Loop of length 19 starting with a string of length 6
found after enumerating 69742 derivations:

.bca.aaa
	rule bca -> cabac at position 0
.cabac.aaa
	rule a -> b at position 3
.cabbc.aaa
	rule bca -> cabac at position 3
.cabcabac.aa
	rule a -> b at position 6
.cabcabbc.aa
	rule bca -> cabac at position 6
.cabcabcabac.a
	rule bca -> cabac at position 5
.cabcacabacbac.a
	rule a -> b at position 6
.cabcacbbacbac.a
	rule a -> b at position 8
.cabcacbbbcbac.a
	rule cb ->  at position 9
.cabcacbbbac.a
	rule a -> b at position 9
.cabcacbbbbc.a
	rule bca -> cabac at position 9
.cabcacbbbcabac.
	rule bca -> cabac at position 8
.cabcacbbcabacbac.
	rule bca -> cabac at position 7
.cabcacbcabacbacbac.
	rule bca -> cabac at position 6
.cabcaccabacbacbacbac.
	rule a -> b at position 7
.cabcaccbbacbacbacbac.
	rule cb ->  at position 6
.cabcacbacbacbacbac.
	rule cb ->  at position 5
.cabcaacbacbacbac.
	rule cb ->  at position 6
.cabcaaacbacbac.
	rule cb ->  at position 7
.cabcaaaacbac.