Gurobi 5.0.1 (linux64) logging started Tue Jan 22 21:43:26 2013 Optimize a model with 154000 rows, 231002 columns and 308000 nonzeros Model has 77000 quadratic constraints Presolve time: 0.18s Presolved: 154000 rows, 231002 columns, 308000 nonzeros Presolved model has 77000 second-order cone constraints Ordering time: 0.02s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.310e+05 Factor NZ : 5.390e+05 (roughly 160 MBytes of memory) Factor Ops : 1.925e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.51600306e+07 0.00000000e+00 1.64e-11 5.03e-01 2.91e+02 0s 1 1.32776310e+07 2.73625734e+06 3.90e-07 4.57e-05 4.56e+01 1s 2 9.97485058e+06 7.95192849e+06 5.60e-08 2.71e-06 8.76e+00 1s 3 9.17457432e+06 8.78659399e+06 1.23e-08 3.26e-07 1.68e+00 2s 4 8.97824692e+06 8.88468106e+06 2.68e-09 7.89e-08 4.05e-01 2s 5 8.92299174e+06 8.90933474e+06 1.93e-10 1.93e-08 5.91e-02 2s 6 8.91998403e+06 8.91800123e+06 7.53e-11 7.93e-11 8.58e-03 3s 7 8.91811667e+06 8.91803776e+06 1.84e-12 5.25e-12 3.42e-04 3s 8 8.91807277e+06 8.91804986e+06 5.83e-13 8.28e-12 9.92e-05 3s 9 8.91806275e+06 8.91805314e+06 2.98e-13 3.72e-12 4.16e-05 4s 10 8.91805587e+06 8.91805321e+06 3.13e-13 1.20e-11 1.15e-05 4s Barrier solved model in 10 iterations and 3.81 seconds Optimal objective 8.91805587e+06