Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:55:02 2013

Optimize a model with 22151 rows, 2601 columns and 67626 nonzeros
Presolve removed 3552 rows and 1356 columns
Presolve time: 0.15s
Presolved: 18599 rows, 1245 columns, 56709 nonzeros
Variable types: 19 continuous, 1226 integer (1226 binary)
Found heuristic solution: objective 57140.000000

Root relaxation: objective 4.123478e+04, 5627 iterations, 0.31 seconds

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

     0     0 41234.7778    0   13 57140.0000 41234.7778  27.8%     -    0s
H    0     0                    41245.000000 41234.7778  0.02%     -    0s
     0     0 41235.0619    0   23 41245.0000 41235.0619  0.02%     -    0s
     0     0 41235.0619    0   10 41245.0000 41235.0619  0.02%     -    0s
     0     0 41235.0619    0   30 41245.0000 41235.0619  0.02%     -    0s
H    0     0                    41242.000000 41235.0619  0.02%     -    0s
     0     0 41235.2778    0   21 41242.0000 41235.2778  0.02%     -    0s
     0     2 41235.2778    0   15 41242.0000 41235.2778  0.02%     -    0s
H  281   128                    41241.000000 41236.3789  0.01%  11.7    1s
*  288   101              42    41240.000000 41236.3789  0.01%  11.5    1s

Cutting planes:
  Gomory: 1
  Cover: 3
  Clique: 2
  MIR: 31
  Zero half: 2

Explored 289 nodes (10818 simplex iterations) in 1.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.124000000000e+04, best bound 4.123700000000e+04, gap 0.0073%