Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:09 2012

Optimize a model with 175 rows, 530 columns and 530 nonzeros
Model has 348 quadratic constraints
Presolve removed 0 rows and 28 columns
Presolve time: 2.03s
Presolved: 175 rows, 502 columns, 502 nonzeros
Variable types: 348 continuous, 154 integer (153 binary)

Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds

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

H    0     0                      99.0000000          -     -      -    2s
     0     0    0.00000    0  100   99.00000    0.00000   100%     -    2s
     0     0    0.00000    0  129   99.00000    0.00000   100%     -    2s
     0     0    0.00000    0  125   99.00000    0.00000   100%     -    2s
     0     2    0.00000    0  125   99.00000    0.00000   100%     -    2s
H   40    40                      12.0000000    1.55930  87.0%  31.1    2s
*   42    36              23      11.0000000    1.55930  85.8%  30.0    2s
*   69    47              17      10.0000000    1.56883  84.3%  24.0    2s
*   93    58              18       9.0000000    1.85185  79.4%  22.2    2s
*  111    42              16       8.0000000    4.00000  50.0%  21.2    2s
H  183    50                       8.0000000    4.89784  38.8%  21.2    2s
*  515     0              19       7.0000000    7.00000   0.0%  16.7    2s

Cutting planes:
  Gomory: 2

Explored 516 nodes (10638 simplex iterations) in 2.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%