Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:20 2012

Optimize a model with 108 rows, 235 columns and 235 nonzeros
Model has 214 quadratic constraints
Presolve time: 1.25s
Presolved: 108 rows, 235 columns, 235 nonzeros
Variable types: 214 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                      54.0000000          -     -      -    1s
     0     0    0.00000    0   20   54.00000    0.00000   100%     -    1s
     0     0    0.52381    0   21   54.00000    0.52381  99.0%     -    1s
     0     2    0.54321    0   21   54.00000    0.54321  99.0%     -    1s
*   30    30              17      52.0000000    5.50000  89.4%  23.6    1s
*   31    29              18      50.0000000    5.50000  89.0%  22.9    1s
*   34    27              17      49.0000000    5.50000  88.8%  21.2    1s
H   49    38                      46.0000000    5.52778  88.0%  23.2    1s
*   82    56              16      45.0000000    9.11111  79.8%  23.1    1s
*  136    94              15      44.0000000   11.00000  75.0%  26.0    1s
*  214   106              10      43.0000000   14.80000  65.6%  25.6    1s
*  222   104              14      42.0000000   14.80000  64.8%  25.0    1s
*  465   138              11      41.0000000   24.00000  41.5%  23.9    1s
*  813   134              13      40.0000000   29.00000  27.5%  22.0    1s

Cutting planes:
  Gomory: 1

Explored 1312 nodes (27530 simplex iterations) in 1.87 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+01, best bound 4.000000000000e+01, gap 0.0%