The data-based synthesis tool checks the specification for common issues, for early detection of problems that will lead to an empty supervisor. If such a problem is detected, a warning is printed to the console. Among others, checks are included for no initial states/variables, no marked states, and no states due to the state requirement invariants.
The tool also checks whether there are events that are never enabled in the input specification. If such a problem is detected, a warning is printed to the console. Among others, checks are included for events that are forbidden by automaton guards, event/state exclusion plant and requirement invariants, and state plant invariants.
Additionally, the tool warns about state/event exclusion invariants for events that are not in the alphabet of any automaton. Such invariants have no effect, as they try to (further) restrict events that are never enabled to begin with.
The tool furthermore checks for plant invariants or plant automata that reference requirement state. If such a problem is detected, a warning is printed to the console. Among others, references in guards, updates, invariant predicates, initialization predicates, marker predicates and initial values for discrete variables are detected.