Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:24 2013 Optimize a model with 360 rows, 1430 columns and 3450 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.01s Presolved: 350 rows, 1420 columns, 3240 nonzeros Variable types: 1220 continuous, 200 integer (200 binary) Root relaxation: objective 2.162324e+04, 144 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21623.2446 0 4 - 21623.2446 - - 0s H 0 0 21994.101780 21623.2446 1.69% - 0s 0 0 21680.1664 0 7 21994.1018 21680.1664 1.43% - 0s 0 0 21680.3701 0 6 21994.1018 21680.3701 1.43% - 0s 0 0 21681.4949 0 6 21994.1018 21681.4949 1.42% - 0s 0 0 21690.2613 0 5 21994.1018 21690.2613 1.38% - 0s 0 0 21695.5489 0 5 21994.1018 21695.5489 1.36% - 0s 0 0 21699.6026 0 5 21994.1018 21699.6026 1.34% - 0s 0 0 21702.6927 0 5 21994.1018 21702.6927 1.32% - 0s 0 0 21705.3032 0 5 21994.1018 21705.3032 1.31% - 0s 0 0 21707.5655 0 5 21994.1018 21707.5655 1.30% - 0s 0 0 21708.6159 0 7 21994.1018 21708.6159 1.30% - 0s 0 0 21709.5432 0 7 21994.1018 21709.5432 1.29% - 0s 0 0 21710.3819 0 7 21994.1018 21710.3819 1.29% - 0s 0 0 21711.0978 0 7 21994.1018 21711.0978 1.29% - 0s 0 0 21711.6372 0 7 21994.1018 21711.6372 1.28% - 0s 0 0 21712.1362 0 7 21994.1018 21712.1362 1.28% - 0s 0 0 21712.1362 0 7 21994.1018 21712.1362 1.28% - 0s H 0 0 21760.484862 21712.1362 0.22% - 0s 0 1 21725.3996 0 6 21760.4849 21725.3996 0.16% - 0s H 30 3 21760.283710 21753.1461 0.03% 4.6 0s * 37 4 20 21759.084574 21756.3597 0.01% 4.5 0s Cutting planes: Gomory: 3 Implied bound: 15 Flow cover: 2 Explored 41 nodes (808 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.175908457433e+04, best bound 2.175792603205e+04, gap 0.0053%