ConVer: Using Contracts and Loop Invariant Synthesis for Scalable Formal Software Verification
Formal verification of large C programs is impeded by state-space explosion: Bounded Model Checking (BMC) tools must encode the entire state space up to the predetermined bound by unrolling all nested constructs. We present ConVer, a top-down compositional verification tool. Given a C program with a top-level assertion, ConVer decomposes verification top-down: it uses a large language model (LLM) to synthesise function contracts from the system property, then alternates system-level and function-level checks in a CEGAR-CEGIS loop, refining contracts whenever a check fails via SMART ICE learning. We evaluate ConVer on four benchmark suites of increasing difficulty and against other state-o...
| Authors | Muhammad A. A. Pirzada, Weiqi Wang, Yiannis Charalambous et al. |
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| Primary category | cs.SE |
| Published | 26 May 2026 |
| Last updated at source | 26 May 2026 |
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