Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:40 2013 Optimize a model with 2028 rows, 6044 columns and 16082 nonzeros Presolve removed 820 rows and 2418 columns Presolve time: 0.19s Presolved: 1208 rows, 3626 columns, 7252 nonzeros Variable types: 2424 continuous, 1202 integer (1202 binary) Root relaxation: objective 4.440467e+03, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 4440.46714 0 1 - 4440.46714 - - 0s H 0 0 4469.2019148 4440.46714 0.64% - 0s 0 0 4446.78799 0 1 4469.20191 4446.78799 0.50% - 0s H 0 0 4458.9449856 4446.78799 0.27% - 0s 0 0 4453.69906 0 2 4458.94499 4453.69906 0.12% - 0s 0 0 4453.79257 0 2 4458.94499 4453.79257 0.12% - 0s 0 0 4453.88420 0 2 4458.94499 4453.88420 0.11% - 0s 0 0 4453.97403 0 2 4458.94499 4453.97403 0.11% - 0s 0 0 4454.06214 0 2 4458.94499 4454.06214 0.11% - 0s 0 0 4454.14861 0 2 4458.94499 4454.14861 0.11% - 0s 0 0 4454.23352 0 2 4458.94499 4454.23352 0.11% - 0s 0 0 4454.31691 0 2 4458.94499 4454.31691 0.10% - 0s 0 0 4454.39887 0 2 4458.94499 4454.39887 0.10% - 0s 0 0 4454.47944 0 2 4458.94499 4454.47944 0.10% - 0s 0 0 4454.55868 0 2 4458.94499 4454.55868 0.10% - 0s 0 0 4454.63663 0 2 4458.94499 4454.63663 0.10% - 0s 0 0 4454.71335 0 2 4458.94499 4454.71335 0.09% - 0s 0 0 4454.78889 0 2 4458.94499 4454.78889 0.09% - 0s 0 0 4454.86327 0 2 4458.94499 4454.86327 0.09% - 0s 0 0 4454.93655 0 2 4458.94499 4454.93655 0.09% - 0s 0 0 4455.00876 0 2 4458.94499 4455.00876 0.09% - 0s 0 0 4455.07993 0 2 4458.94499 4455.07993 0.09% - 0s 0 0 4455.15010 0 2 4458.94499 4455.15010 0.09% - 0s 0 0 4455.21931 0 2 4458.94499 4455.21931 0.08% - 0s 0 0 4455.28757 0 2 4458.94499 4455.28757 0.08% - 0s 0 0 4455.35493 0 2 4458.94499 4455.35493 0.08% - 0s 0 0 4455.42140 0 2 4458.94499 4455.42140 0.08% - 0s 0 0 4455.48702 0 2 4458.94499 4455.48702 0.08% - 0s 0 0 4455.55180 0 2 4458.94499 4455.55180 0.08% - 0s 0 0 4455.61578 0 2 4458.94499 4455.61578 0.07% - 0s 0 0 4455.67897 0 2 4458.94499 4455.67897 0.07% - 0s 0 0 4455.74140 0 2 4458.94499 4455.74140 0.07% - 0s 0 0 4455.80309 0 2 4458.94499 4455.80309 0.07% - 0s 0 0 4455.86405 0 2 4458.94499 4455.86405 0.07% - 0s 0 0 4455.92431 0 2 4458.94499 4455.92431 0.07% - 0s 0 0 4455.98388 0 2 4458.94499 4455.98388 0.07% - 0s 0 0 4456.04279 0 2 4458.94499 4456.04279 0.07% - 0s 0 0 4456.10104 0 2 4458.94499 4456.10104 0.06% - 0s 0 0 4456.15866 0 2 4458.94499 4456.15866 0.06% - 1s 0 0 4456.21566 0 2 4458.94499 4456.21566 0.06% - 1s 0 0 4456.27205 0 2 4458.94499 4456.27205 0.06% - 1s 0 0 4456.32786 0 2 4458.94499 4456.32786 0.06% - 1s 0 0 4456.38308 0 2 4458.94499 4456.38308 0.06% - 1s 0 0 4456.43774 0 2 4458.94499 4456.43774 0.06% - 1s 0 0 4456.49185 0 2 4458.94499 4456.49185 0.06% - 1s 0 0 4456.54543 0 2 4458.94499 4456.54543 0.05% - 1s 0 0 4456.59847 0 2 4458.94499 4456.59847 0.05% - 1s 0 0 4456.65100 0 2 4458.94499 4456.65100 0.05% - 1s 0 0 4456.70303 0 2 4458.94499 4456.70303 0.05% - 1s 0 0 4456.75456 0 2 4458.94499 4456.75456 0.05% - 1s 0 0 4456.80561 0 2 4458.94499 