Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:09 2012

Optimize a model with 267 rows, 100 columns and 534 nonzeros
Presolve removed 98 rows and 17 columns
Presolve time: 0.00s
Presolved: 169 rows, 83 columns, 361 nonzeros
Variable types: 0 continuous, 83 integer (83 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.500000e+01, 119 iterations, 0.00 seconds

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

     0     0   45.00000    0   34   41.00000   45.00000  9.76%     -    0s
H    0     0                      42.0000000   45.00000  7.14%     -    0s
H    0     0                      43.0000000   45.00000  4.65%     -    0s
     0     0   44.00000    0   24   43.00000   44.00000  2.33%     -    0s
H    0     0                      44.0000000   44.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 4

Explored 0 nodes (180 simplex iterations) in 0.01 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%