Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:57:50 2013 Optimize a model with 18600 rows, 27902 columns and 37200 nonzeros Model has 9300 quadratic constraints Presolve time: 0.02s Presolved: 18600 rows, 27902 columns, 37200 nonzeros Presolved model has 9300 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.790e+04 Factor NZ : 6.510e+04 (roughly 20 MBytes of memory) Factor Ops : 2.325e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 8.13295047e+06 0.00000000e+00 1.28e-13 5.07e-01 3.01e+02 0s 1 1.62372886e+06 3.24758711e+05 6.24e-08 4.89e-05 4.66e+01 0s 2 1.21621312e+06 9.61854420e+05 5.15e-08 3.42e-06 9.12e+00 0s 3 1.11689938e+06 1.06794076e+06 1.14e-08 4.14e-07 1.75e+00 0s 4 1.08792626e+06 1.08142962e+06 8.72e-10 7.97e-08 2.33e-01 0s 5 1.08489032e+06 1.08478068e+06 2.51e-11 3.17e-10 3.93e-03 0s 6 1.08481363e+06 1.08479870e+06 3.89e-12 1.97e-12 5.35e-04 0s 7 1.08480175e+06 1.08479965e+06 3.81e-10 3.94e-10 7.54e-05 0s 8 1.08480017e+06 1.08479977e+06 7.19e-11 3.12e-12 1.41e-05 0s Barrier solved model in 8 iterations and 0.35 seconds Optimal objective 1.08480017e+06