Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:40 2013 Optimize a model with 4000 rows, 6002 columns and 8000 nonzeros Model has 2000 quadratic constraints Presolve time: 0.00s Presolved: 4000 rows, 6002 columns, 8000 nonzeros Presolved model has 2000 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 6.000e+03 Factor NZ : 1.400e+04 (roughly 4 MBytes of memory) Factor Ops : 5.000e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.74647302e+06 0.00000000e+00 2.84e-14 4.93e-01 3.01e+02 0s 1 3.44367680e+05 6.96209941e+04 2.90e-08 4.96e-05 4.58e+01 0s 2 2.73430207e+05 2.07820183e+05 1.71e-08 6.10e-06 1.09e+01 0s 3 2.42109028e+05 2.31998301e+05 3.73e-09 8.62e-07 1.69e+00 0s 4 2.33620997e+05 2.33298207e+05 3.54e-11 1.09e-07 5.38e-02 0s 5 2.33572023e+05 2.33506473e+05 1.21e-10 3.92e-09 1.09e-02 0s 6 2.33511324e+05 2.33507220e+05 7.70e-12 1.04e-13 6.84e-04 0s 7 2.33508164e+05 2.33507264e+05 2.51e-09 1.09e-09 1.50e-04 0s 8 2.33507643e+05 2.33507280e+05 9.81e-10 3.17e-10 6.05e-05 0s 9 2.33507513e+05 2.33507286e+05 6.08e-10 2.10e-10 3.79e-05 0s Barrier solved model in 9 iterations and 0.08 seconds Optimal objective 2.33507513e+05