Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:53:10 2012

Optimize a model with 128 rows, 307 columns and 307 nonzeros
Model has 254 quadratic constraints
Presolve time: 1.48s
Presolved: 128 rows, 307 columns, 307 nonzeros
Variable types: 254 continuous, 53 integer (53 binary)

Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds

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

H    0     0                      70.0000000          -     -      -    1s
     0     0    0.00000    0   13   70.00000    0.00000   100%     -    1s
     0     0    0.00000    0   16   70.00000    0.00000   100%     -    1s
     0     0    0.00000    0   53   70.00000    0.00000   100%     -    1s
     0     2    0.00000    0   53   70.00000    0.00000   100%     -    1s
H   45    45                      34.0000000    4.32432  87.3%  28.8    1s
*   45    45              23      31.0000000    4.32432  86.1%  29.4    1s
*   47    43              23      30.0000000    4.32432  85.6%  28.5    1s
H   96    71                      28.0000000    8.52083  69.6%  27.1    1s
*  122    78              14      26.0000000    9.00000  65.4%  27.0    1s
*  123    68              14      25.0000000    9.00000  64.0%  26.8    1s
*  129    61              13      24.0000000    9.00000  62.5%  26.6    1s

Cutting planes:

Explored 610 nodes (19072 simplex iterations) in 1.95 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%