Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:50:15 2013 Optimize a model with 12000 rows, 18002 columns and 24000 nonzeros Model has 6000 quadratic constraints Presolve time: 0.01s Presolved: 12000 rows, 18002 columns, 24000 nonzeros Presolved model has 6000 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.800e+04 Factor NZ : 4.200e+04 (roughly 12 MBytes of memory) Factor Ops : 1.500e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.25388736e+06 0.00000000e+00 1.14e-13 5.06e-01 3.02e+02 0s 1 1.04768110e+06 2.07927442e+05 4.15e-08 4.89e-05 4.67e+01 0s 2 7.81518958e+05 6.16526982e+05 5.09e-08 3.88e-06 9.17e+00 0s 3 7.17691238e+05 6.85814394e+05 1.15e-08 5.67e-07 1.77e+00 0s 4 6.97425741e+05 6.93754263e+05 4.97e-14 1.43e-07 2.04e-01 0s 5 6.96688850e+05 6.96625351e+05 2.84e-14 2.23e-09 3.53e-03 0s 6 6.96677429e+05 6.96667060e+05 2.84e-14 2.15e-10 5.76e-04 0s 7 6.96672113e+05 6.96670819e+05 2.84e-14 3.18e-11 7.19e-05 0s 8 6.96671562e+05 6.96671328e+05 5.68e-14 9.35e-12 1.30e-05 0s Barrier solved model in 8 iterations and 0.22 seconds Optimal objective 6.96671562e+05