Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:05 2012

Optimize a model with 1 rows, 40 columns and 40 nonzeros
Model has 42 quadratic objective terms
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 43 rows, 79 columns, 163 nonzeros
Variable types: 0 continuous, 79 integer (78 binary)
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 58 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   15   15.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0    7    9.00000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10    6.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10    6.00000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   10    5.00000    0.00000   100%     -    0s
*  115    19               7       4.0000000    1.00000  75.0%   5.6    0s

Cutting planes:
  Gomory: 1
  Cover: 71
  Zero half: 1

Explored 137 nodes (1215 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%