Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:22 2012

Optimize a model with 37 rows, 84 columns and 84 nonzeros
Model has 72 quadratic constraints
Presolve time: 0.42s
Presolved: 37 rows, 84 columns, 84 nonzeros
Variable types: 72 continuous, 12 integer (12 binary)

Root relaxation: objective 0.000000e+00, 6 iterations, 0.00 seconds

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

H    0     0                      21.0000000          -     -      -    0s
     0     0    0.00000    0   12   21.00000    0.00000   100%     -    0s
     0     0    0.60000    0   12   21.00000    0.60000  97.1%     -    0s
     0     2    0.65455    0   12   21.00000    0.65455  96.9%     -    0s
*   13    13               8      16.0000000    4.42857  72.3%   9.8    0s
*   43    15               9      15.0000000    7.83333  47.8%   7.9    0s

Cutting planes:
  Gomory: 1

Explored 87 nodes (682 simplex iterations) in 0.44 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%