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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 541 160

  2. evm-semantics evm-semantics Public

    K Semantics of the Ethereum Virtual Machine (EVM)

    Python 549 152

  3. kontrol-demo kontrol-demo Public

    Foundry blog posts' executable demos

    Solidity 13 4

  4. imp-semantics imp-semantics Public

    The K semantics of IMP and associated tools

    Python 7 1

  5. kontrol kontrol Public

    Python 85 13

  6. mir-semantics mir-semantics Public

    Python 32 4

Repositories

Showing 10 of 199 repositories
  • haskell-backend Public

    The symbolic execution engine powering the K Framework

    runtimeverification/haskell-backend’s past year of commit activity
    Haskell 223 BSD-3-Clause 42 139 14 Updated Dec 18, 2025
  • nixpkgs Public Forked from NixOS/nixpkgs

    Nix Packages collection & NixOS

    runtimeverification/nixpkgs’s past year of commit activity
    Nix 0 MIT 17,681 0 14 Updated Dec 18, 2025
  • kontrol Public
    runtimeverification/kontrol’s past year of commit activity
    Python 85 BSD-3-Clause 13 168 (1 issue needs help) 22 Updated Dec 18, 2025
  • mir-semantics Public
    runtimeverification/mir-semantics’s past year of commit activity
    Python 32 BSD-3-Clause 4 64 10 Updated Dec 18, 2025
  • evm-semantics Public

    K Semantics of the Ethereum Virtual Machine (EVM)

    runtimeverification/evm-semantics’s past year of commit activity
    Python 549 BSD-3-Clause 152 75 8 Updated Dec 18, 2025
  • 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 72 13 1 Updated Dec 17, 2025
  • runtimeverification/gitbook-skribe’s past year of commit activity
    0 0 0 0 Updated Dec 17, 2025
  • skribe Public

    Property testing for Stylus smart contracts

    runtimeverification/skribe’s past year of commit activity
    Python 0 BSD-3-Clause 0 0 4 Updated Dec 17, 2025
  • simbolik-vscode Public

    VSCode extension for debugging Solidity using Simbolik API server

    runtimeverification/simbolik-vscode’s past year of commit activity
    TypeScript 47 BSD-3-Clause 3 16 10 Updated Dec 17, 2025
  • komet Public
    runtimeverification/komet’s past year of commit activity
    WebAssembly 0 BSD-3-Clause 2 6 7 Updated Dec 16, 2025

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