Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:45:35 2013 Optimize a model with 20320 rows, 44060 columns and 148100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.39s Presolved: 20300 rows, 44040 columns, 128080 nonzeros Variable types: 24040 continuous, 20000 integer (20000 binary) Root relaxation: objective 3.573401e+04, 556 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35734.0139 0 6 - 35734.0139 - - 2s 0 0 35799.1638 0 9 - 35799.1638 - - 2s 0 0 35805.7393 0 7 - 35805.7393 - - 2s 0 0 35810.7300 0 7 - 35810.7300 - - 2s 0 0 35811.1903 0 7 - 35811.1903 - - 2s 0 0 35813.4697 0 9 - 35813.4697 - - 3s 0 0 35814.8444 0 8 - 35814.8444 - - 3s 0 0 35819.1120 0 9 - 35819.1120 - - 3s 0 0 35819.2564 0 11 - 35819.2564 - - 3s 0 0 35820.1557 0 9 - 35820.1557 - - 4s 0 0 35822.2015 0 10 - 35822.2015 - - 4s 0 0 35822.3848 0 14 - 35822.3848 - - 4s 0 0 35822.9623 0 12 - 35822.9623 - - 4s 0 0 35822.9785 0 12 - 35822.9785 - - 4s 0 0 35822.9871 0 12 - 35822.9871 - - 5s 0 0 35822.9871 0 12 - 35822.9871 - - 5s H 0 0 36960.268836 35822.9871 3.08% - 6s 0 2 35822.9871 0 12 36960.2688 35822.9871 3.08% - 6s * 35 9 18 36178.148620 36065.8742 0.31% 26.3 8s * 54 5 16 36173.474085 36173.4739 0.00% 19.2 9s Cutting planes: Gomory: 6 Implied bound: 92 Flow cover: 4 Explored 55 nodes (2314 simplex iterations) in 9.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.617347408487e+04, best bound 3.617347387148e+04, gap 0.0000%