SpecForge – A Platform for Authoring Formal Specifications
SpecForge is a platform that enables authoring and analysis of formal specifications using the Lilo language. It provides a VSCode extension and a Python SDK for tasks such as monitoring, generating example traces, falsifying specifications, and visualizing behavior. The tool supports temporal operators, custom types, and system organization to model hybrid systems like temperature control.
- ▪Lilo is an expression‑based temporal specification language featuring primitive types, arithmetic and logical operators, and rich temporal operators such as always, eventually, and historically.
- ▪SpecForge organizes specifications into systems that include signals, parameters, custom types, and reusable definitions, illustrated with a temperature sensor example.
- ▪The VSCode extension offers syntax highlighting, type‑checking, and analysis features like monitoring recorded traces, generating satisfying examples, searching for counterexamples, exporting formats, and animating specifications over time.
- ▪Analyses can be performed directly in VSCode or via a Jupyter notebook using the Python SDK, and results can be saved for later review.
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| Original publisher | Imiron |
| Canonical URL | https://docs.imiron.io/v/0.5.10/en/tour.html |
| Publication time | Wed, 29 Jul 2026 10:35:19 +0000 |
| Retrieval time | 2026-07-29T11:06:07.797Z |
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Opening excerpt (first ~120 words) tap to expand
A Whirlwind Tour This section is a quick introduction to SpecForge’s main capabilities through a hands-on example. We’ll explore how to write specifications in the Lilo language and analyze them using SpecForge’s VSCode extension. The Lilo Language: A Brief Introduction Lilo is an expression-based temporal specification language designed for hybrid systems. Here are the key concepts: Primitive Types: Bool, Int, Float, and String Operators: Standard arithmetic (+, -, *, /), comparisons (==, <, >, etc.), and logical operators (&&, ||, =>) Temporal Operators: Lilo’s distinguishing feature is its rich set of temporal logic operators: always φ: φ is true at all future times eventually φ: φ is true at some future time past φ: φ was true at some past time historically φ: φ was true at all past…
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