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| /// | ||
| /// ```aeneas | ||
| /// spec padding_lt_alignment | ||
| /// ensures p => (p : Nat) < (align : Nat) |
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The new contract only bounds p; it never relates the result to len. For example, with len = 1 and align = 8, an implementation returning 0 satisfies this specification even though len + p is not aligned and the function's documentation and Kani contract require padding to the next multiple. Add the power-of-two premise and the corresponding congruence postcondition so the Aeneas proof checks the function's intended behavior.
AGENTS.md reference: zerocopy/AGENTS.md:L58-L59
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| /// ```aeneas | ||
| /// spec round_down_spec | ||
| /// requires h : (align : Nat).isPowerOfTwo | ||
| /// ensures m => (m : Nat) ≤ (n : Nat) ∧ (m : Nat) % (align : Nat) = 0 |
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This postcondition permits any aligned value below n, not the largest one promised by the function documentation and the adjacent Kani contract. With n = 9 and align = 8, returning 0 satisfies the Aeneas contract even though the required result is 8; include the maximality condition, such as requiring the next aligned value to exceed n when it is representable.
AGENTS.md reference: zerocopy/AGENTS.md:L58-L59
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| "runtime_binary_sha256": {name: digest(tools / name) for name in | ||
| ["charon", "charon-driver", "rust/bin/rustc", | ||
| "rust/bin/cargo", "lean/bin/lean", "lean/bin/lake"]}, | ||
| "libraries": {p.name: digest(p) for p in sorted((tools / "libs").glob("*.dylib"))}} |
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When setup.sh reuses an existing toolchain, validate compares this record, but the record hashes only selected executables and tools/libs/*.dylib; it omits the Lean backend consumed by prepare.share_manifest and the shared libraries under lean/lib and rust/lib. Consequently, changing a cached backend definition or Linux runtime library leaves provenance unchanged and the installation is reported as validated even though subsequent extraction or proof checking uses altered code. Include these directories in the recorded content identity, or revalidate the archive that supplied them.
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Make a specification beside a Rust item a mandatory CI claim about that item's extracted implementation. Parse doc fences with their syntax owners, audit every reserved fence independently, and bind each specification to the inspected function signature and original arguments. Keep proofs in ordinary Lean theorems outside Rust. Recursively decode extracted values into mathematical carriers. Inline type models may refine decoded fields; ordinary clauses use those values and raw clauses retain the representations. Retain generic modeling providers explicitly and require every successful result to decode before checking its postconditions. A shared composition helper carries execution through the retained mathematical decoder, preserving failures and divergence; its total and partial contract rules match the separate decoding checks. Preserve nominal tuple structs through the checked-in patch exposing Aeneas's existing setting. Use Anneal's pinned toolchain to extract the four initial arithmetic helpers. Compare complete generated modules with checked-in goldens, then build and audit proofs independently against golden and live definitions. Check contract adequacy against separately written expectations for arbitrary execution outcomes, so a weaker but provable spec cannot satisfy an existing expectation unnoticed. Check in the assembled model shapes, decoders and specifications as review snapshots. CI regenerates and compares them exactly, while compiling proofs from fresh Rust-derived annotation sources. Add a stable native Lean editing project, source maps and guarded copy-back to the owning Rust comments. Preserve unchanged generated timestamps and use native incremental module checks for provisional editing feedback. Keep the final command separate: it rebuilds every mutable source against both models and runs all binding, proof-dependency and axiom checks. Run rejection controls in bounded, isolated families. Freeze independently verified baselines, reuse them for metadata-only mutations, and rebuild semantic mutations from current sources. Retain exact statuses, logs and timings, including interrupted work. Optionally share pinned toolchain installations using complete input identities and validated payloads; publish each cache entry atomically without replacing an existing entry. Document the interpretation, trust boundary and deferred design work. These checks establish conditional functional claims rather than whole-crate unsafe soundness. gherrit-pr-id: G5ql2xwdsnzdupc5d4auj6l5vgi5okgrc Agent-authored-by: AI agent acting on joshlf's behalf
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Make a specification beside a Rust item a mandatory CI claim about that
item's extracted implementation. Parse doc fences with their syntax owners,
audit every reserved fence independently, and bind each specification to
the inspected function signature and original arguments. Keep proofs in
ordinary Lean theorems outside Rust.
Recursively decode extracted values into mathematical carriers. Inline type
models may refine decoded fields; ordinary clauses use those values and
raw clauses retain the representations. Retain generic modeling providers
explicitly and require every successful result to decode before checking
its postconditions. A shared composition helper carries execution through
the retained mathematical decoder, preserving failures and divergence;
its total and partial contract rules match the separate decoding checks.
Preserve nominal tuple structs through the checked-in patch exposing
Aeneas's existing setting.
Use Anneal's pinned toolchain to extract the four initial arithmetic
helpers. Compare complete generated modules with checked-in goldens, then
build and audit proofs independently against golden and live definitions.
Check contract adequacy against separately written expectations for
arbitrary execution outcomes, so a weaker but provable spec cannot satisfy
an existing expectation unnoticed.
Check in the assembled model shapes, decoders and specifications as
review snapshots. CI regenerates and compares them exactly, while
compiling proofs from fresh Rust-derived annotation sources.
Add a stable native Lean editing project, source maps and guarded copy-back
to the owning Rust comments. Preserve unchanged generated timestamps and
use native incremental module checks for provisional editing feedback.
Keep the final command separate: it rebuilds every mutable source against
both models and runs all binding, proof-dependency and axiom checks.
Run rejection controls in bounded, isolated families. Freeze independently
verified baselines, reuse them for metadata-only mutations, and rebuild
semantic mutations from current sources. Retain exact statuses, logs and
timings, including interrupted work. Optionally share pinned toolchain
installations using complete input identities and validated payloads;
publish each cache entry atomically without replacing an existing entry.
Document the interpretation, trust boundary and deferred design work.
These checks establish conditional functional claims rather than
whole-crate unsafe soundness.
Authored by an AI agent acting on joshlf's behalf.
Latest Update: v31 — Compare vs v30
📚 Full Patch History
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git fetch origin refs/heads/G5ql2xwdsnzdupc5d4auj6l5vgi5okgrc && git checkout -b pr-G5ql2xwdsnzdupc5d4auj6l5vgi5okgrc FETCH_HEADCheckout
git fetch origin refs/heads/G5ql2xwdsnzdupc5d4auj6l5vgi5okgrc && git checkout FETCH_HEADCherry Pick
git fetch origin refs/heads/G5ql2xwdsnzdupc5d4auj6l5vgi5okgrc && git cherry-pick FETCH_HEADPull
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