Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:08:44 2012

Optimize a model with 237 rows, 677 columns and 677 nonzeros
Model has 472 quadratic constraints
Presolve removed 0 rows and 15 columns
Presolve time: 2.75s
Presolved: 237 rows, 662 columns, 662 nonzeros
Variable types: 472 continuous, 190 integer (189 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     133.0000000          -     -      -    2s
     0     0    0.00000    0   70  133.00000    0.00000   100%     -    2s
     0     0    0.00000    0  153  133.00000    0.00000   100%     -    2s
     0     0    0.00000    0  152  133.00000    0.00000   100%     -    2s
     0     2    0.00000    0  150  133.00000    0.00000   100%     -    2s
*   30    30              17      16.0000000    2.70968  83.1%  44.7    3s
*  327   126              12      15.0000000    7.35282  51.0%  26.0    3s
*  616   101              12      14.0000000    8.96565  36.0%  24.1    3s
*  806    52              12      13.0000000   10.61364  18.4%  25.1    3s

Cutting planes:

Explored 889 nodes (23384 simplex iterations) in 3.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%