Determining convergence was achieved via counting the generations (i.e. number of produced candidates) which did not improve the minimal energy of the population and finishing after a certain number of unsuccessful generations had passed. Particles which were filtered out due to their similarity to already existing particles would not be counted as unsuccessful generations until this has happened a predefined number of times in a row. Exact parameters values for population size, non-improving generations before termination and maximum number of particles that can be rejected due to non uniqueness are shown for both the GA with and without local optimzation in table II: