) -> *12(x, y)
-12(s1(x), s1(y)) -> -12(x, y)
+12(s1(x), y) -> +12(x, y)
F1(s1(x)) -> MAX2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0)))))
F1(s1(x)) -> +12(s1(x), s1(s1(s1(s1(0)))))
F1(s1(x)) -> -12(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0)))))))
F1(s1(x)) -> MAX2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))
F1(s1(x)) -> +12(s1(x), s1(s1(s1(0))))
F1(s1(x)) -> F1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))
MAX2(s1(x), s1(y)) -> MAX2(x, y)
F1(s1(x)) -> *12(s1(x), s1(x))

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph [13,14,18] contains 6 SCCs with 7 less nodes.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
            ↳ QDPOrderProof
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
The TRS P consists of the following rules:

-12(s1(x), s1(y)) -> -12(x, y)

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].


The following pairs can be oriented strictly and are deleted.


-12(s1(x), s1(y)) -> -12(x, y)
The remaining pairs can at least be oriented weakly.
none
Used ordering: Polynomial interpretation [21]:

POL(-12(x1, x2)) = x2   
POL(s1(x1)) = 1 + x1   

The following usable rules [14] were oriented: none



↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
            ↳ QDPOrderProof
              ↳ QDP
                ↳ PisEmptyProof
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
P is empty.
The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
The TRS P consists of the following rules:

+12(s1(x), y) -> +12(x, y)

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].


The following pairs can be oriented strictly and are deleted.


+12(s1(x), y) -> +12(x, y)
The remaining pairs can at least be oriented weakly.
none
Used ordering: Polynomial interpretation [21]:

POL(+12(x1, x2)) = x1   
POL(s1(x1)) = 1 + x1   

The following usable rules [14] were oriented: none



↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
              ↳ QDP
                ↳ PisEmptyProof
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
P is empty.
The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
The TRS P consists of the following rules:

*12(x, s1(y)) -> *12(x, y)

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].


The following pairs can be oriented strictly and are deleted.


*12(x, s1(y)) -> *12(x, y)
The remaining pairs can at least be oriented weakly.
none
Used ordering: Polynomial interpretation [21]:

POL(*12(x1, x2)) = x2   
POL(s1(x1)) = 1 + x1   

The following usable rules [14] were oriented: none



↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
              ↳ QDP
                ↳ PisEmptyProof
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
P is empty.
The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
          ↳ QDP
          ↳ QDP

Q DP problem:
The TRS P consists of the following rules:

MAX2(s1(x), s1(y)) -> MAX2(x, y)

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].


The following pairs can be oriented strictly and are deleted.


MAX2(s1(x), s1(y)) -> MAX2(x, y)
The remaining pairs can at least be oriented weakly.
none
Used ordering: Polynomial interpretation [21]:

POL(MAX2(x1, x2)) = x2   
POL(s1(x1)) = 1 + x1   

The following usable rules [14] were oriented: none



↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
              ↳ QDP
                ↳ PisEmptyProof
          ↳ QDP
          ↳ QDP

Q DP problem:
P is empty.
The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP

Q DP problem:
The TRS P consists of the following rules:

F1(s1(x)) -> F1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof

Q DP problem:
The TRS P consists of the following rules:

MIN2(s1(x), s1(y)) -> MIN2(x, y)

The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].


The following pairs can be oriented strictly and are deleted.


MIN2(s1(x), s1(y)) -> MIN2(x, y)
The remaining pairs can at least be oriented weakly.
none
Used ordering: Polynomial interpretation [21]:

POL(MIN2(x1, x2)) = x2   
POL(s1(x1)) = 1 + x1   

The following usable rules [14] were oriented: none



↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
        ↳ AND
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
          ↳ QDP
            ↳ QDPOrderProof
              ↳ QDP
                ↳ PisEmptyProof

Q DP problem:
P is empty.
The TRS R consists of the following rules:

min2(0, y) -> 0
min2(x, 0) -> 0
min2(s1(x), s1(y)) -> s1(min2(x, y))
max2(0, y) -> y
max2(x, 0) -> x
max2(s1(x), s1(y)) -> s1(max2(x, y))
+2(0, y) -> y
+2(s1(x), y) -> s1(+2(x, y))
-2(x, 0) -> x
-2(s1(x), s1(y)) -> -2(x, y)
*2(x, 0) -> 0
*2(x, s1(y)) -> +2(x, *2(x, y))
f1(s1(x)) -> f1(-2(max2(*2(s1(x), s1(x)), +2(s1(x), s1(s1(s1(0))))), max2(s1(*2(s1(x), s1(x))), +2(s1(x), s1(s1(s1(s1(0))))))))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.