Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:43:58 2013 Optimize a model with 820 rows, 1232 columns and 1640 nonzeros Model has 410 quadratic constraints Presolve time: 0.00s Presolved: 820 rows, 1232 columns, 1640 nonzeros Presolved model has 410 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.230e+03 Factor NZ : 2.873e+03 Factor Ops : 1.026e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.31077354e+05 0.00000000e+00 2.84e-14 4.45e-01 2.79e+02 0s 1 6.99420452e+04 1.43718026e+04 6.65e-09 5.22e-05 4.52e+01 0s 2 5.14061358e+04 3.99992623e+04 5.80e-09 7.76e-06 9.27e+00 0s 3 4.62627349e+04 4.49815826e+04 8.85e-09 2.11e-06 1.04e+00 0s 4 4.56855933e+04 4.56054385e+04 5.00e-10 8.71e-08 6.52e-02 0s 5 4.56739423e+04 4.56579635e+04 6.43e-12 1.98e-08 1.30e-02 0s 6 4.56735638e+04 4.56718655e+04 3.17e-12 1.71e-09 1.38e-03 0s 7 4.56730597e+04 4.56720755e+04 1.71e-13 1.38e-09 8.00e-04 0s 8 4.56730237e+04 4.56722303e+04 4.26e-14 1.15e-09 6.45e-04 0s 9 4.56729894e+04 4.56724515e+04 1.33e-09 2.62e-09 4.37e-04 0s 10 4.56729806e+04 4.56726263e+04 1.17e-09 3.71e-09 2.88e-04 0s 11 4.56729700e+04 4.56727451e+04 8.90e-10 2.30e-09 1.83e-04 0s 12 4.56729626e+04 4.56727780e+04 4.41e-10 1.90e-09 1.50e-04 0s 13 4.56729575e+04 4.56728274e+04 3.61e-10 1.30e-09 1.06e-04 0s 14 4.56729465e+04 4.56728625e+04 2.35e-10 8.54e-10 6.83e-05 0s 15 4.56729450e+04 4.56728788e+04 2.20e-10 6.12e-10 5.38e-05 0s 16 4.56729487e+04 4.56728850e+04 2.03e-10 5.22e-10 5.17e-05 0s 17 4.56729418e+04 4.56728858e+04 1.45e-10 5.13e-10 4.55e-05 0s 18 4.56729388e+04 4.56728944e+04 1.28e-10 3.91e-10 3.61e-05 0s Barrier solved model in 18 iterations and 0.04 seconds Optimal objective 4.56729388e+04