Gurobi 5.0.1 (linux64) logging started Fri Nov 16 08:48:28 2012

Optimize a model with 12415 rows, 4290 columns and 41275 nonzeros
Presolve time: 0.10s
Presolved: 12415 rows, 4290 columns, 41419 nonzeros
Variable types: 0 continuous, 4290 integer (4290 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 2.000000e+00, 4454 iterations, 0.19 seconds

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

     0     0    2.00000    0  130   43.00000    2.00000  95.3%     -    1s
H    0     0                      11.0000000    2.00000  81.8%     -    1s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -    2s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -    8s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   14s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   19s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   25s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   30s
H    0     0                       4.0000000    2.00000  50.0%     -   33s
     0     2    2.00000    0  130    4.00000    2.00000  50.0%     -   43s
     1     3    2.50000    1  214    4.00000    2.00000  50.0% 23811   48s
     2     4    2.50000    1  657    4.00000    2.50000  37.5% 22504   57s
    13     5    2.50000    2  129    4.00000    2.50000  37.5%  4324   60s
    60    12    2.66667    2  442    4.00000    2.50000  37.5%  1364   67s
    79    17 infeasible   12         4.00000    2.50000  37.5%  1162   70s

Cutting planes:
  Clique: 113

Explored 125 nodes (184762 simplex iterations) in 73.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%