Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:03 2013 Optimize a model with 5 rows, 100 columns and 500 nonzeros Presolve time: 0.00s Presolved: 5 rows, 100 columns, 500 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 18532.000000 Root relaxation: objective 2.389583e+04, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23895.8289 0 5 18532.0000 23895.8289 28.9% - 0s H 0 0 23322.000000 23895.8289 2.46% - 0s 0 0 23884.7450 0 7 23322.0000 23884.7450 2.41% - 0s 0 0 23882.5458 0 9 23322.0000 23882.5458 2.40% - 0s 0 0 23881.2241 0 9 23322.0000 23881.2241 2.40% - 0s 0 0 23877.2913 0 8 23322.0000 23877.2913 2.38% - 0s 0 0 23875.9226 0 10 23322.0000 23875.9226 2.38% - 0s 0 0 23874.0107 0 11 23322.0000 23874.0107 2.37% - 0s 0 0 23871.4268 0 10 23322.0000 23871.4268 2.36% - 0s 0 0 23866.8945 0 10 23322.0000 23866.8945 2.34% - 0s 0 0 23866.0033 0 10 23322.0000 23866.0033 2.33% - 0s H 0 0 23348.000000 23866.0033 2.22% - 0s H 0 0 23480.000000 23866.0033 1.64% - 0s 0 2 23865.4244 0 10 23480.0000 23865.4244 1.64% - 0s H 198 151 23523.000000 23833.8356 1.32% 2.9 0s H 4117 1874 23534.000000 23769.1228 1.00% 2.6 0s H 4346 1987 23538.000000 23767.2581 0.97% 2.6 0s H21463 5119 23551.000000 23674.3262 0.52% 2.5 0s Cutting planes: Gomory: 5 Cover: 1 MIR: 2 Zero half: 1 Explored 38137 nodes (89963 simplex iterations) in 1.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.355100000000e+04, best bound 2.355300000000e+04, gap 0.0085%