Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:44 2012

Optimize a model with 1 rows, 36 columns and 36 nonzeros
Model has 37 quadratic objective terms
Presolve removed 0 rows and 5 columns
Presolve time: 0.00s
Presolved: 38 rows, 68 columns, 142 nonzeros
Variable types: 0 continuous, 68 integer (67 binary)
Found heuristic solution: objective 13.0000000

Root relaxation: objective 0.000000e+00, 46 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    7   13.00000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    9    6.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15    6.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15    6.00000    0.00000   100%     -    0s
     0     2    0.00000    0    7    6.00000    0.00000   100%     -    0s
H   27    12                       5.0000000    0.00000   100%   1.9    0s
H  114    22                       4.0000000    0.00000   100%   5.5    0s

Cutting planes:
  Cover: 62

Explored 138 nodes (937 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%