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

Optimize a model with 333 rows, 116 columns and 666 nonzeros
Presolve removed 64 rows and 5 columns
Presolve time: 0.00s
Presolved: 269 rows, 111 columns, 564 nonzeros
Variable types: 0 continuous, 111 integer (111 binary)
Found heuristic solution: objective 44.0000000

Root relaxation: objective 5.100000e+01, 146 iterations, 0.00 seconds

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

     0     0   51.00000    0   84   44.00000   51.00000  15.9%     -    0s
     0     0   50.00000    0   93   44.00000   50.00000  13.6%     -    0s
     0     0   49.62500    0  109   44.00000   49.62500  12.8%     -    0s
H    0     0                      45.0000000   49.62500  10.3%     -    0s
     0     0   48.94972    0  107   45.00000   48.94972  8.78%     -    0s
     0     0   48.76923    0  108   45.00000   48.76923  8.38%     -    0s
     0     0   48.47368    0  109   45.00000   48.47368  7.72%     -    0s
     0     0   48.33333    0  104   45.00000   48.33333  7.41%     -    0s
     0     0   48.04762    0  107   45.00000   48.04762  6.77%     -    0s
     0     0   48.03922    0  108   45.00000   48.03922  6.75%     -    0s
     0     0   48.03922    0  105   45.00000   48.03922  6.75%     -    0s
H    0     0                      46.0000000   48.03922  4.43%     -    0s
     0     2   48.02632    0  105   46.00000   48.02632  4.41%     -    0s
*    2     2               2      47.0000000   48.00000  2.13%  24.0    0s

Cutting planes:
  Gomory: 1
  Zero half: 25

Explored 5 nodes (765 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.700000000000e+01, best bound 4.700000000000e+01, gap 0.0%