Gurobi 5.6.3 (linux64) logging started Wed Oct 8 07:13:53 2014 Optimize a model with 62001 rows, 61753 columns and 246264 nonzeros Presolve time: 2.02s Presolved: 62001 rows, 61753 columns, 246264 nonzeros Variable types: 1 continuous, 61752 integer (61752 binary) Found heuristic solution: objective 1.1750216 Found heuristic solution: objective 1.1718513 Found heuristic solution: objective 0.7855891 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 11682 7.7833157e-02 1.327560e+04 0.000000e+00 5s 13022 7.8161511e-02 0.000000e+00 0.000000e+00 8s Root relaxation: objective 7.816151e-02, 13022 iterations, 7.56 seconds Total elapsed time = 10.47s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.07816 0 2375 0.78559 0.07816 90.1% - 10s H 0 0 0.1414882 0.07816 44.8% - 22s 0 0 0.08035 0 2045 0.14149 0.08035 43.2% - 29s 0 0 0.08035 0 2070 0.14149 0.08035 43.2% - 31s 0 0 0.08120 0 2160 0.14149 0.08120 42.6% - 32s 0 0 0.08131 0 2203 0.14149 0.08131 42.5% - 32s 0 0 0.08145 0 2181 0.14149 0.08145 42.4% - 32s 0 0 0.08145 0 2179 0.14149 0.08145 42.4% - 32s 0 0 0.08147 0 2221 0.14149 0.08147 42.4% - 33s 0 0 0.08147 0 2148 0.14149 0.08147 42.4% - 33s 0 2 0.08147 0 2148 0.14149 0.08147 42.4% - 35s H 27 27 0.1397585 0.08149 41.7% 490 38s 54 56 0.10917 28 985 0.13976 0.08149 41.7% 522 40s H 81 81 0.1394770 0.08149 41.6% 450 41s H 109 97 0.1363704 0.08149 40.2% 364 41s H 163 147 0.1327439 0.08149 38.6% 359 43s 178 156 0.08977 8 1620 0.13274 0.08187 38.3% 371 45s H 190 162 0.1306426 0.08187 37.3% 373 45s H 217 187 0.1287440 0.08187 36.4% 358 46s H 244 203 0.1277886 0.08187 35.9% 363 47s H 271 209 0.1277886 0.08190 35.9% 360 48s H 298 220 0.1275035 0.08190 35.8% 345 49s 307 225 0.12742 9 34 0.12750 0.08190 35.8% 349 50s H 308 224 0.1274160 0.08190 35.7% 347 50s * 330 219 7 0.1273170 0.08285 34.9% 358 51s 342 209 infeasible 12 0.12732 0.08395 34.1% 431 55s 400 194 infeasible 7 0.12732 0.08786 31.0% 460 60s 444 150 infeasible 24 0.12732 0.09586 24.7% 512 65s 639 22 0.12056 12 561 0.12732 0.11839 7.02% 432 70s Cutting planes: Gomory: 4 MIR: 7 Zero half: 1 Explored 681 nodes (316169 simplex iterations) in 70.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.273170321124e-01, best bound 1.273170321124e-01, gap 0.0%