Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:03:42 2013

Optimize a model with 57225 rows, 4900 columns and 173950 nonzeros
Presolve removed 6210 rows and 2515 columns
Presolve time: 0.46s
Presolved: 51015 rows, 2385 columns, 154849 nonzeros
Variable types: 27 continuous, 2358 integer (2358 binary)
Found heuristic solution: objective 98993.000000

Root relaxation: objective 7.692154e+04, 12370 iterations, 1.17 seconds

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

     0     0 76921.5354    0   11 98993.0000 76921.5354  22.3%     -    1s
H    0     0                    76932.000000 76921.5354  0.01%     -    1s
     0     0 76925.4084    0   25 76932.0000 76925.4084  0.01%     -    2s

Cutting planes:
  Gomory: 3
  Implied bound: 1
  MIR: 10

Explored 0 nodes (12483 simplex iterations) in 2.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.693200000000e+04, best bound 7.692600000000e+04, gap 0.0078%