SPARK 2014

Expanding the boundaries of safe and secure programming.

Learn more about SPARK 2014

Research Corner - Auto-active Verification in SPARK

by Claire Dross in Formal Verification, Papers and Slides – March 9, 2017

GNATprove performs auto-active verification, that is, verification is done automatically, but usually requires annotations by the user to succeed. In SPARK, annotations are most often given in the form of contracts (pre and postconditions). But some language features, in particular ghost code, allow proof guidance to be much more involved. In a paper we are presenting at NASA Formal Methods symposium 2017, we describe how an imperative red black tree implementation in SPARK was verified using intensive auto-active verification.

Rod Chapman on Software Security

by Yannick Moy in Events, Videos – March 7, 2017

Rod Chapman gave an impactful presentation at Bristech conference last year. His subject: programming Satan's computer! His way of pointing out how difficult it is to produce secure software. Of course, it would not be Rod Chapman if he did not have also a few hints at how they have done it at Altran UK over the years. And SPARK is central to this solution, although it does not get mentioned explicitly in the talk! (although Rod lifts the cover in answering a question at the end)

Hash it and Cache it

by Johannes Kanig in Formal Verification – January 24, 2017

A new feature of SPARK2014 allows to use a memcached server to share proof results between runs of the SPARK tools and even between developers on different machines. Check out this post to see the details.

Webcast on SPARK Hosted by Electronic Design

by Yannick Moy in Events – December 6, 2016

Next Monday, Bill Wong from Electronic Design will host a free webcast on "Building High-Assurance Software without Breaking the Bank", with SPARK experts Rod Chapman and myself as presenters. You can already register for the event.