Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012 Optimize a model with 198 rows, 29 columns and 396 nonzeros Presolve removed 134 rows and 0 columns Presolve time: 0.00s Presolved: 64 rows, 29 columns, 290 nonzeros Variable types: 0 continuous, 29 integer (29 binary) Found heuristic solution: objective 4.0000000 Root relaxation: objective 7.125000e+00, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7.12500 0 22 4.00000 7.12500 78.1% - 0s H 0 0 5.0000000 7.12500 42.5% - 0s 0 0 6.90909 0 24 5.00000 6.90909 38.2% - 0s H 0 0 6.0000000 6.90909 15.2% - 0s Cutting planes: Gomory: 1 Clique: 5 Explored 0 nodes (60 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%