Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:47:18 2013 Optimize a model with 8000 rows, 12002 columns and 16000 nonzeros Model has 4000 quadratic constraints Presolve time: 0.01s Presolved: 8000 rows, 12002 columns, 16000 nonzeros Presolved model has 4000 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.200e+04 Factor NZ : 2.800e+04 (roughly 8 MBytes of memory) Factor Ops : 1.000e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.44985646e+06 0.00000000e+00 4.26e-14 4.99e-01 2.97e+02 0s 1 6.84947142e+05 1.36913028e+05 5.58e-08 4.86e-05 4.57e+01 0s 2 5.12754965e+05 4.05726420e+05 8.94e-08 5.79e-06 8.92e+00 0s 3 4.72159065e+05 4.51638547e+05 1.34e-08 1.64e-06 1.71e+00 0s 4 4.58847590e+05 4.57079016e+05 3.53e-09 1.68e-07 1.47e-01 0s 5 4.57872565e+05 4.57651689e+05 3.52e-11 2.63e-08 1.84e-02 0s 6 4.57787764e+05 4.57776501e+05 2.37e-12 8.98e-10 9.39e-04 0s 7 4.57782133e+05 4.57781115e+05 3.34e-10 4.31e-10 8.48e-05 0s 8 4.57781503e+05 4.57781160e+05 1.12e-10 2.20e-11 2.86e-05 0s Barrier solved model in 8 iterations and 0.14 seconds Optimal objective 4.57781503e+05