YES

After renaming modulo { a->0, b->1, c->2 }, 
it remains to prove termination of the 4-rule system
{ 0 -> 1 1 ,
  0 1 1 -> 1 1 2 2 2 0 ,
  1 1 -> 2 2 2 ,
  2 2 2 1 1 -> 0 }


The system was filtered by the following matrix interpretation
of type E_J with J = {1,...,2} and dimension 2:

0 is interpreted by
 /   \
| 1 2 |
| 0 1 |
 \   /
1 is interpreted by
 /   \
| 1 1 |
| 0 1 |
 \   /
2 is interpreted by
 /   \
| 1 0 |
| 0 1 |
 \   /

After renaming modulo { 0->0, 1->1, 2->2 }, 
it remains to prove termination of the 3-rule system
{ 0 -> 1 1 ,
  0 1 1 -> 1 1 2 2 2 0 ,
  2 2 2 1 1 -> 0 }


Applying the dependency pairs transformation.

After renaming modulo { (0,true)->0, (1,false)->1, (2,true)->2, (2,false)->3, (0,false)->4 },
it remains to prove termination of the 8-rule system
{ 0 1 1 -> 2 3 3 4 ,
  0 1 1 -> 2 3 4 ,
  0 1 1 -> 2 4 ,
  0 1 1 -> 0 ,
  2 3 3 1 1 -> 0 ,
  4 ->= 1 1 ,
  4 1 1 ->= 1 1 3 3 3 4 ,
  3 3 3 1 1 ->= 4 }


The system was filtered by the following matrix interpretation
of type E_J with J = {1,...,2} and dimension 2:

0 is interpreted by
 /   \
| 1 1 |
| 0 1 |
 \   /
1 is interpreted by
 /   \
| 1 1 |
| 0 1 |
 \   /
2 is interpreted by
 /   \
| 1 0 |
| 0 1 |
 \   /
3 is interpreted by
 /   \
| 1 0 |
| 0 1 |
 \   /
4 is interpreted by
 /   \
| 1 2 |
| 0 1 |
 \   /

After renaming modulo { 4->0, 1->1, 3->2 }, 
it remains to prove termination of the 3-rule system
{ 0 ->= 1 1 ,
  0 1 1 ->= 1 1 2 2 2 0 ,
  2 2 2 1 1 ->= 0 }

The system is trivially terminating.