Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:22:37 2013

Optimize a model with 9177 rows, 1444 columns and 28158 nonzeros
Presolve removed 999 rows and 724 columns
Presolve time: 0.07s
Presolved: 8178 rows, 720 columns, 25409 nonzeros
Variable types: 25 continuous, 695 integer (695 binary)
Found heuristic solution: objective 25697.000000

Root relaxation: objective 1.561300e+04, 6895 iterations, 0.28 seconds

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

     0     0 15613.0000    0   13 25697.0000 15613.0000  39.2%     -    0s
H    0     0                    15634.000000 15613.0000  0.13%     -    0s
H    0     0                    15631.000000 15613.0000  0.12%     -    0s
H    0     0                    15628.000000 15613.0000  0.10%     -    0s
     0     0 15613.0000    0   12 15628.0000 15613.0000  0.10%     -    0s
     0     0 15613.0000    0    8 15628.0000 15613.0000  0.10%     -    0s
H    0     0                    15625.000000 15613.0000  0.08%     -    0s
H    0     0                    15622.000000 15613.0000  0.06%     -    0s
H    0     0                    15621.000000 15613.0000  0.05%     -    0s
     0     0 15613.0222    0   21 15621.0000 15613.0222  0.05%     -    0s
     0     2 15613.1333    0   21 15621.0000 15613.1333  0.05%     -    0s
H    1     2                    15619.000000 15613.1333  0.04%  28.0    0s
H  308   123                    15618.000000 15613.4000  0.03%   6.7    0s
H  419   130                    15617.000000 15613.5970  0.02%   6.3    0s

Cutting planes:
  MIR: 3

Explored 1102 nodes (14722 simplex iterations) in 0.83 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.561700000000e+04, best bound 1.561600000000e+04, gap 0.0064%