Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:37 2012

Optimize a model with 95 rows, 231 columns and 231 nonzeros
Model has 188 quadratic constraints
Presolve time: 1.10s
Presolved: 95 rows, 231 columns, 231 nonzeros
Variable types: 188 continuous, 43 integer (43 binary)

Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds

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

H    0     0                      45.0000000          -     -      -    1s
     0     0    0.00000    0   19   45.00000    0.00000   100%     -    1s
     0     0    0.00000    0    4   45.00000    0.00000   100%     -    1s
     0     0    0.00000    0    4   45.00000    0.00000   100%     -    1s
     0     2    0.00000    0    4   45.00000    0.00000   100%     -    1s
*   23    23              16      29.0000000    2.00000  93.1%  32.8    1s
*   26    22              18      28.0000000    2.00000  92.9%  30.1    1s
H   44    36                      25.0000000    2.22222  91.1%  26.7    1s
*   45    34              16      24.0000000    2.22222  90.7%  26.3    1s
*   62    40              13      21.0000000    5.37500  74.4%  25.9    1s
*   63    35              13      19.0000000    5.37500  71.7%  25.5    1s

Cutting planes:
  Gomory: 1

Explored 372 nodes (9017 simplex iterations) in 1.31 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%