Twelve years have elapsed since the first QBF evaluation was held as an event linked to SAT conferences. During this period, researchers have strived to propose new algorithms and tools to solve challenging problems, with evaluations periodically trying to assess the current state of the art. In this paper, we present an experimental account of solvers and benchmarks with the aim to understand the progress, if any, in the QBF arena. Unlike typical evaluations, the analysis is not confined to the snapshot of submitted solvers and problems, but rather we consider several tools that were proposed over the last decade, and we run them on different problem sets. The main contribution of our analysis, which is also the message we would like to pass along to the research community is that some faded-to-oblivion techniques turn out to be still quite effective.
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|Titolo:||An empirical perspective on ten years of QBF solving|
|Data di pubblicazione:||2015|
|Appare nelle tipologie:||04.01 - Contributo in atti di convegno|