Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:54 2013 Optimize a model with 4800 rows, 7202 columns and 9600 nonzeros Model has 2400 quadratic constraints Presolve time: 0.01s Presolved: 4800 rows, 7202 columns, 9600 nonzeros Presolved model has 2400 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 7.200e+03 Factor NZ : 1.680e+04 (roughly 5 MBytes of memory) Factor Ops : 6.000e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.08715231e+06 0.00000000e+00 4.26e-14 4.91e-01 3.00e+02 0s 1 4.16464907e+05 8.29376584e+04 1.49e-08 4.97e-05 4.63e+01 0s 2 3.11137563e+05 2.44505399e+05 1.09e-07 6.68e-06 9.25e+00 0s 3 2.83861777e+05 2.73423742e+05 7.57e-09 1.15e-06 1.45e+00 0s 4 2.77098362e+05 2.76840191e+05 2.99e-09 3.13e-08 3.59e-02 0s 5 2.76984026e+05 2.76977520e+05 5.73e-10 2.47e-09 9.04e-04 0s 6 2.76978279e+05 2.76977747e+05 2.81e-10 5.84e-10 7.38e-05 0s 7 2.76977868e+05 2.76977769e+05 5.31e-11 2.93e-13 1.38e-05 0s Barrier solved model in 7 iterations and 0.08 seconds Optimal objective 2.76977868e+05