Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:46:51 2012

Optimize a model with 151 rows, 381 columns and 381 nonzeros
Model has 300 quadratic constraints
Presolve time: 1.75s
Presolved: 151 rows, 381 columns, 381 nonzeros
Variable types: 300 continuous, 81 integer (81 binary)

Root relaxation: objective 0.000000e+00, 40 iterations, 0.00 seconds

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

H    0     0                      81.0000000          -     -      -    1s
     0     0    0.00000    0    7   81.00000    0.00000   100%     -    1s
     0     0    0.00000    0   13   81.00000    0.00000   100%     -    1s
     0     0    0.00000    0    7   81.00000    0.00000   100%     -    1s
     0     2    0.00000    0   68   81.00000    0.00000   100%     -    1s
H   40    40                      29.0000000    3.42593  88.2%  37.1    1s
*   43    41              28      28.0000000    3.42593  87.8%  35.5    1s
*   76    68              20      25.0000000    3.45455  86.2%  32.1    1s
*  500   214              19      24.0000000   10.01887  58.3%  31.2    2s
*  501   199              19      23.0000000   10.01887  56.4%  31.1    2s
* 1867   232              35      22.0000000   16.14286  26.6%  26.3    4s
H 1871   185                      21.0000000   16.14286  23.1%  26.3    4s

Explored 2208 nodes (54689 simplex iterations) in 4.53 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%