Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:44:36 2013 Optimize a model with 73270 rows, 72420 columns and 289170 nonzeros Presolve removed 85 rows and 0 columns Presolve time: 0.34s Presolved: 73185 rows, 72420 columns, 289085 nonzeros Variable types: 72335 continuous, 85 integer (85 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7847 7.1065913e+04 6.056714e+04 0.000000e+00 5s 9357 7.1463864e+04 0.000000e+00 0.000000e+00 8s Root relaxation: objective 7.146386e+04, 9357 iterations, 8.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 71463.8638 0 61 - 71463.8638 - - 9s H 0 0 117230.00000 71463.8638 39.0% - 13s H 0 0 97770.000000 71463.8638 26.9% - 51s 0 0 86397.2824 0 24 97770.0000 86397.2824 11.6% - 67s 0 0 91052.4348 0 13 97770.0000 91052.4348 6.87% - 73s 0 0 92279.8713 0 8 97770.0000 92279.8713 5.62% - 76s 0 0 92481.7353 0 4 97770.0000 92481.7353 5.41% - 77s H 0 0 97720.196895 92481.7353 5.36% - 77s H 0 0 96846.000000 92481.7353 4.51% - 77s H 0 0 93303.000000 92481.7353 0.88% - 78s 0 2 92486.7443 0 4 93303.0000 92486.7443 0.87% - 79s 1 3 92706.6542 1 6 93303.0000 92662.6602 0.69% 533 80s H 7 7 92976.934426 92729.4556 0.27% 277 81s H 8 6 92896.490231 92729.4556 0.18% 254 81s H 15 8 92879.238095 92729.4556 0.16% 225 83s * 18 8 15 92825.000000 92729.4556 0.10% 234 83s 26 7 92794.0000 9 1 92825.0000 92740.8535 0.09% 211 85s Cutting planes: Implied bound: 85 Explored 47 nodes (30784 simplex iterations) in 86.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.282500000000e+04, best bound 9.282500000000e+04, gap 0.0%