Loop of length 10 starting with a string of length 9
found after enumerating 2074 derivations:

.cc.aaaacaa
	rule cc -> b at position 0
.b.aaaacaa
	rule ba -> aacb at position 0
.aacb.aaacaa
	rule ba -> aacb at position 3
.aacaacb.aacaa
	rule a ->  at position 3
.aacacb.aacaa
	rule a ->  at position 3
.aaccb.aacaa
	rule ba -> aacb at position 4
.aaccaacb.acaa
	rule ba ->  at position 7
.aaccaac.caa
	rule cc -> b at position 6
.aaccaab.aa
	rule ba -> aacb at position 6
.aaccaaaacb.a
	rule ba -> aacb at position 9
.aaccaaaacaacb.