Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:27 2012

Optimize a model with 1 rows, 55 columns and 55 nonzeros
Model has 77 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 78 rows, 131 columns, 285 nonzeros
Variable types: 0 continuous, 131 integer (130 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 0.000000e+00, 98 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   24   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   23   23.00000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   36   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15   20.00000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   15   11.00000    0.00000   100%     -    0s
H  178    98                      10.0000000    0.00000   100%   6.3    0s
H  188    86                       9.0000000    0.00000   100%   6.9    0s

Cutting planes:
  Gomory: 1
  Cover: 148

Explored 316 nodes (6345 simplex iterations) in 0.09 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%