Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:48:18 2013 Optimize a model with 9600 rows, 14402 columns and 19200 nonzeros Model has 4800 quadratic constraints Presolve time: 0.01s Presolved: 9600 rows, 14402 columns, 19200 nonzeros Presolved model has 4800 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.440e+04 Factor NZ : 3.360e+04 (roughly 10 MBytes of memory) Factor Ops : 1.200e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.17657854e+06 0.00000000e+00 7.11e-14 5.05e-01 3.00e+02 0s 1 8.29323403e+05 1.66574444e+05 7.83e-08 4.87e-05 4.60e+01 0s 2 6.23079394e+05 4.93649725e+05 4.21e-08 6.11e-06 8.99e+00 0s 3 5.71729940e+05 5.47585381e+05 8.96e-09 8.59e-07 1.68e+00 0s 4 5.57508066e+05 5.53718071e+05 3.93e-10 2.36e-07 2.63e-01 0s 5 5.56260026e+05 5.56232735e+05 5.77e-12 1.98e-10 1.90e-03 0s 6 5.56244073e+05 5.56239373e+05 7.75e-11 1.48e-09 3.26e-04 0s 7 5.56240978e+05 5.56239899e+05 1.76e-11 1.70e-10 7.49e-05 0s 8 5.56240384e+05 5.56240036e+05 6.00e-12 7.48e-12 2.42e-05 0s Barrier solved model in 8 iterations and 0.18 seconds Optimal objective 5.56240384e+05