Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:00:12 2012

Optimize a model with 270 rows, 762 columns and 762 nonzeros
Model has 538 quadratic constraints
Presolve removed 0 rows and 11 columns
Presolve time: 3.14s
Presolved: 270 rows, 751 columns, 751 nonzeros
Variable types: 538 continuous, 213 integer (212 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                     142.0000000          -     -      -    3s
     0     0    0.00000    0   63  142.00000    0.00000   100%     -    3s
     0     0    0.00000    0   65  142.00000    0.00000   100%     -    3s
     0     0    0.00000    0  149  142.00000    0.00000   100%     -    3s
     0     2    0.00000    0  149  142.00000    0.00000   100%     -    3s
H   42    42                      20.0000000    4.20207  79.0%  42.9    3s
H  223    78                      17.0000000    4.94444  70.9%  21.0    3s
*  223    62              11      16.0000000    4.94444  69.1%  21.0    3s
*  746    74               9      15.0000000   10.21064  31.9%  26.8    4s

Cutting planes:

Explored 1012 nodes (29026 simplex iterations) in 4.57 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%