TY - RPRT TI - Compositional Reasoning for Hierarchical State Machines AU - Sullivan, Zachary Joseph [Sandia National Laboratories (SNL-CA), Livermore, CA (United States)] AU - Rawlings, Blake Charles [Sandia National Laboratories (SNL-CA), Livermore, CA (United States)] (ORCID:0000000226683693) AU - Bender, John Matthew [Sandia National Laboratories (SNL-CA), Livermore, CA (United States)] (ORCID:0000000237546731) AU - Aytac, Jon M. [Sandia National Laboratories (SNL-CA), Livermore, CA (United States)] PY - 2026 DO - 10.2172/3362874 UR - https://www.osti.gov/biblio/3362874 ID - 3362874 ER -