Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:59 2013

Optimize a model with 14134 rows, 13764 columns and 54834 nonzeros
Presolve removed 37 rows and 0 columns
Presolve time: 0.06s
Presolved: 14097 rows, 13764 columns, 54797 nonzeros
Variable types: 13727 continuous, 37 integer (37 binary)

Root relaxation: objective 3.594779e+04, 1927 iterations, 0.28 seconds

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

     0     0 35947.7902    0   23          - 35947.7902     -      -    0s
H    0     0                    42432.000000 35947.7902  15.3%     -    0s
     0     0 41574.3832    0    4 42432.0000 41574.3832  2.02%     -    0s
H    0     0                    42273.000000 41574.3832  1.65%     -    0s
H    0     0                    41681.000000 41574.3832  0.26%     -    0s
     0     0 41585.6692    0    3 41681.0000 41585.6692  0.23%     -    0s
     0     0 41586.0494    0    2 41681.0000 41586.0494  0.23%     -    1s
     0     0 41586.0494    0   21 41681.0000 41586.0494  0.23%     -    1s
     0     0 41586.0494    0    3 41681.0000 41586.0494  0.23%     -    1s
     0     0 41586.0494    0    2 41681.0000 41586.0494  0.23%     -    1s
     0     0 41586.0494    0    2 41681.0000 41586.0494  0.23%     -    1s
     0     2 41586.7800    0    2 41681.0000 41586.7800  0.23%     -    2s
H    2     2                    41638.888889 41602.0000  0.09%   7.0    2s
H    3     1                    41629.717949 41602.0000  0.07%  16.3    2s
*    4     1               4    41617.000000 41602.0000  0.04%  13.0    2s

Cutting planes:
  Gomory: 2
  Implied bound: 22

Explored 6 nodes (5192 simplex iterations) in 2.12 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%