Loop of length 16 starting with a string of length 8
found after enumerating 72827 derivations:

.aa.cccccc
	rule aa -> cb at position 0
.cb.cccccc
	rule bc -> cab at position 1
.ccab.ccccc
	rule bc -> cab at position 3
.ccacab.cccc
	rule c ->  at position 3
.ccaab.cccc
	rule bc -> cab at position 4
.ccaacab.ccc
	rule bc -> cab at position 6
.ccaacacab.cc
	rule c ->  at position 6
.ccaacaab.cc
	rule aa -> cb at position 5
.ccaaccbb.cc
	rule bc -> cab at position 7
.ccaaccbcab.c
	rule bc -> cab at position 6
.ccaacccabab.c
	rule b ->  at position 8
.ccaacccaab.c
	rule aa -> cb at position 7
.ccaaccccbb.c
	rule bc -> cab at position 9
.ccaaccccbcab.
	rule bc -> cab at position 8
.ccaacccccabab.
	rule b ->  at position 10
.ccaacccccaab.
	rule aa -> cb at position 9
.ccaaccccccbb.