Harnesses whose windows the checker did not finish within their cap (ten or
twenty minutes on an idle 32-core host) are gated by cfg(kani_open): kept in
the source with their statements, compiled and run only on request
(RUSTFLAGS="--cfg kani_open" cargo kani --lib --exact --harness <name>), so
that every harness CI compiles verifies. check_shards.py counts them apart.
wai-verify declares the cfg.
The shards, from the measured times: the wai-rs harnesses; arith and limb;
the two 512-bit isqrt harnesses; the stage harnesses; the two longest stage
harnesses (K26, and K29 over every range, renamed so a filter names it alone);
sound; plan.
Co-Authored-By: Claude Opus 5.5 <[email protected]>