Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:59 2012 Optimize a model with 87 rows, 82 columns and 297 nonzeros Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 87 rows, 79 columns, 294 nonzeros Variable types: 0 continuous, 79 integer (78 binary) Found heuristic solution: objective 19.0000000 Root relaxation: objective 0.000000e+00, 52 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 35 19.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.32323 0 37 7.00000 0.32323 95.4% - 0s 0 0 1.02503 0 41 7.00000 1.02503 85.4% - 0s 0 0 1.02859 0 42 7.00000 1.02859 85.3% - 0s H 0 0 6.0000000 1.02859 82.9% - 0s 0 2 1.09813 0 42 6.00000 1.09813 81.7% - 0s * 3 3 3 3.0000000 1.97440 34.2% 25.0 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 7 nodes (296 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%