Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:32 2013 Optimize a model with 418 rows, 14478 columns and 28918 nonzeros Presolve time: 0.02s Presolved: 418 rows, 14478 columns, 28918 nonzeros Variable types: 14440 continuous, 38 integer (38 binary) Root relaxation: objective 3.734766e+04, 569 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 37347.6617 0 10 - 37347.6617 - - 0s H 0 0 40093.000000 37347.6617 6.85% - 0s 0 0 38004.4082 0 7 40093.0000 38004.4082 5.21% - 0s 0 0 38045.2884 0 5 40093.0000 38045.2884 5.11% - 0s H 0 0 39731.000000 38045.2884 4.24% - 0s 0 0 38049.8644 0 4 39731.0000 38049.8644 4.23% - 0s H 0 0 39692.128064 38049.8644 4.14% - 0s H 0 0 39100.000000 38049.8644 2.69% - 0s 0 0 38049.8805 0 4 39100.0000 38049.8805 2.69% - 0s 0 0 38049.8805 0 4 39100.0000 38049.8805 2.69% - 0s H 0 0 38156.000000 38049.8805 0.28% - 0s 0 0 38049.8805 0 10 38156.0000 38049.8805 0.28% - 0s 0 0 38049.8805 0 7 38156.0000 38049.8805 0.28% - 0s 0 0 38049.8805 0 5 38156.0000 38049.8805 0.28% - 0s 0 0 38049.8805 0 4 38156.0000 38049.8805 0.28% - 0s 0 0 38049.8805 0 4 38156.0000 38049.8805 0.28% - 0s 0 0 38049.8805 0 4 38156.0000 38049.8805 0.28% - 0s 0 2 38049.9839 0 4 38156.0000 38049.9839 0.28% - 0s * 6 4 5 38115.000000 38071.8437 0.11% 29.7 0s Cutting planes: Implied bound: 82 Flow cover: 4 Explored 16 nodes (1875 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.811500000000e+04, best bound 3.811500000000e+04, gap 0.0%