kani-0.8.0

Kani Rust verifier release bundle version 0.8.0.

Breaking Changes

• Users previously implementing the Kani Invariant trait should switch to using Arbitrary. The tutorial has been updated with the new recommended approach.

What's Changed

• Replace CBMC output parser by @adpaco-aws in #1433
• Replace struct impl of Invariant by Arbitrary by @celinval in #1401
• Deprecate any_raw and Invariant by @celinval in #1415
• Add basic support for async/.await by @fzaiser in #1414
• Add a kani::futures library containing block_on by @fzaiser in #1427
• Support ThreadLocalRef by @fzaiser in #1452
• Use #[kani::proof] for both sync and async functions by @fzaiser in #1471
• Cargo kani now uses the workspace's target directory by @YoshikiTakashima in #1421
• Disable --slice-formula when generating traces and add a flag by @jaisnan in #1479
• Fix kani's overridding of print macros by @zhassan-aws in #1446
• (Optimization) Use CBMC's arithmetic operators that return both the result and whether it overflowed by @zhassan-aws in #1426
• (Improve trace quality) Cleanup rvalue_repeat by @danielsn in #1458
• (Improve trace quality) Cleanup TagEncoding::Direct by @danielsn in #1457
• Bump CBMC Viewer to 3.6 by @tedinski in #1405
• Bump CBMC to 5.63.0 by @zhassan-aws in #1463

Full Changelog: kani-0.7.0...kani-0.8.0

kani-0.7.0

Kani Rust verifier release bundle version 0.7.0.

What's Changed

• Add additional workaround for Ubuntu 18.04 by @tedinski in #1371
• Remove PtrWrite hook by @danielsn in #1176
• Remove ReadPtr hook by @danielsn in #1189
• Produce more pretty names by @fzaiser in #1310
• Fix unreachable!() override macro + new tests by @celinval in #1372
• Fix static variable malformed symbol by @celinval in #1380
• Fix codegen of skipped functions by @celinval in #1382
• Add option to run CBMC sanity checks + set is_param for function parameters by @celinval in #1387
• Implement support for generators by @fzaiser in #1378
• Fix compilation of panic!() when the arg is another macro. by @celinval in #1407
• Update toolchain to nightly-2022-07-19 by @celinval in #1399

Full Changelog: kani-0.6.0...kani-0.7.0

kani-0.6.0

Kani Rust verifier release bundle version 0.6.0.

What's Changed

• Get Kani to run on Apple M1 by @ssoudan in #1323
• Implements any_vec::<LENGTH, T>() by @YoshikiTakashima in #1319
• Add support to all object-safe receiver types by @celinval in #1326
• Add support for volatile_load intrinsic by @adpaco-aws in #1347
• Fix bug that affected closures by @fzaiser in #1338
• Update kani's std library to use rust 2021 by @celinval in #1352
• Update toolchain to 2022-07-05 by @celinval in #1340
• Bump to CBMC 5.61 by @tedinski in #1357

Full Changelog: kani-0.5.0...kani-0.6.0

kani-0.5.0

Kani Rust verifier release bundle version 0.5.0.

What's Changed

• Detect VSCode Remote-SSH when using --visualize and recommend its port-forwarding feature by @tedinski in #1292
• Add support for installing on NixOS by @tedinski in #1298
• Bump to CBMC 5.60 by @tedinski in #1305

Full Changelog: kani-0.4.0...kani-0.5.0

kani-0.4.0

Kani Rust verifier release bundle version 0.4.0.

What's Changed

• Enable CBMC's equation-level slicer by @zhassan-aws in #1252
• Report CBMC verification time by @zhassan-aws in #1247
• Support crate-type=bin and --tests with dependencies by @tedinski in #1260
• Bump CBMC version to 5.59.0 by @adpaco-aws in #1270
• Bump CBMC viewer version to 3.5 by @zhassan-aws in #1261
• Update Rust Toolchain to 2022-06-09 by @tedinski in #1272

Full Changelog: kani-0.3.0...kani-0.4.0

kani-0.3.0

Kani Rust verifier release bundle version 0.3.0.

What's Changed

• Add support for Ubuntu 18.04 to installer by @tedinski in #1231
• Fix how we handle niche optimization with ZST by @celinval in #1205
• Add support for atomic_min* and atomic_umin* intrinsics by @adpaco-aws in #1212
• Add support for atomic_max* and atomic_umax* intinsics by @adpaco-aws in #1232
• Bump CBMC version to 5.58.1 by @zhassan-aws in #1229
• Update rust toolchain to 2022-05-17 by @celinval in #1209

Full Changelog: kani-0.2.0...kani-0.3.0

kani-0.2.0

Kani 0.2 (2022-05-17)

• Kani now installs on Ubuntu 18.04 without needing a newer version of Python. (Minimum requirement reduced to Python 3.6, thanks to updating to cbmc-viewer 3.2.) #1171 (There may be a new issue installing on Ubuntu 18.04 besides the need for a newer Python.)
• Fixed the bug that prevented Kani from building crates with a build.rs. #1187
• cargo kani --version now works outside of a crate. #1192
• The version of Rust nightly Kani uses is now nightly-2022-05-03. #1181
• cargo kani setup will work even if it has already been performed. #1193
• Kani now supports comparing pointers to slices and flags code that relies on unstable vtable comparison. #1195

kani-0.1.0

Kani 0.1 (2022-05-03)

• First release!
• Supported features:
  • Proof harnesses (#[kani::proof])
  • Unwind annotations (#[kani::unwind(3)])
  • Assume statements (kani::assume(boolean-expr))
  • Symbolic values (kani::any::<T>() and kani::AnySlice)
  • Arbitrary and Invariant types (kani::Arbitrary and kani::Invariant)
  • Counterexample extraction (--visualize)
  • Cargo integration (cargo kani)
  • Reachability check