Kairos provides an end‑to‑end verification engine that formally proves or refutes hardware RTL optimizations and software claims. By integrating model‑assisted candidates with formal equivalence tools, each accepted optimization is accompanied by a machine‑checked proof, measured area reduction, and reproducible verification conditions. The platform also offers an open‑source Lean 4 tactic library, Pythia, enabling automated proof strategies and axiom auditing for broader theorem‑proving applications.
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Problem
Hardware and software development teams often rely on simulation or informal testing to validate RTL optimizations and code claims, which can miss subtle bugs or provide insufficient evidence for regulatory or safety audits. Without formal, machine‑checked proofs, organizations cannot guarantee that claimed area reductions or functional equivalence truly hold.
Solution
Kairos delivers an end‑to‑end verification engine that formally proves or refutes RTL optimizations and software assertions. Model‑assisted candidate transformations are submitted to formal equivalence tools, which generate machine‑checked proofs of functional equivalence or counterexamples. Each accepted optimization is accompanied by a certificate that records the proof, the measured area reduction, and reproducible verification conditions, enabling transparent auditing. For theorem‑proving tasks, Kairos provides the open‑source Lean 4 tactic library Pythia, which supplies automated proof strategies, axiom auditing, and proof‑obligation tracking. The platform distinguishes between verified results and inconclusive outcomes, ensuring that only formally proven claims are presented as such.
Target Audience
Primary customers are hardware design and verification teams, semiconductor companies, and safety‑critical software developers that require auditable proof of optimization claims and functional correctness.
Features
- Formal equivalence checking for both combinational and sequential RTL transformations with automated proof generation
- Certificates that include machine‑checked proofs, quantified area reduction, and reproducible verification conditions
- Independent sequential receipts for flop‑changing optimizations to ensure traceability
- Open‑source Lean 4 tactic library (Pythia) offering automated proof strategies, sorry‑closure, and axiom auditing
- Integration of proof‑obligation tracking and verification condition export for auditability
- Clear labeling of verification method and confidence level, with inconclusive results left unclaimed