Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:12 2012

Optimize a model with 1 rows, 41 columns and 41 nonzeros
Model has 48 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 49 rows, 88 columns, 184 nonzeros
Variable types: 0 continuous, 88 integer (87 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 67 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   14   17.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   19   11.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   13    8.00000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    7    6.00000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16    5.00000    0.00000   100%     -    0s
     0     0    0.00000    0   16    5.00000    0.00000   100%     -    0s
     0     2    0.00000    0   15    5.00000    0.00000   100%     -    0s
*  118    27               7       4.0000000    1.00000  75.0%   5.7    0s

Cutting planes:
  Cover: 82

Explored 146 nodes (1397 simplex iterations) in 0.03 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%