Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:33:24 2012

Optimize a model with 133 rows, 341 columns and 341 nonzeros
Model has 264 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.53s
Presolved: 133 rows, 340 columns, 340 nonzeros
Variable types: 264 continuous, 76 integer (75 binary)

Root relaxation: objective 0.000000e+00, 37 iterations, 0.00 seconds

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

H    0     0                      68.0000000          -     -      -    1s
     0     0    0.00000    0   61   68.00000    0.00000   100%     -    1s
     0     0    0.36637    0   75   68.00000    0.36637  99.5%     -    1s
     0     2    0.37155    0   75   68.00000    0.37155  99.5%     -    1s
*   35    32              24      25.0000000    3.23123  87.1%  20.1    1s
H  139    91                      23.0000000    6.00000  73.9%  26.0    1s
*  380   143              16      21.0000000   10.12000  51.8%  22.3    1s
*  528   117              10      20.0000000   12.61394  36.9%  23.3    1s
*  669    77               8      19.0000000   13.65517  28.1%  24.4    2s

Cutting planes:
  Gomory: 2

Explored 823 nodes (20791 simplex iterations) in 2.14 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%