Team, Visitors, External Collaborators
Overall Objectives
Research Program
Highlights of the Year
New Software and Platforms
New Results
Bilateral Contracts and Grants with Industry
Partnerships and Cooperations
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Section: New Results

Static Analysis Of Binary Code With Memory Indirections Using Polyhedra

Participant : Laure Gonnord.

Together with Clement Ballabriga, Julien Forget, Giuseppe Lipari, and Jordy Ruiz (University of Lille), we proposed in 2018 a new abstract domain for static analysis of binary code. Our motivation stems from the need to improve the precision of the estimation of the Worst-Case Execution Time (WCET) of safety-critical real-time code. WCET estimation requires computing information such as upper bounds on the number of loop iterations, unfeasible execution paths, etc. These estimations are usually performed on binary code, mainly to avoid making assumptions on how the compiler works. Our abstract domain, based on polyhedra and on two mapping functions that associate polyhedra variables with registers and memory, targets the precise computation of such information. We prove the correctness of the method, and demonstrate its effectiveness on benchmarks and examples from typical embedded code.

The results have been presented to VMCAI'19 on Model Checking and Abstract Interpretation [5] and has received the best paper award of the conference.