Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:13 2012

Optimize a model with 266 rows, 107 columns and 532 nonzeros
Presolve removed 48 rows and 4 columns
Presolve time: 0.00s
Presolved: 218 rows, 103 columns, 458 nonzeros
Variable types: 0 continuous, 103 integer (103 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 4.830000e+01, 140 iterations, 0.00 seconds

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

     0     0   48.30000    0   93   43.00000   48.30000  12.3%     -    0s
H    0     0                      45.0000000   48.30000  7.33%     -    0s
     0     0   47.51429    0   97   45.00000   47.51429  5.59%     -    0s
     0     0   47.41538    0  101   45.00000   47.41538  5.37%     -    0s
     0     0   46.12500    0   95   45.00000   46.12500  2.50%     -    0s
     0     0   46.00000    0   93   45.00000   46.00000  2.22%     -    0s
     0     0     cutoff    0        45.00000   45.99995  2.22%     -    0s

Cutting planes:
  Zero half: 70

Explored 0 nodes (345 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%