Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:07:52 2013 Optimize a model with 50000 rows, 75002 columns and 100000 nonzeros Model has 25000 quadratic constraints Presolve time: 0.05s Presolved: 50000 rows, 75002 columns, 100000 nonzeros Presolved model has 25000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 7.500e+04 Factor NZ : 1.750e+05 (roughly 50 MBytes of memory) Factor Ops : 6.250e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.16786265e+07 0.00000000e+00 1.66e-12 5.06e-01 2.99e+02 0s 1 4.34462308e+06 8.79137356e+05 5.49e-07 4.79e-05 4.62e+01 0s 2 3.26439395e+06 2.59239510e+06 7.94e-08 2.94e-06 8.96e+00 0s 3 2.99963484e+06 2.86968783e+06 1.74e-08 3.65e-07 1.73e+00 0s 4 2.93130885e+06 2.90276242e+06 3.01e-09 9.55e-08 3.81e-01 1s 5 2.91554872e+06 2.91187066e+06 7.56e-11 2.33e-08 4.90e-02 1s 6 2.91522589e+06 2.91496928e+06 3.24e-11 1.03e-10 3.42e-03 1s 7 2.91500748e+06 2.91498384e+06 2.88e-12 4.95e-12 3.15e-04 1s 8 2.91499225e+06 2.91498407e+06 1.38e-12 2.00e-12 1.09e-04 1s 9 2.91498886e+06 2.91498423e+06 8.53e-13 1.64e-12 6.17e-05 1s 10 2.91498825e+06 2.91498425e+06 2.95e-12 1.92e-12 5.33e-05 1s 11 2.91498720e+06 2.91498426e+06 3.28e-12 2.26e-12 3.92e-05 1s 12 2.91498616e+06 2.91498428e+06 2.22e-12 5.27e-11 2.51e-05 1s Barrier solved model in 12 iterations and 1.42 seconds Optimal objective 2.91498616e+06