Deciding Persistence or Recurrence Membership in Spot


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There is a hierarchy of temporal properties, defined by Manna and Pnueli (1990). This hierarchy contains, amongst others, the recurrence and persistence classes. Knowing that a formula of linear time temporal logic (LTL) is recurrent (respectively persistent) is interesting because it ensures that can be translated into a deterministic Büchi automaton (respectively into a co-Büchi automaton). Originally, Spot, a library for -automata manipulation, had a single way to decide if a linear temporal logic formula belongs to the recurrence or to the persistence class. Thanks to our previous work introduced in emphA co-Büching Toolbox