Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:03 2012

Optimize a model with 1 rows, 39 columns and 39 nonzeros
Model has 80 quadratic objective terms
Presolve time: 0.00s
Presolved: 81 rows, 119 columns, 279 nonzeros
Variable types: 0 continuous, 119 integer (119 binary)
Found heuristic solution: objective 45.0000000
Found heuristic solution: objective 36.0000000

Root relaxation: objective 0.000000e+00, 105 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   27   36.00000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   34   26.00000    0.00000   100%     -    0s
     0     0    0.00000    0   36   26.00000    0.00000   100%     -    0s
     0     0    0.00000    0   33   26.00000    0.00000   100%     -    0s
H    0     0                      25.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   31   19.00000    0.00000   100%     -    0s
H  143    94                      17.0000000    1.00000  94.1%   7.5    0s
H  374    95                      16.0000000    4.28571  73.2%  14.8    0s
*  512    38               8      15.0000000   11.23077  25.1%  16.1    0s

Cutting planes:
  Gomory: 1
  Cover: 154

Explored 560 nodes (8803 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%