Gurobi 5.6.3 (linux64) logging started Wed Oct 8 00:09:08 2014 Optimize a model with 24964 rows, 24807 columns and 98753 nonzeros Presolve time: 0.57s Presolved: 24964 rows, 24807 columns, 98753 nonzeros Variable types: 1 continuous, 24806 integer (24806 binary) Found heuristic solution: objective 0.9529185 Found heuristic solution: objective 0.9514643 Found heuristic solution: objective 0.8825195 Root relaxation: objective 9.928911e-02, 8141 iterations, 2.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09929 0 1431 0.88252 0.09929 88.7% - 3s H 0 0 0.8660302 0.09929 88.5% - 3s H 0 0 0.1699951 0.09929 41.6% - 6s 0 0 0.10672 0 1034 0.17000 0.10672 37.2% - 8s 0 0 0.10672 0 1084 0.17000 0.10672 37.2% - 9s 0 0 0.10675 0 1100 0.17000 0.10675 37.2% - 9s 0 0 0.10861 0 997 0.17000 0.10861 36.1% - 9s 0 0 0.10866 0 1012 0.17000 0.10866 36.1% - 9s 0 0 0.10870 0 1065 0.17000 0.10870 36.1% - 9s H 0 0 0.1684991 0.10870 35.5% - 9s 0 0 0.10913 0 1119 0.16850 0.10913 35.2% - 10s 0 0 0.10915 0 1145 0.16850 0.10915 35.2% - 10s 0 0 0.10918 0 1079 0.16850 0.10918 35.2% - 10s H 0 0 0.1676822 0.10918 34.9% - 10s 0 0 0.11016 0 1070 0.16768 0.11016 34.3% - 10s H 0 0 0.1669336 0.11016 34.0% - 10s 0 0 0.11102 0 1007 0.16693 0.11102 33.5% - 10s 0 0 0.11103 0 1054 0.16693 0.11103 33.5% - 10s 0 0 0.11103 0 1014 0.16693 0.11103 33.5% - 10s 0 2 0.11103 0 1014 0.16693 0.11103 33.5% - 11s H 27 27 0.1624240 0.11171 31.2% 325 11s * 42 42 24 0.1617958 0.11171 31.0% 260 11s * 45 39 26 0.1600496 0.11171 30.2% 243 11s * 46 30 26 0.1566252 0.11171 28.7% 238 11s Cutting planes: Gomory: 2 MIR: 48 Zero half: 3 Mod-K: 1 Explored 87 nodes (52804 simplex iterations) in 12.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.566252436790e-01, best bound 1.566252436790e-01, gap 0.0%