Departmental Papers (CIS)

Date of this Version

December 2008

Document Type

Conference Paper


Eleventh International Symposium on Practical Aspects of Declarative Languages (PADL 09), Savannah, Georgia, USA, January 19-20, 2009.


In this paper, we present our initial design and implementation of a declarative network verifier (DNV). DNV utilizes theorem proving, a well established verification technique where logic-based axioms that automatically capture network semantics are generated, and a user-driven proof process is used to establish network correctness properties. DNV takes as input declarative networking specifications written in the Network Datalog (NDlog) query language, and maps that automatically into logical axioms that can be directly used in existing theorem provers to validate protocol correctness. DNV is a significant improvement compared to existing use case of theorem proving which typically require several man-months to construct the system specifications. Moreover, NDlog, a high-level specification, whose semantics are precisely compiled into DNV without loss, can be directly executed as implementations, hence bridging specifications, verification, and implementation. To validate the use of DNV, we present case studies using DNV in conjunction with the PVS theorem prover to verify routing protocols, including eventual properties of protocols in dynamic settings.

Subject Area

CPS Formal Methods

Publication Source

Lecture Notes in Computer Science: Practical Aspects of Declarative Languages



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Copyright/Permission Statement

The final publication is available at Springer via


declarative networking, network protocol verification, domain-specific languages, theorem proving



Date Posted: 16 January 2009

This document has been peer reviewed.