Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:14:20 2012 Optimize a model with 146 rows, 340 columns and 340 nonzeros Model has 290 quadratic constraints Presolve time: 1.69s Presolved: 146 rows, 340 columns, 340 nonzeros Variable types: 290 continuous, 50 integer (50 binary) Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 70.0000000 - - - 1s 0 0 0.00000 0 48 70.00000 0.00000 100% - 1s 0 0 0.50000 0 50 70.00000 0.50000 99.3% - 1s 0 0 0.50000 0 50 70.00000 0.50000 99.3% - 1s 0 2 0.82609 0 50 70.00000 0.82609 98.8% - 1s * 46 42 30 43.0000000 4.40230 89.8% 29.7 1s * 130 88 16 40.0000000 10.00000 75.0% 32.3 1s H 215 131 39.0000000 13.08333 66.5% 30.3 1s * 734 309 39 37.0000000 20.95122 43.4% 38.7 2s 2653 506 cutoff 33 37.00000 25.00000 32.4% 27.4 5s * 4938 154 37 36.0000000 32.37838 10.1% 24.4 9s Explored 5136 nodes (123735 simplex iterations) in 9.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%