Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:05:41 2013 Optimize a model with 44000 rows, 66002 columns and 88000 nonzeros Model has 22000 quadratic constraints Presolve time: 0.05s Presolved: 44000 rows, 66002 columns, 88000 nonzeros Presolved model has 22000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 6.600e+04 Factor NZ : 1.540e+05 (roughly 50 MBytes of memory) Factor Ops : 5.500e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.90743546e+07 0.00000000e+00 9.09e-13 5.03e-01 2.99e+02 0s 1 3.82704589e+06 7.74145935e+05 1.73e-07 4.81e-05 4.63e+01 0s 2 2.87399718e+06 2.27982745e+06 2.51e-08 2.99e-06 9.00e+00 0s 3 2.64105341e+06 2.52545026e+06 5.58e-09 3.69e-07 1.75e+00 0s 4 2.57447008e+06 2.55565981e+06 5.65e-10 8.59e-08 2.85e-01 1s 5 2.56627849e+06 2.56534597e+06 5.44e-11 7.78e-13 1.41e-02 1s 6 2.56545182e+06 2.56536991e+06 4.29e-12 1.39e-12 1.24e-03 1s 7 2.56540691e+06 2.56538297e+06 1.45e-12 6.08e-13 3.63e-04 1s 8 2.56539005e+06 2.56538378e+06 6.39e-13 1.00e-12 9.51e-05 1s 9 2.56538725e+06 2.56538418e+06 7.53e-13 8.02e-13 4.65e-05 1s 10 2.56538682e+06 2.56538418e+06 1.39e-12 1.39e-12 3.99e-05 1s 11 2.56538608e+06 2.56538446e+06 9.38e-13 1.34e-12 2.45e-05 1s Barrier solved model in 11 iterations and 1.14 seconds Optimal objective 2.56538608e+06