Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:13:37 2013

Optimize a model with 69803 rows, 68973 columns and 275643 nonzeros
Presolve removed 7234 rows and 0 columns
Presolve time: 0.45s
Presolved: 62569 rows, 68973 columns, 261175 nonzeros
Variable types: 68890 continuous, 83 integer (83 binary)

Root relaxation: objective 9.660657e+04, 13715 iterations, 2.79 seconds

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

     0     0 96606.5712    0    4          - 96606.5712     -      -    3s
H    0     0                    96837.000000 96606.5712  0.24%     -    3s
H    0     0                    96627.000000 96606.5712  0.02%     -    4s
     0     0 96608.5148    0    5 96627.0000 96608.5148  0.02%     -    4s
     0     0 96608.5148    0    4 96627.0000 96608.5148  0.02%     -    6s
     0     0 96608.5281    0    5 96627.0000 96608.5281  0.02%     -    6s
     0     0 96608.5281    0    5 96627.0000 96608.5281  0.02%     -    6s
     0     0 96608.5281    0    4 96627.0000 96608.5281  0.02%     -    6s
     0     0 96608.5281    0    5 96627.0000 96608.5281  0.02%     -    7s
     0     0 96609.2333    0    3 96627.0000 96609.2333  0.02%     -    7s
     0     2 96609.4667    0    3 96627.0000 96609.4667  0.02%     -    7s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 4 nodes (17832 simplex iterations) in 7.90 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.662700000000e+04, best bound 9.662274859350e+04, gap 0.0044%