crytic / crytic/echidna

Refined formal verification support

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#1,625 0 comments 0 reactions 0 assignees View on GitHub
2026 roadmap
Dominant language
Haskell
Stars
3.2k
Forks
432
Avg merge
1d 20h
Merged PRs (30d)
5

Description

Improve support for proving difficult properties through hevm. Combine fuzzing and symbolic execution more effectively, start symbolic exploration from states discovered by fuzzing, improve solver scheduling and resource limits, close compatibility gaps between property, Foundry and verification modes, and produce stable counterexamples that can be replayed and minimized.

Related issues and PRs:
- [ ] #1621
- [ ] #1538 / #1537
- [ ] #1510

Optionally:
- [ ] #1409

Contributor guide

Open the contributing guide

Research direction

Start by reviewing hevm support and the related issues and PRs #1621, #1538, #1537, and #1510; optionally review #1409. Define the scope for combining fuzzing with symbolic execution, solver limits, mode compatibility, and replayable minimized counterexamples before implementation.

Written by the indexing model from the issue text.

Assessment

Tech stack
haskell, solidity
Domain
blockchain, security, testing
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
25/100

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