Build (method = -2) #dp: 2458 Step-3' Graph: 125 vertices and 423 arcs (0.01s) Step-4' Graph: 76 vertices and 325 arcs (0.01s) #V4/#V3 = 0.61 #A4/#A3 = 0.77 Ready! (0.01s) Optimize a model with 86 rows, 326 columns and 836 nonzeros Presolve removed 16 rows and 30 columns Presolve time: 0.00s Presolved: 70 rows, 296 columns, 789 nonzeros Variable types: 0 continuous, 296 integer (0 binary) Found heuristic solution: objective 995.0000000 Optimize a model with 70 rows, 296 columns and 789 nonzeros Presolved: 70 rows, 296 columns, 789 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.310e+02 Factor NZ : 1.200e+03 Factor Ops : 2.289e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.75202626e+03 -3.52851633e+04 2.92e+04 2.22e-16 3.32e+02 0s 1 1.70312873e+03 -1.51626922e+04 4.67e+03 1.50e-15 6.14e+01 0s 2 9.16663108e+02 -4.14444075e+03 7.62e+02 1.22e-15 1.18e+01 0s 3 5.42532490e+02 -8.30411566e+02 1.25e+00 9.99e-16 2.28e+00 0s 4 2.84427646e+02 -1.55079167e+02 4.96e-01 8.60e-16 7.31e-01 0s 5 1.88314845e+02 -8.67181402e+00 2.17e-01 1.21e-15 3.28e-01 0s 6 1.66726027e+02 6.28648478e+01 1.23e-01 8.58e-16 1.73e-01 0s 7 1.61855559e+02 1.04639540e+02 8.05e-02 9.08e-16 9.51e-02 0s 8 1.48474088e+02 1.36420915e+02 1.01e-04 8.11e-16 2.00e-02 0s 9 1.42913784e+02 1.42494529e+02 4.33e-06 1.15e-15 6.96e-04 0s 10 1.42857202e+02 1.42856780e+02 9.00e-14 7.78e-16 7.01e-07 0s 11 1.42857143e+02 1.42857142e+02 1.39e-13 1.08e-15 7.01e-10 0s Barrier solved model in 11 iterations and 0.00 seconds Optimal objective 1.42857143e+02 Root relaxation: objective 1.428571e+02, 186 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 142.85714 0 12 995.00000 142.85714 85.6% - 0s H 0 0 143.0000000 142.85714 0.10% - 0s Explored 0 nodes (271 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.430000000000e+02, best bound 1.430000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 143 Solution: 15 x [2, 3, 3, 7, 9, 10, 10] 34 x [2, 3, 7, 7, 8, 9, 10] 9 x [2, 3, 3, 7, 7, 8, 9] 32 x [1, 4, 5, 5, 6, 6, 9] 1 x [1, 3, 6, 7, 7, 10] 1 x [1, 3, 6, 7, 7, 8, 9] 27 x [1, 1, 3, 4, 7, 10, 10] 21 x [3, 4, 4, 4, 7, 8, 9] 3 x [3, 3, 7, 7, 8, 10, 10]