Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:22:39 2012

Optimize a model with 253 rows, 718 columns and 718 nonzeros
Model has 504 quadratic constraints
Presolve removed 0 rows and 17 columns
Presolve time: 2.94s
Presolved: 253 rows, 701 columns, 701 nonzeros
Variable types: 504 continuous, 197 integer (196 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                     140.0000000          -     -      -    2s
     0     0    0.00000    0  142  140.00000    0.00000   100%     -    2s
     0     0    0.18273    0  187  140.00000    0.18273   100%     -    3s
     0     2    0.18571    0  187  140.00000    0.18571   100%     -    3s
H   16    16                      27.0000000    1.78723  93.4%  36.3    3s
H   38    38                      20.0000000    1.78723  91.1%  33.0    3s
*  121    63              29      19.0000000    1.81250  90.5%  24.3    3s

Cutting planes:
  Gomory: 1

Explored 1601 nodes (47885 simplex iterations) in 4.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%