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

Optimize a model with 191 rows, 90 columns and 382 nonzeros
Presolve removed 49 rows and 14 columns
Presolve time: 0.00s
Presolved: 142 rows, 76 columns, 296 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.300000e+01, 95 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   58   41.00000   43.00000  4.88%     -    0s
     0     0   42.50000    0   45   41.00000   42.50000  3.66%     -    0s
     0     0     cutoff    0        41.00000   41.99996  2.44%     -    0s

Cutting planes:
  Clique: 5
  Zero half: 13

Explored 0 nodes (175 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%