Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:08 2012

Optimize a model with 99 rows, 264 columns and 264 nonzeros
Model has 196 quadratic constraints
Presolve removed 0 rows and 3 columns
Presolve time: 1.14s
Presolved: 99 rows, 261 columns, 261 nonzeros
Variable types: 196 continuous, 65 integer (64 binary)

Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds

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

H    0     0                      50.0000000          -     -      -    1s
     0     0    0.00000    0    2   50.00000    0.00000   100%     -    1s
     0     0    0.00000    0   56   50.00000    0.00000   100%     -    1s
     0     0    0.00000    0   51   50.00000    0.00000   100%     -    1s
     0     2    0.00000    0   50   50.00000    0.00000   100%     -    1s
H   38    38                      19.0000000    2.84314  85.0%  19.0    1s
*   43    37              25      18.0000000    2.84314  84.2%  18.2    1s
*   65    53              16      17.0000000    3.00000  82.4%  17.5    1s
*   67    52              17      16.0000000    3.00000  81.2%  17.3    1s
*  149    83              26      15.0000000    4.00000  73.3%  16.2    1s
*  386   100              14      14.0000000    7.00000  50.0%  20.7    1s
*  399    73               8      12.0000000    7.05286  41.2%  20.8    1s

Cutting planes:

Explored 552 nodes (11637 simplex iterations) in 1.40 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%