Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:05:53 2013 Optimize a model with 5 rows, 500 columns and 2500 nonzeros Presolve time: 0.01s Presolved: 5 rows, 500 columns, 2500 nonzeros Variable types: 0 continuous, 500 integer (500 binary) Found heuristic solution: objective 287543.00000 Root relaxation: objective 3.014002e+05, 18 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 301400.245 0 5 287543.000 301400.245 4.82% - 0s H 0 0 300983.00000 301400.245 0.14% - 0s 0 0 301398.678 0 8 300983.000 301398.678 0.14% - 0s H 0 0 301115.00000 301398.678 0.09% - 0s H 0 0 301266.00000 301398.678 0.04% - 0s 0 0 301398.678 0 5 301266.000 301398.678 0.04% - 0s 0 0 301398.678 0 8 301266.000 301398.678 0.04% - 0s 0 2 301398.525 0 8 301266.000 301398.525 0.04% - 0s H 27 27 301279.00000 301396.937 0.04% 2.5 0s H 605 500 301314.00000 301395.174 0.03% 1.8 0s H16890 11599 301322.00000 301383.649 0.02% 2.2 1s H39592 19960 301329.00000 301382.659 0.02% 2.2 2s 93486 37719 301372.914 88 5 301329.000 301380.738 0.02% 2.3 5s 202514 72217 301349.421 75 5 301329.000 301371.259 0.01% 2.3 10s 313703 119299 301360.084 72 5 301329.000 301366.910 0.01% 2.3 15s 426498 157238 301352.697 75 5 301329.000 301364.073 0.01% 2.3 20s 539646 189284 cutoff 82 301329.000 301361.738 0.01% 2.3 25s H648907 169324 301339.00000 301359.886 0.01% 2.4 29s Cutting planes: Gomory: 5 Cover: 1 MIR: 7 Explored 648907 nodes (1527539 simplex iterations) in 29.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.013390000000e+05, best bound 3.013590000000e+05, gap 0.0066%