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

Optimize a model with 256 rows, 95 columns and 512 nonzeros
Presolve removed 32 rows and 0 columns
Presolve time: 0.00s
Presolved: 224 rows, 95 columns, 470 nonzeros
Variable types: 0 continuous, 95 integer (95 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 4.300000e+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   43.00000    0   72   35.00000   43.00000  22.9%     -    0s
H    0     0                      36.0000000   43.00000  19.4%     -    0s
     0     0   42.00000    0   93   36.00000   42.00000  16.7%     -    0s
H    0     0                      37.0000000   42.00000  13.5%     -    0s
H    0     0                      38.0000000   42.00000  10.5%     -    0s
     0     0   41.05882    0   95   38.00000   41.05882  8.05%     -    0s
     0     0   40.50000    0   91   38.00000   40.50000  6.58%     -    0s
     0     0   40.20000    0   93   38.00000   40.20000  5.79%     -    0s
     0     0   39.97600    0   90   38.00000   39.97600  5.20%     -    0s
     0     0   39.89744    0   89   38.00000   39.89744  4.99%     -    0s
     0     0   39.77273    0   94   38.00000   39.77273  4.67%     -    0s
     0     0   39.72857    0   93   38.00000   39.72857  4.55%     -    0s
     0     0   39.61290    0   94   38.00000   39.61290  4.24%     -    0s
     0     0   39.57143    0   94   38.00000   39.57143  4.14%     -    0s
     0     0   39.57143    0   89   38.00000   39.57143  4.14%     -    0s
     0     2   39.57143    0   88   38.00000   39.57143  4.14%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 34

Explored 15 nodes (935 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%