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deepmind.google·6d ago
AI Engineering
Hacker News·Sep 8·5 min read
C*: Unifying Programming and Verification in C
TL;DR
C* is a proof-integrated programming language that extends C, enabling real-time verification of code through embedded proof-code blocks. It effectively bridges the gap between programming and verification, demonstrating strong capabilities in verifying complex C programming idioms.
✦ Why It Matters
Start using C* to integrate verification directly into your C programming workflow today.
Key Takeaways
- Explore C* for integrating verification into existing C codebases.
- Utilize proof-code blocks to enhance real-time verification processes.
- Leverage reusable libraries for logical definitions in C*.
- Evaluate C* on your own projects to reduce verification costs.
How It Works
C* allows programmers to write proof-code alongside their implementation code, which is facilitated by a symbolic execution engine that analyzes program behavior. The LCF-style proof kernel ensures that proofs are constructed in a sound manner, enabling interactive updates to the proof state as the code evolves.
This integration allows for immediate feedback on the correctness of the code, bridging the gap between programming and formal verification.