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

Optimize a model with 270 rows, 105 columns and 540 nonzeros
Presolve removed 58 rows and 9 columns
Presolve time: 0.00s
Presolved: 212 rows, 96 columns, 440 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 4.900000e+01, 118 iterations, 0.00 seconds

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

     0     0   49.00000    0   84   39.00000   49.00000  25.6%     -    0s
H    0     0                      43.0000000   49.00000  14.0%     -    0s
     0     0   48.00000    0   79   43.00000   48.00000  11.6%     -    0s
     0     0   47.42466    0   95   43.00000   47.42466  10.3%     -    0s
     0     0   46.88889    0   95   43.00000   46.88889  9.04%     -    0s
     0     0   46.37931    0   96   43.00000   46.37931  7.86%     -    0s
H    0     0                      44.0000000   46.37931  5.41%     -    0s
     0     0   46.00000    0   92   44.00000   46.00000  4.55%     -    0s
     0     0   46.00000    0   94   44.00000   46.00000  4.55%     -    0s
     0     0   45.80000    0   93   44.00000   45.80000  4.09%     -    0s
     0     0   45.71429    0   94   44.00000   45.71429  3.90%     -    0s
     0     0   45.68182    0   95   44.00000   45.68182  3.82%     -    0s
     0     0   45.68182    0   95   44.00000   45.68182  3.82%     -    0s
     0     2   45.68182    0   95   44.00000   45.68182  3.82%     -    0s

Cutting planes:
  Zero half: 37

Explored 29 nodes (1080 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%