Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:43:24 2013 Optimize a model with 91295 rows, 90345 columns and 361095 nonzeros Presolve removed 4362 rows and 0 columns Presolve time: 0.63s Presolved: 86933 rows, 90345 columns, 352371 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19013 1.1747843e+05 1.430848e+03 0.000000e+00 5s 19669 1.1761238e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.176124e+05, 19669 iterations, 5.40 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 117612.376 0 2 - 117612.376 - - 6s H 0 0 118212.00000 117612.376 0.51% - 6s 0 0 117612.871 0 3 118212.000 117612.871 0.51% - 7s 0 0 117612.871 0 2 118212.000 117612.871 0.51% - 14s 0 0 117613.071 0 3 118212.000 117613.071 0.51% - 15s 0 0 117613.197 0 3 118212.000 117613.197 0.51% - 15s 0 0 117613.247 0 4 118212.000 117613.247 0.51% - 16s 0 2 117613.649 0 4 118212.000 117613.649 0.51% - 19s 1 4 117702.853 1 3 118212.000 117702.853 0.43% 420 20s H 3 3 118179.96274 117717.300 0.39% 249 20s H 5 4 118175.25977 117729.386 0.38% 298 21s * 27 10 25 118008.00000 117729.386 0.24% 128 23s * 32 0 10 117952.00000 117952.000 0.0% 138 24s Cutting planes: Gomory: 1 Flow cover: 8 Explored 33 nodes (34534 simplex iterations) in 24.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.179520000000e+05, best bound 1.179520000000e+05, gap 0.0%