Gurobi 5.0.1 (linux64) logging started Fri Nov 16 07:49:42 2012
Optimize a model with 12585 rows, 3906 columns and 41352 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.34s
Presolved: 12645 rows, 3904 columns, 44790 nonzeros
Variable types: 0 continuous, 3904 integer (3904 binary)
Found heuristic solution: objective 62.0000000
Root relaxation: objective 2.000000e+00, 2871 iterations, 0.09 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 2.00000 0 124 62.00000 2.00000 96.8% - 0s
H 0 0 61.0000000 2.00000 96.7% - 0s
H 0 0 5.0000000 2.00000 60.0% - 0s
0 0 2.66667 0 167 5.00000 2.66667 46.7% - 1s
0 0 2.67039 0 3364 5.00000 2.67039 46.6% - 2s
0 0 2.67039 0 3343 5.00000 2.67039 46.6% - 3s
0 0 2.67039 0 3389 5.00000 2.67039 46.6% - 4s
0 0 2.67039 0 2902 5.00000 2.67039 46.6% - 7s
0 0 2.67039 0 3158 5.00000 2.67039 46.6% - 9s
0 0 2.67039 0 2989 5.00000 2.67039 46.6% - 12s
0 0 2.67039 0 3094 5.00000 2.67039 46.6% - 14s
0 0 2.67039 0 3051 5.00000 2.67039 46.6% - 17s
0 0 2.67039 0 2868 5.00000 2.67039 46.6% - 19s
0 0 2.67039 0 2992 5.00000 2.67039 46.6% - 21s
0 0 2.67039 0 3057 5.00000 2.67039 46.6% - 24s
0 0 2.67039 0 2983 5.00000 2.67039 46.6% - 25s
0 2 2.80000 0 2982 5.00000 2.80000 44.0% - 31s
H 27 4 4.0000000 3.00000 25.0% 324 33s
Cutting planes:
Clique: 75
Zero half: 4
Explored 32 nodes (83808 simplex iterations) in 34.69 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%