Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:12 2012 Optimize a model with 287 rows, 34 columns and 574 nonzeros Presolve removed 203 rows and 0 columns Presolve time: 0.00s Presolved: 84 rows, 34 columns, 431 nonzeros Variable types: 0 continuous, 34 integer (34 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 7.333333e+00, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7.33333 0 17 5.00000 7.33333 46.7% - 0s H 0 0 6.0000000 7.33333 22.2% - 0s 0 0 cutoff 0 6.00000 6.99999 16.7% - 0s Cutting planes: Gomory: 3 Clique: 5 Zero half: 12 Explored 0 nodes (36 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%