Invited Talks -- Algorithmic Game Semantics and Static Analysis -- From Typed Process Calculi to Source-Based Security -- Contributed Papers -- Widening Operators for Weakly-Relational Numeric Abstractions -- Generation of Basic Semi-algebraic Invariants Using Convex Polyhedra -- Inference of Well-Typings for Logic Programs with Application to Termination Analysis -- Memory Space Conscious Loop Iteration Duplication for Reliable Execution -- Memory Usage Verification for OO Programs -- Abstraction Refinement for Termination -- Data-Abstraction Refinement: A Game Semantic Approach -- Locality-Based Abstractions -- Type-Safe Optimisation of Plugin Architectures -- Using Dependent Types to Certify the Safety of Assembly Code -- The PER Model of Abstract Non-interference -- A Relational Abstraction for Functions -- Taming False Alarms from a Domain-Unaware C Analyzer by a Bayesian Statistical Post Analysis -- Banshee: A Scalable Constraint-Based Analysis Toolkit -- A Generic Framework for Interprocedural Analysis of Numerical Properties -- Finding Basic Block and Variable Correspondence -- Boolean Heaps -- Interprocedural Shape Analysis for Cutpoint-Free Programs -- Understanding the Origin of Alarms in Astrée -- Pair-Sharing Analysis of Object-Oriented Programs -- Exploiting Sparsity in Polyhedral Analysis -- Secure Information Flow as a Safety Problem.

This book constitutes the refereed proceedings of the 12th International Symposium on Static Analysis, SAS 2005, held in London, UK in August 2005, co-located with the International Symposium on Logic-based Program Synthesis and Transformation (LOPSTR 2005). The 22 revised full papers presented together with the abstracts of 2 invited talks were carefully reviewed and selected from 66 submissions. The papers address all aspects of static analysis including program and systems verification, shape analysis and logic, termination analysis, security and safety, abstract interpretation and algorithms, abstract domain and data structures, pointer analysis, shape analysis, and data flow analysis.