ltl-accumulator-verified/verification/check.sh
mrwulf 67d9cfed43 S3.5 Fable re-audit: permanent non-vacuity witness + honest ledger
Adversarial re-derivation of S3.5 (drill after harness switch). Core
verdict CONFIRMED: extractIncl_correct is faithful and non-vacuous.
Three methodical flaws found and resolved:
- F1: the non-vacuity proof existed only as a deleted probe — evidence
  discarded. Now permanent: extractIncl_nonvacuous proves the
  extractor's output on a NON-forgery input is NOT a collision, so the
  correctness conclusion is false for some inputs and cannot be
  discharged by pigeonhole/choice. Guards against future drift back
  into vacuity. Cone pinned.
- F2 (queued for S4): deleting root_binding discarded the receipt-
  uniqueness content of Lemma 2 (left disjunct: P = Path m D) along
  with its vacuous disjunct. To be restored in extractor form during
  S4; the S4 consistency walk inlines the same argument regardless.
- F3: README still claimed 'root_binding done' — a deleted theorem
  advertised as delivered. Ledger corrected.

15 certs green. LTL untouched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-11 16:38:34 +02:00

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#!/usr/bin/env bash
# ─────────────────────────────────────────────────────────────────────────────
# check.sh — THE button (accumulator corpus). Same discipline as the
# *-ed25519-verified repos: compiles every shipped .lean through lean-guard
# and axiom-audits every certificate against its DOCUMENTED exact cone,
# both directions.
#
# Phases: 0 resource/integrity · 1 stub+axiom-smuggling audit ·
# 2 compile manifest · 3 boundary-exact axiom audit
# ─────────────────────────────────────────────────────────────────────────────
set -euo pipefail
source ~/aeneas-toolchain/env.sh
HERE="$(cd "$(dirname "$0")" && pwd)"
AENEAS_LEAN="$AENEAS_HOME/backends/lean"
TIMEOUT="${LEAN_TIMEOUT:-600}"
export LEAN_MEM_MB="${LEAN_MEM_MB:-4096}"
CORES="${LEAN_MAX_CORES:-0-3}"
GEN_MODULES=( LTLAcc/HashExternal )
PROOFS=( Basic Completeness Extract )
# Certificates and their exact expected cones (observed at first green
# compile, 2026-07-10; any drift in EITHER direction is a failure).
declare -A CONES=(
[LTLAcc.domsep]=""
[LTLAcc.kbelow_pos]="propext, Quot.sound"
[LTLAcc.kbelow_lt]="propext, Quot.sound"
[LTLAcc.le_two_kbelow]="propext, Quot.sound"
[LTLAcc.kbelow_pow2]="propext, Quot.sound"
[LTLAcc.MTH]="propext, LTLAcc.sha256, Quot.sound"
[LTLAcc.Root]="propext, LTLAcc.sha256, Quot.sound"
[LTLAcc.ConsRec]="propext, LTLAcc.sha256, Quot.sound"
[LTLAcc.Path]="propext, LTLAcc.sha256, Quot.sound"
[LTLAcc.incl_complete]="propext, Classical.choice, LTLAcc.sha256, Quot.sound"
[LTLAcc.hnode_preimage_inj]="propext"
[LTLAcc.IsCollision]="LTLAcc.sha256"
[LTLAcc.extractIncl]="propext, LTLAcc.sha256, Quot.sound"
[LTLAcc.extractIncl_correct]="propext, Classical.choice, LTLAcc.sha256, Quot.sound"
[LTLAcc.extractIncl_nonvacuous]="propext, LTLAcc.sha256, Quot.sound"
)
free -m | awk '/Mem:/{if($7<2048){print "FATAL: <2GB RAM available — refusing to compile"; exit 1}}'
echo "=== Phase 0: source integrity ==="
for f in "$HERE"/gen/LTLAcc/*.lean "$HERE"/Proofs/*.lean; do
[ -f "$f" ] || continue
if ! grep -qE '^(/-|import |namespace |theorem |def |noncomputable |open |set_option |--|abbrev )' "$f"; then
echo "CORRUPTED: $f is not Lean source. Restore: git checkout HEAD -- $f"; exit 1
fi
done
echo " all sources valid"
echo "=== Phase 1: stub + axiom-smuggling audit ==="
if grep -rn 'by trivial' "$HERE"/Proofs/*.lean 2>/dev/null; then
echo "STUB DETECTED"; exit 1; fi
if grep -rn ' : True :=' "$HERE"/Proofs/*.lean 2>/dev/null; then
echo "STUB DETECTED: True-target theorem"; exit 1; fi
if grep -rnE '^(private |protected |noncomputable )*axiom ' "$HERE"/Proofs/*.lean 2>/dev/null; then
echo "AXIOM SMUGGLING DETECTED: axiom under Proofs/ — gen/ is the only sanctioned site."; exit 1
fi
echo " clean"
echo "=== Phase 2: compile ==="
LOG=$(mktemp /tmp/acc-check-XXXX.log)
cd "$AENEAS_LEAN"
lake env bash -c "
set -euo pipefail
cd '$HERE/gen' && export LEAN_PATH=\"\$LEAN_PATH:\$PWD:$HERE\"
compile() {
echo \" · \$1\"
LEAN_TIMEOUT=$TIMEOUT LEAN_MAX_CORES=$CORES '$HERE/lean-guard' \"\${1}.lean\" 2>&1 | tee -a '$LOG' || { echo \"FAIL: \$1\"; exit 1; }
}
for m in ${GEN_MODULES[*]}; do compile \"\$m\"; done
cd '$HERE'
for m in ${PROOFS[*]}; do
[ -f \"Proofs/\$m.lean\" ] || { echo \"MISSING: Proofs/\$m.lean\"; exit 1; }
compile \"Proofs/\$m\"
done
for f in Proofs/*.lean; do
b=\$(basename \"\$f\" .lean)
[ \"\$b\" = AxiomCheck ] && continue
case \" ${PROOFS[*]} \" in (*\" \$b \"*) ;; (*) echo \"DEAD FILE: \$f\"; exit 1;; esac
done
"
if grep -q "uses 'sorry'" "$LOG"; then echo "STUB: sorry detected"; exit 1; fi
rm -f "$LOG"
echo "=== Phase 3: boundary-exact axiom audit ==="
AUD=$(mktemp /tmp/acc-audit-XXXX.log)
cd "$AENEAS_LEAN"
lake env bash -c "
cd '$HERE' && export LEAN_PATH=\"\$LEAN_PATH:$HERE/gen:$HERE\"
LEAN_TIMEOUT=300 LEAN_MAX_CORES=$CORES '$HERE/lean-guard' Proofs/AxiomCheck.lean
" > "$AUD" 2>&1 || { cat "$AUD"; exit 1; }
FAIL=0
for cert in "${!CONES[@]}"; do
want="${CONES[$cert]}"
if [ -z "$want" ]; then
exp="'$cert' does not depend on any axioms"
else
exp="'$cert' depends on axioms: [$want]"
fi
if ! grep -qF "$exp" "$AUD"; then
echo " CONE DRIFT: $cert"
echo " expected: $exp"
echo " observed: $(grep -F "'$cert'" "$AUD" || echo '(missing)')"
FAIL=1
else
echo "$cert [$want]"
fi
done
rm -f "$AUD"
[ "$FAIL" = 0 ] || exit 1
echo "=== ALL GREEN ==="