Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:58:29 2013

Optimize a model with 36050 rows, 3600 columns and 109800 nonzeros
Presolve removed 2654 rows and 1816 columns
Presolve time: 0.25s
Presolved: 33396 rows, 1784 columns, 101841 nonzeros
Variable types: 29 continuous, 1755 integer (1755 binary)
Found heuristic solution: objective 65439.000000

Root relaxation: objective 4.590516e+04, 11496 iterations, 0.86 seconds

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

     0     0 45905.1564    0   12 65439.0000 45905.1564  29.9%     -    1s
H    0     0                    45922.000000 45905.1564  0.04%     -    1s
H    0     0                    45917.000000 45905.1564  0.03%     -    1s
     0     0 45906.3464    0   43 45917.0000 45906.3464  0.02%     -    1s
     0     0 45906.3464    0   12 45917.0000 45906.3464  0.02%     -    1s
H    0     0                    45913.000000 45906.3464  0.01%     -    1s
H    0     0                    45912.000000 45906.3464  0.01%     -    1s
     0     0 45906.3464    0   43 45912.0000 45906.3464  0.01%     -    1s
     0     2 45906.7120    0   43 45912.0000 45906.7120  0.01%     -    1s

Cutting planes:
  Gomory: 7
  Clique: 1
  MIR: 27
  Zero half: 12

Explored 7 nodes (14722 simplex iterations) in 2.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.591200000000e+04, best bound 4.590800000000e+04, gap 0.0087%