Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:29:42 2012

Optimize a model with 132 rows, 337 columns and 337 nonzeros
Model has 262 quadratic constraints
Presolve time: 1.53s
Presolved: 132 rows, 337 columns, 337 nonzeros
Variable types: 262 continuous, 75 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                      71.0000000          -     -      -    1s
     0     0    0.00000    0   35   71.00000    0.00000   100%     -    1s
     0     0    0.00000    0   69   71.00000    0.00000   100%     -    1s
     0     0    0.00000    0   64   71.00000    0.00000   100%     -    1s
     0     2    0.00000    0   64   71.00000    0.00000   100%     -    1s
H   40    40                      25.0000000    4.56716  81.7%  28.9    1s
*   43    41              22      23.0000000    4.56716  80.1%  27.6    1s
*   70    51              18      21.0000000    4.61290  78.0%  29.2    1s
*  143    75              10      20.0000000    5.90244  70.5%  32.8    1s

Cutting planes:

Explored 860 nodes (24291 simplex iterations) in 2.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%