Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:58:56 2013

Optimize a model with 39773 rows, 3844 columns and 121086 nonzeros
Presolve removed 4207 rows and 1974 columns
Presolve time: 0.29s
Presolved: 35566 rows, 1870 columns, 107759 nonzeros
Variable types: 18 continuous, 1852 integer (1852 binary)
Found heuristic solution: objective 94398.000000

Root relaxation: objective 7.820596e+04, 6707 iterations, 0.59 seconds

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

     0     0 78205.9650    0    9 94398.0000 78205.9650  17.2%     -    1s
H    0     0                    78216.000000 78205.9650  0.01%     -    1s
     0     0 78206.5942    0   23 78216.0000 78206.5942  0.01%     -    1s
     0     0 78206.5942    0    6 78216.0000 78206.5942  0.01%     -    1s
     0     0 78206.5946    0   23 78216.0000 78206.5946  0.01%     -    1s
     0     2 78206.7028    0   22 78216.0000 78206.7028  0.01%     -    1s

Cutting planes:
  Gomory: 9
  Cover: 1
  Implied bound: 1
  MIR: 17
  Zero half: 4

Explored 7 nodes (8008 simplex iterations) in 1.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.821600000000e+04, best bound 7.820900000000e+04, gap 0.0089%