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

Optimize a model with 282 rows, 101 columns and 564 nonzeros
Presolve removed 86 rows and 14 columns
Presolve time: 0.00s
Presolved: 196 rows, 87 columns, 415 nonzeros
Variable types: 0 continuous, 87 integer (87 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.550000e+01, 134 iterations, 0.00 seconds

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

     0     0   45.50000    0   82   39.00000   45.50000  16.7%     -    0s
H    0     0                      42.0000000   45.50000  8.33%     -    0s
     0     0   44.50000    0   65   42.00000   44.50000  5.95%     -    0s
     0     0   44.16667    0   78   42.00000   44.16667  5.16%     -    0s
     0     0   44.16667    0   82   42.00000   44.16667  5.16%     -    0s
H    0     0                      43.0000000   44.16667  2.71%     -    0s
     0     0     cutoff    0        43.00000   43.99996  2.33%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 48

Explored 0 nodes (345 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%