Easom: minimum -1 at (pi, pi), 30 seeds, 10000 evaluations at most per run
runs              at -1  elsewhere  evaluations: median  largest
CMA-ES               19         11                  642     3150
CMA-ES with IPOP     30          0                 1314     2292
evaluations: of the runs that reach the minimum, to within 1e-8
