Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:48:43 2013 Optimize a model with 66501 rows, 65691 columns and 262521 nonzeros Presolve removed 2972 rows and 0 columns Presolve time: 0.43s Presolved: 63529 rows, 65691 columns, 256577 nonzeros Variable types: 65610 continuous, 81 integer (81 binary) Root relaxation: objective 1.004030e+05, 16404 iterations, 3.62 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 100402.955 0 4 - 100402.955 - - 4s H 0 0 101529.00000 100402.955 1.11% - 4s 0 0 100403.982 0 5 101529.000 100403.982 1.11% - 4s 0 0 100404.668 0 5 101529.000 100404.668 1.11% - 5s H 0 0 100985.00000 100404.668 0.57% - 6s 0 0 100404.668 0 4 100985.000 100404.668 0.57% - 10s 0 0 100404.668 0 5 100985.000 100404.668 0.57% - 11s 0 0 100405.202 0 5 100985.000 100405.202 0.57% - 11s 0 2 100408.815 0 5 100985.000 100408.815 0.57% - 13s H 8 6 100740.56338 100588.916 0.15% 241 14s * 9 4 7 100682.00000 100588.916 0.09% 225 14s Cutting planes: Gomory: 1 Flow cover: 7 Explored 15 nodes (27492 simplex iterations) in 14.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.006820000000e+05, best bound 1.006820000000e+05, gap 0.0%