Gurobi 5.6.3 (linux64) logging started Wed Oct 8 02:27:36 2014 Optimize a model with 39601 rows, 39403 columns and 157014 nonzeros Presolve time: 1.05s Presolved: 39601 rows, 39403 columns, 157014 nonzeros Variable types: 1 continuous, 39402 integer (39402 binary) Found heuristic solution: objective 1.0703607 Found heuristic solution: objective 1.0328932 Found heuristic solution: objective 0.9394382 Root relaxation: objective 8.923530e-02, 10314 iterations, 4.60 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08924 0 1785 0.93944 0.08924 90.5% - 6s H 0 0 0.1435345 0.08924 37.8% - 9s 0 0 0.09830 0 1179 0.14353 0.09830 31.5% - 12s 0 0 0.09830 0 1181 0.14353 0.09830 31.5% - 13s 0 0 0.10129 0 1243 0.14353 0.10129 29.4% - 13s 0 0 0.10389 0 1152 0.14353 0.10389 27.6% - 13s 0 0 0.10439 0 1240 0.14353 0.10439 27.3% - 13s 0 0 0.10441 0 1199 0.14353 0.10441 27.3% - 13s 0 0 0.10442 0 1217 0.14353 0.10442 27.3% - 13s 0 0 0.10445 0 1131 0.14353 0.10445 27.2% - 14s 0 0 0.10445 0 1132 0.14353 0.10445 27.2% - 14s 0 0 0.10445 0 1132 0.14353 0.10445 27.2% - 14s 0 2 0.10446 0 1132 0.14353 0.10446 27.2% - 14s 2 5 0.10469 1 1184 0.14353 0.10469 27.1% 1199 15s H 27 27 0.1433672 0.10505 26.7% 429 15s H 54 54 0.1412517 0.10505 25.6% 274 16s H 81 71 0.1410769 0.10510 25.5% 243 16s * 102 80 12 0.1407308 0.10590 24.7% 240 16s H 108 76 0.1395581 0.10593 24.1% 238 16s * 119 75 8 0.1393174 0.10732 23.0% 240 17s * 121 72 6 0.1392610 0.10732 22.9% 237 17s H 142 51 0.1384351 0.11845 14.4% 244 17s * 148 54 11 0.1377002 0.11885 13.7% 235 17s Cutting planes: Gomory: 2 MIR: 39 Zero half: 9 Mod-K: 1 Explored 203 nodes (70201 simplex iterations) in 17.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.377002045686e-01, best bound 1.377002045686e-01, gap 0.0%