Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:13:56 2013

Optimize a model with 27612 rows, 27092 columns and 108212 nonzeros
Presolve removed 1215 rows and 0 columns
Presolve time: 0.15s
Presolved: 26397 rows, 27092 columns, 105782 nonzeros
Variable types: 27040 continuous, 52 integer (52 binary)

Root relaxation: objective 6.502822e+04, 5860 iterations, 0.61 seconds

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

     0     0 65028.2248    0    2          - 65028.2248     -      -    0s
H    0     0                    65575.000000 65028.2248  0.83%     -    0s
H    0     0                    65484.000000 65028.2248  0.70%     -    0s
     0     0 65029.3022    0    2 65484.0000 65029.3022  0.69%     -    1s
     0     0 65029.3022    0    2 65484.0000 65029.3022  0.69%     -    1s
     0     2 65036.7429    0    2 65484.0000 65036.7429  0.68%     -    1s
*   10     6              10    65262.000000 65070.5067  0.29%  68.0    2s
*   20     7              10    65195.000000 65102.1399  0.14%  45.8    2s
*   23     5               5    65165.000000 65108.3281  0.09%  44.2    2s
*   25     0               2    65113.000000 65113.0000   0.0%  45.4    2s

Cutting planes:
  Gomory: 1
  Flow cover: 4

Explored 26 nodes (7007 simplex iterations) in 2.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.511300000000e+04, best bound 6.511300000000e+04, gap 0.0%