Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:39 2012

Optimize a model with 247 rows, 145 columns and 760 nonzeros
Presolve time: 0.00s
Presolved: 247 rows, 145 columns, 760 nonzeros
Variable types: 0 continuous, 145 integer (145 binary)
Found heuristic solution: objective 64.0000000

Root relaxation: objective 0.000000e+00, 47 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   22   64.00000    0.00000   100%     -    0s
H    0     0                      62.0000000    0.00000   100%     -    0s
H    0     0                      60.0000000    0.00000   100%     -    0s
     0     0    1.14286    0   24   60.00000    1.14286  98.1%     -    0s
H    0     0                      54.0000000    1.14286  97.9%     -    0s
     0     0    1.21429    0   24   54.00000    1.21429  97.8%     -    0s
     0     0    1.21429    0   24   54.00000    1.21429  97.8%     -    0s
     0     0    1.21429    0   24   54.00000    1.21429  97.8%     -    0s
     0     0    1.21429    0   24   54.00000    1.21429  97.8%     -    0s
     0     2    1.21429    0   24   54.00000    1.21429  97.8%     -    0s
*   24    21              13      53.0000000    7.63265  85.6%  30.3    0s
*  263   100              13      52.0000000   21.16667  59.3%  20.1    0s
*  329   125              14      51.0000000   25.61538  49.8%  19.6    0s
*  368   128              14      49.0000000   26.71429  45.5%  19.4    0s
*  839   189              28      47.0000000   31.27273  33.5%  18.7    0s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 2411 nodes (40951 simplex iterations) in 1.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.700000000000e+01, best bound 4.700000000000e+01, gap 0.0%