Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:36 2012

Optimize a model with 87 rows, 227 columns and 227 nonzeros
Model has 172 quadratic constraints
Presolve removed 0 rows and 2 columns
Presolve time: 1.00s
Presolved: 87 rows, 225 columns, 225 nonzeros
Variable types: 172 continuous, 53 integer (52 binary)

Root relaxation: objective 0.000000e+00, 27 iterations, 0.00 seconds

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

H    0     0                      50.0000000          -     -      -    1s
     0     0    0.00000    0   31   50.00000    0.00000   100%     -    1s
     0     0    0.08892    0   49   50.00000    0.08892   100%     -    1s
H    0     0                      48.0000000    0.08892   100%     -    1s
     0     2    0.09286    0   49   48.00000    0.09286   100%     -    1s
*   26    26              19      16.0000000    1.50000  90.6%  17.0    1s
H   43    24                      13.0000000    4.22222  67.5%  20.0    1s

Cutting planes:
  Gomory: 4

Explored 281 nodes (5240 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%