Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:10 2012

Optimize a model with 284 rows, 102 columns and 568 nonzeros
Presolve removed 47 rows and 1 columns
Presolve time: 0.00s
Presolved: 237 rows, 101 columns, 500 nonzeros
Variable types: 0 continuous, 101 integer (101 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.400000e+01, 124 iterations, 0.00 seconds

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

     0     0   44.00000    0   82   39.00000   44.00000  12.8%     -    0s
     0     0   43.00000    0   84   39.00000   43.00000  10.3%     -    0s
     0     0   43.00000    0   82   39.00000   43.00000  10.3%     -    0s
     0     0   42.66667    0   91   39.00000   42.66667  9.40%     -    0s
     0     0   42.00000    0   90   39.00000   42.00000  7.69%     -    0s
     0     0   42.00000    0   78   39.00000   42.00000  7.69%     -    0s
     0     0   41.86364    0   97   39.00000   41.86364  7.34%     -    0s
     0     0   41.71429    0   97   39.00000   41.71429  6.96%     -    0s
     0     0   41.49038    0   98   39.00000   41.49038  6.39%     -    0s
     0     0   41.42949    0   98   39.00000   41.42949  6.23%     -    0s
     0     0   41.30000    0   97   39.00000   41.30000  5.90%     -    0s
     0     0   41.28947    0   98   39.00000   41.28947  5.87%     -    0s
     0     0   41.28947    0   97   39.00000   41.28947  5.87%     -    0s
     0     2   41.28947    0   97   39.00000   41.28947  5.87%     -    0s
*    3     3               2      40.0000000   41.28161  3.20%  26.0    0s

Cutting planes:
  Gomory: 1
  Zero half: 35

Explored 7 nodes (733 simplex iterations) in 0.05 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%