Gurobi 5.6.3 (linux64) logging started Tue Oct 7 22:35:46 2014 Optimize a model with 15876 rows, 15751 columns and 62625 nonzeros Presolve time: 0.29s Presolved: 15876 rows, 15751 columns, 62625 nonzeros Variable types: 1 continuous, 15750 integer (15750 binary) Found heuristic solution: objective 0.9454474 Found heuristic solution: objective 0.9444687 Found heuristic solution: objective 0.9396688 Root relaxation: objective 1.084848e-01, 5617 iterations, 0.80 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.10848 0 1104 0.93967 0.10848 88.5% - 1s H 0 0 0.2395083 0.10848 54.7% - 1s 0 0 0.10960 0 1134 0.23951 0.10960 54.2% - 2s 0 0 0.10960 0 1147 0.23951 0.10960 54.2% - 3s H 0 0 0.2375811 0.10960 53.9% - 3s H 0 0 0.2228514 0.10960 50.8% - 3s 0 0 0.11100 0 1064 0.22285 0.11100 50.2% - 3s 0 0 0.11123 0 1161 0.22285 0.11123 50.1% - 3s 0 0 0.11127 0 1154 0.22285 0.11127 50.1% - 3s 0 0 0.11137 0 1130 0.22285 0.11137 50.0% - 3s 0 0 0.11137 0 1101 0.22285 0.11137 50.0% - 4s H 0 0 0.1970514 0.11137 43.5% - 4s H 0 0 0.1936196 0.11137 42.5% - 4s 0 2 0.11222 0 1047 0.19362 0.11222 42.0% - 4s 3 5 0.11594 2 1016 0.19362 0.11525 40.5% 1313 5s H 27 27 0.1893703 0.11601 38.7% 314 5s H 54 53 0.1869583 0.11601 37.9% 230 5s H 81 74 0.1867776 0.11601 37.9% 172 5s H 109 92 0.1845058 0.11601 37.1% 156 6s H 136 106 0.1768301 0.11697 33.8% 160 6s * 153 103 11 0.1748726 0.12190 30.3% 170 6s Cutting planes: Gomory: 5 MIR: 3 Mod-K: 1 Explored 257 nodes (56876 simplex iterations) in 7.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.748726077867e-01, best bound 1.748726077867e-01, gap 0.0%