Gurobi 5.6.3 (linux64) logging started Wed Oct 8 03:58:35 2014 Optimize a model with 47961 rows, 47743 columns and 190314 nonzeros Presolve time: 1.35s Presolved: 47961 rows, 47743 columns, 190314 nonzeros Variable types: 1 continuous, 47742 integer (47742 binary) Found heuristic solution: objective 0.9489067 Found heuristic solution: objective 0.9384021 Found heuristic solution: objective 0.8727945 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9069 8.3959476e-02 4.049444e-01 0.000000e+00 5s 9151 8.3781930e-02 0.000000e+00 0.000000e+00 5s Root relaxation: objective 8.378193e-02, 9151 iterations, 5.27 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08378 0 2144 0.87279 0.08378 90.4% - 8s H 0 0 0.1381543 0.08378 39.4% - 16s 0 0 0.08772 0 1640 0.13815 0.08772 36.5% - 21s 0 0 0.08772 0 1642 0.13815 0.08772 36.5% - 22s 0 0 0.08987 0 1620 0.13815 0.08987 35.0% - 23s 0 0 0.09088 0 1587 0.13815 0.09088 34.2% - 23s 0 0 0.09095 0 1631 0.13815 0.09095 34.2% - 23s 0 0 0.09122 0 1603 0.13815 0.09122 34.0% - 23s 0 0 0.09133 0 1632 0.13815 0.09133 33.9% - 23s 0 0 0.09137 0 1665 0.13815 0.09137 33.9% - 24s 0 0 0.09137 0 1647 0.13815 0.09137 33.9% - 24s 0 0 0.09137 0 1654 0.13815 0.09137 33.9% - 24s 0 0 0.09137 0 1507 0.13815 0.09137 33.9% - 24s 0 0 0.09138 0 1478 0.13815 0.09138 33.9% - 24s 0 0 0.09138 0 1484 0.13815 0.09138 33.9% - 25s 0 0 0.09138 0 1482 0.13815 0.09138 33.9% - 25s 0 2 0.09138 0 1481 0.13815 0.09138 33.9% - 25s * 36 36 19 0.1372419 0.09259 32.5% 513 27s * 49 35 25 0.1371905 0.09259 32.5% 409 28s H 81 61 0.1347709 0.09279 31.1% 347 28s 134 67 infeasible 7 0.13477 0.09287 31.1% 303 30s * 197 78 18 0.1344407 0.09463 29.6% 322 32s H 218 70 0.1327370 0.09616 27.6% 340 33s 270 18 cutoff 14 0.13274 0.11656 12.2% 337 35s Cutting planes: Gomory: 2 MIR: 31 Zero half: 10 Mod-K: 1 Explored 289 nodes (127641 simplex iterations) in 35.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.327369952977e-01, best bound 1.327369952977e-01, gap 0.0%