Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:39:18 2013 Optimize a model with 880 rows, 64080 columns and 128080 nonzeros Presolve time: 0.10s Presolved: 880 rows, 64080 columns, 128080 nonzeros Variable types: 64000 continuous, 80 integer (80 binary) Root relaxation: objective 9.563403e+04, 2445 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 95634.0271 0 6 - 95634.0271 - - 0s H 0 0 102635.00000 95634.0271 6.82% - 0s 0 0 95808.3330 0 5 102635.000 95808.3330 6.65% - 0s 0 0 95891.2894 0 5 102635.000 95891.2894 6.57% - 0s 0 0 95897.6375 0 4 102635.000 95897.6375 6.56% - 0s 0 0 95901.2606 0 4 102635.000 95901.2606 6.56% - 0s 0 0 95901.6459 0 4 102635.000 95901.6459 6.56% - 0s 0 0 95907.9213 0 4 102635.000 95907.9213 6.55% - 1s H 0 0 101828.11897 95907.9213 5.81% - 1s H 0 0 100261.00000 95907.9213 4.34% - 1s 0 0 95908.2324 0 4 100261.000 95908.2324 4.34% - 1s H 0 0 100217.00000 95908.2324 4.30% - 1s 0 0 95908.2457 0 4 100217.000 95908.2457 4.30% - 1s H 0 0 100204.00000 95908.2457 4.29% - 1s 0 0 95908.2457 0 4 100204.000 95908.2457 4.29% - 1s 0 2 95909.5926 0 4 100204.000 95909.5926 4.29% - 1s H 3 3 98928.724390 95945.9841 3.02% 52.3 1s H 5 5 96283.317073 95949.8811 0.35% 53.8 2s H 9 4 96102.000000 95949.8811 0.16% 55.2 2s * 11 4 10 96092.000000 95949.8811 0.15% 59.0 2s Cutting planes: Implied bound: 71 Flow cover: 6 Explored 16 nodes (3756 simplex iterations) in 2.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.609200000000e+04, best bound 9.609200000000e+04, gap 0.0%