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

Optimize a model with 247 rows, 101 columns and 494 nonzeros
Presolve removed 41 rows and 6 columns
Presolve time: 0.00s
Presolved: 206 rows, 95 columns, 426 nonzeros
Variable types: 0 continuous, 95 integer (95 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.600000e+01, 119 iterations, 0.00 seconds

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

     0     0   46.00000    0   80   39.00000   46.00000  17.9%     -    0s
     0     0   45.00000    0   78   39.00000   45.00000  15.4%     -    0s
     0     0   44.50000    0   77   39.00000   44.50000  14.1%     -    0s
H    0     0                      41.0000000   44.50000  8.54%     -    0s
     0     0   44.00000    0   90   41.00000   44.00000  7.32%     -    0s
     0     0   43.85714    0   88   41.00000   43.85714  6.97%     -    0s
H    0     0                      42.0000000   43.85714  4.42%     -    0s
     0     0   43.50000    0   78   42.00000   43.50000  3.57%     -    0s
     0     0   43.50000    0   85   42.00000   43.50000  3.57%     -    0s
     0     0   43.50000    0   81   42.00000   43.50000  3.57%     -    0s
     0     2   43.50000    0   81   42.00000   43.50000  3.57%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 27

Explored 21 nodes (783 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%