Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:31:26 2013

Optimize a model with 1311 rows, 28749 columns and 1459564 nonzeros
Presolve removed 36 rows and 208 columns
Presolve time: 5.06s
Presolved: 1275 rows, 28541 columns, 1448628 nonzeros
Variable types: 0 continuous, 28541 integer (28541 binary)
Found heuristic solution: objective 12810.000000

Root relaxation: objective 1.087433e+04, 7275 iterations, 3.84 seconds

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

     0     0 10874.3333    0  105 12810.0000 10874.3333  15.1%     -    9s
H    0     0                    11002.000000 10874.3333  1.16%     -   12s
H    0     0                    10979.000000 10874.3333  0.95%     -   12s
     0     0 10888.6667    0  103 10979.0000 10888.6667  0.82%     -   14s
H    0     0                    10977.000000 10888.6667  0.80%     -   24s
     0     0 10895.0000    0   46 10977.0000 10895.0000  0.75%     -   27s
     0     0 10900.0000    0   80 10977.0000 10900.0000  0.70%     -   28s
     0     0 10911.0000    0   46 10977.0000 10911.0000  0.60%     -   30s
     0     0 10930.0769    0  116 10977.0000 10930.0769  0.43%     -   32s
*    0     0               0    10931.000000 10931.0000   0.0%     -   33s

Cutting planes:
  Clique: 6
  Zero half: 4

Explored 0 nodes (17944 simplex iterations) in 33.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.093100000000e+04, best bound 1.093100000000e+04, gap 0.0%