|Título||Finding Hard Instances of Satisfiability in Lukasiewicz Logics|
|Publication Type||Conference Paper|
|Year of Publication||2015|
|Authors||Bofill M, Manyà F, Vidal A, Villaret M|
|Conference Name||2015 IEEE International Symposium on Multiple-Valued Logic, ISMVL 2015|
|Conference Location||Waterloo, Canada|
One aspect that has been poorly studied in multiple-valued logics, and in particular in Lukasiewicz logics, is the generation of instances of varying difficulty for evaluating, comparing and improving satisfiability solvers. In this paper we present a new class of clausal forms, called Lukasiewicz (L-)clausal forms, motivate their usefulness, study their complexity, and report on an empirical investigation that shows an easy-hard-easy pattern and a phase transition phenomenon when testing the satisfiability of L-clausal forms.
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