Certification Problem

Input (TPDB SRS_Standard/ICFP_2010/50904)

The rewrite relation of the following TRS is considered.

0(0(0(x1))) 0(1(2(0(x1)))) (1)
0(1(1(x1))) 0(1(0(1(x1)))) (2)
2(0(2(1(x1)))) 2(0(0(1(2(x1))))) (3)
0(2(0(2(1(x1))))) 0(1(0(1(1(2(2(x1))))))) (4)
0(0(0(2(1(2(2(x1))))))) 0(0(1(2(2(2(0(x1))))))) (5)
1(2(1(2(0(2(1(x1))))))) 1(0(1(0(1(2(2(0(x1)))))))) (6)
2(0(0(0(1(1(0(x1))))))) 2(0(1(0(1(0(0(x1))))))) (7)
2(0(2(1(1(2(2(x1))))))) 2(2(2(0(1(2(1(x1))))))) (8)
2(2(1(1(0(0(2(1(2(1(x1)))))))))) 2(0(1(2(1(0(1(2(1(2(x1)))))))))) (9)
0(0(0(0(0(0(1(2(2(2(0(x1))))))))))) 0(1(2(0(1(2(0(0(1(2(1(0(1(2(x1)))))))))))))) (10)
0(0(1(0(0(1(1(2(1(0(1(x1))))))))))) 0(0(1(0(1(2(0(1(1(0(1(x1))))))))))) (11)
1(2(2(0(2(1(0(0(2(0(2(2(1(x1))))))))))))) 1(2(0(2(0(1(2(1(2(2(0(2(0(x1))))))))))))) (12)
0(2(1(0(0(2(0(0(2(2(2(1(0(1(1(x1))))))))))))))) 2(1(0(1(2(1(2(0(2(1(1(1(0(1(0(2(x1)))))))))))))))) (13)
2(0(2(2(2(0(0(2(2(1(2(0(0(0(2(2(x1)))))))))))))))) 0(1(1(1(2(0(1(2(2(2(1(2(1(2(0(0(2(x1))))))))))))))))) (14)
1(0(2(1(1(1(0(1(1(2(0(1(1(2(2(1(1(x1))))))))))))))))) 1(1(0(1(2(2(0(2(1(0(1(1(1(2(1(1(1(x1))))))))))))))))) (15)
2(0(1(0(1(1(2(1(2(0(0(0(0(0(0(2(0(1(x1)))))))))))))))))) 0(1(2(0(1(2(2(0(0(1(2(0(1(2(0(2(1(0(1(2(1(2(1(x1))))))))))))))))))))))) (16)
0(0(2(2(1(0(1(1(0(2(1(1(2(1(1(2(1(0(1(x1))))))))))))))))))) 1(2(1(1(1(2(0(2(0(2(1(0(2(0(1(1(1(0(1(x1))))))))))))))))))) (17)
0(0(0(0(1(0(0(2(2(1(2(0(1(1(1(1(2(2(2(2(x1)))))))))))))))))))) 1(2(1(1(2(0(1(0(1(2(1(0(1(1(0(1(2(2(1(1(0(0(x1)))))))))))))))))))))) (18)
1(0(1(0(2(1(0(0(1(0(2(0(2(0(2(2(1(2(1(1(x1)))))))))))))))))))) 1(0(0(2(2(0(2(1(0(0(1(2(1(2(1(1(1(0(0(2(x1)))))))))))))))))))) (19)
1(2(2(0(2(2(2(1(0(2(1(0(2(2(0(2(1(1(2(2(x1)))))))))))))))))))) 1(2(2(2(2(2(1(1(2(1(0(0(0(0(1(2(2(2(2(2(x1)))))))))))))))))))) (20)
2(1(2(0(0(1(0(0(0(0(1(1(1(2(1(1(2(1(1(1(x1)))))))))))))))))))) 0(1(1(1(0(1(0(1(1(2(0(2(0(1(2(1(2(1(1(0(x1)))))))))))))))))))) (21)
0(1(1(0(2(1(2(2(1(2(2(1(0(2(0(1(1(0(0(2(1(x1))))))))))))))))))))) 0(1(0(2(0(1(0(0(0(1(0(1(1(2(1(2(2(1(0(2(0(2(x1)))))))))))))))))))))) (22)
0(2(1(2(1(1(2(0(1(2(2(0(1(0(2(0(2(0(0(2(1(2(0(2(x1)))))))))))))))))))))))) 2(2(1(1(0(0(2(0(0(1(1(0(1(2(1(0(1(2(2(2(2(1(2(1(2(0(x1)))))))))))))))))))))))))) (23)
