Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:03:39 2013

Optimize a model with 57225 rows, 4900 columns and 173950 nonzeros
Presolve removed 8363 rows and 2560 columns
Presolve time: 0.44s
Presolved: 48862 rows, 2340 columns, 147656 nonzeros
Variable types: 16 continuous, 2324 integer (2324 binary)
Found heuristic solution: objective 113723.00000

Root relaxation: objective 9.728937e+04, 5041 iterations, 0.53 seconds

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

     0     0 97289.3683    0   12 113723.000 97289.3683  14.5%     -    1s
H    0     0                    97307.000000 97289.3683  0.02%     -    1s
     0     0 97291.2566    0   28 97307.0000 97291.2566  0.02%     -    1s
     0     0 97291.2566    0   10 97307.0000 97291.2566  0.02%     -    1s
H    0     0                    97302.000000 97291.2566  0.01%     -    1s
H    0     0                    97301.000000 97291.2566  0.01%     -    1s
     0     0 97291.8066    0   32 97301.0000 97291.8066  0.01%     -    1s

Cutting planes:
  Gomory: 7
  Implied bound: 1
  MIR: 15

Explored 0 nodes (6444 simplex iterations) in 1.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.730100000000e+04, best bound 9.729200000000e+04, gap 0.0092%