Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:01:56 2012 Optimize a model with 150 rows, 323 columns and 323 nonzeros Model has 298 quadratic constraints Presolve time: 1.74s Presolved: 150 rows, 323 columns, 323 nonzeros Variable types: 298 continuous, 25 integer (25 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 76.0000000 - - - 1s 0 0 0.00000 0 20 76.00000 0.00000 100% - 1s 0 0 0.46500 0 25 76.00000 0.46500 99.4% - 1s 0 2 0.49479 0 25 76.00000 0.49479 99.3% - 1s * 36 36 19 68.0000000 6.41250 90.6% 39.5 1s * 67 57 17 63.0000000 6.50000 89.7% 35.1 1s * 96 74 16 62.0000000 8.87850 85.7% 34.7 1s H 142 114 60.0000000 9.14286 84.8% 36.4 1s * 992 398 47 59.0000000 28.02068 52.5% 42.0 3s 2551 729 51.08333 45 183 59.00000 32.57143 44.8% 30.0 5s H 2578 715 58.0000000 32.60000 43.8% 29.9 5s 5949 975 49.62500 39 181 58.00000 43.66667 24.7% 24.7 10s * 6043 945 41 57.0000000 43.88889 23.0% 24.6 10s Explored 8899 nodes (201882 simplex iterations) in 13.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.700000000000e+01, best bound 5.700000000000e+01, gap 0.0%