Gurobi 5.0.1 (linux64) logging started Tue Jan 22 21:05:18 2013 Optimize a model with 126000 rows, 189002 columns and 252000 nonzeros Model has 63000 quadratic constraints Presolve time: 0.14s Presolved: 126000 rows, 189002 columns, 252000 nonzeros Presolved model has 63000 second-order cone constraints Ordering time: 0.02s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.890e+05 Factor NZ : 4.410e+05 (roughly 130 MBytes of memory) Factor Ops : 1.575e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.35201070e+07 0.00000000e+00 9.19e-12 5.00e-01 2.93e+02 0s 1 1.08793133e+07 2.23690700e+06 1.35e-06 4.62e-05 4.57e+01 1s 2 8.18050806e+06 6.51587395e+06 1.94e-07 2.77e-06 8.81e+00 1s 3 7.51982278e+06 7.20152371e+06 4.23e-08 3.35e-07 1.68e+00 1s 4 7.34950857e+06 7.28189946e+06 7.07e-09 8.40e-08 3.58e-01 2s 5 7.31362830e+06 7.30591921e+06 5.08e-10 1.25e-08 4.08e-02 2s 6 7.31176655e+06 7.31048709e+06 2.05e-10 1.78e-11 6.77e-03 2s 7 7.31059338e+06 7.31049711e+06 1.42e-11 1.67e-12 5.09e-04 2s 8 7.31055926e+06 7.31049750e+06 9.02e-12 2.60e-12 3.27e-04 3s 9 7.31052219e+06 7.31049989e+06 3.28e-12 1.39e-12 1.18e-04 3s 10 7.31051796e+06 7.31050041e+06 3.40e-12 5.88e-12 9.29e-05 3s 11 7.31051358e+06 7.31050049e+06 7.28e-12 2.22e-12 6.93e-05 3s 12 7.31051047e+06 7.31050065e+06 5.63e-12 3.14e-12 5.20e-05 4s 13 7.31050864e+06 7.31050066e+06 4.63e-12 2.94e-12 4.22e-05 4s 14 7.31050621e+06 7.31050086e+06 3.23e-12 1.36e-12 2.83e-05 4s Barrier solved model in 14 iterations and 4.16 seconds Optimal objective 7.31050621e+06