Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:56:43 2013

Optimize a model with 81990 rows, 81090 columns and 324090 nonzeros
Presolve removed 2668 rows and 0 columns
Presolve time: 0.56s
Presolved: 79322 rows, 81090 columns, 318754 nonzeros
Variable types: 81000 continuous, 90 integer (90 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18756    1.1811620e+05   1.411941e+03   0.000000e+00      5s
   19673    1.1841938e+05   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 1.184194e+05, 19673 iterations, 5.63 seconds

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

     0     0 118419.385    0    3          - 118419.385     -      -    6s
H    0     0                    120668.00000 118419.385  1.86%     -    6s
H    0     0                    118658.00000 118419.385  0.20%     -    7s
     0     0 118420.672    0    4 118658.000 118420.672  0.20%     -    7s
     0     0 118420.910    0    4 118658.000 118420.910  0.20%     -    7s
     0     0 118422.155    0    4 118658.000 118422.155  0.20%     -    9s
     0     0 118422.155    0    3 118658.000 118422.155  0.20%     -   13s
     0     0 118422.155    0    4 118658.000 118422.155  0.20%     -   13s
     0     0 118422.155    0    4 118658.000 118422.155  0.20%     -   13s
     0     2 118422.384    0    4 118658.000 118422.384  0.20%     -   15s

Cutting planes:
  Gomory: 1
  Flow cover: 5

Explored 43 nodes (29695 simplex iterations) in 17.92 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.186580000000e+05, best bound 1.186484480470e+05, gap 0.0080%