Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:24:43 2012

Optimize a model with 123 rows, 316 columns and 316 nonzeros
Model has 244 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.42s
Presolved: 123 rows, 315 columns, 315 nonzeros
Variable types: 244 continuous, 71 integer (70 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                      55.0000000          -     -      -    1s
     0     0    0.00000    0   38   55.00000    0.00000   100%     -    1s
     0     0    0.00000    0   40   55.00000    0.00000   100%     -    1s
     0     0    0.00000    0   34   55.00000    0.00000   100%     -    1s
     0     2    0.00000    0   34   55.00000    0.00000   100%     -    1s
H   24    24                      19.0000000    4.00000  78.9%  35.9    1s
*   30    29              24      18.0000000    4.00000  77.8%  30.1    1s
*  231    90              15      17.0000000    7.44392  56.2%  23.2    1s
*  459    83               8      16.0000000   11.05660  30.9%  23.4    1s

Cutting planes:

Explored 730 nodes (17859 simplex iterations) in 1.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%