Gurobi 5.6.3 (linux64) logging started Wed Oct 8 03:39:33 2014 Optimize a model with 46225 rows, 46011 columns and 183398 nonzeros Presolve time: 1.28s Presolved: 46225 rows, 46011 columns, 183398 nonzeros Variable types: 1 continuous, 46010 integer (46010 binary) Found heuristic solution: objective 1.0957602 Found heuristic solution: objective 1.0729233 Found heuristic solution: objective 1.0340141 Root relaxation: objective 8.384571e-02, 9313 iterations, 4.78 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08385 0 1967 1.03401 0.08385 91.9% - 6s H 0 0 0.1405283 0.08385 40.3% - 12s 0 0 0.09056 0 1256 0.14053 0.09056 35.6% - 16s 0 0 0.09056 0 1329 0.14053 0.09056 35.6% - 17s 0 0 0.09351 0 1336 0.14053 0.09351 33.5% - 17s 0 0 0.09624 0 1291 0.14053 0.09624 31.5% - 18s 0 0 0.09679 0 1283 0.14053 0.09679 31.1% - 18s 0 0 0.09694 0 1346 0.14053 0.09694 31.0% - 18s 0 0 0.09704 0 1328 0.14053 0.09704 30.9% - 18s 0 0 0.09710 0 1317 0.14053 0.09710 30.9% - 18s 0 0 0.09713 0 1323 0.14053 0.09713 30.9% - 18s 0 0 0.09713 0 1260 0.14053 0.09713 30.9% - 19s 0 2 0.09713 0 1260 0.14053 0.09713 30.9% - 19s 7 9 0.09904 4 1237 0.14053 0.09884 29.7% 757 20s H 81 81 0.1399416 0.09884 29.4% 270 21s H 132 105 0.1394818 0.09915 28.9% 263 22s H 135 108 0.1377065 0.09915 28.0% 268 22s * 144 109 14 0.1354384 0.09915 26.8% 258 22s * 167 104 5 0.1350583 0.10024 25.8% 249 23s * 175 108 10 0.1346962 0.10066 25.3% 251 23s * 181 108 12 0.1327329 0.10066 24.2% 243 23s Cutting planes: Gomory: 5 MIR: 60 Zero half: 3 Explored 290 nodes (77415 simplex iterations) in 23.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.327329283130e-01, best bound 1.327329283130e-01, gap 0.0%