Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:06 2012

Optimize a model with 191 rows, 92 columns and 382 nonzeros
Presolve removed 44 rows and 10 columns
Presolve time: 0.00s
Presolved: 147 rows, 82 columns, 306 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.300000e+01, 114 iterations, 0.00 seconds

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

     0     0   43.00000    0   57   39.00000   43.00000  10.3%     -    0s
H    0     0                      42.0000000   43.00000  2.38%     -    0s
     0     0   43.00000    0   75   42.00000   43.00000  2.38%     -    0s
     0     0 infeasible    0        42.00000   42.99996  2.38%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 15

Explored 0 nodes (170 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%