Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:49:12 2012

Optimize a model with 445 rows, 287 columns and 1397 nonzeros
Presolve time: 0.00s
Presolved: 445 rows, 287 columns, 1397 nonzeros
Variable types: 0 continuous, 287 integer (287 binary)
Found heuristic solution: objective 98.0000000

Root relaxation: objective 0.000000e+00, 94 iterations, 0.00 seconds

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

     0     0    0.00000    0   65   98.00000    0.00000   100%     -    0s
H    0     0                      88.0000000    0.00000   100%     -    0s
H    0     0                      86.0000000    0.00000   100%     -    0s
     0     0    0.80989    0   67   86.00000    0.80989  99.1%     -    0s
     0     0    0.83140    0   67   86.00000    0.83140  99.0%     -    0s
     0     0    0.84322    0   68   86.00000    0.84322  99.0%     -    0s
     0     0    0.86259    0   68   86.00000    0.86259  99.0%     -    0s
     0     0    0.86923    0   69   86.00000    0.86923  99.0%     -    0s
     0     0    0.87185    0   73   86.00000    0.87185  99.0%     -    0s
     0     0    0.88632    0   75   86.00000    0.88632  99.0%     -    0s
     0     0    0.90442    0   80   86.00000    0.90442  98.9%     -    0s
     0     0    0.91613    0   76   86.00000    0.91613  98.9%     -    0s
     0     0    0.92661    0   70   86.00000    0.92661  98.9%     -    0s
     0     0    0.92710    0   82   86.00000    0.92710  98.9%     -    0s
     0     0    0.92710    0   82   86.00000    0.92710  98.9%     -    0s
     0     2    1.01928    0   82   86.00000    1.01928  98.8%     -    0s
*   54    52              31      76.0000000    4.71429  93.8%  25.1    0s
*  105    85              30      70.0000000    4.82609  93.1%  22.8    0s
*  237   183              25      65.0000000    7.57778  88.3%  22.9    0s
* 1005   572              39      64.0000000   17.22242  73.1%  24.8    1s
* 1564   532              30      55.0000000   24.76744  55.0%  23.9    2s
H 2612   685                      54.0000000   30.00000  44.4%  22.5    3s
* 2990   724              28      52.0000000   31.22222  40.0%  22.1    3s
  4266   870   48.54717   21  139   52.00000   34.16667  34.3%  21.4    5s
  9872   745   50.80851   24  142   52.00000   41.52830  20.1%  19.8   10s

Cutting planes:
  Gomory: 1
  Mod-K: 5

Explored 13024 nodes (248090 simplex iterations) in 12.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.200000000000e+01, best bound 5.200000000000e+01, gap 0.0%