Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:24:59 2012

Optimize a model with 235 rows, 684 columns and 684 nonzeros
Model has 468 quadratic constraints
Presolve removed 0 rows and 24 columns
Presolve time: 2.73s
Presolved: 235 rows, 660 columns, 660 nonzeros
Variable types: 468 continuous, 192 integer (191 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                     114.0000000          -     -      -    2s
     0     0    0.00000    0   34  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0  139  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0  139  114.00000    0.00000   100%     -    2s
     0     2    0.00000    0  139  114.00000    0.00000   100%     -    2s
H   16    16                      60.0000000    1.59091  97.3%  70.1    2s
H   45    45                      23.0000000    1.59091  93.1%  34.4    3s
*  100    76              36      21.0000000    1.59091  92.4%  26.0    3s
*  145    94              38      20.0000000    1.59425  92.0%  24.5    3s
H  189   119                      19.0000000    3.36642  82.3%  22.9    3s
*  236    72              20      15.0000000    3.68217  75.5%  23.9    3s
*  895   118              13      14.0000000    9.96809  28.8%  21.2    3s
* 1163    67              11      13.0000000   11.39394  12.4%  20.0    3s

Cutting planes:

Explored 1254 nodes (26454 simplex iterations) in 4.00 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%