Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:15:26 2013 Optimize a model with 170430 rows, 169130 columns and 676130 nonzeros Presolve removed 8055 rows and 0 columns Presolve time: 1.60s Presolved: 162375 rows, 169130 columns, 660020 nonzeros Variable types: 169000 continuous, 130 integer (130 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19459 1.2456184e+05 2.066928e+04 0.000000e+00 5s 27895 1.7289379e+05 2.130377e+04 0.000000e+00 10s 35221 1.9186806e+05 4.103041e+03 0.000000e+00 15s 37520 1.9307378e+05 0.000000e+00 0.000000e+00 18s Root relaxation: objective 1.930738e+05, 37520 iterations, 18.03 seconds Total elapsed time = 20.15s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 193073.781 0 3 - 193073.781 - - 20s H 0 0 199554.00000 193073.781 3.25% - 21s 0 0 193074.885 0 4 199554.000 193074.885 3.25% - 23s H 0 0 194675.69167 193074.885 0.82% - 29s H 0 0 194313.31902 193074.885 0.64% - 29s H 0 0 194135.00000 193074.885 0.55% - 29s 0 0 193074.885 0 3 194135.000 193074.885 0.55% - 43s 0 0 193074.935 0 4 194135.000 193074.935 0.55% - 43s 0 0 193074.935 0 4 194135.000 193074.935 0.55% - 44s 0 2 193078.220 0 4 194135.000 193078.220 0.54% - 49s 2 5 193226.609 2 2 194135.000 193136.171 0.51% 533 50s 12 12 193658.500 10 1 194135.000 193298.783 0.43% 365 55s H 13 11 193785.00000 193298.783 0.25% 337 55s H 14 11 193773.00000 193298.783 0.24% 322 55s * 15 11 13 193739.00000 193298.783 0.23% 304 55s * 32 16 15 193726.00000 193362.131 0.19% 238 58s * 37 0 3 193374.00000 193374.000 0.0% 238 59s Cutting planes: Gomory: 1 Flow cover: 2 Explored 38 nodes (61805 simplex iterations) in 59.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.933740000000e+05, best bound 1.933740000000e+05, gap 0.0%