Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:14 2012

Optimize a model with 1 rows, 54 columns and 54 nonzeros
Model has 69 quadratic objective terms
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 70 rows, 121 columns, 259 nonzeros
Variable types: 0 continuous, 121 integer (120 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 0.000000e+00, 89 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   23   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   19   23.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   33   18.00000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   29   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   16   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   16   14.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   12   12.00000    0.00000   100%     -    0s
H  185    79                       9.0000000    0.00000   100%   6.0    0s
*  198    72              16       8.0000000    0.00000   100%   6.1    0s

Cutting planes:
  Cover: 130
  MIR: 8
  Zero half: 5

Explored 376 nodes (6940 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%