saymrwulf/ltl-accumulator-verified
1
0
Fork 0
mirror of https://github.com/saymrwulf/ltl-accumulator-verified.git synced 2026-09-03 19:53:48 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

verification: lifted phases run under the buttons shell options, enforced in lift-guard

Browse source 
A lift is evidence about the shipping gate only if it executes the way the
shipping gate executes. Every button here runs `set -euo pipefail`. Eighteen
lift sites prefixed their driver with `set -uo pipefail` and no -e — four per
fork (selftest-harness, selftest-scalar-statements, selftest-statements twice)
and both accumulator lifts — while sixteen other sites got it right. The estate
did it both ways, which is what made this a defect and not a convention.

Without -e a failing command does not abort: execution continues and the driver
returns the LAST command status. A lifted phase can therefore reach a verdict
the shipping phase would never reach while the self-test reports the gate
"works". selftest_statements.sh:27 claims the tested logic IS the shipping
logic; in this respect it was not.

NO VERDICT CHANGED. Every self-test that passed before passes now, at the same
timings, so -e was not masking a false green at these commits. The defect was
fidelity and the claim is no larger than that.

The durable part is not the 18 edits. lift-guard.sh already inspects every
driver, so it now REFUSES any lift whose driver does not enable errexit and
prints the drivers actual shell options. Negative-tested four ways: no -e
rejects, `set -euo` passes, bare `set -e` passes, no set line at all rejects.
Byte-identical across the four forks. The nineteenth lift someone writes fails
closed rather than silently testing a more permissive shell.

Certified by the round-15 sweep: 50/50 GREEN, six repositories, both buttons
and every self-test, exit 0.

Registered and NOT fixed here: ltl-accumulator-verified has no lift-guard.sh
at all and calls it zero times, so its two lifts remain unguarded — the one
place this class can still recur silently.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
mrwulf 2026-08-04 12:58:29 +02:00
parent 888796a16e
commit a0d11b44d9
3 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
verification/HARNESS.sha256
View file

@ -14,5 +14,5 @@ eda93f520546a692926b2a46bcb79332e1795879e5083327a8bf2404aca5cf87 Proofs/AxiomCh
82d41c634a2e9adfc2cc74c202d025e57411687796f820765d45608f3fb4cb20 Proofs/Inventory.lean 82d41c634a2e9adfc2cc74c202d025e57411687796f820765d45608f3fb4cb20 Proofs/Inventory.lean
0b8a0fc6947af1d1e600a756eb2b07dc88d189b21df3220c4501a41be8b33f1e run_bare.sh 0b8a0fc6947af1d1e600a756eb2b07dc88d189b21df3220c4501a41be8b33f1e run_bare.sh
473e2463d9c26653c8435ad6758044742f200eb13ea0db4b8f076466c08bd87a selftest_audit.sh 473e2463d9c26653c8435ad6758044742f200eb13ea0db4b8f076466c08bd87a selftest_audit.sh
3d5898161d663eccad162269a5a6c102319077e22e1f2d89a8bfcab6926d29f6 selftest-harness.sh 5d2792996d5164022591f116ce9cbd03cdee8c9b886eb4aac6fa49c9de2bac32 selftest-harness.sh
cf6d4d8210e224a054d4ab693c28c83e7a9ddebda05da47d6ec311d825a606c0 selftest_statements.sh b4a3ea633ac8a38c699e10b55b040718567cb60c5f7c7439c0c9720d4c9f8554 selftest_statements.sh

2
verification/selftest-harness.sh
View file

@ -40,7 +40,7 @@ cp "$HERE/HARNESS.sha256" "$STASH/HARNESS.sha256"
# either terminator rather than hardcoding one and silently lifting nothing. # either terminator rather than hardcoding one and silently lifting nothing.
DRIVER="$STASH/phase0c.sh" DRIVER="$STASH/phase0c.sh"
{ {
echo 'set -uo pipefail' echo 'set -euo pipefail' # -e matches the button; see lift-drivers-drop-errexit
echo "HERE=\"$HERE\"" echo "HERE=\"$HERE\""
awk '/^# ── Phase 0c/{f=1} f{print} /^# ── Phase 1|^echo "=== Phase 1/{if(f && !/Phase 0c/) exit}' "$HERE/check.sh" \ awk '/^# ── Phase 0c/{f=1} f{print} /^# ── Phase 1|^echo "=== Phase 1/{if(f && !/Phase 0c/) exit}' "$HERE/check.sh" \
| sed '/^# ── Phase 1/d; /^echo "=== Phase 1/d' | sed '/^# ── Phase 1/d; /^echo "=== Phase 1/d'

2
verification/selftest_statements.sh
View file

@ -48,7 +48,7 @@ cp "$T/AUDIT-MANIFEST.txt" "$T/MANIFEST.pristine"
# two variables it reads from its surroundings. # two variables it reads from its surroundings.
DRIVER="$T/phase3d.sh" DRIVER="$T/phase3d.sh"
{ {
echo 'set -uo pipefail' echo 'set -euo pipefail' # -e matches the button; see lift-drivers-drop-errexit
echo "HERE=\"$T\"" echo "HERE=\"$T\""
echo 'INVLOG="$1"' echo 'INVLOG="$1"'
sed -n '/^# -- Phase 3d/,/^# -- Phase 4/p' "$SRC/check.sh" | sed '$d' sed -n '/^# -- Phase 3d/,/^# -- Phase 4/p' "$SRC/check.sh" | sed '$d'