ludic/changes/deps-reach-32-bits.md

bump: patch type: fix ludic deps: a reach counts every state apart, however the states are numbered. The reach and write-reach bitsets packed 60 states to a word, but an int is 32 bits, so 1 << 45 came back as bit 13 and states 32 apart shared a bit: a function taking both counted one, fewer than it takes, and the counts (widest_reach, widest_write_reach, --reach, --wreach) rose and fell with how a program's states happened to be numbered. The sets now hold 30 to a word. On Maroon Lake widest_reach goes 58 -> 76 and widest_write_reach 54 -> 64 - the real numbers, which the old count hid. examples/state/reach_wide.ludic (40 states, S00 and S32 taken together) holds it.