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

Optimize a model with 243 rows, 102 columns and 486 nonzeros
Presolve removed 81 rows and 17 columns
Presolve time: 0.00s
Presolved: 162 rows, 85 columns, 340 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.700000e+01, 101 iterations, 0.00 seconds

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

     0     0   47.00000    0   66   41.00000   47.00000  14.6%     -    0s
H    0     0                      42.0000000   47.00000  11.9%     -    0s
     0     0   45.84615    0   83   42.00000   45.84615  9.16%     -    0s
H    0     0                      43.0000000   45.84615  6.62%     -    0s
     0     0   45.25000    0   84   43.00000   45.25000  5.23%     -    0s
     0     0   45.14103    0   84   43.00000   45.14103  4.98%     -    0s
     0     0   45.00000    0   80   43.00000   45.00000  4.65%     -    0s
     0     0   45.00000    0   83   43.00000   45.00000  4.65%     -    0s
     0     0   45.00000    0   83   43.00000   45.00000  4.65%     -    0s
     0     2   45.00000    0   83   43.00000   45.00000  4.65%     -    0s
*   13     3               3      44.0000000   44.00000   0.0%  17.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 29

Explored 14 nodes (571 simplex iterations) in 0.03 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%