Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:42:10 2013

Optimize a model with 1702 rows, 53861 columns and 2503054 nonzeros
Presolve removed 22 rows and 0 columns
Presolve time: 3.05s
Presolved: 1680 rows, 53861 columns, 2502057 nonzeros
Variable types: 0 continuous, 53861 integer (53861 binary)
Found heuristic solution: objective 28294.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8998    1.7954226e+04   3.247252e+02   0.000000e+00      5s
   13123    1.8112766e+04   6.991451e+02   0.000000e+00     10s
   14734    1.8143000e+04   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 1.814300e+04, 14734 iterations, 12.72 seconds

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

*    0     0               0    18143.000000 18143.0000   0.0%     -   16s

Explored 0 nodes (14734 simplex iterations) in 16.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.814299999999e+04, best bound 1.814299999999e+04, gap 0.0%