Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:49:48 2012 Optimize a model with 171 rows, 517 columns and 517 nonzeros Model has 340 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 1.99s Presolved: 171 rows, 497 columns, 497 nonzeros Variable types: 340 continuous, 157 integer (156 binary) Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 92.0000000 - - - 1s 0 0 0.00000 0 70 92.00000 0.00000 100% - 2s 0 0 0.00000 0 118 92.00000 0.00000 100% - 2s 0 0 0.00000 0 118 92.00000 0.00000 100% - 2s 0 2 0.00000 0 118 92.00000 0.00000 100% - 2s * 23 21 14 7.0000000 1.95349 72.1% 55.4 2s H 46 28 7.0000000 2.31085 67.0% 35.8 2s * 46 16 8 6.0000000 2.31085 61.5% 35.8 2s * 50 6 4 5.0000000 2.43956 51.2% 34.6 2s Cutting planes: Explored 61 nodes (3773 simplex iterations) in 2.18 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%