Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:43:57 2013 Optimize a model with 800 rows, 1202 columns and 1600 nonzeros Model has 400 quadratic constraints Presolve time: 0.00s Presolved: 800 rows, 1202 columns, 1600 nonzeros Presolved model has 400 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.200e+03 Factor NZ : 2.803e+03 Factor Ops : 1.000e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.38428484e+05 0.00000000e+00 4.26e-14 4.96e-01 2.90e+02 0s 1 6.76908874e+04 1.36867483e+04 1.53e-08 5.07e-05 4.50e+01 0s 2 5.26962055e+04 3.97330759e+04 5.29e-09 6.60e-06 1.08e+01 0s 3 4.58743658e+04 4.46703310e+04 2.72e-09 1.23e-06 1.00e+00 0s 4 4.51004708e+04 4.50391584e+04 8.11e-10 2.76e-07 5.11e-02 0s 5 4.50924100e+04 4.50902308e+04 1.34e-10 1.15e-08 1.82e-03 0s 6 4.50906234e+04 4.50903498e+04 1.67e-11 9.83e-10 2.28e-04 0s 7 4.50904096e+04 4.50903633e+04 2.39e-12 2.96e-10 3.85e-05 0s 8 4.50903896e+04 4.50903685e+04 1.19e-12 8.26e-11 1.76e-05 0s Barrier solved model in 8 iterations and 0.02 seconds Optimal objective 4.50903896e+04