Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:04 2012 Optimize a model with 184 rows, 554 columns and 554 nonzeros Model has 366 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 2.13s Presolved: 184 rows, 531 columns, 531 nonzeros Variable types: 366 continuous, 165 integer (164 binary) Root relaxation: objective 0.000000e+00, 65 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 96.0000000 - - - 2s 0 0 0.00000 0 37 96.00000 0.00000 100% - 2s 0 0 0.00000 0 54 96.00000 0.00000 100% - 2s 0 0 0.00000 0 37 96.00000 0.00000 100% - 2s 0 2 0.00000 0 37 96.00000 0.00000 100% - 2s H 41 41 18.0000000 0.31250 98.3% 27.6 2s * 42 41 30 17.0000000 0.31250 98.2% 28.2 2s H 75 46 10.0000000 0.45613 95.4% 24.2 2s * 75 44 26 9.0000000 0.45613 94.9% 24.7 2s * 255 60 9 8.0000000 2.41912 69.8% 21.5 2s Cutting planes: Explored 844 nodes (15511 simplex iterations) in 2.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%