Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:20 2012

Optimize a model with 173 rows, 105 columns and 535 nonzeros
Presolve time: 0.00s
Presolved: 173 rows, 105 columns, 535 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)
Found heuristic solution: objective 36.0000000

Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds

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

     0     0    0.00000    0   19   36.00000    0.00000   100%     -    0s
     0     0    0.78947    0   21   36.00000    0.78947  97.8%     -    0s
     0     0    0.78947    0   21   36.00000    0.78947  97.8%     -    0s
     0     0    0.78947    0   21   36.00000    0.78947  97.8%     -    0s
     0     0    0.78947    0   21   36.00000    0.78947  97.8%     -    0s
     0     2    0.83333    0   21   36.00000    0.83333  97.7%     -    0s
*  134    58              11      35.0000000   16.00000  54.3%  20.5    0s
*  158    56              10      34.0000000   16.00000  52.9%  18.9    0s
*  169    52              12      33.0000000   16.00000  51.5%  18.1    0s
H  616    18                      32.0000000   27.20000  15.0%  15.3    0s

Cutting planes:
  Gomory: 1
  Zero half: 12

Explored 646 nodes (9848 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%