Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:37:04 2013 Optimize a model with 85744 rows, 84824 columns and 338744 nonzeros Presolve removed 92 rows and 0 columns Presolve time: 0.42s Presolved: 85652 rows, 84824 columns, 338652 nonzeros Variable types: 84732 continuous, 92 integer (92 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8849 7.6622939e+04 2.378113e+05 0.000000e+00 5s 10841 7.7977314e+04 9.285113e+03 0.000000e+00 10s 12473 7.8285650e+04 0.000000e+00 0.000000e+00 15s Root relaxation: objective 7.828565e+04, 12473 iterations, 14.96 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 78285.6503 0 64 - 78285.6503 - - 15s H 0 0 137687.00000 78285.6503 43.1% - 22s H 0 0 125056.00000 78285.6503 37.4% - 65s 0 0 101093.860 0 25 125056.000 101093.860 19.2% - 93s 0 0 108964.567 0 6 125056.000 108964.567 12.9% - 102s H 0 0 123504.00000 108964.567 11.8% - 102s 0 0 111448.765 0 1 123504.000 111448.765 9.76% - 106s H 0 0 111759.01235 111448.765 0.28% - 106s H 0 0 111604.00000 111448.765 0.14% - 107s 0 2 111453.210 0 1 111604.000 111453.210 0.14% - 108s * 2 1 2 111476.00000 111476.000 0.0% 180 108s Cutting planes: Implied bound: 89 Explored 3 nodes (32893 simplex iterations) in 108.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.114760000000e+05, best bound 1.114760000000e+05, gap 0.0%