Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:25:22 2013 Optimize a model with 968 rows, 77528 columns and 154968 nonzeros Presolve time: 0.13s Presolved: 968 rows, 77528 columns, 154968 nonzeros Variable types: 77440 continuous, 88 integer (88 binary) Root relaxation: objective 8.557110e+04, 2539 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 85571.1020 0 6 - 85571.1020 - - 0s H 0 0 91351.000000 85571.1020 6.33% - 0s H 0 0 85732.000000 85571.1020 0.19% - 0s 0 0 85686.9617 0 3 85732.0000 85686.9617 0.05% - 0s 0 0 85686.9617 0 6 85732.0000 85686.9617 0.05% - 0s 0 0 85686.9617 0 3 85732.0000 85686.9617 0.05% - 1s 0 0 85698.5692 0 2 85732.0000 85698.5692 0.04% - 1s 0 0 85699.5881 0 2 85732.0000 85699.5881 0.04% - 1s 0 0 85699.5881 0 2 85732.0000 85699.5881 0.04% - 1s 0 0 85699.5881 0 2 85732.0000 85699.5881 0.04% - 1s 0 0 85699.5881 0 2 85732.0000 85699.5881 0.04% - 1s 0 0 85699.8506 0 2 85732.0000 85699.8506 0.04% - 1s 0 0 85700.8590 0 3 85732.0000 85700.8590 0.04% - 1s 0 0 85701.5810 0 3 85732.0000 85701.5810 0.04% - 1s 0 0 85702.5584 0 2 85732.0000 85702.5584 0.03% - 1s 0 0 85702.5584 0 2 85732.0000 85702.5584 0.03% - 1s 0 0 85702.8554 0 2 85732.0000 85702.8554 0.03% - 1s 0 0 85713.3997 0 4 85732.0000 85713.3997 0.02% - 1s 0 0 cutoff 0 85732.0000 85732.0000 0.0% - 1s Cutting planes: Implied bound: 45 Flow cover: 1 Explored 0 nodes (4371 simplex iterations) in 1.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.573200000000e+04, best bound 8.573200000000e+04, gap 0.0%