Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:24 2013 Optimize a model with 3000 rows, 4502 columns and 6000 nonzeros Model has 1500 quadratic constraints Presolve time: 0.00s Presolved: 3000 rows, 4502 columns, 6000 nonzeros Presolved model has 1500 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 4.500e+03 Factor NZ : 1.050e+04 (roughly 3 MBytes of memory) Factor Ops : 3.750e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.29288751e+06 0.00000000e+00 2.84e-14 4.99e-01 2.97e+02 0s 1 2.54009412e+05 5.47706974e+04 9.28e-09 4.79e-05 4.43e+01 0s 2 1.98413968e+05 1.61622057e+05 4.49e-08 7.54e-06 8.18e+00 0s 3 1.80838077e+05 1.76845826e+05 9.38e-09 1.70e-06 8.87e-01 0s 4 1.78998815e+05 1.78395211e+05 2.28e-09 5.10e-07 1.34e-01 0s 5 1.78974101e+05 1.78934717e+05 1.20e-09 1.47e-08 8.75e-03 0s 6 1.78938494e+05 1.78936228e+05 6.49e-11 1.04e-09 5.04e-04 0s 7 1.78936915e+05 1.78936445e+05 1.42e-09 6.31e-10 1.04e-04 0s 8 1.78936695e+05 1.78936466e+05 7.01e-10 1.44e-11 5.07e-05 0s 9 1.78936600e+05 1.78936471e+05 3.98e-10 6.48e-12 2.87e-05 0s Barrier solved model in 9 iterations and 0.06 seconds Optimal objective 1.78936600e+05