Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:54 2012 Optimize a model with 177 rows, 525 columns and 525 nonzeros Model has 352 quadratic constraints Presolve removed 0 rows and 21 columns Presolve time: 2.05s Presolved: 177 rows, 504 columns, 504 nonzeros Variable types: 352 continuous, 152 integer (151 binary) Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 2s 0 0 0.00000 0 66 83.00000 0.00000 100% - 2s 0 0 0.00000 0 109 83.00000 0.00000 100% - 2s 0 0 0.00000 0 109 83.00000 0.00000 100% - 2s 0 2 0.00000 0 106 83.00000 0.00000 100% - 2s H 36 36 14.0000000 1.18182 91.6% 20.4 2s * 119 67 22 12.0000000 2.78182 76.8% 16.5 2s * 181 67 20 11.0000000 3.00000 72.7% 16.5 2s * 216 58 12 9.0000000 3.40404 62.2% 20.3 2s Cutting planes: Gomory: 1 Explored 730 nodes (13952 simplex iterations) in 2.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%