Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:05 2012 Optimize a model with 181 rows, 540 columns and 540 nonzeros Model has 360 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 2.10s Presolved: 181 rows, 523 columns, 523 nonzeros Variable types: 360 continuous, 163 integer (162 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 89.0000000 - - - 2s 0 0 0.00000 0 51 89.00000 0.00000 100% - 2s 0 0 0.00000 0 72 89.00000 0.00000 100% - 2s 0 0 0.00000 0 72 89.00000 0.00000 100% - 2s 0 2 0.00000 0 72 89.00000 0.00000 100% - 2s * 35 33 28 10.0000000 0.76923 92.3% 34.3 2s * 68 25 10 7.0000000 1.36364 80.5% 31.9 2s H 225 92 7.0000000 2.45361 64.9% 16.7 2s * 243 43 6 6.0000000 3.00000 50.0% 17.8 2s * 252 13 8 5.0000000 3.00000 40.0% 18.5 2s Cutting planes: Gomory: 2 Explored 270 nodes (6475 simplex iterations) in 2.38 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%