Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:59:02 2013 Optimize a model with 2000 rows, 102100 columns and 206700 nonzeros Presolve removed 100 rows and 700 columns Presolve time: 0.22s Presolved: 1900 rows, 101400 columns, 205700 nonzeros Variable types: 101100 continuous, 300 integer (300 binary) Root relaxation: objective 8.951303e+05, 6894 iterations, 0.56 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 895130.293 0 4 - 895130.293 - - 0s H 0 0 960175.85629 895130.293 6.77% - 1s 0 0 895191.950 0 4 960175.856 895191.950 6.77% - 1s 0 0 895215.672 0 4 960175.856 895215.672 6.77% - 1s 0 0 895240.714 0 4 960175.856 895240.714 6.76% - 2s 0 0 895245.668 0 4 960175.856 895245.668 6.76% - 2s 0 0 895247.135 0 4 960175.856 895247.135 6.76% - 2s 0 0 895249.291 0 4 960175.856 895249.291 6.76% - 2s 0 0 895256.110 0 4 960175.856 895256.110 6.76% - 2s 0 0 895256.778 0 4 960175.856 895256.778 6.76% - 2s 0 0 895257.330 0 4 960175.856 895257.330 6.76% - 3s 0 0 895259.524 0 4 960175.856 895259.524 6.76% - 3s 0 0 895260.208 0 4 960175.856 895260.208 6.76% - 3s 0 0 895260.664 0 4 960175.856 895260.664 6.76% - 3s 0 0 895260.723 0 4 960175.856 895260.723 6.76% - 4s 0 0 895260.999 0 4 960175.856 895260.999 6.76% - 4s 0 0 895261.040 0 4 960175.856 895261.040 6.76% - 4s 0 0 895261.040 0 4 960175.856 895261.040 6.76% - 5s 0 2 895262.054 0 4 960175.856 895262.054 6.76% - 5s H 27 8 897058.33532 895917.140 0.13% 45.0 8s 51 16 896788.047 51 2 897058.335 895917.140 0.13% 34.2 10s * 96 17 12 896949.94038 896471.884 0.05% 48.5 13s * 105 7 12 896634.43616 896546.546 0.01% 50.0 13s Cutting planes: Flow cover: 25 Explored 106 nodes (14123 simplex iterations) in 13.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.966344361626e+05, best bound 8.965465455964e+05, gap 0.0098%