Efficient Solution of a Class of Quantified Constraints with Quantifier Prefix Exists-Forall

Milan Hladík, Stefan Ratschan

In various applications the search for certificates for certain properties (e.g., stability of dynamical systems, program termination) can be formulated as a quantified constraint solving problem with quantifier prefix exists-forall. In this paper, we present an algorithm for solving a certain class of such problems based on interval techniques in combination with conservative linear programming approximation. In comparison with previous work, the method is more general - allowing general Boolean structure in the input constraint, and more efficient - using splitting heuristics that learn from the success of previous linear programming approximations.

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