Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:04 2012

Optimize a model with 189 rows, 84 columns and 378 nonzeros
Presolve removed 63 rows and 14 columns
Presolve time: 0.00s
Presolved: 126 rows, 70 columns, 268 nonzeros
Variable types: 0 continuous, 70 integer (70 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 3.900000e+01, 102 iterations, 0.00 seconds

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

     0     0   39.00000    0   58   33.00000   39.00000  18.2%     -    0s
H    0     0                      36.0000000   39.00000  8.33%     -    0s
     0     0   38.53125    0   70   36.00000   38.53125  7.03%     -    0s
     0     0   37.47826    0   67   36.00000   37.47826  4.11%     -    0s
     0     0   37.40000    0   62   36.00000   37.40000  3.89%     -    0s
     0     0   37.20000    0   64   36.00000   37.20000  3.33%     -    0s
*    0     0               0      37.0000000   37.00000   0.0%     -    0s

Cutting planes:
  Zero half: 36

Explored 0 nodes (316 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%