Gurobi 5.6.3 (linux64) logging started Wed Oct 8 04:54:52 2014 Optimize a model with 52441 rows, 52213 columns and 208164 nonzeros Presolve time: 1.60s Presolved: 52441 rows, 52213 columns, 208164 nonzeros Variable types: 1 continuous, 52212 integer (52212 binary) Found heuristic solution: objective 1.0762714 Found heuristic solution: objective 1.0721978 Found heuristic solution: objective 0.8429701 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 10395 8.1926167e-02 4.133942e+04 0.000000e+00 5s 10923 8.1820406e-02 0.000000e+00 0.000000e+00 6s Root relaxation: objective 8.182041e-02, 10923 iterations, 5.95 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08182 0 2139 0.84297 0.08182 90.3% - 8s H 0 0 0.1343361 0.08182 39.1% - 15s 0 0 0.08751 0 1453 0.13434 0.08751 34.9% - 20s 0 0 0.08751 0 1470 0.13434 0.08751 34.9% - 22s 0 0 0.08899 0 1468 0.13434 0.08899 33.8% - 22s 0 0 0.09021 0 1464 0.13434 0.09021 32.8% - 22s 0 0 0.09081 0 1480 0.13434 0.09081 32.4% - 22s 0 0 0.09108 0 1494 0.13434 0.09108 32.2% - 22s 0 0 0.09109 0 1484 0.13434 0.09109 32.2% - 23s 0 0 0.09109 0 1527 0.13434 0.09109 32.2% - 23s 0 0 0.09109 0 1464 0.13434 0.09109 32.2% - 23s H 0 0 0.1340162 0.09109 32.0% - 24s 0 2 0.09141 0 1488 0.13402 0.09141 31.8% - 24s 15 17 0.09542 8 1362 0.13402 0.09196 31.4% 578 25s H 27 27 0.1338944 0.09196 31.3% 482 25s H 54 49 0.1333003 0.09196 31.0% 325 25s H 81 65 0.1312313 0.09196 29.9% 285 26s * 103 77 12 0.1297174 0.09228 28.9% 295 27s * 120 86 22 0.1283291 0.09228 28.1% 264 27s * 125 84 23 0.1279599 0.09228 27.9% 254 27s * 187 115 17 0.1277658 0.09243 27.7% 240 28s * 188 114 17 0.1273579 0.09243 27.4% 239 28s * 190 112 16 0.1267507 0.09243 27.1% 237 28s * 213 116 17 0.1261588 0.09280 26.4% 237 28s * 214 115 17 0.1259990 0.09280 26.3% 235 28s * 217 111 16 0.1258819 0.09280 26.3% 232 28s 256 106 infeasible 8 0.12588 0.09542 24.2% 240 30s H 274 103 0.1256652 0.09995 20.5% 253 30s * 277 103 8 0.1248362 0.09995 19.9% 251 30s Cutting planes: Gomory: 4 MIR: 11 Zero half: 5 Explored 465 nodes (130226 simplex iterations) in 33.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.248362160698e-01, best bound 1.248362160698e-01, gap 0.0%