Gurobi 5.6.3 (linux64) logging started Wed Oct 8 04:04:25 2014 Optimize a model with 48400 rows, 48181 columns and 192063 nonzeros Presolve time: 1.36s Presolved: 48400 rows, 48181 columns, 192063 nonzeros Variable types: 1 continuous, 48180 integer (48180 binary) Found heuristic solution: objective 0.9607804 Found heuristic solution: objective 0.9557227 Found heuristic solution: objective 0.7048338 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 10262 8.4349027e-02 3.755698e+03 0.000000e+00 5s 11117 8.4407411e-02 0.000000e+00 0.000000e+00 6s Root relaxation: objective 8.440741e-02, 11117 iterations, 6.33 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08441 0 2052 0.70483 0.08441 88.0% - 9s H 0 0 0.1389740 0.08441 39.3% - 15s 0 0 0.09535 0 1299 0.13897 0.09535 31.4% - 22s 0 0 0.09535 0 1305 0.13897 0.09535 31.4% - 24s 0 0 0.09619 0 1426 0.13897 0.09619 30.8% - 24s 0 0 0.09686 0 1309 0.13897 0.09686 30.3% - 25s 0 0 0.09707 0 1322 0.13897 0.09707 30.2% - 25s 0 0 0.09723 0 1382 0.13897 0.09723 30.0% - 25s 0 0 0.09794 0 1370 0.13897 0.09794 29.5% - 25s 0 0 0.09795 0 1346 0.13897 0.09795 29.5% - 25s 0 0 0.09800 0 1394 0.13897 0.09800 29.5% - 25s 0 0 0.09810 0 1383 0.13897 0.09810 29.4% - 25s 0 0 0.09811 0 1427 0.13897 0.09811 29.4% - 26s 0 0 0.09811 0 1298 0.13897 0.09811 29.4% - 26s 0 2 0.09816 0 1298 0.13897 0.09816 29.4% - 26s H 27 27 0.1380748 0.09853 28.6% 480 27s H 55 40 0.1363645 0.09853 27.7% 321 28s H 109 58 0.1359846 0.10098 25.7% 300 29s 121 48 infeasible 3 0.13598 0.11004 19.1% 308 30s Cutting planes: Gomory: 3 MIR: 93 Zero half: 12 Explored 170 nodes (84909 simplex iterations) in 30.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.359845566165e-01, best bound 1.359845566165e-01, gap 0.0%