Gurobi 5.6.3 (linux64) logging started Tue Oct 7 22:10:23 2014 Optimize a model with 14161 rows, 14043 columns and 55814 nonzeros Presolve time: 0.25s Presolved: 14161 rows, 14043 columns, 55814 nonzeros Variable types: 1 continuous, 14042 integer (14042 binary) Found heuristic solution: objective 1.0966237 Found heuristic solution: objective 0.8808479 Found heuristic solution: objective 0.8706913 Root relaxation: objective 1.150830e-01, 5006 iterations, 0.73 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.11508 0 1010 0.87069 0.11508 86.8% - 1s H 0 0 0.5189784 0.11508 77.8% - 1s H 0 0 0.1961066 0.11508 41.3% - 1s 0 0 0.13272 0 691 0.19611 0.13272 32.3% - 2s 0 0 0.13274 0 652 0.19611 0.13274 32.3% - 3s 0 0 0.13645 0 702 0.19611 0.13645 30.4% - 3s 0 0 0.13701 0 679 0.19611 0.13701 30.1% - 3s 0 0 0.13709 0 748 0.19611 0.13709 30.1% - 3s 0 0 0.13709 0 746 0.19611 0.13709 30.1% - 3s 0 0 0.13709 0 756 0.19611 0.13709 30.1% - 3s 0 0 0.13709 0 709 0.19611 0.13709 30.1% - 3s 0 2 0.13710 0 709 0.19611 0.13710 30.1% - 3s * 11 11 6 0.1954173 0.14751 24.5% 389 3s * 13 11 8 0.1927916 0.14751 23.5% 336 3s * 15 11 9 0.1917825 0.14751 23.1% 292 3s * 16 8 9 0.1904781 0.14751 22.6% 274 3s * 25 13 8 0.1886320 0.14763 21.7% 192 3s * 26 11 8 0.1865198 0.14763 20.9% 185 3s Cutting planes: Gomory: 3 MIR: 46 Zero half: 4 Explored 36 nodes (23201 simplex iterations) in 3.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.865197950209e-01, best bound 1.865197950209e-01, gap 0.0%