💡C* Unifies Programming and Verification in C, April 3, 2025
C* makes formal verification accessible to everyday coders
TL;DR
C* is a new language design for C that integrates verification directly into the code, making formal verification more accessible to programmers. It's powered by a symbolic execution engine and supports real-time proof updates, with a prototype showing promise in real-world scenarios.
C*, a new language design for C, integrates verification directly into the code, making formal verification more accessible to everyday programmers. This is a big deal for developers who need to ensure the correctness of their systems software but lack the expertise or tools to do so effectively. C* enables real-time verification by allowing programmers to embed proof-code blocks alongside implementation code, facilitating interactive updates to the proof state. The prototype was evaluated on small C programs and a challenging real-world case study, demonstrating its effectiveness in handling complex reasoning tasks. The paper was submitted to arXiv on April 3, 2025, with the identifier arXiv:2504.02246.
Key Points
C* extends C with verification capabilities, submitted to arXiv on April 3, 2025 (arXiv:2504.02246)
C* is powered by a symbolic execution engine and an LCF-style proof kernel
C* allows real-time verification by embedding proof-code blocks in C programs
Prototype evaluated on small C programs and a challenging real-world case study
Paper available in PDF and HTML formats, with DOI https://doi.org/10.48550/arXiv.2504.02246
Why It Matters
If you're developing systems software and need to ensure correctness but lack the expertise for formal verification, C* could be a game-changer. It integrates verification directly into the C programming language, making it more accessible to everyday coders. This could drastically reduce development and maintenance costs for verified software, while also improving the reliability of systems software.
Frequently Asked Questions
Why does this matter?
If you're developing systems software and need to ensure correctness but lack the expertise for formal verification, C* could be a game-changer. It integrates verification directly into the C programming language, making it more accessible to everyday coders. This could drastically reduce development and maintenance costs for verified software, while also improving the reliability of systems software.
What happened?
C* is a new language design for C that integrates verification directly into the code, making formal verification more accessible to programmers. It's powered by a symbolic execution engine and supports real-time proof updates, with a prototype showing promise in real-world scenarios.
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