Proof-Driven Software Understanding: Formal Analysis of Stellar Blockchain Code Using LLMs and Theorem Proving
Researchers conducted a case study applying formal methods to the mature C++ codebase of the Stellar blockchain's SDEX order book algorithm. By integrating large language models (LLMs), the Prototype Verification System (PVS), and SeaHorn, they proved core properties of the production code and uncovered a documentation inconsistency. The study demonstrates that theorem proving and model checking can be effectively used to provide assurance for legacy, security-critical systems.
Why it matters: This work illustrates a practical approach for applying formal verification to existing, security-critical software, potentially improving reliability without requiring a complete redesign.
Full story at: arXiv Software Engineering ↗