VeriMon: A Formally Verified Monitoring Tool -- Generalized Test Tables: A Domain-specific Specification Language for Automated Production -- On Safety, Assurance and Reliability: A Software Engineering Perspective -- Reachability Games and Parity Games -- A PO Characterisation of Reconfiguration -- Structural Rules and Algebraic Properties of Intersection Types -- Florido Quantitative Weak Linearisation -- On the Formalization and Computational Complexity of Resilience Problems for Cyber-Physical Systems -- Spatial and Timing Properties in Highway Traffic -- Denotational and Algebraic Semantics for the CaIT calculus -- Reconciling communication delays and negation -- A Combinatorial Study of Async/Await Processes -- Unsatisfiability of Comparison-Based Non-Malleability for Commitments -- Alternating Automatic Register Machines -- Functional Choreographic Programming -- A Model Checking Based Approach to Detect Safety-Critical Adversarial Examples on Autonomous Driving Systems -- Ground Confluence andStrong Commutation modulo Alpha-Equivalence in Nominal Rewriting -- Local XOR Unification: Definitions, Algorithms and Application to Cryptography -- A Matching Logic Foundation for Alk -- A Type System with Subtyping for WebAssembly's Stack Polymorphism -- A Verified Implementation of B+-trees in Isabelle/HOL -- Toward a user interface description language based on bigraphs -- A Specification Logic for Programs in the Probabilistic Guarded Command Language.

This book constitutes the proceedings of the 19th International Colloquium on Theoretical Aspects of Computing, ICTAC 2022, which took place in Tbilisi, Georgia, in September 2022. The 23 papers presented in this volume together with 2 short papers were carefully reviewed and selected from 52 submissions. The book deals with challenges in both theoretical aspects of computing and the exploitation of theory through methods and tools for system development.