Loop of length 32 starting with a string of length 8
found after enumerating 263519 derivations:

.ca.aaaaaa
	rule ca -> aabac at position 0
.aabac.aaaaaa
	rule a ->  at position 3
.aabc.aaaaaa
	rule ca -> aabac at position 3
.aabaabac.aaaaa
	rule a ->  at position 3
.aababac.aaaaa
	rule a ->  at position 3
.aabbac.aaaaa
	rule a ->  at position 4
.aabbc.aaaaa
	rule ca -> aabac at position 4
.aabbaabac.aaaa
	rule a ->  at position 4
.aabbabac.aaaa
	rule a ->  at position 4
.aabbbac.aaaa
	rule bbb -> c at position 2
.aacac.aaaa
	rule ca -> aabac at position 4
.aacaaabac.aaa
	rule a ->  at position 7
.aacaaabc.aaa
	rule ca -> aabac at position 7
.aacaaabaabac.aa
	rule a ->  at position 7
.aacaaababac.aa
	rule a ->  at position 7
.aacaaabbac.aa
	rule a ->  at position 8
.aacaaabbc.aa
	rule ca -> aabac at position 8
.aacaaabbaabac.a
	rule a ->  at position 8
.aacaaabbabac.a
	rule a ->  at position 8
.aacaaabbbac.a
	rule bbb -> c at position 6
.aacaaacac.a
	rule ca -> aabac at position 6
.aacaaaaabacc.a
	rule a ->  at position 9
.aacaaaaabcc.a
	rule ca -> aabac at position 10
.aacaaaaabcaabac.
	rule ca -> aabac at position 9
.aacaaaaabaabacabac.
	rule a ->  at position 9
.aacaaaaababacabac.
	rule a ->  at position 9
.aacaaaaabbacabac.
	rule a ->  at position 10
.aacaaaaabbcabac.
	rule ca -> aabac at position 10
.aacaaaaabbaabacbac.
	rule a ->  at position 10
.aacaaaaabbabacbac.
	rule a ->  at position 10
.aacaaaaabbbacbac.
	rule bbb -> c at position 8
.aacaaaaacacbac.
	rule ca -> aabac at position 8
.aacaaaaaaabaccbac.