Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:30:11 2013

Optimize a model with 35459 rows, 34869 columns and 139299 nonzeros
Presolve removed 3402 rows and 0 columns
Presolve time: 0.20s
Presolved: 32057 rows, 34869 columns, 132495 nonzeros
Variable types: 34810 continuous, 59 integer (59 binary)

Root relaxation: objective 5.976500e+04, 5503 iterations, 0.64 seconds

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

     0     0 59765.0014    0    4          - 59765.0014     -      -    0s
H    0     0                    59992.000000 59765.0014  0.38%     -    1s
H    0     0                    59880.000000 59765.0014  0.19%     -    1s
H    0     0                    59784.000000 59765.0014  0.03%     -    1s
     0     0 59766.3326    0    6 59784.0000 59766.3326  0.03%     -    1s
     0     0 59766.3326    0    4 59784.0000 59766.3326  0.03%     -    1s
     0     0 59772.9748    0    2 59784.0000 59772.9748  0.02%     -    1s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 0 nodes (6982 simplex iterations) in 1.98 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.978400000000e+04, best bound 5.978400000000e+04, gap 0.0%