Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:09:35 2013

Optimize a model with 76153 rows, 5929 columns and 231231 nonzeros
Presolve removed 4077 rows and 2976 columns
Presolve time: 0.60s
Presolved: 72076 rows, 2953 columns, 219334 nonzeros
Variable types: 42 continuous, 2911 integer (2911 binary)
Found heuristic solution: objective 125603.00000

Root relaxation: objective 8.910440e+04, 30054 iterations, 3.19 seconds

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

     0     0 89104.4000    0   12 125603.000 89104.4000  29.1%     -    4s
H    0     0                    89133.000000 89104.4000  0.03%     -    4s
H    0     0                    89123.000000 89104.4000  0.02%     -    4s
H    0     0                    89116.000000 89104.4000  0.01%     -    4s
     0     0 89105.0000    0   28 89116.0000 89105.0000  0.01%     -    4s
     0     0 89105.0000    0   16 89116.0000 89105.0000  0.01%     -    5s
     0     0 89105.0000    0   41 89116.0000 89105.0000  0.01%     -    5s
     0     0 89105.0000    0   41 89116.0000 89105.0000  0.01%     -    5s
     0     0 89105.0000    0   34 89116.0000 89105.0000  0.01%     -    5s
H    0     0                    89111.000000 89105.0000  0.01%     -    5s

Cutting planes:
  Gomory: 2
  MIR: 7

Explored 0 nodes (34921 simplex iterations) in 5.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.911100000000e+04, best bound 8.910500000000e+04, gap 0.0067%