Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:25 2013 Optimize a model with 3200 rows, 4802 columns and 6400 nonzeros Model has 1600 quadratic constraints Presolve time: 0.00s Presolved: 3200 rows, 4802 columns, 6400 nonzeros Presolved model has 1600 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 4.800e+03 Factor NZ : 1.120e+04 (roughly 3 MBytes of memory) Factor Ops : 4.000e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.37069867e+06 0.00000000e+00 2.84e-14 4.87e-01 2.95e+02 0s 1 2.73134295e+05 5.42134924e+04 8.03e-09 4.97e-05 4.56e+01 0s 2 2.04037886e+05 1.60199573e+05 6.61e-08 6.53e-06 9.13e+00 0s 3 1.85881666e+05 1.77980381e+05 2.25e-08 9.81e-07 1.65e+00 0s 4 1.81543522e+05 1.80540370e+05 5.68e-14 2.40e-07 2.09e-01 0s 5 1.81422710e+05 1.81400602e+05 9.03e-11 7.22e-09 4.61e-03 0s 6 1.81414038e+05 1.81411587e+05 1.09e-11 7.22e-10 5.11e-04 0s 7 1.81413035e+05 1.81412670e+05 3.01e-09 6.83e-10 7.60e-05 0s 8 1.81412840e+05 1.81412782e+05 6.25e-10 1.63e-11 1.20e-05 0s Barrier solved model in 8 iterations and 0.06 seconds Optimal objective 1.81412840e+05