Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:09:47 2013 Optimize a model with 54000 rows, 81002 columns and 108000 nonzeros Model has 27000 quadratic constraints Presolve time: 0.06s Presolved: 54000 rows, 81002 columns, 108000 nonzeros Presolved model has 27000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 8.100e+04 Factor NZ : 1.890e+05 (roughly 60 MBytes of memory) Factor Ops : 6.750e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.32712167e+07 0.00000000e+00 2.22e-12 4.98e-01 2.97e+02 0s 1 4.67099029e+06 9.35934638e+05 5.01e-07 4.80e-05 4.61e+01 0s 2 3.49328071e+06 2.76644558e+06 7.21e-08 2.95e-06 8.97e+00 0s 3 3.20812230e+06 3.06684328e+06 1.60e-08 3.60e-07 1.74e+00 1s 4 3.13810402e+06 3.10213094e+06 3.60e-09 9.42e-08 4.44e-01 1s 5 3.11747568e+06 3.11088221e+06 2.78e-10 3.11e-08 8.14e-02 1s 6 3.11628470e+06 3.11533773e+06 1.11e-10 8.97e-10 1.17e-02 1s 7 3.11558404e+06 3.11547638e+06 1.34e-11 1.85e-11 1.33e-03 1s 8 3.11549418e+06 3.11547981e+06 1.73e-12 2.37e-12 1.77e-04 1s 9 3.11548685e+06 3.11548046e+06 9.52e-13 8.81e-13 7.89e-05 1s 10 3.11548412e+06 3.11548051e+06 2.80e-12 9.36e-13 4.46e-05 1s 11 3.11548332e+06 3.11548053e+06 2.73e-12 1.43e-12 3.44e-05 1s Barrier solved model in 11 iterations and 1.42 seconds Optimal objective 3.11548332e+06