Loop of length 24 starting with a string of length 11
found after enumerating 1150047 derivations:

.a.abcabccbcc
	rule a -> b at position 0
.b.abcabccbcc
	rule babc -> ccaaaa at position 0
.ccaaaa.abccbcc
	rule a -> b at position 2
.ccbaaa.abccbcc
	rule a -> b at position 4
.ccbaba.abccbcc
	rule a -> b at position 5
.ccbabb.abccbcc
	rule babc -> ccaaaa at position 5
.ccbabccaaaa.cbcc
	rule babc -> ccaaaa at position 2
.ccccaaaacaaaa.cbcc
	rule a -> b at position 5
.ccccabaacaaaa.cbcc
	rule a -> b at position 7
.ccccababcaaaa.cbcc
	rule babc -> ccaaaa at position 5
.ccccaccaaaaaaaa.cbcc
	rule a -> b at position 9
.ccccaccaabaaaaa.cbcc
	rule a -> b at position 11
.ccccaccaababaaa.cbcc
	rule a -> b at position 12
.ccccaccaababbaa.cbcc
	rule a -> b at position 14
.ccccaccaababbab.cbcc
	rule babc -> ccaaaa at position 12
.ccccaccaababccaaaa.bcc
	rule babc -> ccaaaa at position 9
.ccccaccaaccaaaacaaaa.bcc
	rule a -> b at position 14
.ccccaccaaccaaabcaaaa.bcc
	rule a -> b at position 17
.ccccaccaaccaaabcabaa.bcc
	rule a -> b at position 18
.ccccaccaaccaaabcabba.bcc
	rule babc -> ccaaaa at position 18
.ccccaccaaccaaabcabccaaaa.c
	rule a -> b at position 20
.ccccaccaaccaaabcabccbaaa.c
	rule a -> b at position 21
.ccccaccaaccaaabcabccbbaa.c
	rule a -> b at position 23
.ccccaccaaccaaabcabccbbab.c
	rule babc -> ccaaaa at position 21
.ccccaccaaccaaabcabccbccaaaa.