Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:42 2013

Optimize a model with 14097 rows, 13727 columns and 54797 nonzeros
Presolve removed 265 rows and 0 columns
Presolve time: 0.07s
Presolved: 13832 rows, 13727 columns, 54267 nonzeros
Variable types: 13690 continuous, 37 integer (37 binary)

Root relaxation: objective 4.158567e+04, 2005 iterations, 0.12 seconds

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

     0     0 41585.6692    0    3          - 41585.6692     -      -    0s
H    0     0                    41744.000000 41585.6692  0.38%     -    0s
H    0     0                    41681.000000 41585.6692  0.23%     -    0s
     0     0 41592.9787    0    4 41681.0000 41592.9787  0.21%     -    0s
     0     0 41592.9787    0    4 41681.0000 41592.9787  0.21%     -    0s
     0     0 41593.3673    0    3 41681.0000 41593.3673  0.21%     -    0s
     0     0 41593.3673    0    2 41681.0000 41593.3673  0.21%     -    0s
     0     0 41594.7375    0    3 41681.0000 41594.7375  0.21%     -    0s
H    0     0                    41617.000000 41594.7375  0.05%     -    0s
     0     0 41601.2426    0    2 41617.0000 41601.2426  0.04%     -    0s
     0     0 41601.4694    0    1 41617.0000 41601.4694  0.04%     -    0s
     0     2 41610.0000    0    1 41617.0000 41610.0000  0.02%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 3 nodes (3132 simplex iterations) in 0.97 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.161700000000e+04, best bound 4.161700000000e+04, gap 0.0%