Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:31 2012

Optimize a model with 88 rows, 214 columns and 214 nonzeros
Model has 174 quadratic constraints
Presolve time: 1.01s
Presolved: 88 rows, 214 columns, 214 nonzeros
Variable types: 174 continuous, 40 integer (40 binary)

Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds

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

H    0     0                      50.0000000          -     -      -    1s
     0     0    0.00000    0   19   50.00000    0.00000   100%     -    1s
     0     0    0.00000    0   36   50.00000    0.00000   100%     -    1s
     0     0    0.00000    0   28   50.00000    0.00000   100%     -    1s
     0     2    0.00000    0   28   50.00000    0.00000   100%     -    1s
H   46    46                      23.0000000    4.32353  81.2%  18.6    1s
*   78    57              14      22.0000000    4.44444  79.8%  19.3    1s
*  151    97              12      21.0000000    5.88235  72.0%  20.3    1s
*  183    91               9      20.0000000    6.16667  69.2%  20.9    1s
*  371   103              14      19.0000000    9.23077  51.4%  21.2    1s

Cutting planes:
  Gomory: 1

Explored 916 nodes (18430 simplex iterations) in 1.42 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%