Gurobi 5.0.1 (linux64) logging started Tue Jan 22 21:29:20 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 6.07713528e+07 0.00000000e+00 1.29e-11 4.96e-01 2.91e+02 0s 1 1.23935209e+07 2.54511862e+06 3.44e-07 4.61e-05 4.56e+01 1s 2 9.30121919e+06 7.39487897e+06 5.00e-08 2.81e-06 8.83e+00 1s 3 8.56328629e+06 8.17998304e+06 1.09e-08 3.36e-07 1.77e+00 1s 4 8.35063115e+06 8.27723189e+06 1.89e-09 6.84e-08 3.40e-01 2s 5 8.30541531e+06 8.29343941e+06 1.20e-11 2.67e-08 5.54e-02 2s 6 8.30472901e+06 8.30445989e+06 2.93e-12 1.35e-10 1.25e-03 2s 7 8.30452874e+06 8.30450343e+06 3.41e-13 1.62e-11 1.17e-04 3s 8 8.30451449e+06 8.30451056e+06 1.49e-13 2.01e-12 1.82e-05 3s Barrier solved model in 8 iterations and 2.93 seconds Optimal objective 8.30451449e+06