Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:53:35 2013 Optimize a model with 91390 rows, 90440 columns and 361190 nonzeros Presolve removed 95 rows and 0 columns Presolve time: 0.46s Presolved: 91295 rows, 90440 columns, 361095 nonzeros Variable types: 90345 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 10251 7.9965968e+04 3.534085e+05 0.000000e+00 5s 11790 8.1046793e+04 1.377070e+04 0.000000e+00 10s 13329 8.1513149e+04 5.397102e+01 0.000000e+00 15s 13637 8.1524769e+04 0.000000e+00 0.000000e+00 16s Root relaxation: objective 8.152477e+04, 13637 iterations, 16.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 81524.7689 0 71 - 81524.7689 - - 17s H 0 0 165520.00000 81524.7689 50.7% - 23s 0 0 109946.105 0 27 165520.000 109946.105 33.6% - 55s H 0 0 138770.00000 109946.105 20.8% - 66s 0 0 127048.594 0 8 138770.000 127048.594 8.45% - 77s H 0 0 136479.43763 127048.594 6.91% - 77s H 0 0 131961.00000 127048.594 3.72% - 77s H 0 0 131572.00000 127048.594 3.44% - 78s 0 0 127454.289 0 4 131572.000 127454.289 3.13% - 78s H 0 0 130191.29124 127454.289 2.10% - 78s H 0 0 129750.00000 127454.289 1.77% - 78s 0 2 127455.903 0 4 129750.000 127455.903 1.77% - 80s H 1 1 128780.00000 127455.903 1.03% 0.0 81s H 5 5 127818.59091 127522.686 0.23% 325 83s H 6 6 127734.44737 127522.686 0.17% 303 83s * 10 8 9 127630.00000 127522.686 0.08% 246 85s H 22 7 127603.07955 127569.979 0.03% 243 88s H 26 11 127592.47368 127569.979 0.02% 221 88s * 27 11 10 127588.00000 127569.979 0.01% 214 88s Cutting planes: Gomory: 2 Implied bound: 94 Explored 33 nodes (40133 simplex iterations) in 88.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.275880000000e+05, best bound 1.275767631579e+05, gap 0.0088%