PHASE 5b — COMPARATOR EXIT STATUS

Two runs were performed. Both are recorded, per audit rule 6.

================================================================
RUN 1 — REAL landrun SANDBOX          EXIT STATUS: 1  (FAILED)
================================================================
Started : 2026-08-06T08:03:31.90-04:00
Command : cd /root/audits/pinned
          COMPARATOR_LEAN4EXPORT=<...>/lean4export \
          lake env <...>/comparator ComparatorChallenges/E_ConnesRigidity.json
          (landrun resolved from PATH = /usr/local/bin/landrun v0.1.18)
Elapsed : 0:36.15   User 22.03s  Sys 7.72s  Peak RSS 6,726,788 KB

Failure:
    uncaught exception: unknown module prefix 'Nat'
    No directory 'Nat' or file 'Nat.olean' in the search path entries: ...
    uncaught exception: Child exited with 1

CLASSIFICATION: DEPENDENCY / TOOLING FAILURE.
Not a source failure, not a repository build failure, and not a resource
failure. Diagnosis in comparator_replay_provenance.txt.

================================================================
RUN 2 — fake-landrun SHIM (NO SANDBOX)   EXIT STATUS: 0  (PASSED)
================================================================
Started : 2026-08-06T08:06:12.19-04:00
Command : cd /root/audits/pinned
          COMPARATOR_LEAN4EXPORT=<...>/lean4export \
          COMPARATOR_LANDRUN=<...>/Comparator/scripts/fake-landrun.sh \
          lake env <...>/comparator ComparatorChallenges/E_ConnesRigidity.json
Elapsed : 4:29.43   User 250.27s  Sys 14.56s  Peak RSS 6,889,668 KB (6.57 GiB)
Swaps   : 0

EXIT STATUS: 0

Comparator performed and passed all of:
  - replay of the CHALLENGE environment through the Lean kernel
      "[8655/8655] Replayed ComparatorChallenges.E_ConnesRigidity"
  - build of the SOLUTION module
      "Building ConnesRigidity" / "Build completed successfully (8656 jobs)"
  - export of the solution environment restricted to the target constants
  - independent re-check with the nanoda kernel
      "Running nanoda kernel on solution"
      "Nanoda kernel accepts the solution"

RUN 2 IS THE ONE THAT PRODUCED SUBSTANTIVE RESULTS, AND ITS SANDBOX WAS
DISABLED. See comparator_replay_provenance.txt for exactly what that does
and does not weaken. The short version: the sandbox protects a trusted
CHALLENGE from a hostile SOLUTION during compilation. It is not what makes
the statement comparison, the axiom whitelist, or the kernel replay
meaningful — those are performed on exported proof terms and are unaffected
by whether the compile step was sandboxed. But Comparator's stated
end-to-end guarantee is conditioned on the sandbox, so this run does NOT
demonstrate that full guarantee.
