Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:54:35 2013

Optimize a model with 19649 rows, 2401 columns and 60025 nonzeros
Presolve removed 2375 rows and 1229 columns
Presolve time: 0.15s
Presolved: 17274 rows, 1172 columns, 52829 nonzeros
Variable types: 22 continuous, 1150 integer (1150 binary)
Found heuristic solution: objective 47668.000000

Root relaxation: objective 3.519221e+04, 5864 iterations, 0.26 seconds

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

     0     0 35192.2143    0    6 47668.0000 35192.2143  26.2%     -    0s
H    0     0                    35205.000000 35192.2143  0.04%     -    0s
H    0     0                    35198.000000 35192.2143  0.02%     -    0s
H    0     0                    35197.000000 35192.2143  0.01%     -    0s
     0     0 35194.1581    0   11 35197.0000 35194.1581  0.01%     -    0s

Cutting planes:
  Gomory: 3
  MIR: 4

Explored 0 nodes (5884 simplex iterations) in 0.52 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.519700000000e+04, best bound 3.519500000000e+04, gap 0.0057%