Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:30:22 2012

Optimize a model with 11910 rows, 11880 columns and 45310 nonzeros
Presolve removed 758 rows and 115 columns
Presolve time: 0.07s
Presolved: 11152 rows, 11765 columns, 43710 nonzeros
Variable types: 11067 continuous, 698 integer (698 binary)

Root relaxation: objective 2.431168e+05, 1022 iterations, 0.01 seconds

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

     0     0 243116.834    0    7          - 243116.834     -      -    0s
H    0     0                    244206.00000 243116.834  0.45%     -    0s
H    0     0                    243234.00000 243116.834  0.05%     -    0s
     0     0 243122.700    0   13 243234.000 243122.700  0.05%     -    0s
     0     0 243122.700    0    7 243234.000 243122.700  0.05%     -    0s
     0     0 243122.931    0   15 243234.000 243122.931  0.05%     -    0s
H    0     0                    243205.00000 243122.931  0.03%     -    0s
     0     2 243123.202    0   15 243205.000 243123.202  0.03%     -    0s
*    4     3               4    243132.00000 243127.399  0.00%   3.5    0s

Cutting planes:
  Gomory: 3
  Cover: 1
  Flow cover: 2

Explored 5 nodes (1694 simplex iterations) in 0.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.431320000000e+05, best bound 2.431273991080e+05, gap 0.0019%