Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012 Optimize a model with 362 rows, 38 columns and 724 nonzeros Presolve removed 251 rows and 0 columns Presolve time: 0.00s Presolved: 111 rows, 38 columns, 581 nonzeros Variable types: 0 continuous, 38 integer (38 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 7.650000e+00, 72 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7.65000 0 33 6.00000 7.65000 27.5% - 0s 0 0 7.00000 0 28 6.00000 7.00000 16.7% - 0s 0 0 7.00000 0 27 6.00000 7.00000 16.7% - 0s 0 0 7.00000 0 26 6.00000 7.00000 16.7% - 0s 0 0 7.00000 0 28 6.00000 7.00000 16.7% - 0s 0 0 7.00000 0 11 6.00000 7.00000 16.7% - 0s 0 0 7.00000 0 17 6.00000 7.00000 16.7% - 0s 0 0 7.00000 0 17 6.00000 7.00000 16.7% - 0s 0 2 7.00000 0 17 6.00000 7.00000 16.7% - 0s Cutting planes: Gomory: 1 Clique: 11 Zero half: 3 Explored 4 nodes (645 simplex iterations) in 0.07 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%