Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:29:49 2012 Optimize a model with 2190 rows, 2160 columns and 7155 nonzeros Presolve removed 97 rows and 59 columns Presolve time: 0.02s Presolved: 2093 rows, 2101 columns, 6925 nonzeros Variable types: 1400 continuous, 701 integer (701 binary) Root relaxation: objective 1.901092e+05, 1023 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 190109.185 0 331 - 190109.185 - - 0s H 0 0 306865.00000 190109.185 38.0% - 0s H 0 0 305933.00000 190109.185 37.9% - 0s 0 0 230196.049 0 56 305933.000 230196.049 24.8% - 0s H 0 0 253434.45572 230196.049 9.17% - 0s 0 0 231184.959 0 22 253434.456 231184.959 8.78% - 0s H 0 0 240878.51683 231184.959 4.02% - 0s 0 0 231345.252 0 6 240878.517 231345.252 3.96% - 0s H 0 0 234092.57637 231345.252 1.17% - 0s 0 0 231350.471 0 1 234092.576 231350.471 1.17% - 0s H 0 0 231424.00000 231350.471 0.03% - 0s 0 0 231350.471 0 254 231424.000 231350.471 0.03% - 0s 0 0 231350.471 0 8 231424.000 231350.471 0.03% - 0s 0 0 231350.471 0 1 231424.000 231350.471 0.03% - 0s 0 2 231350.733 0 1 231424.000 231350.733 0.03% - 0s H 3 3 231399.00000 231356.265 0.02% 0.7 0s * 4 2 4 231374.00000 231374.000 0.0% 1.0 0s Cutting planes: Gomory: 15 Cover: 2 Implied bound: 3 Flow cover: 122 Flow path: 110 Explored 5 nodes (2539 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.313740000000e+05, best bound 2.313740000000e+05, gap 0.0000%