Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:14 2012
Optimize a model with 1 rows, 54 columns and 54 nonzeros
Model has 73 quadratic objective terms
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 74 rows, 124 columns, 270 nonzeros
Variable types: 0 continuous, 124 integer (123 binary)
Found heuristic solution: objective 20.0000000
Root relaxation: objective 0.000000e+00, 97 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 23 20.00000 0.00000 100% - 0s
0 0 0.00000 0 18 20.00000 0.00000 100% - 0s
H 0 0 17.0000000 0.00000 100% - 0s
H 0 0 15.0000000 0.00000 100% - 0s
0 0 0.00000 0 23 15.00000 0.00000 100% - 0s
0 0 0.00000 0 15 15.00000 0.00000 100% - 0s
0 0 0.00000 0 16 15.00000 0.00000 100% - 0s
0 0 0.00000 0 22 15.00000 0.00000 100% - 0s
0 0 0.00000 0 22 15.00000 0.00000 100% - 0s
H 0 0 11.0000000 0.00000 100% - 0s
0 2 0.00000 0 22 11.00000 0.00000 100% - 0s
* 124 75 18 10.0000000 0.00000 100% 6.2 0s
* 159 61 15 9.0000000 0.00000 100% 7.1 0s
Cutting planes:
Cover: 139
Explored 303 nodes (5099 simplex iterations) in 0.08 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%