Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:27:44 2013 Optimize a model with 71568 rows, 70728 columns and 282408 nonzeros Presolve removed 84 rows and 0 columns Presolve time: 0.33s Presolved: 71484 rows, 70728 columns, 282324 nonzeros Variable types: 70644 continuous, 84 integer (84 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8076 7.2615286e+04 1.062523e+04 0.000000e+00 5s 9610 7.3214848e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.321485e+04, 9610 iterations, 9.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 73214.8482 0 69 - 73214.8482 - - 9s H 0 0 149821.00000 73214.8482 51.1% - 22s 0 0 101018.349 0 15 149821.000 101018.349 32.6% - 42s H 0 0 137846.30283 101018.349 26.7% - 42s H 0 0 121929.00000 101018.349 17.1% - 43s 0 0 108896.395 0 7 121929.000 108896.395 10.7% - 46s H 0 0 116593.68015 108896.395 6.60% - 46s H 0 0 114748.00000 108896.395 5.10% - 46s 0 0 109075.544 0 4 114748.000 109075.544 4.94% - 46s H 0 0 112662.71396 109075.544 3.18% - 46s H 0 0 111668.00000 109075.544 2.32% - 46s H 0 0 110884.00000 109075.544 1.63% - 47s 0 2 109084.461 0 4 110884.000 109084.461 1.62% - 48s H 3 3 109861.65728 109222.356 0.58% 179 49s H 4 4 109589.00000 109222.356 0.33% 179 49s H 7 6 109547.85714 109222.356 0.30% 217 49s H 8 6 109507.66076 109222.356 0.26% 200 50s H 9 6 109454.78740 109222.356 0.21% 198 50s * 15 6 12 109419.00000 109222.356 0.18% 154 50s * 20 8 6 109332.00000 109244.541 0.08% 144 51s Cutting planes: Gomory: 1 Implied bound: 82 Explored 30 nodes (26119 simplex iterations) in 51.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.093320000000e+05, best bound 1.093320000000e+05, gap 0.0%