Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:46 2012 Optimize a model with 177 rows, 533 columns and 533 nonzeros Model has 352 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 2.05s Presolved: 177 rows, 510 columns, 510 nonzeros Variable types: 352 continuous, 158 integer (157 binary) Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 89.0000000 - - - 2s 0 0 0.00000 0 78 89.00000 0.00000 100% - 2s 0 0 0.00000 0 128 89.00000 0.00000 100% - 2s 0 0 0.00000 0 110 89.00000 0.00000 100% - 2s 0 2 0.00000 0 81 89.00000 0.00000 100% - 2s * 28 28 19 11.0000000 1.66216 84.9% 43.0 2s H 54 41 10.0000000 1.66216 83.4% 27.4 2s H 162 86 9.0000000 3.00000 66.7% 16.8 2s * 172 14 6 6.0000000 3.00000 50.0% 18.8 2s Cutting planes: Gomory: 2 Explored 202 nodes (6010 simplex iterations) in 2.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%