Gurobi 5.0.1 (linux64) logging started Fri Nov 16 09:28:31 2012

Optimize a model with 13332 rows, 4422 columns and 44154 nonzeros
Presolve time: 0.11s
Presolved: 13332 rows, 4422 columns, 44352 nonzeros
Variable types: 0 continuous, 4422 integer (4422 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 2.000000e+00, 4913 iterations, 0.28 seconds

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

     0     0    2.00000    0  132   40.00000    2.00000  95.0%     -    1s
H    0     0                      10.0000000    2.00000  80.0%     -    1s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     0     0    2.00000    0  132    5.00000    2.00000  60.0%     -    3s
     0     0    2.00000    0  132    5.00000    2.00000  60.0%     -    9s
     0     0    2.00000    0  132    5.00000    2.00000  60.0%     -   16s
H    0     0                       4.0000000    2.00000  50.0%     -   16s
     0     0    2.00000    0  132    4.00000    2.00000  50.0%     -   23s
     0     0    2.00000    0  132    4.00000    2.00000  50.0%     -   30s
     0     0    2.00000    0  132    4.00000    2.00000  50.0%     -   35s
     0     2    2.00000    0  132    4.00000    2.00000  50.0%     -   52s
     1     3    3.00000    1  811    4.00000    2.00000  50.0% 41101   64s
     2     4    3.00000    1  662    4.00000    3.00000  25.0% 38453   78s
     4     4    3.00000    2  126    4.00000    3.00000  25.0% 20330   80s
    14     3     cutoff    5         4.00000    3.00000  25.0%  6911   85s
    24     1     cutoff    4         4.00000    3.00000  25.0%  4644   90s

Cutting planes:
  Clique: 101

Explored 26 nodes (202433 simplex iterations) in 90.79 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%