Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:09 2012

Optimize a model with 232 rows, 99 columns and 464 nonzeros
Presolve removed 103 rows and 23 columns
Presolve time: 0.00s
Presolved: 129 rows, 76 columns, 272 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 4.600000e+01, 107 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   44   43.00000   46.00000  6.98%     -    0s
     0     0   45.50000    0   51   43.00000   45.50000  5.81%     -    0s
     0     0   45.18182    0   70   43.00000   45.18182  5.07%     -    0s
     0     0   45.00000    0   70   43.00000   45.00000  4.65%     -    0s
H    0     0                      44.0000000   45.00000  2.27%     -    0s
     0     0   45.00000    0   59   44.00000   45.00000  2.27%     -    0s
*    0     0               0      45.0000000   45.00000   0.0%     -    0s

Cutting planes:
  Zero half: 49

Explored 0 nodes (237 simplex iterations) in 0.01 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%