Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:11:03 2012

Optimize a model with 244 rows, 693 columns and 693 nonzeros
Model has 486 quadratic constraints
Presolve removed 0 rows and 18 columns
Presolve time: 2.83s
Presolved: 244 rows, 675 columns, 675 nonzeros
Variable types: 486 continuous, 189 integer (188 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   95  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0  157  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0  137  114.00000    0.00000   100%     -    3s
     0     2    0.00000    0  129  114.00000    0.00000   100%     -    3s
H   39    39                      19.0000000    2.92000  84.6%  36.7    3s
*   82    48              48      18.0000000    2.92000  83.8%  29.7    3s
H  658   234                      16.0000000   10.97345  31.4%  29.3    4s
   710   217   10.97345   12  627   16.00000   10.97345  31.4%  28.5    5s
* 1158   155              29      15.0000000   10.97345  26.8%  34.6    6s

Explored 1243 nodes (45559 simplex iterations) in 6.55 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%