@MISC{Monniaux07optimalabstraction, author = {David Monniaux}, title = {Optimal abstraction on real-valued programs}, year = {2007} }
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Abstract
In this paper, we show that it is possible to abstract program fragments using real variables using formulas in the theory of real closed fields. This abstraction is compositional and modular. We first propose domain (in a wide class including intervals and octagons), we then show how to obtain an optimal abstraction of program fragments with respect to that domain. This abstraction allows computing optimal fixed points inside that abstract domain, without the need for a widening operator. 1