Gurobi 5.6.3 (linux64) logging started Tue Oct 7 23:44:00 2014 Optimize a model with 21609 rows, 21463 columns and 85410 nonzeros Presolve time: 0.48s Presolved: 21609 rows, 21463 columns, 85410 nonzeros Variable types: 1 continuous, 21462 integer (21462 binary) Found heuristic solution: objective 1.1179835 Found heuristic solution: objective 1.1154047 Found heuristic solution: objective 0.7758629 Root relaxation: objective 1.032017e-01, 6309 iterations, 1.27 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.10320 0 1269 0.77586 0.10320 86.7% - 2s H 0 0 0.7749862 0.10320 86.7% - 2s H 0 0 0.1689540 0.10320 38.9% - 7s 0 0 0.11211 0 927 0.16895 0.11211 33.6% - 8s 0 0 0.11211 0 952 0.16895 0.11211 33.6% - 8s 0 0 0.11299 0 982 0.16895 0.11299 33.1% - 9s 0 0 0.11361 0 977 0.16895 0.11361 32.8% - 9s 0 0 0.11413 0 986 0.16895 0.11413 32.4% - 9s 0 0 0.11447 0 992 0.16895 0.11447 32.2% - 9s 0 0 0.11456 0 1003 0.16895 0.11456 32.2% - 9s 0 0 0.11462 0 990 0.16895 0.11462 32.2% - 9s 0 0 0.11473 0 967 0.16895 0.11473 32.1% - 9s 0 0 0.11476 0 975 0.16895 0.11476 32.1% - 9s 0 0 0.11476 0 963 0.16895 0.11476 32.1% - 9s 0 0 0.11476 0 965 0.16895 0.11476 32.1% - 9s 0 0 0.11476 0 912 0.16895 0.11476 32.1% - 9s 0 2 0.11476 0 912 0.16895 0.11476 32.1% - 10s H 27 27 0.1632147 0.11629 28.8% 292 10s * 87 36 8 0.1614787 0.11876 26.5% 237 11s H 96 35 0.1606466 0.11876 26.1% 217 11s * 102 34 6 0.1604399 0.11883 25.9% 213 11s * 105 32 4 0.1603790 0.12056 24.8% 213 11s Cutting planes: Gomory: 2 MIR: 56 Zero half: 8 Explored 138 nodes (46775 simplex iterations) in 11.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.603790127147e-01, best bound 1.603790127147e-01, gap 0.0%