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

Optimize a model with 1 rows, 42 columns and 42 nonzeros
Model has 50 quadratic objective terms
Presolve removed 0 rows and 4 columns
Presolve time: 0.00s
Presolved: 51 rows, 88 columns, 188 nonzeros
Variable types: 0 continuous, 88 integer (87 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 0.000000e+00, 68 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   13   16.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   22   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   17   13.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   12    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   19    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    9.00000    0.00000   100%     -    0s
     0     2    0.00000    0   11    9.00000    0.00000   100%     -    0s
H   74    41                       7.0000000    0.00000   100%   3.4    0s
H  166    46                       6.0000000    1.00000  83.3%   6.1    0s

Cutting planes:
  Cover: 95
  MIR: 5
  Zero half: 2

Explored 231 nodes (2761 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%