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@runtimeverification

Runtime Verification Inc.

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Runtime Verification specializes in formal verification of software systems, providing the highest level of assurance for the correctness and security of smart contracts and other critical software. Our mission is to deliver open-source formal verification and developer tooling to reduce the costs of auditing and enable continuous formal verification and testing on each commit.

Schedule a call with us to discuss formal verification & security engagements, along with custom tooling development & integrations.

Since 2018, we have provided formal verification and security services to numerous blockchain foundations and dApps, such as EigenLayer, Optimism, Uniswap, Ethereum Foundation, Lido, Gnosis, Morpho, Polkadot and many others.

Here you can find a complete list of our previous engagements.

This GitHub Organization hosts all of Runtime Verification's open-source tools and projects, designed to improve the security and reliability of blockchain and software systems through formal verification.

We are currently building and maintaining the following projects:

  1. K Framework: A rewrite-based executable semantic framework that allows formal definition of programming languages and VMs.
  2. Kontrol: Combines KEVM and Foundry to enable developers to perform formal verification without learning new languages or tools.
  3. Simbolik: VSCode-compatible Solidity debugger with built-in symbolic execution engine designed to assist in debugging and verifying smart contracts.
  4. KEVM: An executable formal specification of the Ethereum Virtual Machine (EVM) in the K framework.
  5. KWasm: A formal semantics of WebAssembly in the K framework, allowing formal analysis and verification of WebAssembly programs.
  6. KMIR: A formal semantics of the Rust MIR (Mid-level Intermediate Representation) in the K framework.
  7. Kasmer: A formal verification tool for WebAssembly, based on KWasm.
  8. KaaS: CI Integrated Cloud-Based Symbolic Execution.

You can learn more about our tools from Runtime Verification docs.

We invite developers, researchers, and enthusiasts to explore and contribute to our projects, as we continue to push the boundaries of formal verification and secure software development.

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  1. k k Public

    K Framework Tools 7.0

    Python 554 161

  2. evm-semantics evm-semantics Public

    K Semantics of the Ethereum Virtual Machine (EVM)

    KCL 578 153

  3. kontrol-demo kontrol-demo Public

    Foundry blog posts' executable demos

    Solidity 14 4

  4. imp-semantics imp-semantics Public

    The K semantics of IMP and associated tools

    Python 7 1

  5. kontrol kontrol Public

    Python 109 13

  6. mir-semantics mir-semantics Public

    Python 38 4

Repositories

Showing 10 of 210 repositories
  • stable-mir-json Public

    KMIR Rust Library

    runtimeverification/stable-mir-json’s past year of commit activity
    Rust 9 BSD-3-Clause 4 28 (4 issues need help) 12 Updated Mar 10, 2026
  • solana-token Public Forked from solana-program/token

    The SPL Token program and its clients

    runtimeverification/solana-token’s past year of commit activity
    Rust 0 Apache-2.0 90 12 3 Updated Mar 10, 2026
  • haskell-backend Public

    The symbolic execution engine powering the K Framework

    runtimeverification/haskell-backend’s past year of commit activity
    Haskell 221 BSD-3-Clause 43 140 14 Updated Mar 10, 2026
  • mir-semantics Public
    runtimeverification/mir-semantics’s past year of commit activity
    Python 38 BSD-3-Clause 4 67 16 Updated Mar 10, 2026
  • kup Public

    K and Semantics Distribution Tool

    runtimeverification/kup’s past year of commit activity
    Python 9 BSD-3-Clause 1 17 5 Updated Mar 10, 2026
  • aeneas_fri_fold_arity_verification Public

    Proof-of-concept for verifying Plonky3 FRI cryptographic code using Aeneas (MIR-based, pure functional extraction) as an alternative to Hax (annotation-driven, monadic extraction).

    runtimeverification/aeneas_fri_fold_arity_verification’s past year of commit activity
    Lean 0 0 0 0 Updated Mar 10, 2026
  • skribe Public

    Property testing for Stylus smart contracts

    runtimeverification/skribe’s past year of commit activity
    Python 33 BSD-3-Clause 0 0 5 Updated Mar 9, 2026
  • kompass Public

    K semantics for Solana

    runtimeverification/kompass’s past year of commit activity
    Python 12 0 1 1 Updated Mar 7, 2026
  • skribe_9lives.so Public Forked from fluidity-money/9lives.so

    9lives is Arbitrum's most advanced prediction market. Powered by Stylus and AI agents.

    runtimeverification/skribe_9lives.so’s past year of commit activity
    TypeScript 0 MIT 7 0 7 Updated Mar 5, 2026
  • _audits_Ethereum-optimism_optimism_interopv2 Public Forked from ethereum-optimism/optimism

    Optimism is Ethereum, scaled.

    runtimeverification/_audits_Ethereum-optimism_optimism_interopv2’s past year of commit activity
    Go 0 MIT 4,443 9 3 Updated Mar 5, 2026

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