Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:47:58 2013

Optimize a model with 41664 rows, 41024 columns and 163904 nonzeros
Presolve removed 2914 rows and 0 columns
Presolve time: 0.24s
Presolved: 38750 rows, 41024 columns, 158076 nonzeros
Variable types: 40960 continuous, 64 integer (64 binary)

Root relaxation: objective 6.557187e+04, 7160 iterations, 1.06 seconds

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

     0     0 65571.8702    0    6          - 65571.8702     -      -    1s
H    0     0                    66447.000000 65571.8702  1.32%     -    1s
H    0     0                    65845.000000 65571.8702  0.41%     -    1s
     0     0 65572.9394    0    7 65845.0000 65572.9394  0.41%     -    1s
     0     0 65572.9394    0    7 65845.0000 65572.9394  0.41%     -    2s
     0     0 65590.0619    0    6 65845.0000 65590.0619  0.39%     -    2s
     0     0 65590.0619    0    5 65845.0000 65590.0619  0.39%     -    4s
     0     0 65590.8721    0    6 65845.0000 65590.8721  0.39%     -    4s
     0     0 65591.2739    0    6 65845.0000 65591.2739  0.39%     -    4s
     0     0 65591.4531    0    6 65845.0000 65591.4531  0.39%     -    4s
H    0     0                    65739.000000 65591.4531  0.22%     -    5s
     0     2 65604.4063    0    5 65739.0000 65604.4063  0.20%     -    5s
*    4     4               3    65697.000000 65670.7478  0.04%  86.2    5s

Cutting planes:
  Gomory: 1
  Flow cover: 9

Explored 7 nodes (10445 simplex iterations) in 5.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.569700000000e+04, best bound 6.569700000000e+04, gap 0.0%