Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:11 2012

Optimize a model with 305 rows, 104 columns and 610 nonzeros
Presolve removed 52 rows and 1 columns
Presolve time: 0.00s
Presolved: 253 rows, 103 columns, 533 nonzeros
Variable types: 0 continuous, 103 integer (103 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.600000e+01, 145 iterations, 0.00 seconds

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

     0     0   46.00000    0   88   38.00000   46.00000  21.1%     -    0s
     0     0   44.70000    0   97   38.00000   44.70000  17.6%     -    0s
H    0     0                      39.0000000   44.70000  14.6%     -    0s
     0     0   44.16667    0  102   39.00000   44.16667  13.2%     -    0s
     0     0   43.50000    0   93   39.00000   43.50000  11.5%     -    0s
     0     0   43.33333    0  102   39.00000   43.33333  11.1%     -    0s
     0     0   43.20000    0   94   39.00000   43.20000  10.8%     -    0s
H    0     0                      42.0000000   43.20000  2.86%     -    0s
     0     0   43.13514    0   99   42.00000   43.13514  2.70%     -    0s
     0     0     cutoff    0        42.00000   42.99996  2.38%     -    0s

Cutting planes:
  Zero half: 52

Explored 0 nodes (454 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%