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Blog Posts by Yannick Moy

Yannick moy

Yannick Moy

Yannick Moy is Head of the Static Analysis Unit at AdaCore. Yannick contributes to the development of SPARK, a software source code analyzer aiming at verifying safety/security properties of programs. He frequently talks about SPARK in articles, conferences, classes and blogs (in particular blog.adacore.com). Yannick previously worked on source code analyzers for PolySpace (now The MathWorks) and at Université Paris-Sud.

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Oct 18, 2017

Yannick Moy

Prove in the Cloud

We have put together a byte (8 bits) of examples of SPARK code on a server in the cloud. The benefit with this webpage is that anyone can now…

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Sep 12, 2017

Yannick Moy

SPARK Tutorial at FDL Conference

Researcher Martin Becker is giving a SPARK tutorial next week at FDL conference. This post gives a link to his tutorial material (cookbook and…

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Aug 24, 2017

Yannick Moy

New SPARK Cheat Sheet

Our good friend Martin Becker has produced a new cheat sheet for SPARK, that you may find useful for a quick reminder on syntax that you have not…

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Jul 20, 2017

Yannick Moy

Proving Loops Without Loop Invariants

For all the power that comes with proof technology, one sometimes has to pay the price of writing a loop invariant. Along the years, we've strived to…

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Jul 18, 2017

Yannick Moy

Research Corner - Focused Certification of SPARK in Coq

The SPARK toolset aims at giving guarantees to its users about the properties of the software analyzed, be it absence of runtime errors or more…

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Jun 29, 2017

Yannick Moy

Applied Formal Logic: Searching in Strings

A friend pointed me to recent posts by Tommy M. McGuire, in which he describes how Frama-C can be used to functionally prove a brute force version of…

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Jun 11, 2017

Yannick Moy

Research Corner - FLOSS Glider Software in SPARK

Two years ago, we redeveloped the code of a small quadcopter called Crazyflie in SPARK, as a proof-of-concept to show it was possible to prove…

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Jun 08, 2017

Yannick Moy

Research Corner - Floating-Point Computations in SPARK

It is notoriously hard to prove properties of floating-point computations, including the simpler bounding properties that state safe bounds on the…

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Jun 02, 2017

Yannick Moy

Frama-C & SPARK Day Slides and Highlights

The Frama-C & SPARK Day this week was a very successful event gathering the people interested in formal program verification for C programs (with…

Implementation Guidance SPARK
May 27, 2017

Yannick Moy

New Guidance for Adoption of SPARK

While SPARK has been used for years in companies like Altran UK, companies without the same know-how may find it intimidating to get started on…

Nates Handfullof Ladybugs
May 05, 2017

Yannick Moy

(Many) More Low Hanging Bugs

We reported in a previous post our initial experiments to create lightweight checkers for Ada source code, based on the new Libadalang technology.…

Gps copy paste dark
May 02, 2017

Yannick Moy, Emmanuel Briot, Nicolas Roche

A Usable Copy-Paste Detector in A Few Lines of Python

After we created lightweight checkers based on the recent Libadalang technology developed at AdaCore, a colleague gave us the challenge of creating a…