Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:36 2013 Optimize a model with 1520 rows, 2282 columns and 3040 nonzeros Model has 760 quadratic constraints Presolve time: 0.00s Presolved: 1520 rows, 2282 columns, 3040 nonzeros Presolved model has 760 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.280e+03 Factor NZ : 5.323e+03 (roughly 2 MBytes of memory) Factor Ops : 1.900e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.30688220e+05 0.00000000e+00 2.84e-14 4.86e-01 2.86e+02 0s 1 1.28035517e+05 2.75065501e+04 3.63e-09 4.93e-05 4.41e+01 0s 2 9.79636959e+04 7.85103071e+04 8.46e-09 6.37e-06 8.53e+00 0s 3 8.91463250e+04 8.69857295e+04 6.42e-09 1.43e-06 9.48e-01 0s 4 8.80420384e+04 8.78868670e+04 2.61e-10 1.54e-07 6.81e-02 0s 5 8.79938612e+04 8.79505884e+04 7.92e-12 6.00e-08 1.90e-02 0s 6 8.79922143e+04 8.79784937e+04 3.40e-12 1.85e-08 6.02e-03 0s 7 8.79909157e+04 8.79872567e+04 1.56e-13 5.31e-09 1.60e-03 0s 8 8.79906722e+04 8.79884175e+04 1.34e-09 3.27e-09 9.89e-04 0s 9 8.79905989e+04 8.79902617e+04 1.71e-09 3.29e-09 1.48e-04 0s 10 8.79905806e+04 8.79903024e+04 1.18e-09 2.79e-09 1.22e-04 0s 11 8.79905472e+04 8.79903720e+04 1.52e-10 1.97e-09 7.69e-05 0s 12 8.79905364e+04 8.79904430e+04 4.97e-11 1.08e-09 4.10e-05 0s 13 8.79905319e+04 8.79905011e+04 2.55e-11 3.34e-10 1.35e-05 0s Barrier solved model in 13 iterations and 0.05 seconds Optimal objective 8.79905319e+04