Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:13:08 2013 Optimize a model with 170 rows, 5315 columns and 60670 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.11s Presolved: 165 rows, 5310 columns, 55665 nonzeros Variable types: 5260 continuous, 50 integer (50 binary) Root relaxation: objective 1.704455e+04, 79 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17044.5499 0 3 - 17044.5499 - - 0s 0 0 17044.5714 0 3 - 17044.5714 - - 0s 0 0 17044.5714 0 3 - 17044.5714 - - 0s 0 0 17044.5895 0 3 - 17044.5895 - - 0s 0 0 17085.0810 0 3 - 17085.0810 - - 0s 0 0 17089.9308 0 3 - 17089.9308 - - 0s 0 0 17089.9308 0 3 - 17089.9308 - - 0s 0 0 17089.9308 0 3 - 17089.9308 - - 0s 0 0 17089.9308 0 3 - 17089.9308 - - 1s 0 0 17089.9329 0 3 - 17089.9329 - - 1s 0 0 17089.9329 0 3 - 17089.9329 - - 1s H 0 0 17173.582539 17089.9329 0.49% - 1s H 0 0 17165.682790 17089.9329 0.44% - 1s 0 2 17089.9329 0 3 17165.6828 17089.9329 0.44% - 1s * 14 6 13 17094.825730 17089.9329 0.03% 4.8 1s * 30 9 13 17093.866817 17090.2400 0.02% 4.0 1s * 37 11 15 17093.425416 17090.2400 0.02% 3.6 1s * 53 11 14 17092.019969 17091.4209 0.00% 3.5 1s Cutting planes: Flow cover: 2 Explored 54 nodes (576 simplex iterations) in 1.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.709201996932e+04, best bound 1.709142085645e+04, gap 0.0035%