Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:34:20 2013 Optimize a model with 95254 rows, 94284 columns and 376554 nonzeros Presolve removed 97 rows and 0 columns Presolve time: 0.47s Presolved: 95157 rows, 94284 columns, 376457 nonzeros Variable types: 94187 continuous, 97 integer (97 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9555 8.4073128e+04 2.551416e+06 0.000000e+00 5s 11121 8.5968392e+04 1.470075e+05 0.000000e+00 10s 12513 8.6910710e+04 2.426846e+04 0.000000e+00 15s 14079 8.7541474e+04 1.612374e+05 0.000000e+00 20s 15231 8.7637230e+04 0.000000e+00 0.000000e+00 24s Root relaxation: objective 8.763723e+04, 15231 iterations, 24.15 seconds Total elapsed time = 25.18s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 87637.2297 0 75 - 87637.2297 - - 25s H 0 0 180331.00000 87637.2297 51.4% - 37s 0 0 115625.514 0 21 180331.000 115625.514 35.9% - 67s H 0 0 173064.88275 115625.514 33.2% - 67s H 0 0 148582.00000 115625.514 22.2% - 68s 0 0 124642.960 0 13 148582.000 124642.960 16.1% - 76s H 0 0 146561.00000 124642.960 15.0% - 77s 0 0 126377.827 0 6 146561.000 126377.827 13.8% - 82s H 0 0 134150.01251 126377.827 5.79% - 82s H 0 0 129513.00000 126377.827 2.42% - 82s H 0 0 128793.00000 126377.827 1.88% - 83s 0 0 127339.205 0 2 128793.000 127339.205 1.13% - 86s 0 2 127348.465 0 2 128793.000 127348.465 1.12% - 89s 1 3 127420.344 1 2 128793.000 127420.344 1.07% 301 90s H 6 3 127853.00000 127743.125 0.09% 521 93s H 7 2 127813.71111 127744.724 0.05% 453 93s * 10 3 8 127791.00000 127756.993 0.03% 336 93s Cutting planes: Implied bound: 97 Explored 20 nodes (42303 simplex iterations) in 94.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.277910000000e+05, best bound 1.277910000000e+05, gap 0.0%