{'fraction_non_alphanumeric': 0.018300653594771243, 'fraction_numerical': 0.0, 'mean_word_length': 5.719298245614035, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Formal Verification of Distributed Preemptive Real-time Scheduling

The application of component middleware in missioncritical systems introduces new challenges for distributed real-time embedded (DRE) system developers such as the safe composition of components to ensure end-to-end predictability. Model-based analysis provides a way to evaluate design alternatives with respect to functional specifications and the target platform. This paper introduces a semantic domain which captures key time-based properties of a generic class of DRE systems. We utilize this semantic domain to verify the preemptive schedulability using existing model checking tools. The proposed verification method and framework is demonstrated on a mission-critical avionics DRE system.