Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:26 2012

Optimize a model with 1 rows, 138 columns and 138 nonzeros
Model has 116 quadratic objective terms
Presolve removed 0 rows and 24 columns
Presolve time: 0.00s
Presolved: 117 rows, 230 columns, 462 nonzeros
Variable types: 0 continuous, 230 integer (229 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 149 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   37   33.00000    0.00000   100%     -    0s
     0     0    0.00000    0   27   33.00000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   17   28.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   11.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   19    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12    9.00000    0.00000   100%     -    0s
     0     2    0.00000    0   11    9.00000    0.00000   100%     -    0s
H   12    12                       5.0000000    0.00000   100%   1.6    0s
H  374    93                       4.0000000    0.00000   100%   6.6    0s
H  383    68                       3.0000000    0.00000   100%   6.5    0s

Cutting planes:
  Cover: 201

Explored 463 nodes (7497 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%