Extracting formal specifications from Apache ZooKeeper with AI tools and Apalache

Author: Igor Konnov Date: May 26, 2026 This text is artisanally typed using a keyboard, with occasional suggestions by Copilot. The figures are generated with ChatGPT 5.5. The plots are produced by AI-generated scripts from the experimental data. By AI tools, I refer to Codex GPT 5.4/5.5 and Claude Code Sonnet/Opus 4.6/4.7. Recently, I gave a talk on " Interactive symbolic testing with TLA + ,…