Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:40:10 2013

Optimize a model with 39122 rows, 38502 columns and 153822 nonzeros
Presolve removed 2818 rows and 0 columns
Presolve time: 0.22s
Presolved: 36304 rows, 38502 columns, 148186 nonzeros
Variable types: 38440 continuous, 62 integer (62 binary)

Root relaxation: objective 6.243870e+04, 6118 iterations, 0.82 seconds

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

     0     0 62438.7032    0    4          - 62438.7032     -      -    1s
H    0     0                    64167.000000 62438.7032  2.69%     -    1s
     0     0 62441.3020    0    6 64167.0000 62441.3020  2.69%     -    1s
     0     0 62441.5810    0    7 64167.0000 62441.5810  2.69%     -    1s
     0     0 62441.6159    0    7 64167.0000 62441.6159  2.69%     -    2s
     0     0 62441.6346    0    7 64167.0000 62441.6346  2.69%     -    2s
     0     0 62441.6346    0    7 64167.0000 62441.6346  2.69%     -    2s
H    0     0                    62604.000000 62441.6346  0.26%     -    3s
     0     0 62441.6346    0    4 62604.0000 62441.6346  0.26%     -    4s
     0     0 62443.0244    0    7 62604.0000 62443.0244  0.26%     -    4s
     0     0 62443.0244    0    7 62604.0000 62443.0244  0.26%     -    4s
     0     0 62443.0244    0    7 62604.0000 62443.0244  0.26%     -    4s
     0     0 62443.0569    0    7 62604.0000 62443.0569  0.26%     -    4s
     0     2 62451.8889    0    7 62604.0000 62451.8889  0.24%     -    5s
H    6     6                    62592.886598 62495.6219  0.16%  49.2    5s
*    7     7               7    62566.000000 62495.6219  0.11%  53.4    5s

Cutting planes:
  Gomory: 2
  Flow cover: 8

Explored 26 nodes (10428 simplex iterations) in 5.93 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.256600000000e+04, best bound 6.256600000000e+04, gap 0.0%