Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:11:03 2013 Optimize a model with 847 rows, 59367 columns and 118657 nonzeros Presolve time: 0.09s Presolved: 847 rows, 59367 columns, 118657 nonzeros Variable types: 59290 continuous, 77 integer (77 binary) Root relaxation: objective 8.021254e+04, 2003 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 80212.5373 0 10 - 80212.5373 - - 0s H 0 0 84586.000000 80212.5373 5.17% - 0s H 0 0 81306.000000 80212.5373 1.34% - 0s 0 0 80779.9247 0 9 81306.0000 80779.9247 0.65% - 0s 0 0 80814.7033 0 5 81306.0000 80814.7033 0.60% - 0s 0 0 80814.7033 0 10 81306.0000 80814.7033 0.60% - 0s 0 0 80814.7033 0 9 81306.0000 80814.7033 0.60% - 1s 0 0 80814.7033 0 5 81306.0000 80814.7033 0.60% - 1s 0 0 80821.3903 0 4 81306.0000 80821.3903 0.60% - 1s 0 0 80821.4769 0 4 81306.0000 80821.4769 0.60% - 1s 0 0 80821.5508 0 5 81306.0000 80821.5508 0.60% - 1s H 0 0 81091.000000 80821.5508 0.33% - 1s 0 2 80821.6773 0 5 81091.0000 80821.6773 0.33% - 1s H 17 8 81055.000000 80883.7513 0.21% 32.4 1s * 18 7 16 81025.000000 80883.7513 0.17% 30.9 1s Cutting planes: Implied bound: 154 Explored 32 nodes (6044 simplex iterations) in 2.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.102500000000e+04, best bound 8.102437920172e+04, gap 0.0008%