Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:04:02 2012

Optimize a model with 107 rows, 261 columns and 261 nonzeros
Model has 212 quadratic constraints
Presolve time: 1.23s
Presolved: 107 rows, 261 columns, 261 nonzeros
Variable types: 212 continuous, 49 integer (49 binary)

Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds

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

H    0     0                      48.0000000          -     -      -    1s
     0     0    0.00000    0   24   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   45   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   45   48.00000    0.00000   100%     -    1s
     0     2    0.00000    0   45   48.00000    0.00000   100%     -    1s
*   39    39              22      25.0000000    3.12500  87.5%  25.7    1s
H   59    43                      21.0000000    4.80000  77.1%  23.4    1s
H  112    73                      20.0000000    5.50000  72.5%  24.9    1s
*  157    84               9      18.0000000    5.53846  69.2%  26.3    1s

Cutting planes:

Explored 665 nodes (15266 simplex iterations) in 1.60 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%