Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:46:40 2013

Optimize a model with 814 rows, 54834 columns and 109594 nonzeros
Presolve time: 0.08s
Presolved: 814 rows, 54834 columns, 109594 nonzeros
Variable types: 54760 continuous, 74 integer (74 binary)

Root relaxation: objective 8.894494e+04, 2428 iterations, 0.08 seconds

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

     0     0 88944.9426    0    4          - 88944.9426     -      -    0s
H    0     0                    90229.000000 88944.9426  1.42%     -    0s
H    0     0                    90115.000000 88944.9426  1.30%     -    0s
     0     0 89014.8345    0    3 90115.0000 89014.8345  1.22%     -    0s
     0     0 89014.8345    0    4 90115.0000 89014.8345  1.22%     -    0s
     0     0 89014.8345    0    3 90115.0000 89014.8345  1.22%     -    0s
H    0     0                    89672.000000 89014.8345  0.73%     -    0s
     0     0 89015.9083    0    2 89672.0000 89015.9083  0.73%     -    0s
     0     0 89015.9083    0    2 89672.0000 89015.9083  0.73%     -    0s
     0     0 89015.9083    0    2 89672.0000 89015.9083  0.73%     -    0s
     0     0 89015.9083    0    2 89672.0000 89015.9083  0.73%     -    1s
     0     2 89016.5399    0    2 89672.0000 89016.5399  0.73%     -    1s
*   17     9              15    89573.000000 89176.8054  0.44%  52.5    1s
*   19     5              13    89557.000000 89176.8054  0.42%  50.0    1s
H   24     1                    89466.000000 89446.4615  0.02%  48.2    1s
*   25     1              12    89462.000000 89446.4615  0.02%  47.3    1s

Cutting planes:
  Implied bound: 43

Explored 27 nodes (5809 simplex iterations) in 1.68 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.946200000000e+04, best bound 8.946200000000e+04, gap 0.0%