LAUSR

Abstract New results on the model repair for timed discrete systems, modeled as Time Petri net systems, are presented in this paper. Unexpected and missed behavior in the nominal model, leading to observed but unexpected events and missed event observations, are formulated as logical conditions that can be directly transformed into linear mixed-integer inequalities. The repair model algorithm is incremental, also when multiple deviations from the nominal behavior are observed at a time. A set of logical conditions is preliminarily built from the observed behavior, then a mixed-integer linear programming problem is solved to repair the model.