Pure bitstring target for the uniform Barrington generator #
This file fixes the total function that a log-space transducer must realize.
It decodes a canonical postfix Boolean formula, runs the executable Barrington
compiler at the fixed target 5-cycle, and serializes the resulting width-5
program. Malformed formula codes map to the empty string; valid program codes
are always nonempty because they start with an instruction-count field.