Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:48:31 2012
Optimize a model with 11799 rows, 3540 columns and 38643 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.29s
Presolved: 11856 rows, 3538 columns, 41724 nonzeros
Variable types: 0 continuous, 3538 integer (3538 binary)
Found heuristic solution: objective 59.0000000
Root relaxation: objective 2.000000e+00, 2670 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 0 118 59.00000 2.00000 96.6% - 0s
H 0 0 53.0000000 2.00000 96.2% - 0s
H 0 0 5.0000000 2.00000 60.0% - 0s
0 0 2.66667 0 1446 5.00000 2.66667 46.7% - 1s
0 0 2.66667 0 1274 5.00000 2.66667 46.7% - 2s
0 0 2.66667 0 174 5.00000 2.66667 46.7% - 2s
0 0 2.67059 0 3246 5.00000 2.67059 46.6% - 3s
0 0 2.67059 0 3201 5.00000 2.67059 46.6% - 4s
0 0 2.67059 0 3189 5.00000 2.67059 46.6% - 4s
0 0 2.67059 0 3194 5.00000 2.67059 46.6% - 5s
0 0 2.67059 0 2959 5.00000 2.67059 46.6% - 6s
0 0 2.67059 0 2957 5.00000 2.67059 46.6% - 6s
0 0 2.67059 0 2970 5.00000 2.67059 46.6% - 7s
0 0 2.67059 0 2907 5.00000 2.67059 46.6% - 8s
0 0 2.67059 0 2969 5.00000 2.67059 46.6% - 9s
0 0 2.67059 0 2954 5.00000 2.67059 46.6% - 10s
0 0 2.67059 0 2964 5.00000 2.67059 46.6% - 11s
0 0 2.67059 0 2958 5.00000 2.67059 46.6% - 12s
0 0 2.67059 0 2952 5.00000 2.67059 46.6% - 13s
0 0 2.67059 0 2948 5.00000 2.67059 46.6% - 14s
0 0 2.67059 0 2951 5.00000 2.67059 46.6% - 15s
0 0 2.67059 0 2951 5.00000 2.67059 46.6% - 15s
0 2 2.80000 0 2951 5.00000 2.80000 44.0% - 21s
* 27 3 21 4.0000000 3.00000 25.0% 388 23s
Cutting planes:
Clique: 109
Zero half: 6
Explored 31 nodes (41380 simplex iterations) in 23.20 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%