منابع مشابه
Non-prenex QBF Solving Using Abstraction
In a recent work, we introduced an abstraction based algorithm for solving quantified Boolean formulas (QBF) in prenex negation normal form (PNNF) where quantifiers are only allowed in the formula’s prefix and negation appears only in front of variables. In this paper, we present a modified algorithm that lifts the restriction on prenex quantifiers. Instead of a linear quantifier prefix, the al...
متن کاملSolving QBF by Clause Selection
Algorithms based on the enumeration of implicit hitting sets find a growing number of applications, which include maximum satisfiability and model based diagnosis, among others. This paper exploits enumeration of implicit hitting sets in the context of Quantified Boolean Formulas (QBF). The paper starts by developing a simple algorithm for QBF with two levels of quantification, which is shown t...
متن کاملIncremental QBF Solving by DepQBF
The logic of quantified Boolean formulae (QBF) extends propositional logic by explicit existential and universal quantification of the variables. We present the search-based QBF solver DepQBF which allows to solve a sequence of QBFs incrementally. The goal is to exploit information which was learned when solving previous formulae in the process of solving the next formula in a sequence. We illu...
متن کاملSolving QBF with SMV
The possibility of solving the Quantified Boolean Formulae (QBF) problems using the SMV system is a consequence of two wellknown theoretical results: the membership of QBF to PSPACE, and the PSPACE-hardness of LTL (and therefore, of SMV). Nevertheless, such results do not imply the existence of a reduction that is also of practical utility. In this paper, we show a reduction from QBF to SMV tha...
متن کاملIncremental QBF Solving
Propositional logic (SAT) has been widely applied to encode problems from model checking, formal verification, and synthesis, for example. In these applications, often a sequence of closely related formulae must be solved. Incremental solving aims at using information learned from one formula in the process of solving the next formulae. Motivated by the success of incremental SAT solving, we co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronic Proceedings in Theoretical Computer Science
سال: 2018
ISSN: 2075-2180
DOI: 10.4204/eptcs.277.7