Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:13 2012

Optimize a model with 322 rows, 107 columns and 644 nonzeros
Presolve removed 75 rows and 10 columns
Presolve time: 0.00s
Presolved: 247 rows, 97 columns, 520 nonzeros
Variable types: 0 continuous, 97 integer (97 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 4.700000e+01, 132 iterations, 0.00 seconds

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

     0     0   47.00000    0   72   42.00000   47.00000  11.9%     -    0s
     0     0   46.00000    0   93   42.00000   46.00000  9.52%     -    0s
     0     0   45.55556    0   95   42.00000   45.55556  8.47%     -    0s
     0     0   45.22727    0   96   42.00000   45.22727  7.68%     -    0s
     0     0   45.12658    0   96   42.00000   45.12658  7.44%     -    0s
     0     0   44.76000    0   95   42.00000   44.76000  6.57%     -    0s
     0     0   44.57143    0   93   42.00000   44.57143  6.12%     -    0s
     0     0   44.50000    0   96   42.00000   44.50000  5.95%     -    0s
     0     0   44.34013    0   96   42.00000   44.34013  5.57%     -    0s
     0     0   44.26761    0   88   42.00000   44.26761  5.40%     -    0s
     0     0   44.17143    0   95   42.00000   44.17143  5.17%     -    0s
     0     0   44.08333    0   97   42.00000   44.08333  4.96%     -    0s
     0     0   43.96774    0   96   42.00000   43.96774  4.69%     -    0s
     0     0   43.94406    0   97   42.00000   43.94406  4.63%     -    0s
     0     0   43.94406    0   96   42.00000   43.94406  4.63%     -    0s
H    0     0                      43.0000000   43.94406  2.20%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 37

Explored 0 nodes (641 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%