Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:02:53 2013

Optimize a model with 54809 rows, 4761 columns and 166635 nonzeros
Presolve removed 10516 rows and 2530 columns
Presolve time: 0.43s
Presolved: 44293 rows, 2231 columns, 134000 nonzeros
Variable types: 17 continuous, 2214 integer (2214 binary)
Found heuristic solution: objective 112894.00000

Root relaxation: objective 9.411221e+04, 7045 iterations, 0.60 seconds

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

     0     0 94112.2099    0    8 112894.000 94112.2099  16.6%     -    1s
H    0     0                    94122.000000 94112.2099  0.01%     -    1s
     0     0 94112.6808    0   22 94122.0000 94112.6808  0.01%     -    1s

Cutting planes:
  Gomory: 4
  MIR: 6

Explored 0 nodes (7129 simplex iterations) in 1.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.412200000000e+04, best bound 9.411300000000e+04, gap 0.0096%