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

Optimize a model with 196 rows, 90 columns and 392 nonzeros
Presolve removed 49 rows and 9 columns
Presolve time: 0.00s
Presolved: 147 rows, 81 columns, 310 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 4.010000e+01, 111 iterations, 0.00 seconds

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

     0     0   40.10000    0   69   34.00000   40.10000  17.9%     -    0s
H    0     0                      37.0000000   40.10000  8.38%     -    0s
     0     0   39.66667    0   77   37.00000   39.66667  7.21%     -    0s
     0     0   39.50000    0   67   37.00000   39.50000  6.76%     -    0s
H    0     0                      38.0000000   39.50000  3.95%     -    0s
     0     0   39.33333    0   73   38.00000   39.33333  3.51%     -    0s
H    0     0                      39.0000000   39.33333  0.85%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 9

Explored 0 nodes (188 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%