Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:31:44 2014 Optimize a model with 5051 rows, 2551 columns and 12500 nonzeros Presolve removed 50 rows and 0 columns Presolve time: 0.11s Presolved: 5001 rows, 2551 columns, 12450 nonzeros Variable types: 1 continuous, 2550 integer (2550 binary) Found heuristic solution: objective 1.0359253 Found heuristic solution: objective 1.0305319 Found heuristic solution: objective 0.6748653 Root relaxation: objective 9.832180e-03, 2786 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00983 0 1758 0.67487 0.00983 98.5% - 0s H 0 0 0.4484462 0.00983 97.8% - 0s 0 0 0.02264 0 797 0.44845 0.02264 95.0% - 0s 0 0 0.08843 0 439 0.44845 0.08843 80.3% - 1s H 0 0 0.4179843 0.08843 78.8% - 1s H 0 0 0.4041461 0.08843 78.1% - 1s 0 0 0.12516 0 377 0.40415 0.12516 69.0% - 1s H 0 0 0.3643522 0.12516 65.6% - 1s 0 0 0.15198 0 288 0.36435 0.15198 58.3% - 1s 0 2 0.17608 0 288 0.36435 0.17608 51.7% - 2s H 1 2 0.3084096 0.17608 42.9% 757 3s H 3 3 0.2972862 0.27530 7.40% 252 3s H 6 5 0.2908550 0.27868 4.18% 361 3s Cutting planes: Gomory: 1 Implied bound: 3 Explored 7 nodes (20771 simplex iterations) in 3.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.908549644965e-01, best bound 2.908549644965e-01, gap 0.0%