0(0(2(0(0(1(1(0(2(1(0(1(1(0(1(0(2(0(0(1(2(2(1(2(2(x1))))))))))))))))))))))))) 0(0(0(1(0(0(1(1(2(0(1(2(1(2(1(2(0(0(1(0(1(2(1(1(0(2(x1)))))))))))))))))))))))))) (24)
0(0(2(0(2(2(2(2(2(0(0(0(2(2(0(1(2(1(2(0(1(1(1(1(2(x1))))))))))))))))))))))))) 0(1(2(1(0(1(2(2(0(1(0(2(2(1(1(1(0(2(2(0(1(0(2(0(2(1(0(x1))))))))))))))))))))))))))) (25)
0(2(0(2(0(2(1(2(1(1(2(2(2(1(1(2(0(1(0(0(2(2(2(1(1(x1))))))))))))))))))))))))) 2(1(2(0(0(1(2(1(2(0(2(0(0(0(2(1(0(0(2(2(1(2(2(2(1(2(0(x1))))))))))))))))))))))))))) (26)
2(2(2(2(1(2(2(1(2(2(2(1(2(2(1(2(0(1(0(0(2(1(0(2(0(x1))))))))))))))))))))))))) 2(0(2(0(1(2(2(1(2(2(2(2(0(1(2(2(1(1(0(2(2(1(2(2(0(x1))))))))))))))))))))))))) (27)
0(0(1(2(0(2(2(1(1(0(1(1(2(0(0(0(0(1(0(2(2(1(1(1(2(1(x1)))))))))))))))))))))))))) 1(1(0(1(2(0(1(0(1(2(1(0(1(1(0(0(1(0(1(0(0(1(1(1(0(2(0(2(x1)))))))))))))))))))))))))))) (28)
0(1(0(0(1(1(2(1(0(1(0(2(2(2(1(0(0(2(2(2(2(0(1(1(0(1(2(0(x1)))))))))))))))))))))))))))) 2(1(0(2(2(1(0(1(0(1(2(0(1(2(1(0(1(1(2(1(2(1(0(2(2(0(2(0(0(x1))))))))))))))))))))))))))))) (29)
0(0(0(2(2(1(0(2(1(1(0(1(1(0(1(1(1(1(1(1(1(1(2(0(0(0(2(1(1(0(0(1(2(2(x1)))))))))))))))))))))))))))))))))) 2(0(0(1(2(0(2(1(1(1(0(2(0(0(1(0(1(2(2(0(0(1(2(2(2(1(0(0(0(0(1(2(1(0(1(0(1(0(2(0(0(x1))))))))))))))))))))))))))))))))))))))))) (30)
2(2(1(1(1(1(1(2(1(0(2(1(1(0(1(0(0(0(0(1(1(2(1(1(0(1(0(2(1(2(1(0(0(0(x1)))))))))))))))))))))))))))))))))) 2(1(0(1(2(0(1(2(1(0(0(0(2(1(2(2(0(2(0(1(1(1(2(1(1(0(0(2(0(1(1(0(1(0(1(2(x1)))))))))))))))))))))))))))))))))))) (31)
0(0(0(0(2(0(0(0(2(1(1(0(1(1(0(1(1(1(2(2(2(0(1(1(1(2(2(2(1(1(0(1(0(2(0(x1))))))))))))))))))))))))))))))))))) 2(0(0(1(2(1(1(1(2(2(0(2(2(1(0(0(1(1(0(1(2(2(1(0(0(2(0(1(0(0(1(1(0(1(0(x1))))))))))))))))))))))))))))))))))) (32)
2(1(1(0(2(2(2(1(2(1(1(0(0(2(0(1(0(2(0(0(2(0(2(2(0(0(0(0(0(2(2(1(0(2(0(x1))))))))))))))))))))))))))))))))))) 2(1(0(0(0(0(1(1(2(2(0(1(0(2(0(1(2(2(0(1(0(0(2(2(2(0(2(2(0(0(2(1(0(2(0(x1))))))))))))))))))))))))))))))))))) (33)
1(0(2(1(0(0(1(1(2(0(0(0(2(0(1(1(1(1(0(1(2(2(0(0(0(2(0(0(2(2(2(0(1(1(2(2(2(x1))))))))))))))))))))))))))))))))))))) 1(0(2(1(1(0(1(1(1(0(1(0(1(2(2(1(0(0(0(1(2(2(0(2(1(2(0(2(2(2(2(0(0(0(2(0(0(x1))))))))))))))))))))))))))))))))))))) (34)
