Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:03 2012

Optimize a model with 172 rows, 79 columns and 344 nonzeros
Presolve removed 59 rows and 17 columns
Presolve time: 0.00s
Presolved: 113 rows, 62 columns, 234 nonzeros
Variable types: 0 continuous, 62 integer (62 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 3.750000e+01, 84 iterations, 0.00 seconds

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

     0     0   37.50000    0   57   33.00000   37.50000  13.6%     -    0s
     0     0   35.85714    0   61   33.00000   35.85714  8.66%     -    0s
H    0     0                      34.0000000   35.85714  5.46%     -    0s
     0     0   35.50000    0   61   34.00000   35.50000  4.41%     -    0s
     0     0   35.00000    0   44   34.00000   35.00000  2.94%     -    0s
     0     0   35.00000    0   60   34.00000   35.00000  2.94%     -    0s
     0     0   35.00000    0   50   34.00000   35.00000  2.94%     -    0s
     0     2   35.00000    0   50   34.00000   35.00000  2.94%     -    0s

Explored 5 nodes (309 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%