Frama-C In the previous post we’ve seen how to run Eva, but at the end we had a NON TERMINATING FUNCTION for a function that is supposed to always terminate, a likely indication that a definitive undefined behavior has been found in the analysis. In this post, we will see how...
Read MoreIn the previous post we’ve seen some recommendations about using Frama-C/Eva, and some tips about parsing. In this post, we will see how to run Eva, and how to quickly setup it for a more precise result. We will reuse the save file produced at the end of the parsing,...
Read More(with the collaboration of T. Antignac, Q. Bouillaguet, F. Kirchner and B. Yakobowski) This is the first of a series of posts on a new Eva tutorial primarily aimed at beginners (some of the later posts contain more advanced content). Reminder: Eva is the new name of the Value analysis...
Read MoreTo conclude our 3-part series on ACSL specifications for Value, we present a feature introduced in Frama-C Aluminium that allows more precise specifications: the indirect label in ACSL assigns clauses. The expressivity gains when writing \froms are especially useful for plugins such as Value. Indirect assigns Starting in Frama-C Aluminium...
Read MoreIn our previous post, we left you in a cliffhanger: which \from is missing from our ACSL specification for safe_get_random_char? In this post, we explain the functional dependencies in our specification, how to test them, and then present the missing dependency. Where do the \from come from? Our complete specification...
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