Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:04:01 2013 Optimize a model with 38000 rows, 57002 columns and 76000 nonzeros Model has 19000 quadratic constraints Presolve time: 0.04s Presolved: 38000 rows, 57002 columns, 76000 nonzeros Presolved model has 19000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 5.700e+04 Factor NZ : 1.330e+05 (roughly 40 MBytes of memory) Factor Ops : 4.750e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.63999367e+07 0.00000000e+00 9.09e-13 4.94e-01 2.97e+02 0s 1 3.28760940e+06 6.60838131e+05 4.54e-07 4.82e-05 4.61e+01 0s 2 2.46470031e+06 1.95386668e+06 8.17e-08 2.96e-06 8.96e+00 0s 3 2.27004198e+06 2.16390794e+06 1.86e-08 3.70e-07 1.86e+00 0s 4 2.21094797e+06 2.19625791e+06 2.81e-09 2.16e-08 2.58e-01 0s 5 2.19908771e+06 2.19828230e+06 5.04e-11 3.64e-09 1.41e-02 1s 6 2.19891233e+06 2.19878022e+06 2.08e-11 5.71e-11 2.32e-03 1s 7 2.19881182e+06 2.19878793e+06 3.60e-12 9.71e-12 4.19e-04 1s 8 2.19879545e+06 2.19878915e+06 9.45e-13 3.10e-12 1.11e-04 1s 9 2.19879115e+06 2.19878985e+06 2.49e-13 6.75e-13 2.28e-05 1s Barrier solved model in 9 iterations and 0.81 seconds Optimal objective 2.19879115e+06