Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:37 2014 Optimize a model with 361 rows, 343 columns and 1314 nonzeros Presolve time: 0.00s Presolved: 361 rows, 343 columns, 1314 nonzeros Variable types: 1 continuous, 342 integer (342 binary) Found heuristic solution: objective 1.0127342 Found heuristic solution: objective 0.8923072 Found heuristic solution: objective 0.7753328 Root relaxation: objective 3.483730e-01, 400 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.34837 0 92 0.77533 0.34837 55.1% - 0s H 0 0 0.6578268 0.34837 47.0% - 0s 0 0 0.36184 0 123 0.65783 0.36184 45.0% - 0s H 0 0 0.6538562 0.36184 44.7% - 0s H 0 0 0.5379280 0.36184 32.7% - 0s * 0 0 0 0.4399287 0.43993 0.00% - 0s Cutting planes: Gomory: 3 Explored 0 nodes (997 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.399287143533e-01, best bound 4.399287143533e-01, gap 0.0%