Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:06:00 2013

Optimize a model with 64897 rows, 5329 columns and 197173 nonzeros
Presolve removed 5378 rows and 2708 columns
Presolve time: 0.54s
Presolved: 59519 rows, 2621 columns, 180791 nonzeros
Variable types: 32 continuous, 2589 integer (2589 binary)
Found heuristic solution: objective 119816.00000

Root relaxation: objective 8.988049e+04, 12630 iterations, 1.08 seconds

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

     0     0 89880.4923    0   13 119816.000 89880.4923  25.0%     -    1s
H    0     0                    89893.000000 89880.4923  0.01%     -    1s
H    0     0                    89892.000000 89880.4923  0.01%     -    2s
     0     0 89881.7615    0   34 89892.0000 89881.7615  0.01%     -    2s
     0     0 89881.7615    0   17 89892.0000 89881.7615  0.01%     -    2s
     0     0 89881.7615    0   36 89892.0000 89881.7615  0.01%     -    2s
H    0     0                    89891.000000 89881.7615  0.01%     -    2s
     0     2 89882.1123    0   30 89891.0000 89882.1123  0.01%     -    2s

Cutting planes:
  Gomory: 1
  MIR: 5

Explored 1 nodes (15052 simplex iterations) in 2.90 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.989100000000e+04, best bound 8.988300000000e+04, gap 0.0089%