Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:41:58 2013 Optimize a model with 91295 rows, 90345 columns and 361095 nonzeros Presolve removed 7814 rows and 0 columns Presolve time: 0.65s Presolved: 83481 rows, 90345 columns, 345467 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 18939 1.2743084e+05 3.677280e+02 0.000000e+00 5s 19284 1.2745429e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.274543e+05, 19284 iterations, 5.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 127454.289 0 4 - 127454.289 - - 6s H 0 0 129361.00000 127454.289 1.47% - 6s 0 0 127455.232 0 5 129361.000 127455.232 1.47% - 7s H 0 0 129212.00000 127455.232 1.36% - 9s 0 2 127466.224 0 5 129212.000 127466.224 1.35% - 11s H 2 2 128780.00000 127494.941 1.00% 44.5 12s H 5 5 127818.59091 127510.539 0.24% 224 13s H 9 9 127799.25806 127510.539 0.23% 146 14s * 11 9 10 127630.00000 127510.539 0.09% 130 14s 16 6 127549.864 4 2 127630.000 127549.864 0.06% 131 15s H 23 3 127603.07955 127569.825 0.03% 129 16s * 27 5 7 127588.00000 127569.825 0.01% 116 16s Cutting planes: Gomory: 2 Flow cover: 3 Explored 30 nodes (22449 simplex iterations) in 16.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.275880000000e+05, best bound 1.275761929825e+05, gap 0.0093%