Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:56 2012

Optimize a model with 139 rows, 347 columns and 347 nonzeros
Model has 276 quadratic constraints
Presolve time: 1.61s
Presolved: 139 rows, 347 columns, 347 nonzeros
Variable types: 276 continuous, 71 integer (71 binary)

Root relaxation: objective 0.000000e+00, 35 iterations, 0.00 seconds

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

H    0     0                      61.0000000          -     -      -    1s
     0     0    0.00000    0   21   61.00000    0.00000   100%     -    1s
     0     0    0.00000    0    4   61.00000    0.00000   100%     -    1s
     0     0    0.00000    0    4   61.00000    0.00000   100%     -    1s
     0     2    0.00000    0    4   61.00000    0.00000   100%     -    1s
*   26    26              21      30.0000000    4.00000  86.7%  41.1    1s
*   66    43              16      28.0000000    5.54286  80.2%  35.5    1s
H  259   119                      27.0000000    9.86731  63.5%  25.1    1s
*  380   129              18      25.0000000   12.70588  49.2%  23.3    1s
*  685   140              12      24.0000000   15.70975  34.5%  21.8    2s

Cutting planes:
  Gomory: 1

Explored 1290 nodes (27018 simplex iterations) in 2.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%