Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:01:08 2012

Optimize a model with 298 rows, 827 columns and 827 nonzeros
Model has 594 quadratic constraints
Presolve removed 0 rows and 14 columns
Presolve time: 3.46s
Presolved: 298 rows, 813 columns, 813 nonzeros
Variable types: 594 continuous, 219 integer (218 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                     146.0000000          -     -      -    3s
     0     0    0.00000    0  115  146.00000    0.00000   100%     -    3s
     0     0    0.00000    0   79  146.00000    0.00000   100%     -    3s
     0     0    0.00000    0    2  146.00000    0.00000   100%     -    3s
     0     2    0.00000    0  197  146.00000    0.00000   100%     -    3s
H   44    44                      27.0000000    3.45059  87.2%  43.9    3s
H   88    65                      25.0000000    3.60278  85.6%  36.8    3s
*   92    60              20      24.0000000    3.60278  85.0%  36.1    3s
*  128    80              26      23.0000000    6.74317  70.7%  35.8    3s
*  197   112              41      21.0000000    6.82828  67.5%  34.7    3s
H  245    91                      20.0000000    9.25437  53.7%  35.4    3s
*  258    64               8      19.0000000    9.26299  51.2%  35.3    3s

Cutting planes:

Explored 629 nodes (23410 simplex iterations) in 4.53 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%