Gurobi 5.6.3 (linux64) logging started Wed Oct 8 06:45:25 2014 Optimize a model with 60025 rows, 59781 columns and 238388 nonzeros Presolve time: 1.74s Presolved: 60025 rows, 59781 columns, 238388 nonzeros Variable types: 1 continuous, 59780 integer (59780 binary) Found heuristic solution: objective 1.0340781 Found heuristic solution: objective 0.9987444 Found heuristic solution: objective 0.8115649 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 11479 7.7693113e-02 8.210913e+04 0.000000e+00 5s 12735 7.8159252e-02 0.000000e+00 0.000000e+00 7s Root relaxation: objective 7.815925e-02, 12735 iterations, 7.36 seconds Total elapsed time = 10.14s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.07816 0 2359 0.81156 0.07816 90.4% - 10s H 0 0 0.1377857 0.07816 43.3% - 23s 0 0 0.08054 0 2079 0.13779 0.08054 41.5% - 30s 0 0 0.08054 0 2033 0.13779 0.08054 41.5% - 32s 0 0 0.08191 0 2070 0.13779 0.08191 40.6% - 33s 0 0 0.08201 0 2083 0.13779 0.08201 40.5% - 33s 0 0 0.08235 0 2134 0.13779 0.08235 40.2% - 33s 0 0 0.08275 0 2104 0.13779 0.08275 39.9% - 34s 0 0 0.08292 0 2174 0.13779 0.08292 39.8% - 34s 0 0 0.08292 0 2196 0.13779 0.08292 39.8% - 34s 0 0 0.08292 0 2066 0.13779 0.08292 39.8% - 35s 0 2 0.08292 0 2066 0.13779 0.08292 39.8% - 36s 33 35 0.08638 17 1908 0.13779 0.08304 39.7% 603 40s H 108 98 0.1360610 0.08304 39.0% 387 42s H 135 117 0.1334862 0.08390 37.1% 393 44s 139 123 0.09801 17 1257 0.13349 0.08390 37.1% 404 45s H 189 153 0.1318910 0.08390 36.4% 375 46s H 216 163 0.1302352 0.08390 35.6% 354 47s H 243 184 0.1285674 0.08398 34.7% 357 48s * 286 219 29 0.1283245 0.08398 34.6% 342 49s 296 215 0.12284 6 163 0.12832 0.08398 34.6% 338 50s H 297 214 0.1273529 0.08398 34.1% 337 50s H 297 214 0.1264848 0.08398 33.6% 337 50s * 307 212 8 0.1252584 0.08408 32.9% 358 51s * 320 221 18 0.1251664 0.08408 32.8% 349 51s * 323 218 16 0.1249833 0.08408 32.7% 347 51s * 344 221 13 0.1242550 0.08408 32.3% 342 52s * 352 223 8 0.1236088 0.08413 31.9% 344 52s H 353 222 0.1231738 0.08413 31.7% 343 52s 360 215 infeasible 9 0.12317 0.08430 31.6% 382 55s 380 195 infeasible 15 0.12317 0.08612 30.1% 452 60s 418 157 infeasible 9 0.12317 0.08970 27.2% 505 65s Cutting planes: Gomory: 6 MIR: 33 Zero half: 6 Explored 576 nodes (295041 simplex iterations) in 69.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.231738034515e-01, best bound 1.231738034515e-01, gap 0.0%