Loop of length 34 starting with a string of length 11
found after enumerating 2053676 derivations:

.b.cacccaccac
	rule b -> caa at position 0
.caa.cacccaccac
	rule acac -> bcb at position 2
.cabcb.ccaccac
	rule b -> caa at position 2
.cacaacb.ccaccac
	rule a ->  at position 3
.cacacb.ccaccac
	rule acac -> bcb at position 1
.cbcbb.ccaccac
	rule b -> caa at position 3
.cbccaab.ccaccac
	rule b -> caa at position 6
.cbccaacaa.ccaccac
	rule a ->  at position 7
.cbccaaca.ccaccac
	rule acac -> bcb at position 5
.cbccabcb.caccac
	rule b -> caa at position 5
.cbccacaacb.caccac
	rule a ->  at position 6
.cbccacacb.caccac
	rule acac -> bcb at position 4
.cbccbcbb.caccac
	rule b -> caa at position 6
.cbccbccaab.caccac
	rule b -> caa at position 9
.cbccbccaacaa.caccac
	rule acac -> bcb at position 11
.cbccbccaacabcb.cac
	rule b -> caa at position 11
.cbccbccaacacaacb.cac
	rule acac -> bcb at position 8
.cbccbccabcbaacb.cac
	rule b -> caa at position 8
.cbccbccacaacbaacb.cac
	rule a ->  at position 9
.cbccbccacacbaacb.cac
	rule acac -> bcb at position 7
.cbccbccbcbbaacb.cac
	rule b -> caa at position 10
.cbccbccbcbcaaaacb.cac
	rule a ->  at position 11
.cbccbccbcbcaaacb.cac
	rule a ->  at position 11
.cbccbccbcbcaacb.cac
	rule a ->  at position 11
.cbccbccbcbcacb.cac
	rule b -> caa at position 13
.cbccbccbcbcaccaa.cac
	rule acac -> bcb at position 15
.cbccbccbcbcaccabcb.
	rule b -> caa at position 15
.cbccbccbcbcaccacaacb.
	rule a ->  at position 16
.cbccbccbcbcaccacacb.
	rule acac -> bcb at position 14
.cbccbccbcbcaccbcbb.
	rule b -> caa at position 14
.cbccbccbcbcacccaacbb.
	rule a ->  at position 15
.cbccbccbcbcacccacbb.
	rule b -> caa at position 17
.cbccbccbcbcacccaccaab.
	rule a ->  at position 18
.cbccbccbcbcacccaccab.
	rule b -> caa at position 19
.cbccbccbcbcacccaccacaa.