Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:34 2013 Optimize a model with 1500 rows, 2252 columns and 3000 nonzeros Model has 750 quadratic constraints Presolve time: 0.00s Presolved: 1500 rows, 2252 columns, 3000 nonzeros Presolved model has 750 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.250e+03 Factor NZ : 5.253e+03 (roughly 2 MBytes of memory) Factor Ops : 1.876e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.37467526e+05 0.00000000e+00 2.84e-14 4.88e-01 2.92e+02 0s 1 1.28610568e+05 2.67970307e+04 2.01e-08 5.04e-05 4.53e+01 0s 2 9.77145012e+04 7.76201623e+04 2.66e-08 6.68e-06 8.93e+00 0s 3 8.92287780e+04 8.58206656e+04 4.98e-09 1.19e-06 1.51e+00 0s 4 8.74181994e+04 8.65980596e+04 2.69e-11 5.79e-07 3.65e-01 0s 5 8.73828917e+04 8.71533612e+04 6.40e-10 2.13e-07 1.02e-01 0s 6 8.73715804e+04 8.73584282e+04 1.49e-10 2.99e-08 5.85e-03 0s 7 8.73703292e+04 8.73674972e+04 1.84e-12 6.63e-09 1.26e-03 0s 8 8.73700209e+04 8.73688618e+04 5.04e-13 2.81e-09 5.15e-04 0s 9 8.73699776e+04 8.73690690e+04 3.77e-13 2.21e-09 4.04e-04 0s 10 8.73698686e+04 8.73694481e+04 1.14e-13 1.10e-09 1.87e-04 0s 11 8.73698168e+04 8.73694945e+04 7.11e-14 9.60e-10 1.43e-04 0s 12 8.73697975e+04 8.73695422e+04 2.84e-14 8.05e-10 1.13e-04 0s 13 8.73697950e+04 8.73695587e+04 2.13e-14 7.50e-10 1.05e-04 0s 14 8.73697842e+04 8.73697211e+04 1.42e-14 2.00e-10 2.80e-05 0s Barrier solved model in 14 iterations and 0.05 seconds Optimal objective 8.73697842e+04