Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:13 2013 Optimize a model with 100 rows, 2550 columns and 5050 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 100 rows, 2549 columns, 5049 nonzeros Variable types: 2500 continuous, 49 integer (49 binary) Root relaxation: objective 7.198304e+05, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 719830.404 0 47 - 719830.404 - - 0s H 0 0 1801103.7375 719830.404 60.0% - 0s H 0 0 1452741.4750 719830.404 50.5% - 0s 0 0 841595.620 0 28 1452741.48 841595.620 42.1% - 0s H 0 0 1217569.7125 841595.620 30.9% - 0s 0 0 869407.632 0 30 1217569.71 869407.632 28.6% - 0s 0 0 893423.784 0 20 1217569.71 893423.784 26.6% - 0s H 0 0 1072725.5000 893423.784 16.7% - 0s 0 0 910130.774 0 22 1072725.50 910130.774 15.2% - 0s 0 0 922201.681 0 24 1072725.50 922201.681 14.0% - 0s 0 0 927762.287 0 17 1072725.50 927762.287 13.5% - 0s H 0 0 948990.25000 927762.287 2.24% - 0s 0 2 928557.716 0 17 948990.250 928557.716 2.15% - 0s * 30 19 30 948434.75000 933204.445 1.61% 5.0 0s * 93 23 10 947675.90000 941893.274 0.61% 8.5 0s * 94 21 10 947635.05000 941893.274 0.61% 8.4 0s * 100 20 13 947074.35000 941893.274 0.55% 8.0 0s * 101 19 13 947033.50000 941893.274 0.54% 7.9 0s H 114 9 946051.32500 943148.853 0.31% 8.7 0s Cutting planes: Implied bound: 283 Flow cover: 8 Explored 123 nodes (1354 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.460513250000e+05, best bound 9.460513250000e+05, gap 0.0%