Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:11 2013 Optimize a model with 1120 rows, 1682 columns and 2240 nonzeros Model has 560 quadratic constraints Presolve time: 0.00s Presolved: 1120 rows, 1682 columns, 2240 nonzeros Presolved model has 560 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.680e+03 Factor NZ : 3.923e+03 (roughly 1 MByte of memory) Factor Ops : 1.400e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.58799802e+05 0.00000000e+00 2.84e-14 4.70e-01 2.82e+02 0s 1 9.60660700e+04 1.97273426e+04 1.04e-08 5.16e-05 4.54e+01 0s 2 7.07812824e+04 5.52520838e+04 3.68e-09 7.46e-06 9.24e+00 0s 3 6.39633810e+04 6.21779768e+04 6.97e-09 1.83e-06 1.06e+00 0s 4 6.29831224e+04 6.28643801e+04 1.17e-10 2.43e-07 7.07e-02 0s 5 6.29625058e+04 6.29406607e+04 1.19e-12 5.23e-08 1.30e-02 0s 6 6.29616720e+04 6.29579813e+04 5.40e-13 7.89e-09 2.20e-03 0s 7 6.29608816e+04 6.29588874e+04 8.53e-14 5.30e-09 1.19e-03 0s 8 6.29608195e+04 6.29598083e+04 6.39e-14 2.50e-09 6.02e-04 0s 9 6.29608189e+04 6.29598965e+04 5.68e-14 2.22e-09 5.49e-04 0s 10 6.29607278e+04 6.29600602e+04 3.55e-14 1.68e-09 3.97e-04 0s 11 6.29606271e+04 6.29601807e+04 4.97e-14 1.29e-09 2.66e-04 0s 12 6.29605972e+04 6.29602343e+04 1.35e-13 1.10e-09 2.16e-04 0s 13 6.29605745e+04 6.29603655e+04 2.84e-14 6.27e-10 1.24e-04 0s 14 6.29605554e+04 6.29604557e+04 2.84e-14 2.92e-10 5.94e-05 0s 15 6.29605500e+04 6.29604606e+04 2.34e-13 2.73e-10 5.32e-05 0s 16 6.29605426e+04 6.29604785e+04 9.95e-14 2.02e-10 3.82e-05 0s 17 6.29605370e+04 6.29604986e+04 6.39e-14 1.19e-10 2.29e-05 0s Barrier solved model in 17 iterations and 0.05 seconds Optimal objective 6.29605370e+04