Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:31 2012

Optimize a model with 116 rows, 289 columns and 289 nonzeros
Model has 230 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.35s
Presolved: 116 rows, 288 columns, 288 nonzeros
Variable types: 230 continuous, 58 integer (57 binary)

Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds

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

H    0     0                      59.0000000          -     -      -    1s
     0     0    0.00000    0    6   59.00000    0.00000   100%     -    1s
     0     0    0.00000    0    6   59.00000    0.00000   100%     -    1s
     0     0    0.00000    0   50   59.00000    0.00000   100%     -    1s
     0     2    0.00000    0   50   59.00000    0.00000   100%     -    1s
*   32    31              18      24.0000000    3.50000  85.4%  32.9    1s
*   37    29              19      23.0000000    3.50000  84.8%  29.2    1s
*   84    56              13      22.0000000    5.73099  74.0%  25.0    1s
*   94    55              14      21.0000000    5.73099  72.7%  23.8    1s
*  116    57              10      20.0000000    7.56098  62.2%  24.5    1s
H  274    64                      18.0000000   10.39316  42.3%  23.7    1s

Cutting planes:

Explored 498 nodes (11850 simplex iterations) in 1.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000003e+01, best bound 1.800000000003e+01, gap 0.0%