Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:56 2013

Optimize a model with 17302 rows, 16892 columns and 67322 nonzeros
Presolve removed 41 rows and 0 columns
Presolve time: 0.07s
Presolved: 17261 rows, 16892 columns, 67281 nonzeros
Variable types: 16851 continuous, 41 integer (41 binary)

Root relaxation: objective 4.289824e+04, 3180 iterations, 0.97 seconds

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

     0     0 42898.2433    0   39          - 42898.2433     -      -    1s
H    0     0                    53726.000000 42898.2433  20.2%     -    1s
     0     0 50074.7085    0    2 53726.0000 50074.7085  6.80%     -    2s
H    0     0                    50362.407434 50074.7085  0.57%     -    2s
H    0     0                    50316.000000 50074.7085  0.48%     -    2s
H    0     0                    50136.000000 50074.7085  0.12%     -    2s
     0     0 50080.8182    0    1 50136.0000 50080.8182  0.11%     -    2s
H    0     0                    50107.000000 50080.8182  0.05%     -    2s
     0     0     cutoff    0      50107.0000 50107.0000   0.0%     -    2s

Cutting planes:
  Implied bound: 38

Explored 1 nodes (4766 simplex iterations) in 2.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.010700000000e+04, best bound 5.010700000000e+04, gap 0.0%