Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:33 2012

Optimize a model with 1 rows, 30 columns and 30 nonzeros
Model has 43 quadratic objective terms
Presolve time: 0.00s
Presolved: 44 rows, 73 columns, 159 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 55 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   15.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   15   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13   13.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13   13.00000    0.00000   100%     -    0s
     0     2    0.00000    0   13   13.00000    0.00000   100%     -    0s
H   27    20                      12.0000000    0.00000   100%   1.9    0s
H   33    23                      11.0000000    0.00000   100%   2.8    0s
H   73    42                      10.0000000    0.00000   100%   4.3    0s
H   96    53                       9.0000000    0.00000   100%   4.9    0s
*  100    47              10       8.0000000    0.00000   100%   4.8    0s
H  108    37                       7.0000000    1.00000  85.7%   5.1    0s

Cutting planes:
  Cover: 78

Explored 159 nodes (1584 simplex iterations) in 0.03 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%