Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:45:09 2013

Optimize a model with 1461 rows, 36089 columns and 1801658 nonzeros
Presolve removed 19 rows and 114 columns (presolve time = 5s) ...
Presolve removed 21 rows and 128 columns
Presolve time: 7.45s
Presolved: 1440 rows, 35961 columns, 1796920 nonzeros
Variable types: 0 continuous, 35961 integer (35961 binary)
Found heuristic solution: objective 17970.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8069    1.3158139e+04   3.328746e+01   0.000000e+00      5s
    8601    1.3160833e+04   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 1.316083e+04, 8601 iterations, 5.91 seconds

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

     0     0 13160.8333    0  139 17970.0000 13160.8333  26.8%     -   14s
H    0     0                    13468.000000 13160.8333  2.28%     -   16s
H    0     0                    13271.000000 13160.8333  0.83%     -   16s
     0     0 13163.3333    0   76 13271.0000 13163.3333  0.81%     -   20s
H    0     0                    13257.000000 13163.3333  0.71%     -   29s
     0     0 13163.3333    0  119 13257.0000 13163.3333  0.71%     -   33s
     0     0 13165.0000    0   94 13257.0000 13165.0000  0.69%     -   35s
*    0     0               0    13165.000000 13165.0000   0.0%     -   38s

Cutting planes:
  Clique: 12
  Zero half: 41

Explored 0 nodes (18382 simplex iterations) in 38.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.316500000000e+04, best bound 1.316500000000e+04, gap 0.0%