Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:32:10 2013 Optimize a model with 71568 rows, 70728 columns and 282408 nonzeros Presolve removed 84 rows and 0 columns Presolve time: 0.33s Presolved: 71484 rows, 70728 columns, 282324 nonzeros Variable types: 70644 continuous, 84 integer (84 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8132 6.9833410e+04 6.364836e+04 0.000000e+00 5s 10076 7.0714787e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.071479e+04, 10076 iterations, 9.95 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 70714.7868 0 64 - 70714.7868 - - 10s H 0 0 128651.00000 70714.7868 45.0% - 17s 0 0 90508.3686 0 27 128651.000 90508.3686 29.6% - 30s H 0 0 110903.00000 90508.3686 18.4% - 31s 0 0 94674.0052 0 5 110903.000 94674.0052 14.6% - 35s H 0 0 109157.80313 94674.0052 13.3% - 35s H 0 0 107678.00000 94674.0052 12.1% - 36s H 0 0 107241.00000 94674.0052 11.7% - 36s 0 0 95365.0576 0 5 107241.000 95365.0576 11.1% - 38s H 0 0 101949.38895 95365.0576 6.46% - 38s H 0 0 101283.00000 95365.0576 5.84% - 38s 0 0 95481.2000 0 1 101283.000 95481.2000 5.73% - 39s H 0 0 97876.053333 95481.2000 2.45% - 39s H 0 0 97176.000000 95481.2000 1.74% - 39s H 0 0 95893.000000 95481.2000 0.43% - 40s 0 2 95482.5942 0 1 95893.0000 95482.5942 0.43% - 41s 19 2 95846.5128 19 1 95893.0000 95691.4008 0.21% 170 45s Cutting planes: Implied bound: 82 Explored 24 nodes (27089 simplex iterations) in 45.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.589300000000e+04, best bound 9.588560000000e+04, gap 0.0077%