Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:06:18 2013

Optimize a model with 22654 rows, 22184 columns and 88454 nonzeros
Presolve removed 47 rows and 0 columns
Presolve time: 0.10s
Presolved: 22607 rows, 22184 columns, 88407 nonzeros
Variable types: 22137 continuous, 47 integer (47 binary)

Root relaxation: objective 4.021461e+04, 2646 iterations, 0.66 seconds

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

     0     0 40214.6133    0   36          - 40214.6133     -      -    0s
H    0     0                    50690.000000 40214.6133  20.7%     -    1s
     0     0 46015.9372    0    9 50690.0000 46015.9372  9.22%     -    2s
H    0     0                    50394.537658 46015.9372  8.69%     -    2s
H    0     0                    47723.000000 46015.9372  3.58%     -    2s
H    0     0                    46230.000000 46015.9372  0.46%     -    2s
     0     0 46047.1013    0    6 46230.0000 46047.1013  0.40%     -    2s
     0     0 46058.2326    0    4 46230.0000 46058.2326  0.37%     -    2s
H    0     0                    46178.000000 46058.2326  0.26%     -    2s
     0     2 46060.0325    0    4 46178.0000 46060.0325  0.26%     -    3s

Cutting planes:
  Gomory: 1
  Implied bound: 39

Explored 18 nodes (5078 simplex iterations) in 3.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.617800000000e+04, best bound 4.617800000000e+04, gap 0.0%