This book constitutes the refereed proceedings of the 26th International Symposium on Model Checking Software, SPIN 2019, held in Beijing, China, in July 2019.The 11 full papers presented and 2 demo-tool papers, were carefully reviewed and selected from 29 submissions. formal analysis for modeling languages, such as UML/state charts;

Model Verification Through Dependency Graphs.- Model Checking Branching Time Properties for Incomplete Markov Chains.- A Novel Decentralized LTL Monitoring Framework Using Formula Progression Table.- From Dynamic State Machines to Promela.- String abstraction for model checking of C programs.- Swarm Model Checking on the GPU.- Statistical Model Checking of Complex Robotic Systems.- STAD: Stack Trace Based Automatic Software Misconfiguration Diagnosis via Value Dependency Graph.- Extracting Safe Thread Schedules from Incomplete Model Checking Results.- Learning Guided Enumerative Synthesis for Superoptimization.- Applying Model Checking Approach with Floating Point Arithmetic.- Conformance Testing of Schedulers for DSL-based Model Checking.- A Study of Learning Data Structure Invariants Using Off-the-shelf Tools.- VeriVANca: An Actor-Based Framework for Formal Verification of Warning Message Dissemination Schemes in VANETs.