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

Optimize a model with 287 rows, 106 columns and 574 nonzeros
Presolve removed 57 rows and 4 columns
Presolve time: 0.00s
Presolved: 230 rows, 102 columns, 485 nonzeros
Variable types: 0 continuous, 102 integer (102 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.633333e+01, 138 iterations, 0.00 seconds

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

     0     0   46.33333    0   86   39.00000   46.33333  18.8%     -    0s
H    0     0                      41.0000000   46.33333  13.0%     -    0s
     0     0   46.00000    0   74   41.00000   46.00000  12.2%     -    0s
     0     0   45.75000    0   87   41.00000   45.75000  11.6%     -    0s
     0     0   45.50000    0   96   41.00000   45.50000  11.0%     -    0s
H    0     0                      42.0000000   45.50000  8.33%     -    0s
     0     0   45.17647    0   97   42.00000   45.17647  7.56%     -    0s
H    0     0                      44.0000000   45.17647  2.67%     -    0s
     0     0   45.08333    0   98   44.00000   45.08333  2.46%     -    0s
     0     0     cutoff    0        44.00000   44.99995  2.27%     -    0s

Cutting planes:
  Zero half: 27

Explored 0 nodes (390 simplex iterations) in 0.02 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%