Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:57 2012 Optimize a model with 82 rows, 179 columns and 179 nonzeros Model has 162 quadratic constraints Presolve time: 0.94s Presolved: 82 rows, 179 columns, 179 nonzeros Variable types: 162 continuous, 17 integer (17 binary) Root relaxation: objective 0.000000e+00, 8 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 43.0000000 - - - 0s 0 0 0.00000 0 14 43.00000 0.00000 100% - 0s 0 0 0.45098 0 17 43.00000 0.45098 99.0% - 0s 0 2 0.47619 0 17 43.00000 0.47619 98.9% - 0s * 23 23 12 38.0000000 6.50000 82.9% 25.5 0s * 59 40 11 37.0000000 8.33333 77.5% 21.4 0s * 75 46 11 34.0000000 8.42744 75.2% 21.3 0s * 79 42 12 33.0000000 8.42744 74.5% 20.4 0s * 151 46 9 31.0000000 11.43537 63.1% 20.3 1s * 316 31 10 30.0000000 21.58367 28.1% 19.1 1s Cutting planes: Gomory: 1 Explored 390 nodes (7533 simplex iterations) in 1.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%