Gurobi 5.0.1 (linux64) logging started Sun Dec 9 21:45:01 2012 Optimize a model with 1110 rows, 1080 columns and 3570 nonzeros Presolve removed 63 rows and 36 columns Presolve time: 0.01s Presolved: 1047 rows, 1044 columns, 3426 nonzeros Variable types: 693 continuous, 351 integer (351 binary) Root relaxation: objective 9.358995e+04, 525 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93589.9458 0 178 - 93589.9458 - - 0s H 0 0 156763.00000 93589.9458 40.3% - 0s H 0 0 156715.00000 93589.9458 40.3% - 0s 0 0 115061.871 0 37 156715.000 115061.871 26.6% - 0s H 0 0 118372.00000 115061.871 2.80% - 0s 0 0 115565.736 0 22 118372.000 115565.736 2.37% - 0s 0 0 115750.925 0 4 118372.000 115750.925 2.21% - 0s 0 0 115756.020 0 6 118372.000 115756.020 2.21% - 0s 0 2 115761.779 0 6 118372.000 115761.779 2.21% - 0s H 24 23 116044.00000 115761.779 0.24% 2.4 1s H 27 17 115854.00000 115761.779 0.08% 2.3 1s * 51 8 13 115822.00000 115796.835 0.02% 2.7 1s Cutting planes: Gomory: 22 Cover: 1 Implied bound: 1 Flow cover: 124 Flow path: 79 Explored 62 nodes (920 simplex iterations) in 2.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.158220000000e+05, best bound 1.158163930116e+05, gap 0.0048%