Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:08 2013 Optimize a model with 2280 rows, 6040 columns and 16020 nonzeros Presolve removed 60 rows and 40 columns Presolve time: 0.10s Presolved: 2220 rows, 6000 columns, 13960 nonzeros Variable types: 5020 continuous, 980 integer (980 binary) Root relaxation: objective 3.600389e+04, 939 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36003.8892 0 2 - 36003.8892 - - 0s 0 0 36145.5170 0 2 - 36145.5170 - - 0s H 0 0 36381.773059 36145.5170 0.65% - 0s 0 0 36147.4192 0 2 36381.7731 36147.4192 0.64% - 0s 0 0 36148.1671 0 5 36381.7731 36148.1671 0.64% - 0s H 0 0 36213.782771 36148.1671 0.18% - 0s 0 0 36148.1671 0 2 36213.7828 36148.1671 0.18% - 0s 0 0 36194.5290 0 5 36213.7828 36194.5290 0.05% - 0s 0 0 36194.9121 0 5 36213.7828 36194.9121 0.05% - 0s 0 0 36195.2152 0 3 36213.7828 36195.2152 0.05% - 0s 0 0 36195.3595 0 3 36213.7828 36195.3595 0.05% - 0s 0 0 36195.3599 0 3 36213.7828 36195.3599 0.05% - 0s 0 0 36195.3604 0 3 36213.7828 36195.3604 0.05% - 0s 0 0 36195.3608 0 3 36213.7828 36195.3608 0.05% - 0s 0 0 36195.3613 0 3 36213.7828 36195.3613 0.05% - 0s 0 0 36195.3617 0 3 36213.7828 36195.3617 0.05% - 0s 0 2 36201.0399 0 3 36213.7828 36201.0399 0.04% - 0s H 6 4 36207.416676 36201.2808 0.02% 3.3 0s * 7 3 7 36202.381588 36201.2808 0.00% 3.3 0s Cutting planes: Gomory: 1 Flow cover: 4 Explored 8 nodes (1841 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.620238158816e+04, best bound 3.620128078154e+04, gap 0.0030%