Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:08:57 2012

Optimize a model with 215 rows, 633 columns and 633 nonzeros
Model has 428 quadratic constraints
Presolve removed 0 rows and 22 columns
Presolve time: 2.50s
Presolved: 215 rows, 611 columns, 611 nonzeros
Variable types: 428 continuous, 183 integer (182 binary)

Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds

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

H    0     0                     103.0000000          -     -      -    2s
     0     0    0.00000    0    3  103.00000    0.00000   100%     -    2s
     0     0    0.00000    0    6  103.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2  103.00000    0.00000   100%     -    2s
     0     2    0.00000    0  144  103.00000    0.00000   100%     -    2s
*   28    28              16      15.0000000    2.51282  83.2%  47.7    2s
H  131    72                      13.0000000    3.37801  74.0%  27.0    2s
*  140    61              21      12.0000000    3.37801  71.8%  28.8    2s

Cutting planes:

Explored 763 nodes (17750 simplex iterations) in 3.25 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%