Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:45:29 2014 Optimize a model with 5476 rows, 5403 columns and 21389 nonzeros Presolve time: 0.13s Presolved: 5476 rows, 5403 columns, 21389 nonzeros Variable types: 1 continuous, 5402 integer (5402 binary) Found heuristic solution: objective 1.1400835 Found heuristic solution: objective 0.9934352 Found heuristic solution: objective 0.9846525 Root relaxation: objective 1.456275e-01, 2483 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.14563 0 636 0.98465 0.14563 85.2% - 0s H 0 0 0.4066131 0.14563 64.2% - 0s H 0 0 0.3103665 0.14563 53.1% - 0s 0 0 0.15079 0 586 0.31037 0.15079 51.4% - 0s 0 0 0.15079 0 633 0.31037 0.15079 51.4% - 0s H 0 0 0.3018270 0.15079 50.0% - 0s 0 0 0.15099 0 619 0.30183 0.15099 50.0% - 1s 0 0 0.15148 0 669 0.30183 0.15148 49.8% - 1s H 0 0 0.2991099 0.15148 49.4% - 1s 0 0 0.15165 0 625 0.29911 0.15165 49.3% - 1s H 0 0 0.2788512 0.15165 45.6% - 1s 0 0 0.15198 0 622 0.27885 0.15198 45.5% - 1s H 0 0 0.2761221 0.15198 45.0% - 1s H 0 0 0.2417510 0.15198 37.1% - 1s 0 2 0.16729 0 407 0.24175 0.16729 30.8% - 1s * 22 22 14 0.2348015 0.18331 21.9% 134 1s * 24 20 15 0.2279504 0.18331 19.6% 123 1s H 27 19 0.2260754 0.18401 18.6% 117 1s * 31 15 5 0.2243596 0.18926 15.6% 108 1s Cutting planes: Gomory: 4 MIR: 1 Zero half: 1 Explored 47 nodes (13588 simplex iterations) in 1.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.243595983443e-01, best bound 2.243595983443e-01, gap 0.0%