Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:55 2013

Optimize a model with 1140 rows, 4020 columns and 10010 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.11s
Presolved: 1120 rows, 3990 columns, 7980 nonzeros
Variable types: 3000 continuous, 990 integer (990 binary)

Root relaxation: objective 2.337984e+04, 143 iterations, 0.00 seconds

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

     0     0 23379.8401    0    1          - 23379.8401     -      -    0s
     0     0 23382.5241    0    2          - 23382.5241     -      -    0s
     0     0 23382.8545    0    2          - 23382.8545     -      -    0s
     0     0 23382.8545    0    2          - 23382.8545     -      -    0s
H    0     0                    24835.469847 23382.8545  5.85%     -    0s
     0     2 23387.1729    0    2 24835.4698 23387.1729  5.83%     -    0s
H   27    25                    23530.799222 23520.0117  0.05%   1.9    0s
*   29    23              26    23530.700530 23520.0117  0.05%   2.0    0s
*   74    16              27    23527.305205 23521.3774  0.03%   2.4    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 97 nodes (665 simplex iterations) in 0.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730520463e+04, best bound 2.352511649022e+04, gap 0.0093%