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

Optimize a model with 263 rows, 106 columns and 526 nonzeros
Presolve removed 40 rows and 6 columns
Presolve time: 0.00s
Presolved: 223 rows, 100 columns, 456 nonzeros
Variable types: 0 continuous, 100 integer (100 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.850000e+01, 125 iterations, 0.00 seconds

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

     0     0   48.50000    0   81   39.00000   48.50000  24.4%     -    0s
H    0     0                      40.0000000   48.50000  21.2%     -    0s
     0     0   47.50000    0   81   40.00000   47.50000  18.8%     -    0s
     0     0   47.00000    0   94   40.00000   47.00000  17.5%     -    0s
H    0     0                      42.0000000   47.00000  11.9%     -    0s
     0     0   46.93548    0   95   42.00000   46.93548  11.8%     -    0s
     0     0   46.48276    0   99   42.00000   46.48276  10.7%     -    0s
     0     0   46.25000    0   93   42.00000   46.25000  10.1%     -    0s
     0     0   46.25000    0  100   42.00000   46.25000  10.1%     -    0s
     0     0   46.25000    0   85   42.00000   46.25000  10.1%     -    0s
H    0     0                      43.0000000   46.25000  7.56%     -    0s
H    0     0                      44.0000000   46.25000  5.11%     -    0s
     0     2   46.25000    0   85   44.00000   46.25000  5.11%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 25

Explored 31 nodes (925 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%