Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:16 2012

Optimize a model with 346 rows, 112 columns and 692 nonzeros
Presolve removed 82 rows and 4 columns
Presolve time: 0.00s
Presolved: 264 rows, 108 columns, 571 nonzeros
Variable types: 0 continuous, 108 integer (108 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.768182e+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   47.68182    0  102   41.00000   47.68182  16.3%     -    0s
H    0     0                      42.0000000   47.68182  13.5%     -    0s
     0     0   47.12834    0  104   42.00000   47.12834  12.2%     -    0s
H    0     0                      43.0000000   47.12834  9.60%     -    0s
     0     0   46.60000    0  101   43.00000   46.60000  8.37%     -    0s
     0     0   46.33333    0  104   43.00000   46.33333  7.75%     -    0s
     0     0   46.13851    0  105   43.00000   46.13851  7.30%     -    0s
     0     0   46.06842    0  106   43.00000   46.06842  7.14%     -    0s
     0     0   45.83871    0   99   43.00000   45.83871  6.60%     -    0s
     0     0   45.69231    0  100   43.00000   45.69231  6.26%     -    0s
     0     0   45.65341    0  103   43.00000   45.65341  6.17%     -    0s
H    0     0                      45.0000000   45.65341  1.45%     -    0s

Cutting planes:
  Zero half: 31

Explored 0 nodes (566 simplex iterations) in 0.05 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%