Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:14:46 2013 Optimize a model with 27664 rows, 27144 columns and 108264 nonzeros Presolve removed 52 rows and 0 columns Presolve time: 0.12s Presolved: 27612 rows, 27144 columns, 108212 nonzeros Variable types: 27092 continuous, 52 integer (52 binary) Root relaxation: objective 4.885465e+04, 3867 iterations, 1.62 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 48854.6503 0 48 - 48854.6503 - - 1s H 0 0 67944.000000 48854.6503 28.1% - 2s 0 0 57958.5515 0 6 67944.0000 57958.5515 14.7% - 4s H 0 0 64988.654499 57958.5515 10.8% - 4s H 0 0 61556.000000 57958.5515 5.84% - 4s 0 0 58748.7228 0 3 61556.0000 58748.7228 4.56% - 5s H 0 0 60003.566777 58748.7228 2.09% - 5s H 0 0 59703.000000 58748.7228 1.60% - 5s H 0 0 59466.000000 58748.7228 1.21% - 5s H 0 0 58808.000000 58748.7228 0.10% - 5s 0 1 58801.7059 0 1 58808.0000 58801.7059 0.01% - 5s Cutting planes: Gomory: 2 Implied bound: 48 Explored 2 nodes (6897 simplex iterations) in 5.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.880800000000e+04, best bound 5.880800000000e+04, gap 0.0%