Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:09:06 2013 Optimize a model with 10070 rows, 10260 columns and 40505 nonzeros Presolve removed 15 rows and 10 columns Presolve time: 0.15s Presolved: 10055 rows, 10250 columns, 30490 nonzeros Variable types: 5255 continuous, 4995 integer (4995 binary) Root relaxation: objective 9.601887e+03, 3510 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9601.88662 0 1 - 9601.88662 - - 0s H 0 0 9691.2770540 9601.88662 0.92% - 1s H 0 0 9672.8074732 9601.88662 0.73% - 1s 0 0 9604.22406 0 1 9672.80747 9604.22406 0.71% - 1s 0 0 9604.22406 0 1 9672.80747 9604.22406 0.71% - 2s 0 0 9604.22406 0 1 9672.80747 9604.22406 0.71% - 2s 0 2 9604.24643 0 1 9672.80747 9604.24643 0.71% - 2s H 349 349 9666.0389175 9614.93010 0.53% 1.2 4s 461 463 9620.41719 461 1 9666.03892 9617.16147 0.51% 1.3 5s H 722 677 9658.8757682 9617.16147 0.43% 1.4 6s H 775 188 9624.2188417 9617.16282 0.07% 1.7 6s Cutting planes: Gomory: 1 Explored 957 nodes (6414 simplex iterations) in 6.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.624218841680e+03, best bound 9.623351048970e+03, gap 0.0090%