Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:00:04 2013

Optimize a model with 43744 rows, 4096 columns and 133120 nonzeros
Presolve removed 5064 rows and 2111 columns
Presolve time: 0.32s
Presolved: 38680 rows, 1985 columns, 117196 nonzeros
Variable types: 19 continuous, 1966 integer (1966 binary)
Found heuristic solution: objective 99015.000000

Root relaxation: objective 8.336207e+04, 6995 iterations, 0.56 seconds

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

     0     0 83362.0653    0    9 99015.0000 83362.0653  15.8%     -    0s
H    0     0                    83380.000000 83362.0653  0.02%     -    1s
H    0     0                    83375.000000 83362.0653  0.02%     -    1s
H    0     0                    83372.000000 83362.0653  0.01%     -    1s
     0     0 83365.0604    0   18 83372.0000 83365.0604  0.01%     -    1s

Cutting planes:
  Gomory: 4
  Implied bound: 1
  MIR: 8

Explored 0 nodes (7094 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.337200000000e+04, best bound 8.336600000000e+04, gap 0.0072%