Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:26 2013

Optimize a model with 14858 rows, 14478 columns and 57798 nonzeros
Presolve removed 592 rows and 0 columns
Presolve time: 0.08s
Presolved: 14266 rows, 14478 columns, 56614 nonzeros
Variable types: 14440 continuous, 38 integer (38 binary)

Root relaxation: objective 3.804988e+04, 2123 iterations, 0.15 seconds

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

     0     0 38049.8805    0    4          - 38049.8805     -      -    0s
H    0     0                    38444.000000 38049.8805  1.03%     -    0s
H    0     0                    38156.000000 38049.8805  0.28%     -    0s
     0     0 38051.3491    0    5 38156.0000 38051.3491  0.27%     -    0s
     0     2 38059.1129    0    5 38156.0000 38059.1129  0.25%     -    0s
*    7     3               6    38115.000000 38077.9079  0.10%  35.4    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 16 nodes (2485 simplex iterations) in 0.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.811500000000e+04, best bound 3.811500000000e+04, gap 0.0%