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@github-actions github-actions released this 26 Feb 19:20
· 409 commits to main since this release
a39b1c0

Changed

  • Minimum distance requirements are now asserted for Keccak function calls. They assert that it's hard to generate two Keccak's that are less than 256 afar.
  • Keccak concretization is now done only after all simplifications are performed. This helps with simplification pre-concretization
  • Added an IllegalOverflow error in case the system tries to allocate a large amount of memory during
    abstract gas execution but concrete running. In these cases, the interpreter can out-of-heap
    as the only check is that the size allocated is less than $2**{64}$, but that is too large to fit in memory. Now,
    we check more stringently, and still return an IllegalOverflow
  • Fixed --root option for the test subcommand

Added

  • Optimized smt queries that significantly improve performance when dealing with solidity mappings and arrays
  • Support for using Bitwuzla as a solver
  • More efficient encoding for failure in ds-test style tests
  • Symbolic tests now support statically sized arrays as parameters
  • hevm test now has a num-solvers parameter that controls how many solver instances to spawn
  • New solc-specific simplification rules that should make the final Props a lot more readable
  • Prop is now correctly ordered, better BufLength and Max simplifications of Expr,
    and further solc-specific simplifications of Expr
  • Simplify earlier and don't check reachability for things statically determined to be FALSE
  • New concrete fuzzer that can be controlled via --num-cex-fuzz
  • Partial support for dynamic jumps when the jump destination can be computed
    given already available information
  • Added three forking cheatcodes: createFork, selectFork, and activeFork

Fixed

  • Traces now correctly perform source mapping to display contract details
  • Event traces now correctly display indexed arguments and argument names
  • JSON reading of foundry JSONs was dependent on locale and did not work with many locales.
  • CVC5 needs --incremental flag to work properly in abstraction-refinement mode