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The RISC Algorithm Language (RISCAL)

March 20, 2017: RISCAL 1.0.3 (minor bug fixes)

The RISC Algorithm Language (RISCAL) is a specification language and associated software system for describing mathematical algorithms, formally specifying their behavior based on mathematical theories, and validating the correctness of algorithms, specifications, and theories by execution/evaluation. The software has been implemented in Java; it is freely available under the terms of the GNU GPL.


Click to enlarge the screenshot.

Virtual Machine: You can download a pre-configured virtual Linux machine (for the free VirtualBox virtualization software) with RISCAL for execution under MS Windows, Mac OS, or Linux:
Virtual Machine with RISCAL
To start the software, login as user "guest" with password "guest", double-click the "Terminal" icon, then execute and "RISCAL &". The installation of the software with sample specifications is available in "/software/RISCAL".
RISC Users: RISCAL is installed in the RISC environment. To start the software (respectively the included new version of the RISC ProofNavigator), execute
module load RISCAL
RISCAL &
Download RISCAL
This includes all the files for running the software on GNU/Linux x86 computers (32-bit or 64-bit); for others, the appropriate version of the Standard Widget Toolkit (SWT) has to be downloaded and installed.
See the files README, CHANGES, and COPYING.
Tutorial and Manual [HTML | PDF]
This is the user documentation of the software.
Subversion Repository
This is a web interface to the Subversion repository that holds the source code of the program. The repository can be read anonymously by any Subversion client from the URL
svn://svn.risc.jku.at/schreine/RISCAL

Wolfgang Schreiner
Last modified: March 1, 2017