Gurobi 5.6.3 (linux64) logging started Wed Oct 8 02:10:42 2014 Optimize a model with 38025 rows, 37831 columns and 150738 nonzeros Presolve time: 1.10s Presolved: 38025 rows, 37831 columns, 150738 nonzeros Variable types: 1 continuous, 37830 integer (37830 binary) Found heuristic solution: objective 0.7932253 Found heuristic solution: objective 0.7903449 Found heuristic solution: objective 0.7586477 Root relaxation: objective 8.710247e-02, 9740 iterations, 2.93 seconds Total elapsed time = 5.04s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08710 0 1743 0.75865 0.08710 88.5% - 5s H 0 0 0.1490084 0.08710 41.5% - 9s 0 0 0.09008 0 1399 0.14901 0.09008 39.5% - 12s 0 0 0.09008 0 1410 0.14901 0.09008 39.5% - 13s 0 0 0.09019 0 1392 0.14901 0.09019 39.5% - 13s 0 0 0.09092 0 1405 0.14901 0.09092 39.0% - 14s 0 0 0.09105 0 1382 0.14901 0.09105 38.9% - 14s 0 0 0.09105 0 1384 0.14901 0.09105 38.9% - 14s 0 0 0.09105 0 1305 0.14901 0.09105 38.9% - 14s 0 0 0.09105 0 1332 0.14901 0.09105 38.9% - 14s 0 0 0.09105 0 1330 0.14901 0.09105 38.9% - 14s 0 2 0.09105 0 1329 0.14901 0.09105 38.9% - 15s H 54 54 0.1475707 0.09187 37.7% 253 16s * 81 76 47 0.1473332 0.09187 37.6% 204 16s H 113 95 0.1435088 0.09274 35.4% 208 17s H 141 115 0.1433458 0.09274 35.3% 184 17s * 163 127 15 0.1425996 0.09278 34.9% 185 18s H 168 124 0.1403539 0.09324 33.6% 187 18s H 195 145 0.1393837 0.09324 33.1% 175 18s * 209 151 8 0.1376488 0.09324 32.3% 178 18s * 217 149 6 0.1375145 0.09355 32.0% 183 18s H 223 143 0.1374799 0.09377 31.8% 186 19s * 226 146 8 0.1360401 0.09378 31.1% 189 19s 239 133 infeasible 9 0.13604 0.09608 29.4% 214 20s Cutting planes: Gomory: 2 MIR: 58 Zero half: 3 Explored 373 nodes (102129 simplex iterations) in 21.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.360401243537e-01, best bound 1.360401243537e-01, gap 0.0%