Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:43:43 2013 Optimize a model with 280 rows, 422 columns and 560 nonzeros Model has 140 quadratic constraints Presolve time: 0.00s Presolved: 280 rows, 422 columns, 560 nonzeros Presolved model has 140 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 4.200e+02 Factor NZ : 9.830e+02 Factor Ops : 3.505e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.10240627e+05 0.00000000e+00 2.84e-14 4.15e-01 2.72e+02 0s 1 2.29427818e+04 5.17435250e+03 4.71e-10 5.44e-05 4.23e+01 0s 2 1.83651652e+04 1.41241261e+04 4.37e-10 8.20e-06 1.01e+01 0s 3 1.62863749e+04 1.58304874e+04 2.14e-09 8.75e-07 1.09e+00 0s 4 1.59648117e+04 1.59341777e+04 1.51e-10 2.76e-09 7.29e-02 0s 5 1.59383315e+04 1.59361451e+04 9.92e-12 4.84e-12 5.21e-03 0s 6 1.59369499e+04 1.59363059e+04 3.04e-12 8.97e-14 1.53e-03 0s 7 1.59366217e+04 1.59363343e+04 1.36e-12 1.63e-12 6.84e-04 0s 8 1.59365469e+04 1.59363354e+04 9.66e-13 1.55e-12 5.03e-04 0s 9 1.59365170e+04 1.59363460e+04 8.53e-13 1.13e-12 4.07e-04 0s 10 1.59364892e+04 1.59363469e+04 8.24e-13 1.25e-12 3.39e-04 0s 11 1.59364745e+04 1.59363600e+04 7.00e-13 3.73e-12 2.72e-04 0s 12 1.59364507e+04 1.59363732e+04 5.08e-13 1.70e-12 1.85e-04 0s 13 1.59364406e+04 1.59363791e+04 4.01e-13 1.13e-11 1.47e-04 0s 14 1.59364272e+04 1.59363803e+04 2.98e-13 9.92e-12 1.11e-04 0s 15 1.59364147e+04 1.59363847e+04 1.85e-13 1.15e-11 7.15e-05 0s 16 1.59364124e+04 1.59363851e+04 1.04e-12 1.10e-11 6.50e-05 0s 17 1.59364064e+04 1.59363895e+04 5.47e-13 7.16e-12 4.02e-05 0s 18 1.59364025e+04 1.59363963e+04 2.80e-12 1.42e-12 1.47e-05 0s Barrier solved model in 18 iterations and 0.02 seconds Optimal objective 1.59364025e+04