To build Leon you will need JDK, scala, sbt, and some external solver binaries. On Linux, it should already work out of the box.
To get started, see the documentation chapters, such as
The Stainless/Inox Stack
Leon verification has recently been split off into
- Inox a backend solving layer, and
- Stainless a Scala frontend that supports contract-checking and termination proving.
Leon remains (for now) the main project for synthesis and repair as well as resource bounds inference. However, developpment of verification-related features will most likely be confined to the Stainless/Inox front.