A Linear Programming Relaxation Based Approach for Generating Barrier Certificates of Hybrid Systems

This paper presents a linear programming (LP) relaxation based approach for generating polynomial barrier certificates for safety verification of semi-algebraic hybrid systems. The key idea is to introduce an LP relaxation to encode the set of nonnegativity constraints derived from the conditions of the associated barrier certificates and then resort to LP solvers to find the solutions. The most important benefit of the LP relaxation based approach is that it possesses a much lower computational complexity and hence can be solved very efficiently, which is demonstrated by the theoretical analysis on complexity as well as the experiment on a set of examples gathered from the literature. As far as we know, it is the first method that enables LP relaxation based polynomial barrier certificate generation.