Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:08 2012

Optimize a model with 231 rows, 96 columns and 462 nonzeros
Presolve removed 73 rows and 15 columns
Presolve time: 0.00s
Presolved: 158 rows, 81 columns, 333 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 4.433333e+01, 96 iterations, 0.00 seconds

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

     0     0   44.33333    0   44   40.00000   44.33333  10.8%     -    0s
H    0     0                      43.0000000   44.33333  3.10%     -    0s
     0     0 infeasible    0        43.00000   43.99996  2.33%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 25

Explored 0 nodes (161 simplex iterations) in 0.01 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%