Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:11:25 2013 Optimize a model with 82080 rows, 81180 columns and 324180 nonzeros Presolve removed 90 rows and 0 columns Presolve time: 0.39s Presolved: 81990 rows, 81180 columns, 324090 nonzeros Variable types: 81090 continuous, 90 integer (90 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8399 7.7174441e+04 2.808207e+04 0.000000e+00 5s 10355 7.8709642e+04 1.573747e+04 0.000000e+00 10s 11810 7.9102830e+04 0.000000e+00 0.000000e+00 14s Root relaxation: objective 7.910283e+04, 11810 iterations, 14.36 seconds Total elapsed time = 15.19s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 79102.8299 0 68 - 79102.8299 - - 15s H 0 0 145375.00000 79102.8299 45.6% - 22s 0 0 102842.883 0 20 145375.000 102842.883 29.3% - 43s H 0 0 130846.00000 102842.883 21.4% - 45s 0 0 109691.971 0 9 130846.000 109691.971 16.2% - 53s H 0 0 129857.00000 109691.971 15.5% - 53s 0 0 111873.170 0 5 129857.000 111873.170 13.8% - 57s H 0 0 120460.99061 111873.170 7.13% - 57s H 0 0 118792.00000 111873.170 5.82% - 57s 0 0 111975.477 0 4 118792.000 111975.477 5.74% - 58s H 0 0 115070.01299 111975.477 2.69% - 60s 0 2 111979.405 0 4 115070.013 111979.405 2.69% - 62s H 4 4 113244.40541 112158.786 0.96% 343 63s H 8 7 112378.87195 112158.786 0.20% 355 65s H 9 6 112373.50299 112158.786 0.19% 366 65s * 12 6 9 112362.00000 112158.786 0.18% 284 65s * 18 1 8 112284.00000 112284.000 0.0% 283 66s Cutting planes: Implied bound: 88 Explored 19 nodes (35044 simplex iterations) in 66.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.122840000000e+05, best bound 1.122840000000e+05, gap 0.0%