Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:47:45 2013 Optimize a model with 8800 rows, 13202 columns and 17600 nonzeros Model has 4400 quadratic constraints Presolve time: 0.01s Presolved: 8800 rows, 13202 columns, 17600 nonzeros Presolved model has 4400 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.320e+04 Factor NZ : 3.080e+04 (roughly 10 MBytes of memory) Factor Ops : 1.100e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.84380118e+06 0.00000000e+00 7.11e-14 5.10e-01 3.01e+02 0s 1 7.61856562e+05 1.52872701e+05 1.86e-08 4.90e-05 4.61e+01 0s 2 5.73221972e+05 4.53247226e+05 7.86e-08 3.91e-06 9.09e+00 0s 3 5.28967528e+05 5.02418179e+05 1.65e-08 5.09e-07 2.01e+00 0s 4 5.11440311e+05 5.10861773e+05 8.53e-14 2.98e-13 4.38e-02 0s 5 5.11019653e+05 5.10991021e+05 2.84e-14 7.17e-13 2.17e-03 0s 6 5.10997828e+05 5.10992345e+05 4.10e-10 7.37e-10 4.15e-04 0s 7 5.10993662e+05 5.10992578e+05 5.97e-10 1.29e-09 8.21e-05 0s 8 5.10992959e+05 5.10992669e+05 1.66e-10 4.58e-13 2.19e-05 0s Barrier solved model in 8 iterations and 0.16 seconds Optimal objective 5.10992959e+05