Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:52:48 2012

Optimize a model with 658 rows, 117 columns and 1316 nonzeros
Presolve removed 230 rows and 0 columns
Presolve time: 0.00s
Presolved: 428 rows, 117 columns, 1044 nonzeros
Variable types: 0 continuous, 117 integer (117 binary)
Found heuristic solution: objective 32.0000000

Root relaxation: objective 4.169231e+01, 265 iterations, 0.01 seconds

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

     0     0   41.69231    0  112   32.00000   41.69231  30.3%     -    0s
     0     0   41.00000    0  114   32.00000   41.00000  28.1%     -    0s
     0     0   41.00000    0  114   32.00000   41.00000  28.1%     -    0s
     0     0   41.00000    0  104   32.00000   41.00000  28.1%     -    0s
H    0     0                      34.0000000   41.00000  20.6%     -    0s
     0     2   41.00000    0   97   34.00000   41.00000  20.6%     -    0s
*  170    38              18      35.0000000   39.24000  12.1%  29.5    0s

Cutting planes:
  Gomory: 1
  Clique: 1
  Zero half: 19

Explored 427 nodes (11976 simplex iterations) in 0.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%