Gurobi 5.6.3 (linux64) logging started Tue Oct 7 23:05:18 2014 Optimize a model with 18225 rows, 18091 columns and 71958 nonzeros Presolve time: 0.36s Presolved: 18225 rows, 18091 columns, 71958 nonzeros Variable types: 1 continuous, 18090 integer (18090 binary) Found heuristic solution: objective 1.1269395 Found heuristic solution: objective 1.1100276 Found heuristic solution: objective 1.0890961 Root relaxation: objective 1.081568e-01, 6045 iterations, 1.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.10816 0 1261 1.08910 0.10816 90.1% - 1s H 0 0 0.2820652 0.10816 61.7% - 1s 0 0 0.10919 0 1191 0.28207 0.10919 61.3% - 3s 0 0 0.10919 0 1260 0.28207 0.10919 61.3% - 4s H 0 0 0.2788507 0.10919 60.8% - 4s H 0 0 0.2712945 0.10919 59.8% - 4s 0 0 0.10972 0 1208 0.27129 0.10972 59.6% - 4s 0 0 0.11008 0 1228 0.27129 0.11008 59.4% - 5s 0 0 0.11010 0 1266 0.27129 0.11010 59.4% - 5s 0 0 0.11010 0 1238 0.27129 0.11010 59.4% - 5s H 0 0 0.2645040 0.11010 58.4% - 6s H 0 0 0.1898405 0.11010 42.0% - 7s 0 2 0.11305 0 1067 0.18984 0.11305 40.4% - 7s * 103 103 56 0.1849326 0.11469 38.0% 224 9s 107 100 0.11628 3 948 0.18493 0.11470 38.0% 222 10s * 152 143 32 0.1845797 0.11470 37.9% 214 10s * 154 133 32 0.1840602 0.11470 37.7% 211 10s H 275 222 0.1838883 0.11485 37.5% 186 12s H 302 243 0.1822021 0.11521 36.8% 186 12s * 323 254 13 0.1806386 0.11524 36.2% 185 12s * 336 255 15 0.1789382 0.11607 35.1% 185 12s H 352 250 0.1753021 0.11607 33.8% 182 13s H 352 246 0.1730561 0.11607 32.9% 182 13s * 356 242 19 0.1723525 0.11607 32.7% 181 13s 423 184 infeasible 10 0.17235 0.12739 26.1% 199 15s Cutting planes: Gomory: 5 Explored 608 nodes (113394 simplex iterations) in 15.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.723524722901e-01, best bound 1.723524722901e-01, gap 0.0%