Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:56:20 2013

Optimize a model with 27775 rows, 3025 columns and 84700 nonzeros
Presolve removed 2449 rows and 1532 columns
Presolve time: 0.18s
Presolved: 25326 rows, 1493 columns, 77329 nonzeros
Variable types: 26 continuous, 1467 integer (1467 binary)
Found heuristic solution: objective 78645.000000

Root relaxation: objective 5.924371e+04, 9749 iterations, 0.57 seconds

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

     0     0 59243.7083    0   13 78645.0000 59243.7083  24.7%     -    0s
H    0     0                    59255.000000 59243.7083  0.02%     -    0s
     0     0 59244.1838    0   23 59255.0000 59244.1838  0.02%     -    0s
     0     0 59244.1838    0   11 59255.0000 59244.1838  0.02%     -    1s
     0     0 59244.1918    0   23 59255.0000 59244.1918  0.02%     -    1s
H    0     0                    59251.000000 59244.1918  0.01%     -    1s
     0     1 59244.2264    0   23 59251.0000 59244.2264  0.01%     -    1s

Cutting planes:
  Gomory: 9
  Cover: 2
  MIR: 15
  Zero half: 2

Explored 5 nodes (10319 simplex iterations) in 1.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.925100000000e+04, best bound 5.924600000000e+04, gap 0.0084%