Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:47:05 2014 Optimize a model with 12100 rows, 11991 columns and 47633 nonzeros Presolve time: 0.20s Presolved: 12100 rows, 11991 columns, 47633 nonzeros Variable types: 1 continuous, 11990 integer (11990 binary) Found heuristic solution: objective 0.9405017 Found heuristic solution: objective 0.9355932 Found heuristic solution: objective 0.6914613 Root relaxation: objective 1.202677e-01, 4689 iterations, 0.53 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.12027 0 1084 0.69146 0.12027 82.6% - 0s H 0 0 0.2605498 0.12027 53.8% - 1s 0 0 0.12369 0 978 0.26055 0.12369 52.5% - 1s 0 0 0.12369 0 1079 0.26055 0.12369 52.5% - 2s 0 0 0.12369 0 1003 0.26055 0.12369 52.5% - 2s 0 0 0.12419 0 1044 0.26055 0.12419 52.3% - 2s H 0 0 0.2601637 0.12419 52.3% - 2s 0 0 0.12442 0 1019 0.26016 0.12442 52.2% - 2s 0 0 0.12460 0 1025 0.26016 0.12460 52.1% - 3s 0 0 0.12461 0 1034 0.26016 0.12461 52.1% - 3s 0 0 0.12461 0 1003 0.26016 0.12461 52.1% - 3s H 0 0 0.2583480 0.12461 51.8% - 3s H 0 0 0.2165343 0.12461 42.5% - 3s 0 2 0.12585 0 927 0.21653 0.12585 41.9% - 3s * 71 65 45 0.1988238 0.12958 34.8% 234 4s 74 62 0.13985 2 596 0.19882 0.12958 34.8% 238 5s H 81 64 0.1946316 0.12958 33.4% 232 5s * 106 50 13 0.1933190 0.13814 28.5% 241 5s * 107 49 14 0.1924240 0.13814 28.2% 239 5s H 108 47 0.1882945 0.13814 26.6% 237 5s Cutting planes: Gomory: 5 MIR: 16 Explored 158 nodes (47368 simplex iterations) in 6.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.882944717953e-01, best bound 1.882944717953e-01, gap 0.0%