Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:38 2013 Optimize a model with 1540 rows, 2312 columns and 3080 nonzeros Model has 770 quadratic constraints Presolve time: 0.00s Presolved: 1540 rows, 2312 columns, 3080 nonzeros Presolved model has 770 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.310e+03 Factor NZ : 5.393e+03 (roughly 2 MBytes of memory) Factor Ops : 1.926e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.38164610e+05 0.00000000e+00 2.84e-14 4.84e-01 2.86e+02 0s 1 1.29685004e+05 2.78166823e+04 2.11e-08 4.95e-05 4.41e+01 0s 2 9.91899868e+04 7.93880433e+04 2.80e-08 6.41e-06 8.57e+00 0s 3 9.02095647e+04 8.80126028e+04 4.16e-09 1.43e-06 9.51e-01 0s 4 8.90895323e+04 8.88708688e+04 1.79e-10 2.31e-07 9.47e-02 0s 5 8.90323467e+04 8.89780669e+04 4.18e-12 7.51e-08 2.35e-02 0s 6 8.90310285e+04 8.90196562e+04 2.16e-12 1.45e-08 4.92e-03 0s 7 8.90295706e+04 8.90234220e+04 1.42e-13 8.88e-09 2.66e-03 0s 8 8.90294729e+04 8.90256193e+04 2.81e-10 5.32e-09 1.67e-03 0s 9 8.90293394e+04 8.90287131e+04 8.66e-10 4.85e-09 2.71e-04 0s 10 8.90292231e+04 8.90289080e+04 4.05e-11 3.00e-09 1.36e-04 0s 11 8.90292000e+04 8.90290406e+04 1.17e-11 1.58e-09 6.90e-05 0s 12 8.90291908e+04 8.90290843e+04 3.41e-12 1.11e-09 4.61e-05 0s 13 8.90291858e+04 8.90291469e+04 3.62e-13 4.19e-10 1.68e-05 0s Barrier solved model in 13 iterations and 0.05 seconds Optimal objective 8.90291858e+04