Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:45:24 2013 Optimize a model with 3000 rows, 4502 columns and 6000 nonzeros Model has 1500 quadratic constraints Presolve time: 0.00s Presolved: 3000 rows, 4502 columns, 6000 nonzeros Presolved model has 1500 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 4.500e+03 Factor NZ : 1.050e+04 (roughly 3 MBytes of memory) Factor Ops : 3.750e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.30072432e+06 0.00000000e+00 2.84e-14 4.89e-01 2.99e+02 0s 1 2.56876740e+05 5.13858105e+04 2.11e-08 4.99e-05 4.57e+01 0s 2 2.01988928e+05 1.52996257e+05 7.26e-08 6.08e-06 1.09e+01 0s 3 1.75984880e+05 1.71515847e+05 1.57e-08 1.22e-06 9.93e-01 0s 4 1.72490765e+05 1.72330475e+05 5.74e-10 6.87e-09 3.56e-02 0s 5 1.72432238e+05 1.72417555e+05 4.83e-11 6.54e-10 3.26e-03 0s 6 1.72427239e+05 1.72426325e+05 4.09e-12 1.88e-11 2.03e-04 0s 7 1.72426795e+05 1.72426575e+05 1.27e-09 1.03e-09 4.89e-05 0s 8 1.72426724e+05 1.72426626e+05 3.22e-09 1.36e-10 2.17e-05 0s Barrier solved model in 8 iterations and 0.06 seconds Optimal objective 1.72426724e+05