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

Optimize a model with 353 rows, 117 columns and 706 nonzeros
Presolve removed 58 rows and 1 columns
Presolve time: 0.00s
Presolved: 295 rows, 116 columns, 628 nonzeros
Variable types: 0 continuous, 116 integer (116 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 5.050000e+01, 176 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   95   41.00000   50.50000  23.2%     -    0s
     0     0   49.50000    0  113   41.00000   49.50000  20.7%     -    0s
H    0     0                      42.0000000   49.50000  17.9%     -    0s
     0     0   48.80000    0  108   42.00000   48.80000  16.2%     -    0s
H    0     0                      43.0000000   48.80000  13.5%     -    0s
     0     0   48.66667    0  112   43.00000   48.66667  13.2%     -    0s
H    0     0                      44.0000000   48.66667  10.6%     -    0s
     0     0   48.41176    0  111   44.00000   48.41176  10.0%     -    0s
     0     0   48.27586    0  114   44.00000   48.27586  9.72%     -    0s
     0     0   48.14607    0  113   44.00000   48.14607  9.42%     -    0s
     0     0   48.05000    0  111   44.00000   48.05000  9.20%     -    0s
     0     0   48.02395    0  114   44.00000   48.02395  9.15%     -    0s
     0     0   48.02395    0  113   44.00000   48.02395  9.15%     -    0s
     0     2   48.02395    0  113   44.00000   48.02395  9.15%     -    0s
*  140    16               5      45.0000000   46.54545  3.43%  19.2    0s

Cutting planes:
  Zero half: 68

Explored 158 nodes (3571 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%