Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:07 2012

Optimize a model with 209 rows, 94 columns and 418 nonzeros
Presolve removed 55 rows and 11 columns
Presolve time: 0.00s
Presolved: 154 rows, 83 columns, 320 nonzeros
Variable types: 0 continuous, 83 integer (83 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.500000e+01, 112 iterations, 0.00 seconds

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

     0     0   45.00000    0   78   39.00000   45.00000  15.4%     -    0s
H    0     0                      42.0000000   45.00000  7.14%     -    0s
     0     0   44.00000    0   72   42.00000   44.00000  4.76%     -    0s
     0     0   43.75000    0   76   42.00000   43.75000  4.17%     -    0s
     0     0   43.40000    0   70   42.00000   43.40000  3.33%     -    0s
H    0     0                      43.0000000   43.40000  0.93%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 11

Explored 0 nodes (210 simplex iterations) in 0.01 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%