Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:15 2012 Optimize a model with 111 rows, 104 columns and 379 nonzeros Presolve removed 0 rows and 6 columns Presolve time: 0.00s Presolved: 111 rows, 98 columns, 373 nonzeros Variable types: 0 continuous, 98 integer (97 binary) Found heuristic solution: objective 25.0000000 Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 54 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 42 22.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.32640 0 44 14.00000 0.32640 97.7% - 0s 0 0 0.88168 0 48 14.00000 0.88168 93.7% - 0s H 0 0 13.0000000 0.88168 93.2% - 0s H 0 0 9.0000000 0.88168 90.2% - 0s 0 0 0.88324 0 49 9.00000 0.88324 90.2% - 0s 0 0 0.88324 0 49 9.00000 0.88324 90.2% - 0s H 0 0 6.0000000 0.88324 85.3% - 0s H 0 0 4.0000000 0.88324 77.9% - 0s 0 2 0.91587 0 49 4.00000 0.91587 77.1% - 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 6 nodes (362 simplex iterations) in 0.04 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%