Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:25:20 2012 Optimize a model with 1095 rows, 1080 columns and 3554 nonzeros Presolve removed 101 rows and 60 columns Presolve time: 0.01s Presolved: 994 rows, 1020 columns, 3314 nonzeros Variable types: 679 continuous, 341 integer (341 binary) Root relaxation: objective 1.027207e+05, 513 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 102720.679 0 181 - 102720.679 - - 0s H 0 0 155625.00000 102720.679 34.0% - 0s 0 0 126810.747 0 35 155625.000 126810.747 18.5% - 0s 0 0 127502.425 0 38 155625.000 127502.425 18.1% - 0s 0 0 127634.054 0 10 155625.000 127634.054 18.0% - 0s H 0 0 128240.00000 127634.054 0.47% - 0s 0 0 127639.543 0 19 128240.000 127639.543 0.47% - 0s 0 2 127639.659 0 19 128240.000 127639.659 0.47% - 0s H 27 24 128000.00000 127644.335 0.28% 4.2 0s * 219 98 32 127811.00000 127675.607 0.11% 3.9 0s H 600 246 127802.00000 127690.809 0.09% 3.6 0s * 686 226 36 127794.00000 127724.832 0.05% 3.9 0s * 697 201 27 127745.00000 127745.000 0.0% 3.9 0s Cutting planes: Gomory: 4 Cover: 4 Implied bound: 1 Clique: 1 Flow cover: 35 Flow path: 15 Explored 698 nodes (3511 simplex iterations) in 0.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.277450000000e+05, best bound 1.277450000000e+05, gap 0.0000%