Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:25:12 2012 Optimize a model with 1095 rows, 1080 columns and 3555 nonzeros Presolve removed 97 rows and 59 columns Presolve time: 0.01s Presolved: 998 rows, 1021 columns, 3325 nonzeros Variable types: 680 continuous, 341 integer (341 binary) Root relaxation: objective 9.563211e+04, 490 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 95632.1073 0 166 - 95632.1073 - - 0s H 0 0 152673.00000 95632.1073 37.4% - 0s H 0 0 151741.00000 95632.1073 37.0% - 0s 0 0 114448.329 0 27 151741.000 114448.329 24.6% - 0s H 0 0 126515.54053 114448.329 9.54% - 0s 0 0 114876.217 0 4 126515.541 114876.217 9.20% - 0s H 0 0 116488.82557 114876.217 1.38% - 0s 0 0 114918.500 0 1 116488.826 114918.500 1.35% - 0s H 0 0 115181.00000 114918.500 0.23% - 0s H 0 0 114971.00000 114918.500 0.05% - 0s 0 2 114921.372 0 1 114971.000 114921.372 0.04% - 0s Cutting planes: Gomory: 12 Cover: 3 Implied bound: 3 Flow cover: 96 Flow path: 53 Explored 14 nodes (702 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.149710000000e+05, best bound 1.149602325581e+05, gap 0.0094%