Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:15 2013 Optimize a model with 2200 rows, 3302 columns and 4400 nonzeros Model has 1100 quadratic constraints Presolve time: 0.00s Presolved: 2200 rows, 3302 columns, 4400 nonzeros Presolved model has 1100 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 3.300e+03 Factor NZ : 7.703e+03 (roughly 2 MBytes of memory) Factor Ops : 2.750e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.43965647e+05 0.00000000e+00 2.84e-14 4.97e-01 2.96e+02 0s 1 1.90451654e+05 3.89865896e+04 5.81e-09 4.96e-05 4.59e+01 0s 2 1.43214218e+05 1.13365790e+05 3.06e-08 6.53e-06 9.04e+00 0s 3 1.30441152e+05 1.26439920e+05 5.35e-09 9.65e-07 1.21e+00 0s 4 1.27865017e+05 1.27772741e+05 1.17e-09 1.87e-08 2.80e-02 0s 5 1.27815386e+05 1.27812275e+05 1.81e-10 9.12e-09 9.43e-04 0s 6 1.27812727e+05 1.27812390e+05 4.76e-10 1.21e-09 1.02e-04 0s 7 1.27812595e+05 1.27812416e+05 2.70e-10 3.31e-13 5.43e-05 0s 8 1.27812480e+05 1.27812422e+05 8.55e-11 1.01e-12 1.75e-05 0s Barrier solved model in 8 iterations and 0.04 seconds Optimal objective 1.27812480e+05