Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:40:59 2012 Optimize a model with 151 rows, 472 columns and 472 nonzeros Model has 300 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 1.76s Presolved: 151 rows, 444 columns, 444 nonzeros Variable types: 300 continuous, 144 integer (143 binary) Root relaxation: objective 0.000000e+00, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 85.0000000 - - - 1s 0 0 0.00000 0 14 85.00000 0.00000 100% - 1s 0 0 0.00000 0 71 85.00000 0.00000 100% - 1s 0 0 0.00000 0 71 85.00000 0.00000 100% - 1s 0 2 0.00000 0 71 85.00000 0.00000 100% - 1s * 22 21 15 6.0000000 0.22581 96.2% 66.7 1s H 49 37 6.0000000 0.23830 96.0% 34.8 1s * 50 23 25 5.0000000 0.23830 95.2% 34.5 1s * 65 25 13 4.0000000 0.35294 91.2% 33.5 1s H 124 34 4.0000000 1.87399 53.2% 21.6 1s Cutting planes: Gomory: 1 Explored 425 nodes (6811 simplex iterations) in 2.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.999999998917e+00, best bound 3.999999998917e+00, gap 0.0%