Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:23:25 2013 Optimize a model with 5 rows, 250 columns and 1250 nonzeros Presolve time: 0.00s Presolved: 5 rows, 250 columns, 1250 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 146747.00000 Root relaxation: objective 1.560843e+05, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 156084.269 0 5 146747.000 156084.269 6.36% - 0s H 0 0 155642.00000 156084.269 0.28% - 0s 0 0 156079.756 0 7 155642.000 156079.756 0.28% - 0s H 0 0 155836.00000 156079.756 0.16% - 0s 0 0 156077.123 0 8 155836.000 156077.123 0.15% - 0s 0 0 156077.123 0 5 155836.000 156077.123 0.15% - 0s 0 0 156077.123 0 8 155836.000 156077.123 0.15% - 0s 0 0 156076.689 0 10 155836.000 156076.689 0.15% - 0s 0 2 156075.982 0 10 155836.000 156075.982 0.15% - 0s H 606 460 155857.00000 156064.102 0.13% 2.1 0s H 857 572 155860.00000 156064.102 0.13% 2.7 0s H 6541 4358 155883.00000 156047.502 0.11% 2.3 0s H10208 6636 155940.00000 156041.612 0.07% 2.3 0s H45191 16576 155944.00000 156016.966 0.05% 2.3 2s 105058 19788 155984.695 72 5 155944.000 156006.185 0.04% 2.3 5s 229939 9870 155965.803 68 5 155944.000 155965.803 0.01% 2.3 10s Cutting planes: Gomory: 5 Cover: 1 MIR: 6 Explored 237033 nodes (550466 simplex iterations) in 10.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.559440000000e+05, best bound 1.559590000000e+05, gap 0.0096%