Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:40:51 2013 Optimize a model with 935 rows, 72335 columns and 144585 nonzeros Presolve time: 0.11s Presolved: 935 rows, 72335 columns, 144585 nonzeros Variable types: 72250 continuous, 85 integer (85 binary) Root relaxation: objective 1.114333e+05, 3512 iterations, 0.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 111433.275 0 7 - 111433.275 - - 0s H 0 0 119540.00000 111433.275 6.78% - 0s H 0 0 112527.00000 111433.275 0.97% - 0s 0 0 111874.975 0 5 112527.000 111874.975 0.58% - 0s 0 0 111882.026 0 5 112527.000 111882.026 0.57% - 0s 0 0 111882.026 0 7 112527.000 111882.026 0.57% - 1s 0 0 111882.026 0 5 112527.000 111882.026 0.57% - 1s 0 0 111882.026 0 5 112527.000 111882.026 0.57% - 1s 0 0 111885.593 0 4 112527.000 111885.593 0.57% - 1s 0 0 111887.063 0 4 112527.000 111887.063 0.57% - 1s 0 0 111887.063 0 4 112527.000 111887.063 0.57% - 1s 0 0 111887.338 0 3 112527.000 111887.338 0.57% - 1s 0 0 111887.338 0 3 112527.000 111887.338 0.57% - 1s 0 2 111903.613 0 3 112527.000 111903.613 0.55% - 2s H 12 7 112520.00000 112110.612 0.36% 67.5 2s H 15 9 112467.00000 112110.612 0.32% 58.5 2s * 16 9 14 112427.00000 112110.612 0.28% 56.4 2s * 23 10 6 112402.00000 112129.389 0.24% 67.5 3s Cutting planes: Implied bound: 143 Flow cover: 10 Explored 37 nodes (9814 simplex iterations) in 3.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.124020000000e+05, best bound 1.123994285714e+05, gap 0.0023%