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:

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

Q is empty.


QTRS
  ↳ DependencyPairsProof

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

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

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:

F'2(triple3(a, b, c), A) -> FOLDB2(triple3(s1(a), 0, c), b)
F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
F2(t, x) -> G1(x)
FOLDB2(t, s1(n)) -> FOLDB2(t, n)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
FOLDC2(t, s1(n)) -> FOLDC2(t, n)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)
FOLDB2(t, s1(n)) -> F2(foldB2(t, n), B)

The TRS R consists of the following rules:

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

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:

F'2(triple3(a, b, c), A) -> FOLDB2(triple3(s1(a), 0, c), b)
F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
F2(t, x) -> G1(x)
FOLDB2(t, s1(n)) -> FOLDB2(t, n)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
FOLDC2(t, s1(n)) -> FOLDC2(t, n)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)
FOLDB2(t, s1(n)) -> F2(foldB2(t, n), B)

The TRS R consists of the following rules:

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph [13,14,18] contains 1 SCC with 1 less node.

↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ DependencyGraphProof
QDP
          ↳ QDPOrderProof

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

F'2(triple3(a, b, c), A) -> FOLDB2(triple3(s1(a), 0, c), b)
F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
FOLDB2(t, s1(n)) -> FOLDB2(t, n)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
FOLDC2(t, s1(n)) -> FOLDC2(t, n)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)
FOLDB2(t, s1(n)) -> F2(foldB2(t, n), B)

The TRS R consists of the following rules:

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

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.


F'2(triple3(a, b, c), A) -> FOLDB2(triple3(s1(a), 0, c), b)
FOLDB2(t, s1(n)) -> FOLDB2(t, n)
FOLDB2(t, s1(n)) -> F2(foldB2(t, n), B)
The remaining pairs can at least be oriented weakly.

F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
FOLDC2(t, s1(n)) -> FOLDC2(t, n)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)
Used ordering: Polynomial interpretation [21]:

POL(0) = 0   
POL(A) = 2   
POL(B) = 2   
POL(C) = 2   
POL(F2(x1, x2)) = 2 + x1 + 3·x1·x2   
POL(F'2(x1, x2)) = 2 + x1 + 3·x1·x2   
POL(F''1(x1)) = 2 + 3·x1 + 2·x12   
POL(FOLDB2(x1, x2)) = 1 + 3·x1 + 3·x1·x2 + 2·x2   
POL(FOLDC2(x1, x2)) = 2 + x1 + 3·x1·x2   
POL(f2(x1, x2)) = 3·x1   
POL(f'2(x1, x2)) = 3·x1   
POL(f''1(x1)) = 3·x1   
POL(foldB2(x1, x2)) = x1 + x1·x2   
POL(foldC2(x1, x2)) = x1 + x1·x2   
POL(g1(x1)) = x1   
POL(s1(x1)) = 2 + 3·x1   
POL(triple3(x1, x2, x3)) = 3·x2 + 3·x2·x3   

The following usable rules [14] were oriented:

g1(A) -> A
g1(C) -> C
g1(C) -> B
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
g1(C) -> A
foldC2(t, 0) -> t
g1(B) -> A
foldB2(t, 0) -> t
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f2(t, x) -> f'2(t, g1(x))
g1(B) -> B



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

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

F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
FOLDC2(t, s1(n)) -> FOLDC2(t, n)
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))

The TRS R consists of the following rules:

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

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.


FOLDC2(t, s1(n)) -> FOLDC2(t, n)
The remaining pairs can at least be oriented weakly.

F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))
Used ordering: Polynomial interpretation [21]:

POL(0) = 0   
POL(A) = 3   
POL(B) = 3   
POL(C) = 3   
POL(F2(x1, x2)) = 2·x1 + x2   
POL(F'2(x1, x2)) = 2·x1 + x2   
POL(F''1(x1)) = 3 + 2·x1   
POL(FOLDC2(x1, x2)) = 3 + 2·x1 + 2·x2   
POL(f2(x1, x2)) = 2 + x1   
POL(f'2(x1, x2)) = 2 + x1   
POL(f''1(x1)) = 2 + x1   
POL(foldB2(x1, x2)) = x1 + x2   
POL(foldC2(x1, x2)) = 2 + x1 + x2   
POL(g1(x1)) = x1   
POL(s1(x1)) = 2 + x1   
POL(triple3(x1, x2, x3)) = 2·x1·x2 + x2 + x3   

The following usable rules [14] were oriented:

g1(C) -> A
g1(A) -> A
g1(C) -> C
foldC2(t, 0) -> t
g1(C) -> B
g1(B) -> A
foldB2(t, 0) -> t
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f2(t, x) -> f'2(t, g1(x))
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
g1(B) -> B



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

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

F2(t, x) -> F'2(t, g1(x))
FOLDC2(t, s1(n)) -> F2(foldC2(t, n), C)
F''1(triple3(a, b, c)) -> FOLDC2(triple3(a, b, 0), c)
F'2(triple3(a, b, c), A) -> F''1(foldB2(triple3(s1(a), 0, c), b))
F'2(triple3(a, b, c), B) -> F2(triple3(a, b, c), A)

The TRS R consists of the following rules:

g1(A) -> A
g1(B) -> A
g1(B) -> B
g1(C) -> A
g1(C) -> B
g1(C) -> C
foldB2(t, 0) -> t
foldB2(t, s1(n)) -> f2(foldB2(t, n), B)
foldC2(t, 0) -> t
foldC2(t, s1(n)) -> f2(foldC2(t, n), C)
f2(t, x) -> f'2(t, g1(x))
f'2(triple3(a, b, c), C) -> triple3(a, b, s1(c))
f'2(triple3(a, b, c), B) -> f2(triple3(a, b, c), A)
f'2(triple3(a, b, c), A) -> f''1(foldB2(triple3(s1(a), 0, c), b))
f''1(triple3(a, b, c)) -> foldC2(triple3(a, b, 0), c)

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