Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:09 2013 Optimize a model with 16480 rows, 16080 columns and 64080 nonzeros Presolve removed 40 rows and 0 columns Presolve time: 0.07s Presolved: 16440 rows, 16080 columns, 64040 nonzeros Variable types: 16040 continuous, 40 integer (40 binary) Root relaxation: objective 3.879291e+04, 2669 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 38792.9103 0 32 - 38792.9103 - - 0s H 0 0 47370.000000 38792.9103 18.1% - 0s 0 0 44591.1144 0 4 47370.0000 44591.1144 5.87% - 1s H 0 0 46507.685522 44591.1144 4.12% - 1s H 0 0 45828.000000 44591.1144 2.70% - 1s 0 0 44922.0000 0 2 45828.0000 44922.0000 1.98% - 1s H 0 0 45695.000000 44922.0000 1.69% - 1s H 0 0 45463.000000 44922.0000 1.19% - 1s H 0 0 45265.000000 44922.0000 0.76% - 1s 0 0 44922.0000 0 2 45265.0000 44922.0000 0.76% - 1s 0 2 44944.0438 0 2 45265.0000 44944.0438 0.71% - 1s * 3 3 2 45120.000000 45120.0000 0.0% 189 1s Cutting planes: Implied bound: 34 Explored 4 nodes (4645 simplex iterations) in 1.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.512000000000e+04, best bound 4.512000000000e+04, gap 0.0%