Loop of length 11 starting with a string of length 9 found after enumerating 183 derivations: .cbb.bbbbbb rule cbb -> bbacc at position 0 .bbacc.bbbbbb rule cbb -> bbacc at position 4 .bbacbbacc.bbbb rule cbb -> bbacc at position 8 .bbacbbacbbacc.bb rule cbb -> bbacc at position 7 .bbacbbabbaccacc.bb rule ab -> bb at position 6 .bbacbbbbbaccacc.bb rule cbb -> bbacc at position 14 .bbacbbbbbaccacbbacc. rule cbb -> bbacc at position 13 .bbacbbbbbaccabbaccacc. rule ab -> bb at position 12 .bbacbbbbbaccbbbaccacc. rule cbb -> bbacc at position 11 .bbacbbbbbacbbaccbaccacc. rule cbb -> bbacc at position 10 .bbacbbbbbabbaccaccbaccacc. rule ab -> bb at position 9 .bbacbbbbbbbbaccaccbaccacc.