Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:03:27 2013

Optimize a model with 1664 rows, 45999 columns and 2398148 nonzeros
Presolve removed 52 rows and 350 columns (presolve time = 5s) ...
Presolve removed 53 rows and 368 columns
Presolve time: 7.45s
Presolved: 1611 rows, 45631 columns, 2375446 nonzeros
Variable types: 0 continuous, 45631 integer (45631 binary)
Found heuristic solution: objective 26193.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7997    1.7693319e+04   2.418680e+02   0.000000e+00      5s
   11291    1.7746076e+04   1.583073e+02   0.000000e+00     10s
   11744    1.7746667e+04   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 1.774667e+04, 11744 iterations, 11.43 seconds
Total elapsed time = 20.50s

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

     0     0 17746.6667    0   90 26193.0000 17746.6667  32.2%     -   20s
H    0     0                    17823.000000 17746.6667  0.43%     -   23s
     0     0 17752.6111    0  247 17823.0000 17752.6111  0.39%     -   29s
     0     0 17752.6111    0   56 17823.0000 17752.6111  0.39%     -   49s
*    0     0               0    17753.000000 17753.0000   0.0%     -   52s

Cutting planes:
  Clique: 7
  Zero half: 3

Explored 0 nodes (25724 simplex iterations) in 52.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.775300000000e+04, best bound 1.775300000000e+04, gap 0.0%