“…The constraint synthesis problem is related to our universality problem: given a parametric real-time system and formula, derive the most-general constraints over parameters that make the model-checking problem successful. This problem is studied in [4,9,10,14,15,18,21,29,30,32]. Although the constraint-synthesis problem for timed CTL with parameters appearing only in formulas is decidable, the same does not hold for timed automaton with parameters in general.…”