Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:51 2013 Optimize a model with 4600 rows, 6902 columns and 9200 nonzeros Model has 2300 quadratic constraints Presolve time: 0.01s Presolved: 4600 rows, 6902 columns, 9200 nonzeros Presolved model has 2300 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 6.900e+03 Factor NZ : 1.610e+04 (roughly 5 MBytes of memory) Factor Ops : 5.750e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.98499621e+06 0.00000000e+00 2.84e-14 5.01e-01 2.97e+02 0s 1 3.92138988e+05 8.30668954e+04 5.81e-08 4.85e-05 4.48e+01 0s 2 3.17728876e+05 2.45350327e+05 2.94e-08 7.67e-06 1.05e+01 0s 3 2.80106191e+05 2.71657855e+05 1.41e-08 6.96e-07 1.22e+00 0s 4 2.73468084e+05 2.72761258e+05 8.56e-10 3.40e-08 1.02e-01 0s 5 2.72821747e+05 2.72784410e+05 4.51e-11 7.48e-14 5.41e-03 0s 6 2.72794178e+05 2.72785687e+05 1.24e-10 6.49e-10 1.23e-03 0s 7 2.72788755e+05 2.72786175e+05 1.07e-09 1.24e-09 3.74e-04 0s 8 2.72787883e+05 2.72786545e+05 6.10e-10 2.89e-10 1.94e-04 0s 9 2.72787376e+05 2.72786592e+05 3.27e-10 2.19e-10 1.14e-04 0s 10 2.72787112e+05 2.72786739e+05 1.82e-10 2.67e-11 5.41e-05 0s 11 2.72787007e+05 2.72786782e+05 1.21e-10 1.49e-12 3.26e-05 0s Barrier solved model in 11 iterations and 0.11 seconds Optimal objective 2.72787007e+05