0(1(0(2(1(1(1(1(1(0(0(0(2(1(0(1(0(0(0(1(0(1(0(0(0(0(2(1(0(0(0(0(1(1(2(1(0(1(1(x1))))))))))))))))))))))))))))))))))))))) 2(2(2(1(1(1(0(2(0(1(2(1(2(2(0(1(1(2(1(0(1(0(2(1(1(2(2(2(0(2(2(1(1(1(0(2(2(2(1(1(2(x1))))))))))))))))))))))))))))))))))))))))) (35)
1(2(0(2(2(2(0(2(1(1(2(0(1(1(2(0(1(1(1(1(1(2(2(2(1(0(0(1(1(1(1(0(0(2(0(0(2(2(1(x1))))))))))))))))))))))))))))))))))))))) 1(1(1(2(1(2(1(2(2(2(2(2(0(0(2(1(1(1(0(0(2(1(2(2(0(0(1(0(1(0(1(1(1(2(2(0(0(1(1(x1))))))))))))))))))))))))))))))))))))))) (36)
0(2(1(0(1(0(0(0(2(0(1(2(0(2(1(2(1(1(0(2(1(1(0(0(0(0(0(2(2(0(0(1(1(0(1(0(2(2(2(1(1(x1))))))))))))))))))))))))))))))))))))))))) 1(0(1(2(2(2(1(0(2(1(1(1(1(2(0(1(2(2(0(1(0(2(0(1(2(2(1(0(0(2(0(2(0(1(0(2(0(1(2(0(1(0(1(2(0(1(x1)))))))))))))))))))))))))))))))))))))))))))))) (37)
1(0(2(1(0(0(2(2(0(0(2(2(2(0(0(2(1(1(1(2(1(2(1(0(1(1(0(0(2(0(0(2(1(0(1(2(1(1(1(1(1(x1))))))))))))))))))))))))))))))))))))))))) 1(1(2(1(2(0(2(1(1(2(1(2(2(2(1(2(1(0(1(0(0(0(2(0(1(1(1(2(0(0(0(0(1(0(1(2(1(2(0(1(0(x1))))))))))))))))))))))))))))))))))))))))) (38)
1(2(1(1(2(0(1(0(1(0(2(0(2(1(1(2(0(0(0(0(1(1(0(2(1(2(0(0(0(2(1(2(0(0(0(2(2(2(2(1(0(x1))))))))))))))))))))))))))))))))))))))))) 1(0(1(2(1(0(0(1(0(1(1(0(2(0(2(1(2(0(1(2(0(0(2(0(0(2(0(0(0(1(2(2(0(0(1(0(2(1(2(2(0(0(x1)))))))))))))))))))))))))))))))))))))))))) (39)
0(0(1(2(2(2(0(1(1(2(1(2(0(1(2(2(0(2(2(2(0(1(0(0(2(2(2(2(2(1(1(2(0(1(1(2(0(0(2(2(1(0(x1)))))))))))))))))))))))))))))))))))))))))) 1(0(1(2(0(2(1(2(1(2(1(2(0(0(2(2(2(2(2(1(0(0(2(0(1(2(0(1(2(2(1(1(2(0(1(2(0(2(2(2(0(0(x1)))))))))))))))))))))))))))))))))))))))))) (40)
1(0(2(2(0(2(2(1(0(2(1(0(0(2(1(1(2(2(1(0(2(2(2(2(0(2(1(2(0(2(1(2(1(1(2(0(1(2(1(1(2(2(x1)))))))))))))))))))))))))))))))))))))))))) 1(0(1(0(0(1(2(0(1(1(1(2(2(1(2(0(0(2(0(0(1(2(0(1(2(2(1(0(0(1(2(2(2(1(1(2(0(0(2(2(1(2(1(2(x1)))))))))))))))))))))))))))))))))))))))))))) (41)
2(2(0(0(0(0(0(0(1(0(2(2(2(1(1(2(2(0(0(2(2(1(1(0(2(2(1(1(0(2(0(2(1(1(0(1(1(2(2(1(1(2(x1)))))))))))))))))))))))))))))))))))))))))) 2(2(1(0(0(1(0(0(0(1(2(2(2(1(2(1(2(0(1(1(1(2(1(0(0(2(2(2(1(2(0(0(1(0(1(0(0(1(2(1(2(1(2(0(0(0(2(x1))))))))))))))))))))))))))))))))))))))))))))))) (42)
