At one level, Bio Model Analyzer is a sketching tool that enables users to draw out a biological system of interest (e.g. a genetic regulatory network) by dragging and dropping cells, their contents (DNA, proteins, etc.), extracellular components and relationships onto a simple canvas. At another level, Bio Model Analyzer’s analysis proves stabilization of biological systems, based upon formal methods that were developed for the specification and verification of properties in concurrent software systems.
You can find the source code on GitHub.