Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:14:22 2013

Optimize a model with 572 rows, 27092 columns and 54132 nonzeros
Presolve time: 0.04s
Presolved: 572 rows, 27092 columns, 54132 nonzeros
Variable types: 27040 continuous, 52 integer (52 binary)

Root relaxation: objective 6.500349e+04, 1297 iterations, 0.03 seconds

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

     0     0 65003.4928    0    6          - 65003.4928     -      -    0s
H    0     0                    65831.000000 65003.4928  1.26%     -    0s
     0     0 65025.1261    0    2 65831.0000 65025.1261  1.22%     -    0s
     0     0 65027.9310    0    1 65831.0000 65027.9310  1.22%     -    0s
H    0     0                    65792.620690 65027.9310  1.16%     -    0s
H    0     0                    65624.000000 65027.9310  0.91%     -    0s
     0     0 65027.9810    0    2 65624.0000 65027.9810  0.91%     -    0s
     0     0 65027.9956    0    2 65624.0000 65027.9956  0.91%     -    0s
H    0     0                    65569.000000 65027.9956  0.83%     -    0s
     0     0 65027.9956    0    2 65569.0000 65027.9956  0.83%     -    0s
     0     0 65028.0257    0    2 65569.0000 65028.0257  0.83%     -    0s
     0     2 65029.4286    0    2 65569.0000 65029.4286  0.82%     -    0s
*   10     7              10    65262.000000 65077.0714  0.28%  30.3    0s
H   12     1                    65113.000000 65077.0714  0.06%  25.2    0s

Cutting planes:
  Implied bound: 59
  Flow cover: 3

Explored 17 nodes (1867 simplex iterations) in 0.64 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.511300000000e+04, best bound 6.510667857143e+04, gap 0.0097%