0(2(0(1(0(2(2(2(2(0(0(0(1(2(1(0(0(0(2(1(1(2(2(1(2(2(2(0(2(0(0(1(2(0(2(0(2(0(1(0(2(1(1(1(x1)))))))))))))))))))))))))))))))))))))))))))) 1(2(2(0(2(1(2(0(0(1(1(2(0(0(1(2(1(0(1(0(1(2(1(0(1(0(2(0(1(1(0(2(2(2(1(2(1(0(0(1(2(0(2(0(2(2(1(2(1(x1))))))))))))))))))))))))))))))))))))))))))))))))) (43)
1(0(0(2(1(2(1(0(2(0(1(1(1(0(1(1(1(0(0(0(1(2(0(1(2(2(0(0(1(0(0(1(1(2(0(0(2(0(1(1(0(2(1(1(x1)))))))))))))))))))))))))))))))))))))))))))) 1(0(1(2(2(1(1(2(0(1(1(1(1(0(1(2(2(0(0(0(1(2(0(0(2(0(0(0(1(1(0(1(1(0(1(0(0(2(1(1(0(2(0(1(x1)))))))))))))))))))))))))))))))))))))))))))) (44)
2(0(0(2(0(2(0(0(2(1(0(1(2(2(0(2(1(2(2(0(2(2(0(2(1(1(0(1(0(2(1(1(0(1(2(1(2(2(0(0(0(1(1(2(x1)))))))))))))))))))))))))))))))))))))))))))) 2(2(0(0(2(2(0(1(2(0(0(1(2(2(0(0(1(2(2(1(2(2(1(0(0(1(1(2(2(2(2(2(0(1(0(1(1(1(0(0(0(1(0(2(x1)))))))))))))))))))))))))))))))))))))))))))) (45)
2(2(1(2(0(0(1(1(2(2(2(1(0(2(1(0(1(1(2(1(2(1(1(0(0(0(0(1(1(0(2(2(0(1(2(2(1(2(1(0(0(0(1(1(x1)))))))))))))))))))))))))))))))))))))))))))) 2(2(2(2(0(0(1(2(1(2(0(1(1(2(1(1(0(1(2(1(1(1(0(1(1(2(0(0(1(0(0(2(2(0(2(2(0(2(1(1(0(0(1(1(x1)))))))))))))))))))))))))))))))))))))))))))) (46)
0(0(0(2(2(1(1(2(1(2(1(0(2(1(0(2(2(0(2(2(0(1(1(1(2(2(2(0(2(1(2(2(0(0(0(2(1(1(2(1(0(0(0(0(0(2(0(x1))))))))))))))))))))))))))))))))))))))))))))))) 0(0(1(2(2(1(1(2(0(1(0(0(2(1(0(2(2(1(2(2(0(1(1(2(2(2(0(2(2(2(0(0(1(0(2(0(0(0(2(1(1(2(0(1(0(2(0(x1))))))))))))))))))))))))))))))))))))))))))))))) (47)
0(0(2(0(0(0(0(2(2(2(1(0(2(2(2(1(2(1(0(2(1(0(2(2(1(1(1(1(2(1(2(0(0(1(1(1(0(1(2(2(1(1(1(2(1(0(0(0(x1)))))))))))))))))))))))))))))))))))))))))))))))) 0(1(1(0(2(0(0(2(1(2(1(2(2(0(2(1(2(0(2(0(1(0(2(2(1(1(1(0(0(1(1(0(2(0(1(2(0(1(2(2(2(1(1(2(1(0(1(0(x1)))))))))))))))))))))))))))))))))))))))))))))))) (48)
0(0(2(0(2(1(0(2(1(1(0(0(0(2(2(0(2(1(2(1(0(1(1(0(2(2(0(1(0(0(1(0(2(2(2(1(0(2(1(0(0(2(1(2(0(2(1(2(x1)))))))))))))))))))))))))))))))))))))))))))))))) 2(2(2(2(0(2(2(1(1(1(1(1(2(0(0(1(1(0(1(2(1(1(0(0(2(0(0(0(2(1(1(0(2(0(0(2(2(2(0(1(2(0(2(2(0(1(0(0(0(x1))))))))))))))))))))))))))))))))))))))))))))))))) (49)
1(2(0(1(0(0(0(2(0(2(2(2(2(1(1(0(1(1(2(0(2(1(1(0(2(0(2(2(0(1(1(2(0(0(2(0(0(1(2(2(2(0(0(2(1(1(1(2(x1)))))))))))))))))))))))))))))))))))))))))))))))) 1(2(0(1(2(2(0(2(2(2(2(0(0(0(1(2(0(1(2(0(2(0(1(2(0(1(0(2(0(0(1(1(2(0(2(0(0(1(2(2(2(2(1(0(1(1(1(1(x1)))))))))))))))))))))))))))))))))))))))))))))))) (50)

