Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:08 2012

Optimize a model with 91 rows, 221 columns and 221 nonzeros
Model has 180 quadratic constraints
Presolve time: 1.05s
Presolved: 91 rows, 221 columns, 221 nonzeros
Variable types: 180 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                      49.0000000          -     -      -    1s
     0     0    0.00000    0    8   49.00000    0.00000   100%     -    1s
     0     0    0.00000    0   10   49.00000    0.00000   100%     -    1s
     0     0    0.00000    0    3   49.00000    0.00000   100%     -    1s
     0     2    0.00000    0    3   49.00000    0.00000   100%     -    1s
*   15    15              11      21.0000000    1.05000  95.0%  31.3    1s
*   35    23              13      19.0000000    2.75000  85.5%  28.9    1s

Cutting planes:
  Gomory: 1

Explored 938 nodes (18728 simplex iterations) in 1.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%