Gurobi 5.6.3 (linux64) logging started Wed Oct 8 03:29:43 2014 Optimize a model with 45369 rows, 45157 columns and 179988 nonzeros Presolve time: 1.28s Presolved: 45369 rows, 45157 columns, 179988 nonzeros Variable types: 1 continuous, 45156 integer (45156 binary) Found heuristic solution: objective 0.8556008 Found heuristic solution: objective 0.8536099 Found heuristic solution: objective 0.7343061 Root relaxation: objective 8.361002e-02, 10277 iterations, 3.59 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08361 0 1862 0.73431 0.08361 88.6% - 6s H 0 0 0.1433293 0.08361 41.7% - 13s 0 0 0.08596 0 1683 0.14333 0.08596 40.0% - 17s 0 0 0.08596 0 1702 0.14333 0.08596 40.0% - 18s 0 0 0.08612 0 1668 0.14333 0.08612 39.9% - 19s 0 0 0.08613 0 1740 0.14333 0.08613 39.9% - 19s 0 0 0.08642 0 1679 0.14333 0.08642 39.7% - 19s 0 0 0.08643 0 1682 0.14333 0.08643 39.7% - 19s 0 0 0.08643 0 1640 0.14333 0.08643 39.7% - 20s 0 0 0.08643 0 1637 0.14333 0.08643 39.7% - 20s 0 0 0.08643 0 1638 0.14333 0.08643 39.7% - 20s 0 0 0.08643 0 1638 0.14333 0.08643 39.7% - 20s 0 2 0.08643 0 1638 0.14333 0.08643 39.7% - 21s H 81 79 0.1410774 0.08781 37.8% 322 24s * 82 80 43 0.1410187 0.08781 37.7% 323 24s 86 78 0.13545 42 346 0.14102 0.08781 37.7% 314 25s H 108 92 0.1371369 0.08783 36.0% 311 25s * 135 107 32 0.1354020 0.08783 35.1% 276 26s * 162 128 19 0.1352592 0.08783 35.1% 269 26s H 166 117 0.1334805 0.08783 34.2% 263 26s * 197 144 16 0.1334509 0.08784 34.2% 260 27s * 214 150 12 0.1332236 0.08790 34.0% 259 27s * 215 147 11 0.1327459 0.08790 33.8% 258 27s H 220 142 0.1323005 0.08816 33.4% 277 28s H 247 151 0.1294132 0.08879 31.4% 273 29s 255 143 infeasible 8 0.12941 0.08979 30.6% 298 30s * 279 139 15 0.1291244 0.09059 29.8% 320 31s 325 91 cutoff 16 0.12912 0.10281 20.4% 370 35s Cutting planes: Gomory: 2 MIR: 111 Zero half: 8 Mod-K: 2 Explored 612 nodes (187572 simplex iterations) in 38.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.291243618350e-01, best bound 1.291243618350e-01, gap 0.0%