Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:07:45 2013

Optimize a model with 1479 rows, 40864 columns and 1853936 nonzeros
Presolve removed 22 rows and 118 columns (presolve time = 5s) ...
Presolve removed 24 rows and 155 columns
Presolve time: 8.15s
Presolved: 1455 rows, 40709 columns, 1847457 nonzeros
Variable types: 0 continuous, 40709 integer (40709 binary)
Found heuristic solution: objective 19739.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8806    1.4146194e+04   8.076964e+02   0.000000e+00      5s
   12687    1.4200625e+04   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 1.420063e+04, 12687 iterations, 9.94 seconds

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

     0     0 14200.6250    0  112 19739.0000 14200.6250  28.1%     -   19s
H    0     0                    14631.000000 14200.6250  2.94%     -   20s
     0     0 14219.3571    0  166 14631.0000 14219.3571  2.81%     -   23s
H    0     0                    14593.000000 14219.3571  2.56%     -   35s
     0     0 14219.3571    0  148 14593.0000 14219.3571  2.56%     -   45s
     0     0 14223.0000    0  308 14593.0000 14223.0000  2.54%     -   48s
*    0     0               0    14225.000000 14225.0000   0.0%     -   53s

Cutting planes:
  Clique: 36
  Zero half: 18

Explored 0 nodes (28446 simplex iterations) in 53.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.422500000000e+04, best bound 1.422500000000e+04, gap 0.0%