Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:22:36 2013 Optimize a model with 69886 rows, 69056 columns and 275726 nonzeros Presolve removed 83 rows and 0 columns Presolve time: 0.32s Presolved: 69803 rows, 69056 columns, 275643 nonzeros Variable types: 68973 continuous, 83 integer (83 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7133 6.9137030e+04 1.491052e+04 0.000000e+00 5s 8477 6.9479939e+04 0.000000e+00 0.000000e+00 8s Root relaxation: objective 6.947994e+04, 8477 iterations, 8.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 69479.9389 0 66 - 69479.9389 - - 8s H 0 0 123546.00000 69479.9389 43.8% - 16s 0 0 94473.3348 0 14 123546.000 94473.3348 23.5% - 29s H 0 0 119294.44613 94473.3348 20.8% - 29s H 0 0 103377.00000 94473.3348 8.61% - 29s 0 0 96126.5808 0 6 103377.000 96126.5808 7.01% - 32s 0 0 96463.9837 0 3 103377.000 96463.9837 6.69% - 33s H 0 0 100228.47976 96463.9837 3.76% - 33s H 0 0 99588.000000 96463.9837 3.14% - 33s 0 0 96496.3877 0 3 99588.0000 96496.3877 3.10% - 34s H 0 0 99554.000000 96496.3877 3.07% - 34s 0 0 96570.8439 0 5 99554.0000 96570.8439 3.00% - 34s H 0 0 96627.000000 96570.8439 0.06% - 35s 0 0 96606.5712 0 4 96627.0000 96606.5712 0.02% - 36s 0 0 96606.5712 0 53 96627.0000 96606.5712 0.02% - 44s 0 0 96606.5712 0 12 96627.0000 96606.5712 0.02% - 78s 0 0 96606.5712 0 8 96627.0000 96606.5712 0.02% - 81s 0 0 96606.5712 0 6 96627.0000 96606.5712 0.02% - 84s 0 0 96606.5712 0 4 96627.0000 96606.5712 0.02% - 84s 0 0 96607.2467 0 3 96627.0000 96607.2467 0.02% - 85s 0 2 96608.5667 0 3 96627.0000 96608.5667 0.02% - 86s Cutting planes: Implied bound: 67 Explored 2 nodes (37486 simplex iterations) in 86.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.662700000000e+04, best bound 9.662071847570e+04, gap 0.0065%