Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:38:40 2013 Optimize a model with 60 rows, 92 columns and 120 nonzeros Model has 30 quadratic constraints Presolve time: 0.00s Presolved: 60 rows, 92 columns, 120 nonzeros Presolved model has 30 second-order cone constraints Ordering time: 0.00s Barrier statistics: Free vars : 2 AA' NZ : 9.000e+02 Factor NZ : 1.606e+03 Factor Ops : 5.343e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.90897557e+04 0.00000000e+00 1.28e-13 8.11e-01 3.31e+02 0s 1 5.27145875e+03 1.23387148e+03 2.92e-10 5.09e-05 4.49e+01 0s 2 4.34815078e+03 3.51681401e+03 5.87e-09 1.52e-05 9.24e+00 0s 3 4.01244776e+03 3.90169179e+03 6.03e-10 7.87e-07 1.23e+00 0s 4 3.92331470e+03 3.91700624e+03 4.03e-11 7.85e-13 7.01e-02 0s 5 3.91939937e+03 3.91778474e+03 1.01e-11 2.08e-13 1.79e-02 0s 6 3.91864690e+03 3.91801119e+03 3.81e-12 3.33e-13 7.06e-03 0s 7 3.91832128e+03 3.91810522e+03 1.17e-12 1.24e-12 2.40e-03 0s 8 3.91826431e+03 3.91812596e+03 7.11e-13 7.52e-13 1.54e-03 0s 9 3.91823288e+03 3.91813681e+03 4.05e-13 3.58e-12 1.07e-03 0s 10 3.91821358e+03 3.91814568e+03 2.84e-13 2.50e-12 7.54e-04 0s 11 3.91820842e+03 3.91815288e+03 2.42e-13 5.43e-12 6.17e-04 0s 12 3.91819813e+03 3.91815913e+03 2.56e-13 3.56e-12 4.33e-04 0s 13 3.91818380e+03 3.91816245e+03 3.41e-13 2.68e-12 2.37e-04 0s 14 3.91818032e+03 3.91816923e+03 6.54e-13 3.76e-12 1.23e-04 0s 15 3.91817712e+03 3.91817047e+03 3.55e-13 3.52e-12 7.39e-05 0s 16 3.91817631e+03 3.91817058e+03 2.81e-13 6.32e-12 6.36e-05 0s 17 3.91817563e+03 3.91817120e+03 2.10e-13 2.70e-10 4.92e-05 0s 18 3.91817474e+03 3.91817164e+03 1.21e-13 2.19e-10 3.45e-05 0s Barrier solved model in 18 iterations and 0.01 seconds Optimal objective 3.91817474e+03