Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:26 2012

Optimize a model with 112 rows, 243 columns and 243 nonzeros
Model has 222 quadratic constraints
Presolve time: 1.29s
Presolved: 112 rows, 243 columns, 243 nonzeros
Variable types: 222 continuous, 21 integer (21 binary)

Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds

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

H    0     0                      55.0000000          -     -      -    1s
     0     0    0.00000    0   20   55.00000    0.00000   100%     -    1s
     0     0    0.47143    0   21   55.00000    0.47143  99.1%     -    1s
     0     2    0.50000    0   21   55.00000    0.50000  99.1%     -    1s
*   25    23              16      51.0000000    6.23333  87.8%  28.7    1s
*   33    24              18      50.0000000    6.23333  87.5%  24.1    1s
*   71    47              12      47.0000000    9.50000  79.8%  25.7    1s
*   72    46              11      45.0000000    9.50000  78.9%  25.4    1s

Explored 3786 nodes (61782 simplex iterations) in 3.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%