# LLM-based Software Verification

Proving software correct is often more expensive than writing it, and finished verification work rarely becomes a reusable theorem library. VeriBase treats code and its associated theorems as one declaration family and builds Lean libraries automatically through proving, generalization and harvesting, updating dependent declarations as interfaces change. A general library built from 4,191 independent programs raised average task success from 63.0% to 73.0% across three single-file benchmarks and three backend models, while cutting average completion time by 13.2%.

Proving software correct is often more expensive than writing it, and finished verification work rarely becomes a reusable theorem library. VeriBase treats code and its associated theorems as one declaration family and builds Lean libraries automatically through proving, generalization and harvesting, updating dependent declarations as interfaces change. A general library built from 4,191 independent programs raised average task success from 63.0% to 73.0% across three single-file benchmarks and three backend models, while cutting average completion time by 13.2%.