Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:34 2012

Optimize a model with 86 rows, 210 columns and 210 nonzeros
Model has 170 quadratic constraints
Presolve time: 0.99s
Presolved: 86 rows, 210 columns, 210 nonzeros
Variable types: 170 continuous, 40 integer (40 binary)

Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds

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

H    0     0                      44.0000000          -     -      -    0s
     0     0    0.00000    0   20   44.00000    0.00000   100%     -    1s
     0     0    0.00000    0   24   44.00000    0.00000   100%     -    1s
     0     0    0.00000    0   24   44.00000    0.00000   100%     -    1s
     0     2    0.00000    0   23   44.00000    0.00000   100%     -    1s
*   24    24              16      23.0000000    5.50000  76.1%  24.2    1s
*   66    36              12      20.0000000    6.59091  67.0%  18.2    1s
H  157    68                      19.0000000    9.56000  49.7%  17.2    1s
*  158    56              14      18.0000000    9.56000  46.9%  17.1    1s

Cutting planes:
  Gomory: 1

Explored 440 nodes (6377 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%