Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:53:28 2013

Optimize a model with 14234 rows, 1936 columns and 43560 nonzeros
Presolve removed 1333 rows and 973 columns
Presolve time: 0.11s
Presolved: 12901 rows, 963 columns, 39769 nonzeros
Variable types: 26 continuous, 937 integer (937 binary)
Found heuristic solution: objective 34888.000000

Root relaxation: objective 2.351311e+04, 10988 iterations, 0.59 seconds

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

     0     0 23513.1111    0   20 34888.0000 23513.1111  32.6%     -    0s
H    0     0                    23558.000000 23513.1111  0.19%     -    0s
H    0     0                    23547.000000 23513.1111  0.14%     -    0s
H    0     0                    23533.000000 23513.1111  0.08%     -    0s
     0     0 23514.0000    0   25 23533.0000 23514.0000  0.08%     -    0s
     0     0 23514.0000    0   17 23533.0000 23514.0000  0.08%     -    1s
H    0     0                    23531.000000 23514.0000  0.07%     -    1s
H    0     0                    23524.000000 23514.0000  0.04%     -    1s
     0     0 23514.0000    0   26 23524.0000 23514.0000  0.04%     -    1s
     0     2 23514.0000    0   10 23524.0000 23514.0000  0.04%     -    1s
H    6     5                    23522.000000 23514.0000  0.03%   3.7    1s
H  256   123                    23521.000000 23514.0000  0.03%  35.6    1s
H  364   191                    23520.000000 23514.0000  0.03%  30.3    1s
H  962   426                    23519.000000 23514.0000  0.02%  23.6    2s
H 1834   159                    23516.000000 23514.0000  0.01%  24.8    4s

Cutting planes:
  Gomory: 4
  Cover: 1
  Implied bound: 1
  MIR: 69
  Zero half: 18

Explored 1834 nodes (59615 simplex iterations) in 4.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.351600000000e+04, best bound 2.351400000000e+04, gap 0.0085%