Gurobi 5.6.3 (linux64) logging started Wed Oct 8 01:23:52 2014 Optimize a model with 33124 rows, 32943 columns and 131225 nonzeros Presolve time: 0.87s Presolved: 33124 rows, 32943 columns, 131225 nonzeros Variable types: 1 continuous, 32942 integer (32942 binary) Found heuristic solution: objective 1.0157288 Found heuristic solution: objective 0.9926075 Found heuristic solution: objective 0.9913049 Root relaxation: objective 9.129673e-02, 9009 iterations, 2.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09130 0 1621 0.99130 0.09130 90.8% - 3s H 0 0 0.1669411 0.09130 45.3% - 9s 0 0 0.09566 0 1441 0.16694 0.09566 42.7% - 11s 0 0 0.09566 0 1438 0.16694 0.09566 42.7% - 12s 0 0 0.09623 0 1474 0.16694 0.09623 42.4% - 13s 0 0 0.09626 0 1467 0.16694 0.09626 42.3% - 13s 0 0 0.09632 0 1517 0.16694 0.09632 42.3% - 13s 0 0 0.09632 0 1478 0.16694 0.09632 42.3% - 13s 0 2 0.09632 0 1474 0.16694 0.09632 42.3% - 14s 9 11 0.09724 5 1502 0.16694 0.09712 41.8% 465 15s H 54 54 0.1589948 0.09788 38.4% 388 17s * 68 64 35 0.1579770 0.09788 38.0% 368 17s * 79 69 42 0.1573359 0.09788 37.8% 334 17s H 83 64 0.1570297 0.09788 37.7% 318 18s * 103 81 15 0.1565364 0.09789 37.5% 308 18s * 105 81 16 0.1564092 0.09789 37.4% 302 18s * 109 69 19 0.1494997 0.09789 34.5% 291 18s * 166 77 9 0.1493252 0.09802 34.4% 282 19s * 167 66 9 0.1489397 0.09802 34.2% 281 19s 172 61 infeasible 6 0.14894 0.09802 34.2% 287 20s 224 33 infeasible 22 0.14894 0.10706 28.1% 416 25s Cutting planes: Gomory: 2 MIR: 7 Mod-K: 1 Explored 258 nodes (126790 simplex iterations) in 25.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.489397351580e-01, best bound 1.489397351580e-01, gap 0.0%