Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:10:12 2013

Optimize a model with 25550 rows, 25050 columns and 100050 nonzeros
Presolve removed 2575 rows and 0 columns
Presolve time: 0.15s
Presolved: 22975 rows, 25050 columns, 94900 nonzeros
Variable types: 25000 continuous, 50 integer (50 binary)

Root relaxation: objective 4.609930e+04, 3019 iterations, 0.31 seconds

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

     0     0 46099.3024    0    5          - 46099.3024     -      -    0s
H    0     0                    47299.000000 46099.3024  2.54%     -    0s
     0     0 46106.3652    0    7 47299.0000 46106.3652  2.52%     -    0s
     0     0 46106.3652    0    7 47299.0000 46106.3652  2.52%     -    0s
H    0     0                    46641.000000 46106.3652  1.15%     -    1s
     0     2 46231.2132    0    5 46641.0000 46231.2132  0.88%     -    1s
H    5     5                    46578.863881 46324.3095  0.55%   102    1s
*   13     6              10    46489.000000 46324.3095  0.35%  76.0    1s
*   21     7               8    46467.000000 46327.2457  0.30%  76.8    2s
*   42     2               5    46440.000000 46434.0287  0.01%  56.7    2s

Cutting planes:
  Gomory: 3
  Flow cover: 4

Explored 45 nodes (5444 simplex iterations) in 2.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.644000000000e+04, best bound 4.644000000000e+04, gap 0.0%