Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:05 2012

Optimize a model with 1 rows, 40 columns and 40 nonzeros
Model has 43 quadratic objective terms
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 44 rows, 81 columns, 167 nonzeros
Variable types: 0 continuous, 81 integer (80 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 54 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    8   17.00000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    5    5.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9    5.00000    0.00000   100%     -    0s
     0     0    0.00000    0    7    5.00000    0.00000   100%     -    0s
     0     0    0.00000    0    8    5.00000    0.00000   100%     -    0s
     0     0    0.00000    0    8    5.00000    0.00000   100%     -    0s
     0     2    0.00000    0    8    5.00000    0.00000   100%     -    0s
*  106    33               8       4.0000000    0.00000   100%   4.4    0s

Cutting planes:
  Cover: 75

Explored 154 nodes (1456 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%