Loop of length 17 starting with a string of length 8
found after enumerating 3098 derivations:

.cc.acacac
	rule cc -> bab at position 0
.bab.acacac
	rule ba -> ac at position 2
.baac.cacac
	rule aa -> b at position 1
.bbc.cacac
	rule cc -> bab at position 2
.bbbab.acac
	rule ba -> ac at position 4
.bbbaac.cac
	rule aa -> b at position 3
.bbbbc.cac
	rule cc -> bab at position 4
.bbbbbab.ac
	rule ba -> ac at position 4
.bbbbacb.ac
	rule ba -> ac at position 3
.bbbaccb.ac
	rule ba -> ac at position 2
.bbacccb.ac
	rule ba -> ac at position 1
.baccccb.ac
	rule cc -> bab at position 4
.baccbabb.ac
	rule ba -> ac at position 4
.baccacbb.ac
	rule ba -> ac at position 7
.baccacbac.c
	rule ba -> ac at position 6
.baccacacc.c
	rule cc -> bab at position 8
.baccacacbab.
	rule ba -> ac at position 8
.baccacacacb.