Build (method = -2) #dp: 1719 Step-3' Graph: 77 vertices and 225 arcs (0.01s) Step-4' Graph: 30 vertices and 131 arcs (0.01s) #V4/#V3 = 0.39 #A4/#A3 = 0.58 Ready! (0.01s) Optimize a model with 40 rows, 132 columns and 345 nonzeros Presolve removed 10 rows and 19 columns Presolve time: 0.00s Presolved: 30 rows, 113 columns, 309 nonzeros Variable types: 0 continuous, 113 integer (6 binary) Found heuristic solution: objective 97.0000000 Found heuristic solution: objective 51.0000000 Optimize a model with 30 rows, 113 columns and 309 nonzeros Presolved: 30 rows, 113 columns, 309 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.480e+02 Factor NZ : 3.590e+02 Factor Ops : 5.319e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 8.06047993e+02 -1.50230195e+03 1.30e+03 1.17e-01 5.31e+01 0s 1 2.12451991e+02 -6.97040188e+02 1.96e+02 7.77e-16 9.10e+00 0s 2 6.47283484e+01 -1.81287580e+02 5.10e+00 4.44e-16 1.12e+00 0s 3 3.16744475e+01 -9.47610884e+00 3.11e-14 3.40e-16 1.75e-01 0s 4 1.90443535e+01 8.66527697e+00 8.74e-15 2.01e-16 4.42e-02 0s 5 1.76176169e+01 1.47152034e+01 9.77e-15 2.90e-16 1.24e-02 0s 6 1.66807662e+01 1.66024713e+01 1.05e-14 4.44e-16 3.33e-04 0s 7 1.66666668e+01 1.66666664e+01 1.35e-14 3.33e-16 2.07e-09 0s 8 1.66666667e+01 1.66666667e+01 1.78e-13 3.61e-16 2.07e-12 0s Barrier solved model in 8 iterations and 0.00 seconds Optimal objective 1.66666667e+01 Root relaxation: objective 1.666667e+01, 76 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.66667 0 10 51.00000 16.66667 67.3% - 0s H 0 0 17.0000000 16.66667 1.96% - 0s Explored 0 nodes (90 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 17 Solution: 8 x [2, 3, 4, 8, 9, 10] 4 x [1, 2, 3, 5, 8, 8] 2 x [1, 1, 3, 3, 8, 9] 1 x [1, 7, 8, 10] 1 x [1, 2, 4, 6, 8, 10] 1 x [2, 4, 5, 7, 8, 10]