Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:06:00 2012

Optimize a model with 222 rows, 644 columns and 644 nonzeros
Model has 442 quadratic constraints
Presolve removed 0 rows and 20 columns
Presolve time: 2.58s
Presolved: 222 rows, 624 columns, 624 nonzeros
Variable types: 442 continuous, 182 integer (181 binary)

Root relaxation: objective 0.000000e+00, 79 iterations, 0.00 seconds

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

H    0     0                     106.0000000          -     -      -    2s
     0     0    0.00000    0    5  106.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2  106.00000    0.00000   100%     -    2s
     0     0    0.00000    0  107  106.00000    0.00000   100%     -    2s
     0     2    0.00000    0  101  106.00000    0.00000   100%     -    2s
H   27    27                      20.0000000    2.56250  87.2%  54.8    2s
H   54    37                      15.0000000    2.65385  82.3%  37.9    2s
*   55    38              22      14.0000000    2.65385  81.0%  37.3    2s
*  255    72               9      12.0000000    5.66019  52.8%  21.7    2s

Cutting planes:

Explored 640 nodes (14382 simplex iterations) in 3.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%