Gurobi 5.0.1 (linux64) logging started Tue Jan 22 21:29:36 2013 Optimize a model with 144000 rows, 216002 columns and 288000 nonzeros Model has 72000 quadratic constraints Presolve time: 0.17s Presolved: 144000 rows, 216002 columns, 288000 nonzeros Presolved model has 72000 second-order cone constraints Ordering time: 0.02s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.160e+05 Factor NZ : 5.040e+05 (roughly 150 MBytes of memory) Factor Ops : 1.800e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.10428389e+07 0.00000000e+00 1.49e-11 5.03e-01 2.92e+02 0s 1 1.24363568e+07 2.56619402e+06 2.24e-06 4.58e-05 4.57e+01 1s 2 9.34778479e+06 7.45539531e+06 3.21e-07 2.72e-06 8.76e+00 1s 3 8.59807983e+06 8.23545229e+06 7.03e-08 3.30e-07 1.68e+00 1s 4 8.40503773e+06 8.32724234e+06 1.22e-08 8.20e-08 3.60e-01 2s 5 8.36235534e+06 8.35308008e+06 6.82e-10 1.51e-08 4.29e-02 2s 6 8.36063190e+06 8.35937830e+06 2.84e-10 3.31e-11 5.80e-03 2s 7 8.35984123e+06 8.35939322e+06 1.00e-10 9.39e-12 2.07e-03 3s 8 8.35945085e+06 8.35939765e+06 1.21e-11 5.52e-12 2.46e-04 3s 9 8.35941417e+06 8.35939843e+06 4.30e-12 1.55e-12 7.29e-05 3s 10 8.35940503e+06 8.35939896e+06 1.78e-12 9.93e-13 2.81e-05 4s Barrier solved model in 10 iterations and 3.56 seconds Optimal objective 8.35940503e+06