Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:49 2012 Optimize a model with 180 rows, 547 columns and 547 nonzeros Model has 358 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 2.09s Presolved: 180 rows, 529 columns, 529 nonzeros Variable types: 358 continuous, 171 integer (170 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 84.0000000 - - - 2s 0 0 0.00000 0 95 84.00000 0.00000 100% - 2s 0 0 0.00000 0 107 84.00000 0.00000 100% - 2s 0 0 0.00000 0 107 84.00000 0.00000 100% - 2s 0 2 0.00000 0 106 84.00000 0.00000 100% - 2s H 27 27 7.0000000 1.32353 81.1% 33.6 2s * 30 18 22 6.0000000 1.32353 77.9% 34.0 2s H 38 18 6.0000000 2.34545 60.9% 33.2 2s * 87 17 9 5.0000000 3.33333 33.3% 25.0 2s Cutting planes: Gomory: 2 Explored 117 nodes (4776 simplex iterations) in 2.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%