Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:35 2012 Optimize a model with 79 rows, 215 columns and 215 nonzeros Model has 156 quadratic constraints Presolve time: 0.91s Presolved: 79 rows, 215 columns, 215 nonzeros Variable types: 156 continuous, 59 integer (59 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 49.0000000 - - - 0s 0 0 0.00000 0 8 49.00000 0.00000 100% - 0s 0 0 0.00000 0 40 49.00000 0.00000 100% - 0s 0 0 0.00000 0 34 49.00000 0.00000 100% - 0s 0 2 0.00000 0 34 49.00000 0.00000 100% - 0s * 28 15 17 8.0000000 2.20000 72.5% 22.9 0s * 102 6 6 7.0000000 6.55114 6.41% 18.8 0s Cutting planes: Explored 109 nodes (2434 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%