Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:18:10 2013 Optimize a model with 800 rows, 25350 columns and 50950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.25s Presolved: 750 rows, 25300 columns, 50750 nonzeros Variable types: 25250 continuous, 50 integer (50 binary) Root relaxation: objective 1.824192e+05, 1946 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 182419.206 0 1 - 182419.206 - - 0s H 0 0 183912.50168 182419.206 0.81% - 0s 0 0 182445.503 0 2 183912.502 182445.503 0.80% - 0s 0 0 182459.949 0 2 183912.502 182459.949 0.79% - 0s 0 0 182475.587 0 2 183912.502 182475.587 0.78% - 0s 0 0 182486.375 0 2 183912.502 182486.375 0.78% - 0s 0 0 182493.176 0 2 183912.502 182493.176 0.77% - 0s 0 0 182498.247 0 2 183912.502 182498.247 0.77% - 0s 0 0 182499.387 0 2 183912.502 182499.387 0.77% - 0s 0 0 182502.100 0 2 183912.502 182502.100 0.77% - 1s 0 0 182502.100 0 2 183912.502 182502.100 0.77% - 1s 0 0 182506.222 0 2 183912.502 182506.222 0.76% - 1s 0 0 182506.222 0 2 183912.502 182506.222 0.76% - 1s 0 0 182508.908 0 2 183912.502 182508.908 0.76% - 1s 0 0 182508.908 0 2 183912.502 182508.908 0.76% - 1s 0 2 182514.337 0 2 183912.502 182514.337 0.76% - 1s * 7 3 5 183438.52172 182701.496 0.40% 111 1s * 12 2 4 182845.28394 182768.689 0.04% 79.8 1s Cutting planes: Flow cover: 17 Explored 15 nodes (3542 simplex iterations) in 1.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.828452839414e+05, best bound 1.828452839414e+05, gap 0.0%