Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:29:11 2012 Optimize a model with 152 rows, 459 columns and 459 nonzeros Model has 302 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 1.76s Presolved: 152 rows, 434 columns, 434 nonzeros Variable types: 302 continuous, 132 integer (131 binary) Root relaxation: objective 0.000000e+00, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 68.0000000 - - - 1s 0 0 0.00000 0 32 68.00000 0.00000 100% - 1s 0 0 0.00000 0 5 68.00000 0.00000 100% - 1s 0 0 0.00000 0 5 68.00000 0.00000 100% - 1s 0 2 0.00000 0 78 68.00000 0.00000 100% - 1s * 27 27 20 11.0000000 1.56622 85.8% 42.3 1s * 75 40 17 10.0000000 1.96203 80.4% 22.8 1s * 116 44 14 8.0000000 2.32065 71.0% 19.2 1s * 231 53 9 7.0000000 3.32075 52.6% 16.8 1s Cutting planes: Gomory: 1 Explored 579 nodes (7898 simplex iterations) in 2.09 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%