Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:35 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 6.53047717e+05 0.00000000e+00 2.84e-14 4.96e-01 2.99e+02 0s 1 1.27066760e+05 2.58726517e+04 1.13e-08 4.87e-05 4.50e+01 0s 2 1.00975834e+05 7.73820385e+04 3.36e-08 7.79e-06 1.05e+01 0s 3 8.86284224e+04 8.60047083e+04 1.71e-08 1.36e-06 1.17e+00 0s 4 8.68250643e+04 8.66329584e+04 6.88e-10 1.10e-07 8.54e-02 0s 5 8.67516938e+04 8.67128212e+04 4.86e-11 3.17e-08 1.73e-02 0s 6 8.67477527e+04 8.67283843e+04 1.86e-11 1.64e-08 8.61e-03 0s 7 8.67455401e+04 8.67443265e+04 2.34e-12 7.34e-10 5.39e-04 0s 8 8.67452093e+04 8.67447040e+04 5.34e-10 3.37e-10 2.25e-04 0s 9 8.67450539e+04 8.67449801e+04 7.44e-10 7.17e-11 3.28e-05 0s Barrier solved model in 9 iterations and 0.03 seconds Optimal objective 8.67450539e+04