Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:17 2013

Optimize a model with 2140 rows, 7020 columns and 18010 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.18s
Presolved: 2120 rows, 6990 columns, 13980 nonzeros
Variable types: 5000 continuous, 1990 integer (1990 binary)

Root relaxation: objective 2.337984e+04, 149 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 23381.1928    0    2          - 23381.1928     -      -    0s
     0     0 23381.3648    0    2          - 23381.3648     -      -    0s
     0     0 23381.3648    0    2          - 23381.3648     -      -    0s
H    0     0                    24848.698062 23381.3648  5.91%     -    0s
     0     2 23383.5117    0    2 24848.6981 23383.5117  5.90%     -    0s
H   54    54                    23536.193086 23520.0145  0.07%   1.6    0s
*  191   117              51    23536.175231 23521.3774  0.06%   2.6    0s
*  194   114              52    23535.857665 23521.3774  0.06%   2.6    0s
*  326   118               9    23532.044486 23523.2582  0.04%   2.6    0s
*  419    79              53    23530.150281 23524.5991  0.02%   2.6    1s
*  433    19              51    23527.307569 23525.1165  0.01%   2.6    1s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 434 nodes (1693 simplex iterations) in 1.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730756914e+04, best bound 2.352511649022e+04, gap 0.0093%