Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:25:44 2012

Optimize a model with 129 rows, 329 columns and 329 nonzeros
Model has 256 quadratic constraints
Presolve time: 1.49s
Presolved: 129 rows, 329 columns, 329 nonzeros
Variable types: 256 continuous, 73 integer (73 binary)

Root relaxation: objective 0.000000e+00, 36 iterations, 0.00 seconds

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

H    0     0                      73.0000000          -     -      -    1s
     0     0    0.00000    0   43   73.00000    0.00000   100%     -    1s
     0     0    0.10628    0   69   73.00000    0.10628   100%     -    1s
H    0     0                      70.0000000    0.10628   100%     -    1s
     0     2    0.23633    0   69   70.00000    0.23633   100%     -    1s
*   39    39              23      25.0000000    2.02804  91.9%  28.6    1s
H   60    52                      24.0000000    2.24147  90.7%  30.0    1s
H   64    49                      23.0000000    2.24147  90.3%  29.8    1s
*  221   119              16      22.0000000    4.71429  78.6%  27.5    1s
*  481   188              14      21.0000000    9.12500  56.5%  26.3    1s
* 1568   108              34      20.0000000   16.52273  17.4%  23.8    3s

Explored 1775 nodes (40460 simplex iterations) in 3.35 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%