Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:43 2012

Optimize a model with 1 rows, 36 columns and 36 nonzeros
Model has 38 quadratic objective terms
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 39 rows, 71 columns, 147 nonzeros
Variable types: 0 continuous, 71 integer (70 binary)
Found heuristic solution: objective 10.0000000

Root relaxation: objective 0.000000e+00, 50 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   10.00000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    6    7.00000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    4    6.00000    0.00000   100%     -    0s
H    0     0                       4.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10    4.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10    4.00000    0.00000   100%     -    0s
     0     2    0.00000    0    7    4.00000    0.00000   100%     -    0s

Cutting planes:
  Cover: 68

Explored 144 nodes (953 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%