Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:54:12 2013 Optimize a model with 15800 rows, 23702 columns and 31600 nonzeros Model has 7900 quadratic constraints Presolve time: 0.02s Presolved: 15800 rows, 23702 columns, 31600 nonzeros Presolved model has 7900 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.370e+04 Factor NZ : 5.530e+04 (roughly 16 MBytes of memory) Factor Ops : 1.975e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.89545873e+06 0.00000000e+00 1.99e-13 5.04e-01 3.01e+02 0s 1 1.37729386e+06 2.75086088e+05 2.55e-08 4.90e-05 4.65e+01 0s 2 1.03062787e+06 8.14321004e+05 3.56e-08 3.45e-06 9.13e+00 0s 3 9.46092943e+05 9.04498293e+05 7.81e-09 4.20e-07 1.76e+00 0s 4 9.22409813e+05 9.16296417e+05 8.58e-10 7.43e-08 2.58e-01 0s 5 9.19146920e+05 9.18916687e+05 5.53e-11 2.34e-11 9.71e-03 0s 6 9.18941155e+05 9.18921546e+05 4.20e-12 8.50e-12 8.27e-04 0s 7 9.18927868e+05 9.18924588e+05 3.22e-10 2.16e-10 1.38e-04 0s 8 9.18925711e+05 9.18924858e+05 8.22e-11 9.37e-12 3.60e-05 0s Barrier solved model in 8 iterations and 0.30 seconds Optimal objective 9.18925711e+05