Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:13:00 2012 Optimize a model with 211 rows, 629 columns and 629 nonzeros Model has 420 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 2.45s Presolved: 211 rows, 606 columns, 606 nonzeros Variable types: 420 continuous, 186 integer (185 binary) Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 105.0000000 - - - 2s 0 0 0.00000 0 3 105.00000 0.00000 100% - 2s 0 0 0.00000 0 43 105.00000 0.00000 100% - 2s 0 0 0.00000 0 106 105.00000 0.00000 100% - 2s 0 2 0.00000 0 91 105.00000 0.00000 100% - 2s * 25 25 17 12.0000000 1.11765 90.7% 47.5 2s H 124 54 10.0000000 2.55814 74.4% 22.8 2s * 124 40 16 9.0000000 2.55814 71.6% 22.8 2s H 317 46 9.0000000 5.17115 42.5% 21.8 2s Cutting planes: Explored 463 nodes (11052 simplex iterations) in 2.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.999999998716e+00, best bound 8.999999998716e+00, gap 0.0%