Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:16 2012
Optimize a model with 1 rows, 27 columns and 27 nonzeros
Model has 41 quadratic objective terms
Presolve time: 0.00s
Presolved: 42 rows, 68 columns, 150 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 20.0000000
Root relaxation: objective 0.000000e+00, 57 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 16 20.00000 0.00000 100% - 0s
H 0 0 16.0000000 0.00000 100% - 0s
0 0 0.00000 0 14 16.00000 0.00000 100% - 0s
H 0 0 13.0000000 0.00000 100% - 0s
H 0 0 12.0000000 0.00000 100% - 0s
0 0 0.00000 0 31 12.00000 0.00000 100% - 0s
0 0 0.00000 0 16 12.00000 0.00000 100% - 0s
0 2 0.00000 0 15 12.00000 0.00000 100% - 0s
H 37 27 10.0000000 0.00000 100% 2.6 0s
H 101 51 9.0000000 1.00000 88.9% 5.7 0s
* 110 49 10 8.0000000 1.00000 87.5% 5.6 0s
Cutting planes:
Cover: 78
Explored 195 nodes (1765 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%