Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:14 2012 Optimize a model with 1 rows, 35 columns and 35 nonzeros Model has 66 quadratic objective terms Presolve time: 0.00s Presolved: 67 rows, 101 columns, 233 nonzeros Variable types: 0 continuous, 101 integer (101 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 87 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 25 33.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.00000 0 38 25.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 23.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 16.00000 0.00000 100% - 0s 0 0 0.00000 0 17 16.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 2 0.00000 0 17 15.00000 0.00000 100% - 0s * 119 69 9 14.0000000 1.75000 87.5% 8.5 0s * 148 62 9 13.0000000 2.00000 84.6% 9.5 0s * 163 53 9 12.0000000 2.00000 83.3% 10.8 0s Cutting planes: Gomory: 2 Cover: 123 Zero half: 1 Explored 231 nodes (3415 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%