Static analyzers like Astrée are incomplete, hence, may produce false alarms. We propose a framework for the investigation of the alarms produced by Astrée, so as to help classifying them as true errors or false alarms that are due to the approximation inherent in the static analysis. Our approach is based on the computation of an approximation of a set of traces specified by an initial and a (...

Astrée is a parametric Abstract Interpretation based static analyser that aims at proving the absence of RTE (Run-Time Errors) in control programs written in C. Such properties are clearly safety properties since the behaviour of a C program is undefined after a RTE. When it analyses a program of the class for which it is specialised, Astrée is far more precise than general purpose static analy...

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In this article, we introduce a simple formal semantics for floating-point numbers with errors which is expressive enough to be formally compared to the other methods. Next, we define formal semantics for interval, stochastic, automatic differentiation and error series methods. This enables us to formally compare the properties calculated in each semantics to our reference, simple semantics. Mo...

   In this paper we implement a simple DC model for CNTFETs already proposed by us in order to carry out static analysis of basic digital circuits. To verify the validity of the obtained results, they are compared with those of Wong model, resulting in good agreement, but obtaining a lighter ensuring compile and shorter execution time, which are the main character...

In the present paper, the focus is on the evaluation of steel dual-system frame buildings using four main types of structural analysis (Linear Static, Linear Dynamic, Nonlinear Static and Nonlinear Dynamic Analyses) with regard to "Seismic Rehabilitation Code for Existing Buildings in Iran" (based on FEMA 273 and 356) where the first two authors of the article tend to follow the previous work (...

Propagation analysis is a dynamic code analysis technique that can be used to quantitatively assess certain software properties that are oth erwise di cult to assess such as testability safety and security The currently accepted analysis technique relies heavily on repeated execution of the code being assessed and is therefore very expensive to apply We are currently developing static analysis ...

A static analysis of deformable object grasping based on bounded force closure is presented. There are many manipulative operations that deal with deformable objects in manufacturing processes. Manipulative operations for these objects are often performed by utilizing their deformation actively while the operations may result in failure because of unexpected deformation of the objects during th...