Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:47:43 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 8160 7.2636396e+04 6.567870e+04 0.000000e+00 5s 9634 7.3142441e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.314244e+04, 9634 iterations, 8.87 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 73142.4406 0 65 - 73142.4406 - - 9s H 0 0 122400.00000 73142.4406 40.2% - 16s 0 0 91434.1323 0 22 122400.000 91434.1323 25.3% - 32s H 0 0 111827.00000 91434.1323 18.2% - 34s 0 0 97064.5272 0 11 111827.000 97064.5272 13.2% - 38s H 0 0 110877.00000 97064.5272 12.5% - 38s 0 0 97920.6199 0 5 110877.000 97920.6199 11.7% - 39s H 0 0 104770.69574 97920.6199 6.54% - 39s H 0 0 103450.00000 97920.6199 5.34% - 40s H 0 0 98787.000000 97920.6199 0.88% - 40s 0 2 97927.1697 0 5 98787.0000 97927.1697 0.87% - 42s 12 14 98343.3636 10 2 98787.0000 98073.8143 0.72% 270 45s H 21 15 98468.000000 98073.8143 0.40% 218 46s * 27 13 20 98458.000000 98073.8143 0.39% 183 47s * 35 17 8 98427.000000 98074.9145 0.36% 218 48s 45 20 98391.1866 7 4 98427.0000 98127.8821 0.30% 218 50s H 67 21 98425.000000 98168.0863 0.26% 184 51s H 82 22 98383.000000 98180.9704 0.21% 172 53s 105 13 98340.6000 8 1 98383.0000 98315.2424 0.07% 156 55s * 111 11 8 98379.000000 98329.0736 0.05% 152 55s Cutting planes: Implied bound: 85 Explored 122 nodes (39267 simplex iterations) in 56.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.837900000000e+04, best bound 9.837059400120e+04, gap 0.0085%