Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012 Optimize a model with 347 rows, 39 columns and 694 nonzeros Presolve removed 237 rows and 0 columns Presolve time: 0.00s Presolved: 110 rows, 39 columns, 527 nonzeros Variable types: 0 continuous, 39 integer (39 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 8.315385e+00, 65 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 8.31538 0 33 5.00000 8.31538 66.3% - 0s H 0 0 6.0000000 8.31538 38.6% - 0s H 0 0 7.0000000 8.31538 18.8% - 0s 0 0 8.00000 0 30 7.00000 8.00000 14.3% - 0s 0 0 cutoff 0 7.00000 7.99999 14.3% - 0s Cutting planes: Gomory: 1 Clique: 11 Zero half: 11 Explored 0 nodes (117 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%