Gurobi 5.6.3 (linux64) logging started Tue Oct 7 23:02:26 2014 Optimize a model with 17956 rows, 17823 columns and 70889 nonzeros Presolve time: 0.35s Presolved: 17956 rows, 17823 columns, 70889 nonzeros Variable types: 1 continuous, 17822 integer (17822 binary) Found heuristic solution: objective 1.0500391 Found heuristic solution: objective 0.8566751 Found heuristic solution: objective 0.8559184 Root relaxation: objective 1.045727e-01, 5857 iterations, 1.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.10457 0 1114 0.85592 0.10457 87.8% - 1s H 0 0 0.8218253 0.10457 87.3% - 1s H 0 0 0.1805587 0.10457 42.1% - 3s 0 0 0.11024 0 957 0.18056 0.11024 38.9% - 4s 0 0 0.11024 0 952 0.18056 0.11024 38.9% - 5s 0 0 0.11240 0 971 0.18056 0.11240 37.7% - 5s 0 0 0.11287 0 1027 0.18056 0.11287 37.5% - 5s 0 0 0.11302 0 1037 0.18056 0.11302 37.4% - 5s 0 0 0.11485 0 930 0.18056 0.11485 36.4% - 5s 0 0 0.11493 0 917 0.18056 0.11493 36.3% - 5s 0 0 0.11494 0 968 0.18056 0.11494 36.3% - 5s 0 0 0.11494 0 912 0.18056 0.11494 36.3% - 6s H 0 0 0.1788833 0.11494 35.7% - 6s 0 2 0.11736 0 902 0.17888 0.11736 34.4% - 6s H 27 25 0.1769321 0.11874 32.9% 355 6s H 54 41 0.1748850 0.11876 32.1% 277 7s * 68 49 20 0.1706773 0.11876 30.4% 236 7s * 69 45 20 0.1691891 0.11876 29.8% 233 7s * 75 42 8 0.1658588 0.12003 27.6% 232 7s * 78 41 8 0.1655737 0.12003 27.5% 229 7s Cutting planes: Gomory: 5 MIR: 26 Zero half: 1 Explored 174 nodes (46810 simplex iterations) in 8.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.655737003125e-01, best bound 1.655737003125e-01, gap 0.0%