Loop of length 10 starting with a string of length 6
found after enumerating 3502 derivations:

.a.cbcbb
	rule a -> c at position 0
.c.cbcbb
	rule ccb -> bbaaa at position 0
.bbaaa.cbb
	rule a -> c at position 3
.bbaca.cbb
	rule a -> c at position 4
.bbacc.cbb
	rule ccb -> bbaaa at position 4
.bbacbbaaa.b
	rule b ->  at position 4
.bbacbaaa.b
	rule a -> c at position 5
.bbacbcaa.b
	rule a -> c at position 6
.bbacbcca.b
	rule a -> c at position 7
.bbacbccc.b
	rule ccb -> bbaaa at position 6
.bbacbcbbaaa.