Security
Runs where your code lives
We work with teams that have strict security requirements. Aristotle runs on-prem or in your private cloud, so your code stays in your environment.
Talk to our teamCode, proven correct
Your agents write more code than your team can review. Aristotle finds what your code must get right and proves it on every commit.
Every proof is machine-checked
Inside Aristotle, AI writes the proofs and Lean checks every step of them, so a result never rests on the AI being right. Because a proof covers every input, results don’t need a confidence score.
- 01Your code is compiled into LeanThe compiler is deterministic and uses separation logic to reason about memory in C. It also compiles any assertions you’ve written into Lean theorems. If you describe a property in plain English instead, Aristotle writes the theorem for you.
01Into Lean
- heartbleed.c
CompilerFixed
Deterministic. Turns your code, and any assertions in it, into Lean.
“The response is never longer than the request.”
PropertyAI
Writes what you describe in plain English as a Lean theorem.
- 02Lean checks every stepAristotle searches for the proof one step at a time. Whenever Lean rejects a step because it doesn’t hold, Aristotle goes back and tries another approach.
02The proof
Proof searchAI
Proposes each step of the proof.
Lean kernelLean
Checks each step against your code in Lean.
- 03The result comes back to your codeEach property comes back proved, with the assumptions it rests on, or refuted, with a counterexample you can run on your code. Any property Aristotle couldn’t settle is marked unresolved, so you can see what wasn’t covered.
03Back to your code
Proved
Checked by Lean
Lists the assumptions it rests on.
Refuted
Replayed
Includes a counterexample you can run.
Unresolved
Left open
Shows what Aristotle couldn’t settle.
Compiler, no AIAI proposesLean’s kernel decides
01Into Lean
- heartbleed.c
CompilerFixed
Deterministic. Turns your code, and any assertions in it, into Lean.
“The response is never longer than the request.”
PropertyAI
Writes what you describe in plain English as a Lean theorem.
02The proof
Proof searchAI
Proposes each step of the proof.
Lean kernelLean
Checks each step against your code in Lean.
03Back to your code
Proved
Checked by Lean
Lists the assumptions it rests on.
Refuted
Replayed
Includes a counterexample you can run.
Unresolved
Left open
Shows what Aristotle couldn’t settle.
What teams say
“Formal verification has traditionally meant a steep learning curve and writing properties by hand. Aristotle got us over those hurdles: it’s easy to start, intuitive to understand, and nearly fire-and-forget. Our designers get instant feedback during early RTL creation, and our DV engineers can formally verify state spaces that would be unthinkable with traditional tools. It also audits our functional and microarchitecture specs against the RTL, flagging ambiguities so design intent stays clear.”
Jonathan Ko
ASIC Verification Engineer, Tensordyne
“Developing real-time control systems for fusion reactors requires balancing strict safety requirements with the need to rapidly advance new diagnostics, physics and control algorithms. Aristotle’s formal verification capabilities fundamentally change how we approach this challenge. Using just one research paper and a 254-word prompt, Aristotle reproduced an algorithm from our plasma control system in four hours, verified the safety of the C code, and generated logically equivalent Verilog code for hardware acceleration.”
Mitchell Clark
DIII-D National Fusion Facility
Today it’s Verilog and C
Two languages so far, with more on the way. Each one opens Aristotle to more teams.
- 01
Verilog
Prove your RTL correct in development and before tapeout, with safety, liveness, and functional properties in one tool.
- 02
C
Prove your firmware and systems code has no undefined behavior.
- 03
More languages
Pricing
Don’t let price be the blocker
Pay for what you use, with no seats or licenses. Start on one project yourself, or talk to our team about enterprise pricing.
Try Aristotle