Property / Task

Prove or disprove termination.

Answer / Result

Yes.

Proof (by matchbox @ termCOMP 2023)

1 Closure Under Flat Contexts

Using the flat contexts

{2(), 1(), 0()}

We obtain the transformed TRS

There are 150 ruless (increase limit for explicit display).

1.1 Closure Under Flat Contexts

Using the flat contexts

{2(), 1(), 0()}

We obtain the transformed TRS

There are 450 ruless (increase limit for explicit display).

1.1.1 Semantic Labeling

The following interpretations form a model of the rules.

As carrier we take the set {0,...,8}. Symbols are labeled by the interpretation of their arguments using the interpretations (modulo 9):

[2(x1)] = 3x1 + 0
[1(x1)] = 3x1 + 1
[0(x1)] = 3x1 + 2

We obtain the labeled TRS

There are 4050 ruless (increase limit for explicit display).

1.1.1.1 Rule Removal

Using the matrix interpretations of dimension 1 with strict dimension 1 over the rationals with delta = 1
[20(x1)] = x1 +
3441/10
[23(x1)] = x1 +
3451/10
[26(x1)] = x1 +
0
[21(x1)] = x1 +
8583/20
[24(x1)] = x1 +
3291/5
[27(x1)] = x1 +
3151/20
[22(x1)] = x1 +
8711/20
[25(x1)] = x1 +
0
[28(x1)] = x1 +
907/5
[10(x1)] = x1 +
0
[13(x1)] = x1 +
1
[16(x1)] = x1 +
0
[11(x1)] = x1 +
3286/5
[14(x1)] = x1 +
10013/20
[17(x1)] = x1 +
1
[12(x1)] = x1 +
3316/5
[15(x1)] = x1 +
1
[18(x1)] = x1 +
559
[00(x1)] = x1 +
3136/5
[03(x1)] = x1 +
3286/5
[06(x1)] = x1 +
3131/10
[01(x1)] = x1 +
0
[04(x1)] = x1 +
3286/5
[07(x1)] = x1 +
5239/20
[02(x1)] = x1 +
3291/5
[05(x1)] = x1 +
0
[08(x1)] = x1 +
3286/5
all of the following rules can be deleted.

There are 4050 ruless (increase limit for explicit display).

1.1.1.1.1 R is empty

There are no rules in the TRS. Hence, it is terminating.