Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:18 2012

Optimize a model with 364 rows, 115 columns and 728 nonzeros
Presolve removed 68 rows and 2 columns
Presolve time: 0.00s
Presolved: 296 rows, 113 columns, 632 nonzeros
Variable types: 0 continuous, 113 integer (113 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 4.900000e+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   49.00000    0   92   42.00000   49.00000  16.7%     -    0s
     0     0   48.33333    0  109   42.00000   48.33333  15.1%     -    0s
H    0     0                      43.0000000   48.33333  12.4%     -    0s
     0     0   47.77419    0  110   43.00000   47.77419  11.1%     -    0s
H    0     0                      45.0000000   47.77419  6.16%     -    0s
     0     0   47.00000    0  104   45.00000   47.00000  4.44%     -    0s
     0     0   46.80000    0  104   45.00000   46.80000  4.00%     -    0s
     0     0   46.48958    0  107   45.00000   46.48958  3.31%     -    0s
     0     0   46.26316    0  106   45.00000   46.26316  2.81%     -    0s
     0     0   46.09524    0  106   45.00000   46.09524  2.43%     -    0s
     0     0   46.05882    0  109   45.00000   46.05882  2.35%     -    0s
     0     0     cutoff    0        45.00000   45.99995  2.22%     -    0s

Cutting planes:
  Zero half: 68

Explored 0 nodes (728 simplex iterations) in 0.04 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%