Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:56 2012

Optimize a model with 1 rows, 157 columns and 157 nonzeros
Model has 151 quadratic objective terms
Presolve removed 0 rows and 25 columns
Presolve time: 0.00s
Presolved: 152 rows, 283 columns, 585 nonzeros
Variable types: 0 continuous, 283 integer (282 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 0.000000e+00, 181 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   34   42.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   26   31.00000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   35   17.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   28   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   34   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   34   13.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   18   11.00000    0.00000   100%     -    0s
H  195   146                      10.0000000    0.00000   100%   6.9    0s
H  217   145                       9.0000000    0.00000   100%   8.5    0s
H  244   121                       7.0000000    0.00000   100%   8.4    0s

Cutting planes:
  Cover: 279
  MIR: 5
  Zero half: 2

Explored 560 nodes (19023 simplex iterations) in 0.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%