Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:02 2012

Optimize a model with 93 rows, 225 columns and 225 nonzeros
Model has 184 quadratic constraints
Presolve time: 1.07s
Presolved: 93 rows, 225 columns, 225 nonzeros
Variable types: 184 continuous, 41 integer (41 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                      48.0000000          -     -      -    1s
     0     0    0.00000    0   21   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   38   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   38   48.00000    0.00000   100%     -    1s
     0     2    0.00000    0   38   48.00000    0.00000   100%     -    1s
H   27    27                      36.0000000    2.70192  92.5%  23.2    1s
*   32    32              18      25.0000000    2.70192  89.2%  23.9    1s
*   50    39              12      21.0000000    2.75000  86.9%  27.1    1s
*  203    84              11      20.0000000    7.86111  60.7%  21.0    1s
*  545    62              10      19.0000000   13.17857  30.6%  20.4    1s
*  640    38              11      18.0000000   14.44444  19.8%  20.2    1s

Cutting planes:
  Gomory: 3

Explored 702 nodes (14332 simplex iterations) in 1.41 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%