Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:35 2012 Optimize a model with 183 rows, 545 columns and 545 nonzeros Model has 364 quadratic constraints Presolve removed 0 rows and 21 columns Presolve time: 2.12s Presolved: 183 rows, 524 columns, 524 nonzeros Variable types: 364 continuous, 160 integer (159 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 85.0000000 - - - 2s 0 0 0.00000 0 3 85.00000 0.00000 100% - 2s 0 0 0.00000 0 2 85.00000 0.00000 100% - 2s 0 0 0.00000 0 100 85.00000 0.00000 100% - 2s 0 2 0.00000 0 99 85.00000 0.00000 100% - 2s * 36 26 23 8.0000000 1.57692 80.3% 33.1 2s H 67 44 8.0000000 2.01736 74.8% 22.4 2s * 67 32 28 7.0000000 2.01736 71.2% 22.4 2s * 556 22 9 6.0000000 5.47887 8.69% 13.0 2s Cutting planes: Explored 588 nodes (8850 simplex iterations) in 2.50 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%