Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:04:46 2013 Optimize a model with 74992 rows, 74132 columns and 296012 nonzeros Presolve removed 86 rows and 0 columns Presolve time: 0.35s Presolved: 74906 rows, 74132 columns, 295926 nonzeros Variable types: 74046 continuous, 86 integer (86 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8565 7.1565605e+04 2.567293e+04 0.000000e+00 5s 10292 7.2085800e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.208580e+04, 10292 iterations, 9.44 seconds Total elapsed time = 10.17s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 72085.7997 0 64 - 72085.7997 - - 10s H 0 0 120542.00000 72085.7997 40.2% - 17s H 0 0 110208.00000 72085.7997 34.6% - 52s 0 0 89494.5848 0 22 110208.000 89494.5848 18.8% - 70s 0 0 98439.6686 0 9 110208.000 98439.6686 10.7% - 77s H 0 0 107692.00000 98439.6686 8.59% - 78s 0 0 99246.2491 0 4 107692.000 99246.2491 7.84% - 79s H 0 0 100368.00000 99246.2491 1.12% - 79s H 0 0 99600.000000 99246.2491 0.36% - 79s H 0 0 99435.000000 99246.2491 0.19% - 79s 0 0 99279.1228 0 2 99435.0000 99279.1228 0.16% - 80s 0 0 99279.1228 0 49 99435.0000 99279.1228 0.16% - 88s 0 0 99279.1228 0 12 99435.0000 99279.1228 0.16% - 101s 0 0 99279.1228 0 6 99435.0000 99279.1228 0.16% - 103s 0 0 99279.1228 0 2 99435.0000 99279.1228 0.16% - 104s 0 2 99280.6323 0 2 99435.0000 99280.6323 0.16% - 105s H 9 5 99401.000000 99302.9303 0.10% 80.1 106s H 14 7 99387.333333 99302.9303 0.08% 82.0 107s * 23 5 22 99364.000000 99302.9303 0.06% 79.9 108s * 28 3 3 99320.000000 99317.5247 0.00% 87.9 108s Cutting planes: Gomory: 1 Implied bound: 62 Explored 29 nodes (40367 simplex iterations) in 108.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.932000000000e+04, best bound 9.931752473383e+04, gap 0.0025%