Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:30:59 2013 Optimize a model with 95157 rows, 94187 columns and 376457 nonzeros Presolve removed 4248 rows and 0 columns Presolve time: 0.69s Presolved: 90909 rows, 94187 columns, 367961 nonzeros Variable types: 94090 continuous, 97 integer (97 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20480 1.1863725e+05 5.116127e+03 0.000000e+00 5s 22998 1.2033878e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.203388e+05, 22998 iterations, 6.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 120338.783 0 4 - 120338.783 - - 7s H 0 0 123349.00000 120338.783 2.44% - 7s H 0 0 121198.00000 120338.783 0.71% - 7s 0 0 120339.516 0 5 121198.000 120339.516 0.71% - 8s 0 0 120339.516 0 4 121198.000 120339.516 0.71% - 13s 0 0 120339.552 0 5 121198.000 120339.552 0.71% - 14s 0 0 120339.552 0 5 121198.000 120339.552 0.71% - 14s 0 2 120342.265 0 5 121198.000 120342.265 0.71% - 16s H 6 6 121185.00000 120403.543 0.64% 51.5 16s H 8 8 121163.23077 120403.543 0.63% 50.4 17s H 9 9 120674.00000 120403.543 0.22% 47.8 17s H 10 10 120668.00000 120403.543 0.22% 43.3 17s H 25 11 120529.00000 120410.827 0.10% 67.7 18s * 26 10 7 120483.00000 120410.827 0.06% 67.1 18s * 52 1 13 120470.00000 120470.000 0.0% 55.0 19s Cutting planes: Gomory: 1 Flow cover: 3 Explored 53 nodes (36689 simplex iterations) in 19.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.204700000000e+05, best bound 1.204700000000e+05, gap 0.0%