Gurobi 5.0.1 (linux64) logging started Fri Nov 16 08:44:48 2012

Optimize a model with 14495 rows, 4290 columns and 47515 nonzeros
Presolve time: 0.11s
Presolved: 14495 rows, 4290 columns, 47749 nonzeros
Variable types: 0 continuous, 4290 integer (4290 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 2.000000e+00, 4805 iterations, 0.30 seconds

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

     0     0    2.00000    0  130   42.00000    2.00000  95.2%     -    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  130    5.00000    2.00000  60.0%     -    2s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -    9s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   16s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   23s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   31s
     0     0    2.00000    0  130    5.00000    2.00000  60.0%     -   37s
     0     2    2.00000    0  130    5.00000    2.00000  60.0%     -   69s
     1     3    3.00000    1  629    5.00000    2.00000  60.0% 52430   84s
     2     4    3.00000    1  610    5.00000    3.00000  40.0% 36360   93s
     5     3 infeasible    3         5.00000    3.00000  40.0% 16022   95s
*   21     5              17       4.0000000    3.00000  25.0%  4077   96s
    26     2     cutoff    4         4.00000    3.00000  25.0%  3673  100s

Cutting planes:
  Clique: 112

Explored 29 nodes (178784 simplex iterations) in 100.04 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%