Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:02:18 2013

Optimize a model with 19844 rows, 19404 columns and 77484 nonzeros
Presolve removed 1114 rows and 0 columns
Presolve time: 0.10s
Presolved: 18730 rows, 19404 columns, 75256 nonzeros
Variable types: 19360 continuous, 44 integer (44 binary)

Root relaxation: objective 4.623027e+04, 3301 iterations, 0.27 seconds

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

     0     0 46230.2721    0    3          - 46230.2721     -      -    0s
H    0     0                    46479.000000 46230.2721  0.54%     -    0s
H    0     0                    46454.000000 46230.2721  0.48%     -    0s
H    0     0                    46390.000000 46230.2721  0.34%     -    0s
     0     0 46230.3322    0    4 46390.0000 46230.3322  0.34%     -    0s
     0     0 46230.3322    0    4 46390.0000 46230.3322  0.34%     -    0s
     0     0 46230.3322    0    4 46390.0000 46230.3322  0.34%     -    0s
     0     0 46230.3322    0    4 46390.0000 46230.3322  0.34%     -    0s
     0     0 46230.3322    0    4 46390.0000 46230.3322  0.34%     -    0s
     0     0 46339.7273    0    1 46390.0000 46339.7273  0.11%     -    1s
     0     0 46339.7273    0    1 46390.0000 46339.7273  0.11%     -    1s
     0     0 46341.2634    0    2 46390.0000 46341.2634  0.11%     -    1s
     0     0 46387.0000    0    1 46390.0000 46387.0000  0.01%     -    1s

Cutting planes:
  Gomory: 1

Explored 0 nodes (4409 simplex iterations) in 1.49 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.639000000000e+04, best bound 4.638700000000e+04, gap 0.0065%