Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:40 2013

Optimize a model with 3456 rows, 3276 columns and 12996 nonzeros
Presolve removed 18 rows and 0 columns
Presolve time: 0.01s
Presolved: 3438 rows, 3276 columns, 12978 nonzeros
Variable types: 3258 continuous, 18 integer (18 binary)

Root relaxation: objective 3.003616e+04, 814 iterations, 0.04 seconds

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

     0     0 30036.1630    0   14          - 30036.1630     -      -    0s
H    0     0                    31144.000000 30036.1630  3.56%     -    0s
*    0     0               0    31138.000000 31138.0000   0.0%     -    0s

Cutting planes:
  Gomory: 9
  Implied bound: 14

Explored 0 nodes (1018 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.113800000000e+04, best bound 3.113800000000e+04, gap 0.0%