Invited Talks -- Obscuring Code: Unveiling and Veiling Information in Programs -- Synthesizing Functions from Relations in Leon -- Program Analysis and Transformation -- Analyzing array manipulating programs by program transformation -- Analysing and Compiling Coroutines with Abstract Conjunctive Partial Deduction -- Constraint Handling Rules -- Confluence Modulo Equivalence in Constraint Handling Rules -- Exhaustive Execution of CHR through Source-to-Source Transformation -- A Formal Semantics for the Cognitive Architecture ACT-R -- CHRAnimation: An Animation Tool for Constraint Handling Rules -- Termination Analysis -- Extending the 2D Dependency Pair Framework for Conditional Term Rewriting Systems -- Security.-Partial Evaluation for Java Malware Detection -- Access control and obligations in the category-based metamodel: a rewritebased Semantics -- Program Testing and Verification.-Concolic Execution and Test-Case Generation in Prolog -- Liveness properties in CafeOBJ-a case study for meta-level specifications -- Program Synthesis -- A Hybrid Method for the Verification and Synthesis of Parameterized Self-Stabilizing Protocols -- Drill & Join: A method for inductive program synthesis -- Program Derivation -- Functional Kleene Closures -- Semantic Issues in Logic Programming -- On completeness of logic programs -- Polynomial Approximation to Well-Founded Semantics for Logic Programs with Generalized Atoms: Case Studies -- Program Transformation and Optimization -- Declarative Compilation for Constraint Logic Programming -- Pre-indexed Terms for Prolog.