Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:15 2012

Optimize a model with 314 rows, 111 columns and 628 nonzeros
Presolve removed 54 rows and 6 columns
Presolve time: 0.00s
Presolved: 260 rows, 105 columns, 540 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 5.050000e+01, 142 iterations, 0.00 seconds

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

     0     0   50.50000    0   93   42.00000   50.50000  20.2%     -    0s
     0     0   48.80000    0  103   42.00000   48.80000  16.2%     -    0s
     0     0   48.50000    0   89   42.00000   48.50000  15.5%     -    0s
     0     0   48.25000    0  103   42.00000   48.25000  14.9%     -    0s
     0     0   48.04762    0  104   42.00000   48.04762  14.4%     -    0s
     0     0   47.25472    0  104   42.00000   47.25472  12.5%     -    0s
     0     0   46.90000    0  104   42.00000   46.90000  11.7%     -    0s
     0     0   46.63812    0  103   42.00000   46.63812  11.0%     -    0s
     0     0   46.38894    0  105   42.00000   46.38894  10.4%     -    0s
     0     0   46.31726    0  104   42.00000   46.31726  10.3%     -    0s
     0     0   46.30028    0  105   42.00000   46.30028  10.2%     -    0s
     0     0   46.30028    0  105   42.00000   46.30028  10.2%     -    0s
     0     2   46.28280    0  105   42.00000   46.28280  10.2%     -    0s
*   14     6               7      43.0000000   46.26902  7.60%  23.6    0s
*  131     2               8      44.0000000   44.82353  1.87%  23.1    0s

Cutting planes:
  Gomory: 1
  Zero half: 98

Explored 132 nodes (3720 simplex iterations) in 0.15 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%