Generation 37000
Score: 72.64 % 900/201/138 426308/173703/1370284
RawCode:
+++>++>-->++>+>->->->++>-[+]++>-[+]+-->-[+][++]++++->-[+]++>-[+]+++>-[+]+>-[+]+>-[+]->-[+]+++>-[+]++>-[+][++[++]]++>-[+][+<+]++++->-[+]++>-[+]+++>-[+][++[+]]++>-[+]+++>-[+][+]+++>-[+]++>-[+][+-+-[+]]++>-[+][++][++]+>-[+++]<

TightCode:
+++>++>-->++>+>->->->++>-[+]++>-[+]->-[+][++]+++>-[+]++>-[+]+++>-[+]+>-[+]+>-[+]->-[+]+++>-[+]++>-[+][++[++]]++>-[+][+<+]+++>-[+]++>-[+]+++>-[+][++[+]]++>-[+]+++>-[+][+]+++>-[+]++>-[+][[+]]++>-[+][++][++]+>-[+++]<

Generation 37000 (114)
72.64 % 900/201/138 426308/173703/1370284 is the score for prog with leng 223
Generation 37000 took 1627 ms
Exception in thread "main" java.lang.IllegalArgumentException: n must be positive
	at java.util.Random.nextInt(Random.java:300)
	at com.coltsoftware.brainfuckgenetics.Genetics.mutate(Genetics.java:216)
	at com.coltsoftware.brainfuckgenetics.Genetics.createNextSuperGeneration(Genetics.java:155)
	at com.coltsoftware.brainfuckgenetics.Genetics.go(Genetics.java:50)
	at com.coltsoftware.brainfuckgenetics.Main.main(Main.java:18)