Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:36 2012

Optimize a model with 119 rows, 305 columns and 305 nonzeros
Model has 236 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.37s
Presolved: 119 rows, 304 columns, 304 nonzeros
Variable types: 236 continuous, 68 integer (67 binary)

Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds

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

H    0     0                      62.0000000          -     -      -    1s
     0     0    0.00000    0   31   62.00000    0.00000   100%     -    1s
     0     0    0.00000    0   64   62.00000    0.00000   100%     -    1s
     0     0    0.00000    0   62   62.00000    0.00000   100%     -    1s
     0     2    0.00000    0   62   62.00000    0.00000   100%     -    1s
*   29    29              18      21.0000000    4.43534  78.9%  34.1    1s
*   33    29              19      20.0000000    4.43534  77.8%  31.2    1s
*  286    72               9      19.0000000   11.00000  42.1%  27.1    1s
*  294    57              14      18.0000000   11.00000  38.9%  26.6    1s

Cutting planes:

Explored 489 nodes (13093 simplex iterations) in 1.71 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%