Title
Deciding Kat And Hoare Logic With Derivatives
Abstract
Kleene algebra with tests (KAT) is an equational system for program verification, which is the combination of Boolean algebra (BA) and Kleene algebra (KA), the algebra of regular expressions. In particular, KAT subsumes the propositional fragment of Hoare logic (PHL) which is a formal system for the specification and verification of programs, and that is currently the base of most tools for checking program correctness. Both the equational theory of KAT and the encoding of PHL in KAT are known to be decidable. In this paper we present a new decision procedure for the equivalence of two KAT expressions based on the notion of partial derivatives. We also introduce the notion of derivative modulo particular sets of equations. With this we extend the previous procedure for deciding PHL. Some experimental results are also presented.
Year
DOI
Venue
2012
10.4204/EPTCS.96.10
ELECTRONIC PROCEEDINGS IN THEORETICAL COMPUTER SCIENCE
Field
DocType
Issue
Kleene algebra,Discrete mathematics,Regular expression,Expression (mathematics),Correctness,Hoare logic,Decidability,Equivalence (measure theory),Boolean algebra,Mathematics
Journal
96
ISSN
Citations 
PageRank 
2075-2180
4
0.42
References 
Authors
9
3
Name
Order
Citations
PageRank
Ricardo Almeida113524.67
Sabine Broda26413.83
Nelma Moreira318033.98