Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:16 2013 Optimize a model with 1200 rows, 1802 columns and 2400 nonzeros Model has 600 quadratic constraints Presolve time: 0.00s Presolved: 1200 rows, 1802 columns, 2400 nonzeros Presolved model has 600 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.800e+03 Factor NZ : 4.203e+03 (roughly 1 MByte of memory) Factor Ops : 1.500e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.87317779e+05 0.00000000e+00 2.84e-14 4.54e-01 2.81e+02 0s 1 9.92416701e+04 2.14945518e+04 3.29e-09 4.90e-05 4.32e+01 0s 2 7.60135675e+04 6.10150914e+04 6.30e-09 6.40e-06 8.33e+00 0s 3 6.94239867e+04 6.76384995e+04 1.09e-09 1.40e-06 9.92e-01 0s 4 6.84335873e+04 6.82154498e+04 4.08e-11 3.33e-07 1.21e-01 0s 5 6.83915027e+04 6.83505065e+04 2.13e-13 7.57e-08 2.28e-02 0s 6 6.83901792e+04 6.83737702e+04 5.68e-14 3.05e-08 9.12e-03 0s 7 6.83893096e+04 6.83777486e+04 1.42e-14 2.27e-08 6.42e-03 0s 8 6.83890816e+04 6.83875218e+04 1.42e-14 2.71e-09 8.67e-04 0s 9 6.83889196e+04 6.83876392e+04 1.42e-14 2.45e-09 7.11e-04 0s 10 6.83886800e+04 6.83884539e+04 2.84e-14 4.89e-10 1.26e-04 0s 11 6.83886326e+04 6.83884690e+04 2.42e-13 4.39e-10 9.09e-05 0s 12 6.83886104e+04 6.83884891e+04 1.28e-13 3.65e-10 6.74e-05 0s 13 6.83886046e+04 6.83885353e+04 1.35e-13 1.91e-10 3.85e-05 0s 14 6.83885978e+04 6.83885546e+04 7.82e-14 1.17e-10 2.40e-05 0s Barrier solved model in 14 iterations and 0.04 seconds Optimal objective 6.83885978e+04