Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:02:11 2012 Optimize a model with 203 rows, 602 columns and 602 nonzeros Model has 404 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 2.39s Presolved: 203 rows, 583 columns, 583 nonzeros Variable types: 404 continuous, 179 integer (178 binary) Root relaxation: objective 0.000000e+00, 71 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 110.0000000 - - - 2s 0 0 0.00000 0 2 110.00000 0.00000 100% - 2s 0 0 0.00000 0 2 110.00000 0.00000 100% - 2s 0 0 0.00000 0 2 110.00000 0.00000 100% - 2s 0 2 0.00000 0 115 110.00000 0.00000 100% - 2s * 42 37 28 13.0000000 1.69565 87.0% 51.1 2s * 60 31 17 12.0000000 1.70769 85.8% 44.2 2s H 80 38 11.0000000 2.23077 79.7% 39.2 2s * 84 30 13 10.0000000 2.23077 77.7% 38.4 2s * 473 50 9 9.0000000 7.27119 19.2% 22.6 2s Cutting planes: Gomory: 1 Explored 566 nodes (12784 simplex iterations) in 2.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%