4456.80561 0.05% - 1s 0 0 4456.85618 0 2 4458.94499 4456.85618 0.05% - 1s 0 0 4456.90629 0 2 4458.94499 4456.90629 0.05% - 1s 0 0 4456.95595 0 2 4458.94499 4456.95595 0.04% - 1s 0 0 4457.00516 0 2 4458.94499 4457.00516 0.04% - 1s 0 0 4457.05394 0 2 4458.94499 4457.05394 0.04% - 1s 0 0 4457.10229 0 2 4458.94499 4457.10229 0.04% - 1s 0 0 4457.15021 0 2 4458.94499 4457.15021 0.04% - 1s 0 0 4457.19773 0 2 4458.94499 4457.19773 0.04% - 1s 0 0 4457.24484 0 2 4458.94499 4457.24484 0.04% - 1s 0 0 4457.29156 0 2 4458.94499 4457.29156 0.04% - 1s 0 0 4457.33789 0 2 4458.94499 4457.33789 0.04% - 1s 0 0 4457.38383 0 2 4458.94499 4457.38383 0.04% - 1s 0 0 4457.42940 0 2 4458.94499 4457.42940 0.03% - 1s 0 0 4457.47460 0 2 4458.94499 4457.47460 0.03% - 1s 0 0 4457.51944 0 2 4458.94499 4457.51944 0.03% - 1s 0 0 4457.56392 0 2 4458.94499 4457.56392 0.03% - 1s 0 0 4457.60806 0 2 4458.94499 4457.60806 0.03% - 1s 0 0 4457.65185 0 2 4458.94499 4457.65185 0.03% - 1s 0 0 4457.69530 0 2 4458.94499 4457.69530 0.03% - 1s 0 0 4457.73842 0 2 4458.94499 4457.73842 0.03% - 1s 0 0 4457.78121 0 2 4458.94499 4457.78121 0.03% - 1s 0 0 4457.82368 0 2 4458.94499 4457.82368 0.03% - 1s 0 0 4457.86584 0 2 4458.94499 4457.86584 0.02% - 1s 0 0 4457.90768 0 2 4458.94499 4457.90768 0.02% - 1s 0 0 4457.94922 0 2 4458.94499 4457.94922 0.02% - 1s 0 0 4457.99046 0 2 4458.94499 4457.99046 0.02% - 1s 0 0 4458.03140 0 2 4458.94499 4458.03140 0.02% - 1s 0 0 4458.07205 0 2 4458.94499 4458.07205 0.02% - 1s 0 0 4458.10072 0 2 4458.94499 4458.10072 0.02% - 1s 0 0 4458.10655 0 2 4458.94499 4458.10655 0.02% - 1s 0 0 4458.11238 0 2 4458.94499 4458.11238 0.02% - 1s 0 0 4458.11242 0 2 4458.94499 4458.11242 0.02% - 1s 0 0 4458.11820 0 2 4458.94499 4458.11820 0.02% - 1s 0 0 4458.12402 0 2 4458.94499 4458.12402 0.02% - 1s 0 0 4458.12982 0 2 4458.94499 4458.12982 0.02% - 1s 0 0 4458.13562 0 2 4458.94499 4458.13562 0.02% - 1s 0 0 4458.14142 0 2 4458.94499 4458.14142 0.02% - 1s 0 0 4458.14720 0 2 4458.94499 4458.14720 0.02% - 1s 0 0 4458.15250 0 2 4458.94499 4458.15250 0.02% - 1s 0 0 4458.15298 0 2 4458.94499 4458.15298 0.02% - 1s 0 0 4458.15875 0 2 4458.94499 4458.15875 0.02% - 1s 0 0 4458.16452 0 2 4458.94499 4458.16452 0.02% - 1s 0 0 4458.17027 0 2 4458.94499 4458.17027 0.02% - 1s 0 0 4458.17603 0 2 4458.94499 4458.17603 0.02% - 1s 0 0 4458.18177 0 2 4458.94499 4458.18177 0.02% - 1s 0 0 4458.18751 0 2 4458.94499 4458.18751 0.02% - 1s 0 0 4458.19230 0 2 4458.94499 4458.19230 0.02% - 1s 0 0 4458.19324 0 2 4458.94499 4458.19324 0.02% - 1s 0 0 4458.19896 0 2 4458.94499 4458.19896 0.02% - 1s 0 0 4458.20468 0 2 4458.94499 4458.20468 0.02% - 1s 0 0 4458.21039 0 2 4458.94499 4458.21039 0.02% - 1s 0 0 4458.21609 0 2 4458.94499 4458.21609 0.02% - 1s 0 1 4458.22748 0 2 4458.94499 4458.22748 0.02% - 1s Cutting planes: Cover: 2 Flow cover: 2 Explored 58 nodes (1335 simplex iterations) in 1.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.458944985632e+03, best bound 4.458501154816e+03, gap 0.0100%