exhaustive {a,b}, n <= 14:   32766 strings
exhaustive {a,b,c}, n <= 9:  29523 strings
random, n <= 2000:           3000 strings
large dna      n = 1048576   naive / doubling / SA-IS agree
large bytes    n = 1048576   naive / doubling / SA-IS agree
large fib      n = 16384     naive / doubling / SA-IS agree
large rep      n = 16384     naive / doubling / SA-IS agree
large unary    n = 16384     naive / doubling / SA-IS agree
large mmworst  n = 16384     naive / doubling / SA-IS agree
all tests passed (0 failures)