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Title

Built-in support for Abstract Data Types in the Σ Decision Diagram framework

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Defense Maîtrise : Univ. Genève, 2010
Abstract Encoding and rewriting of large sets of terms is very useful in different do- mains such as model checking and theorem proving. Σ Decision Diagrams (ΣDD) have been developed to encode and rewrite large sets of terms in efficient manner, both in terms of space and memory. ΣDD encode terms in a symbolic and canonical way to ensure the sharing of redundant terms and subterms and also to be able to apply rewriting rules. In certain cases however the computer's built-in implementation might be faster than the symbolic approach. In this thesis we first extend the ΣDDs definition in or- der to support built-in types. Afterwards we extend the ΣDDs set operations to handle the extended ΣDD. Then, we modify the rewriting mechanism in order to perform built-in operations on the extended ΣDD by bypassing the normal mechanism and using the computer built-in mechanisms. Finally, we show that the new approach is much faster than the previous one in almost all different cases.
Keywords ∑DDDecision diagramTerm rewritingSymbolic techniquesSet of terms
Stable URL https://archive-ouverte.unige.ch/unige:15811
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Research group Software Modeling and Verification

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Deposited on : 2011-05-13

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