Verification, Model Checking, and Abstract Interpretation: 22nd International Conference, VMCAI 2021

Invited Papers.- Model Checking Algorithms for Hyperproperties.-  Algebra-based Synthesis of Loops and their Invariants.- Generative Program Analysis and Beyond: The Power of Domain-Specific Languages.- Hyperproperties and Infinite-state Systems.- Compositional Model Checking for Multi-Properties.- Decomposing Data Structure Commutativity Proofs with mn-Differencing.- Proving the existence of fair paths in infinite-state systems.- A Self-Certifying Compilation Framework for WebAssembly.- Concurrent and Distributed Systems.- Concurrent Correctness in Vector Space.- Verification of Concurrent Programs Using Petri Net Unfoldings.- Eliminating Message Counters in Synchronous Threshold Automata.- A Reduction Theorem for Randomized Distributed Algorithms under Weak Adversaries.- Checking.- Runtime Abstract Interpretation for Numerical Accuracy and Robustness.- Twinning automata and regular expressions for string static analysis.- Unbounded Procedure Summaries from Bounded Environments.- Syntax-Guided Synthesis for Lemma Generation in Hardware Model Checking.- Synthesis and Repair.- Approximate Bit Dependency Analysis to Identify Program Synthesis Problems as Infeasible.- Automated Repair of Heap-Manipulating Programs using Deductive Synthesis.- GPURepair: Automated Repair of GPU Kernels.- Applications.- A Synchronous Effects Logic for Temporal Verification of Pure Esterel.- A Design of GPU-Based Quantitative Model Checking.- Formal Semantics and Verification of Network Based Biocomputation Circuits.- Netter: Probabilistic, Stateful Network Models,. Decision Procedures.- Deciding the Bernays-Schoenfinkel Fragment over Bounded Difference Constraints by Simple Clause Learning over Theories.- Incremental Search for Conflict and Unit Instances of Quantified Formulas with E-Matching.- On Preprocessing for Weighted MaxSAT.- Compositional Satisfiability Solving in Separation Logic.