Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:36 2013 Optimize a model with 1520 rows, 2282 columns and 3040 nonzeros Model has 760 quadratic constraints Presolve time: 0.00s Presolved: 1520 rows, 2282 columns, 3040 nonzeros Presolved model has 760 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.280e+03 Factor NZ : 5.323e+03 (roughly 2 MBytes of memory) Factor Ops : 1.900e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.49122768e+05 0.00000000e+00 2.84e-14 4.95e-01 2.94e+02 0s 1 1.31024201e+05 2.73266639e+04 1.68e-08 5.05e-05 4.55e+01 0s 2 9.96463868e+04 7.91852918e+04 3.42e-08 6.69e-06 8.97e+00 0s 3 9.09452992e+04 8.75146861e+04 3.81e-09 1.19e-06 1.50e+00 0s 4 8.91300396e+04 8.84487218e+04 1.03e-11 4.69e-07 2.99e-01 0s 5 8.90987164e+04 8.89120277e+04 4.78e-10 1.78e-07 8.19e-02 0s 6 8.90891483e+04 8.90776953e+04 1.71e-10 2.79e-08 5.02e-03 0s 7 8.90880338e+04 8.90823586e+04 8.17e-13 1.50e-08 2.49e-03 0s 8 8.90879263e+04 8.90864941e+04 5.83e-13 3.30e-09 6.28e-04 0s 9 8.90877061e+04 8.90870416e+04 1.14e-13 1.68e-09 2.91e-04 0s 10 8.90876185e+04 8.90872345e+04 4.26e-14 1.07e-09 1.68e-04 0s 11 8.90876056e+04 8.90872626e+04 3.55e-14 9.80e-10 1.50e-04 0s 12 8.90875603e+04 8.90874194e+04 1.42e-14 4.40e-10 6.18e-05 0s 13 8.90875527e+04 8.90874724e+04 6.39e-14 2.16e-10 3.52e-05 0s Barrier solved model in 13 iterations and 0.05 seconds Optimal objective 8.90875527e+04