Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:52 2012

Optimize a model with 57 rows, 158 columns and 158 nonzeros
Model has 112 quadratic constraints
Presolve removed 0 rows and 2 columns
Presolve time: 0.65s
Presolved: 57 rows, 156 columns, 156 nonzeros
Variable types: 112 continuous, 44 integer (43 binary)

Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                      31.0000000          -     -      -    0s
     0     0    0.00000    0   22   31.00000    0.00000   100%     -    0s
     0     0    0.00000    0   22   31.00000    0.00000   100%     -    0s
     0     0    0.00000    0   36   31.00000    0.00000   100%     -    0s
     0     2    0.00000    0   36   31.00000    0.00000   100%     -    0s
H    8     8                      19.0000000    1.25000  93.4%  34.2    0s
*   24    20              14       7.0000000    1.25000  82.1%  21.5    0s

Cutting planes:
  Gomory: 20

Explored 228 nodes (3004 simplex iterations) in 0.73 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%