Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:52 2013 Optimize a model with 4800 rows, 7202 columns and 9600 nonzeros Model has 2400 quadratic constraints Presolve time: 0.01s Presolved: 4800 rows, 7202 columns, 9600 nonzeros Presolved model has 2400 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 7.200e+03 Factor NZ : 1.680e+04 (roughly 5 MBytes of memory) Factor Ops : 6.000e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.07762200e+06 0.00000000e+00 2.84e-14 4.83e-01 2.98e+02 0s 1 4.15733023e+05 8.28948689e+04 5.30e-08 4.99e-05 4.62e+01 0s 2 3.09592095e+05 2.43468123e+05 4.39e-08 6.51e-06 9.18e+00 0s 3 2.81889072e+05 2.72127693e+05 5.34e-09 1.50e-06 1.36e+00 0s 4 2.75866611e+05 2.74408071e+05 6.59e-11 5.04e-07 2.03e-01 0s 5 2.75694482e+05 2.75555278e+05 7.48e-10 3.19e-08 1.93e-02 0s 6 2.75645938e+05 2.75638817e+05 2.69e-11 1.60e-09 9.89e-04 0s 7 2.75644073e+05 2.75642747e+05 1.54e-10 3.81e-09 1.84e-04 0s 8 2.75643481e+05 2.75642885e+05 4.48e-11 2.67e-09 8.27e-05 0s 9 2.75643349e+05 2.75642992e+05 2.24e-11 1.80e-09 4.97e-05 0s 10 2.75643272e+05 2.75643175e+05 9.68e-12 2.84e-10 1.35e-05 0s Barrier solved model in 10 iterations and 0.10 seconds Optimal objective 2.75643272e+05