Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:27:28 2013 Optimize a model with 95157 rows, 94187 columns and 376457 nonzeros Presolve removed 5089 rows and 0 columns Presolve time: 0.68s Presolved: 90068 rows, 94187 columns, 366279 nonzeros Variable types: 94090 continuous, 97 integer (97 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19376 1.3640399e+05 4.137210e+03 0.000000e+00 5s 20778 1.3700082e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.370008e+05, 20778 iterations, 6.14 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 137000.819 0 3 - 137000.819 - - 7s H 0 0 141194.00000 137000.819 2.97% - 7s H 0 0 137745.00000 137000.819 0.54% - 8s 0 0 137004.553 0 4 137745.000 137004.553 0.54% - 8s H 0 0 137599.00000 137004.553 0.43% - 9s 0 0 137004.695 0 6 137599.000 137004.695 0.43% - 9s 0 0 137004.695 0 6 137599.000 137004.695 0.43% - 9s 0 0 137005.994 0 6 137599.000 137005.994 0.43% - 10s 0 0 137005.994 0 6 137599.000 137005.994 0.43% - 11s 0 0 137005.994 0 3 137599.000 137005.994 0.43% - 18s 0 0 137006.485 0 4 137599.000 137006.485 0.43% - 19s 0 0 137007.677 0 6 137599.000 137007.677 0.43% - 20s 0 0 137007.677 0 6 137599.000 137007.677 0.43% - 20s 0 2 137010.268 0 6 137599.000 137010.268 0.43% - 22s 15 8 137417.769 14 1 137599.000 137216.890 0.28% 145 25s * 17 7 16 137456.00000 137216.890 0.17% 135 25s * 22 8 6 137447.00000 137247.846 0.14% 132 25s Cutting planes: Gomory: 1 Flow cover: 5 Explored 41 nodes (35072 simplex iterations) in 26.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.374470000000e+05, best bound 1.374470000000e+05, gap 0.0%