Gurobi 5.0.1 (linux64) logging started Tue Jan 22 21:30:26 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 6.09393713e+07 0.00000000e+00 1.44e-11 5.00e-01 2.92e+02 0s 1 1.24093642e+07 2.56275791e+06 7.46e-07 4.58e-05 4.56e+01 1s 2 9.33734320e+06 7.45084247e+06 1.07e-07 2.71e-06 8.73e+00 1s 3 8.58768830e+06 8.22400779e+06 2.35e-08 3.30e-07 1.68e+00 1s 4 8.37823356e+06 8.31584345e+06 2.51e-09 8.22e-08 2.89e-01 2s 5 8.35100458e+06 8.34770746e+06 2.28e-10 7.97e-10 1.53e-02 2s 6 8.34829287e+06 8.34815750e+06 1.01e-11 1.73e-11 6.27e-04 2s 7 8.34820374e+06 8.34817017e+06 2.76e-12 2.08e-12 1.55e-04 3s 8 8.34818002e+06 8.34817105e+06 1.34e-12 7.76e-12 4.15e-05 3s 9 8.34817509e+06 8.34817155e+06 1.09e-12 4.93e-12 1.64e-05 3s Barrier solved model in 9 iterations and 3.27 seconds Optimal objective 8.34817509e+06