Invited Talks and Tutorials -- Keynote Address: Abstraction, Composition, Symmetry, and a Little Deduction: The Remedies to State Explosion -- Invited Address: Applying Formal Methods to Cryptographic Protocol Analysis -- Invited Tutorial: Boolean Satisfiability Algorithms and Applications in Electronic Design Automation -- Invited Tutorial: Verification of Infinite-state and Parameterized Systems -- Regular Papers -- An Abstraction Algorithm for the Verification of Generalized C-Slow Designs -- Achieving Scalability in Parallel Reachability Analysis of Very Large Circuits -- An Automata-Theoretic Approach to Reasoning about Infinite-State Systems -- Automatic Verification of Parameterized Cache Coherence Protocols -- Binary Reachability Analysis of Discrete Pushdown Timed Automata -- Boolean Satisfiability with Transitivity Constraints -- Bounded Model Construction for Monadic Second-Order Logics -- Building Circuits from Relations -- Combining Decision Diagrams and SAT Procedures for Efficient Symbolic Model Checking -- On the Completeness of Compositional Reasoning -- Counterexample-Guided Abstraction Refinement -- Decision Procedures for Inductive Boolean Functions Based on Alternating Automata -- Detecting Errors Before Reaching Them -- A Discrete Strategy Improvement Algorithm for Solving Parity Games -- Distributing Timed Model Checking — How the Search Order Matters -- Efficient Algorithms for Model Checking Pushdown Systems -- Efficient Büchi Automata from LTL Formulae -- Efficient Detection of Global Properties in Distributed Systems Using Partial-Order Methods -- Efficient Reachability Analysis of Hierarchical Reactive Machines -- Formal Verification of VLIW Microprocessors with Speculative Execution -- Induction in Compositional Model Checking -- Liveness and Acceleration in Parameterized Verification -- Mechanical Verification of an Ideal Incremental ABR Conformance Algorithm -- Model Checking Continuous-Time Markov Chains by Transient Analysis -- Model-Checking for Hybrid Systems by Quotienting and Constraints Solving -- Prioritized Traversal: Efficient Reachability Analysis for Verification and Falsification -- Regular Model Checking -- Symbolic Techniques for Parametric Reasoning about Counter and Clock Systems -- Syntactic Program Transformations for Automatic Abstraction -- Temporal-logic Queries -- Are Timed Automata Updatable? -- Tuning SAT Checkers for Bounded Model Checking -- Unfoldings of Unbounded Petri Nets -- Verification Diagrams Revisited: Disjunctive Invariants for Easy Verification -- Verifying Advanced Microarchitectures that Support Speculation and Exceptions -- Tool Papers -- FoCs – Automatic Generation of Simulation Checkers from Formal Specifications -- IF: A Validation Environment for Timed Asynchronous Systems -- Integrating WS1S with PVS -- PET: An Interactive Software Testing Tool -- A Proof-Carrying Code Architecture for Java -- The Statemate Verification Environment -- TAPS: A First-Order Verifier for Cryptographic Protocols -- VINAS-P: A Tool for Trace Theoretic Verification of Timed Asynchronous Circuits -- XMC: A Logic-Programming-Based Verification Toolset.

This volume contains the proceedings of the 12th International Conference on Computer Aided Veri?cation (CAV 2000) held in Chicago, Illinois, USA during 15-19 July 2000. The CAV conferences are devoted to the advancement of the theory and practice of formal methods for hardware and software veri?cation. The con- rence covers the spectrum from theoretical foundations to concrete applications, with an emphasis on veri?cation algorithms, methods, and tools together with techniques for their implementation. The conference has traditionally drawn contributions from both researchers and practitioners in academia and industry. This year 91 regular research papers were submitted out of which 35 were - cepted, while 14 brief tool papers were submitted, out of which 9 were accepted for presentation. CAV included two invited talks and a panel discussion. CAV also included a tutorial day with two invited tutorials. Many industrial companies have shown a serious interest in CAV, ranging from using the presented technologies in their business to developing and m- keting their own formal veri?cation tools. We are very proud of the support we receive from industry. CAV 2000 was sponsored by a number of generous andforward-lookingcompaniesandorganizationsincluding:CadenceDesign- stems, IBM Research, Intel, Lucent Technologies, Mentor Graphics, the Minerva Center for Veri?cation of Reactive Systems, Siemens, and Synopsys. TheCAVconferencewasfoundedbyitsSteeringCommittee:EdmundClarke (CMU), Bob Kurshan (Bell Labs), Amir Pnueli (Weizmann), and Joseph Sifakis (Verimag).