Build (method = -2) #dp: 615 Step-3' Graph: 171 vertices and 506 arcs (0.01s) Step-4' Graph: 45 vertices and 254 arcs (0.01s) #V4/#V3 = 0.26 #A4/#A3 = 0.50 Ready! (0.01s) Optimize a model with 82 rows, 255 columns and 679 nonzeros Presolve removed 22 rows and 27 columns Presolve time: 0.00s Presolved: 60 rows, 228 columns, 605 nonzeros Variable types: 0 continuous, 228 integer (14 binary) Found heuristic solution: objective 360.0000000 Found heuristic solution: objective 294.0000000 Optimize a model with 60 rows, 228 columns and 605 nonzeros Presolved: 60 rows, 228 columns, 605 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.140e+02 Factor NZ : 1.032e+03 Factor Ops : 2.087e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.66794956e+03 -4.53099827e+03 5.50e+03 2.22e-16 7.43e+01 0s 1 6.50929629e+02 -1.62957511e+03 6.19e+02 1.33e-15 1.07e+01 0s 2 3.37632705e+02 -2.72616486e+02 1.91e+01 1.61e-15 1.41e+00 0s 3 2.64936969e+02 8.87967454e+01 9.47e-01 9.99e-16 3.75e-01 0s 4 2.18911569e+02 1.62594578e+02 9.02e-02 1.33e-15 1.19e-01 0s 5 2.04623738e+02 1.95025373e+02 1.74e-02 8.88e-16 2.03e-02 0s 6 2.03167784e+02 2.02829299e+02 1.38e-03 1.33e-15 7.19e-04 0s 7 2.03000028e+02 2.02999982e+02 2.65e-07 8.45e-16 9.90e-08 0s 8 2.03000000e+02 2.03000000e+02 1.30e-12 1.16e-15 9.90e-11 0s 9 2.03000000e+02 2.03000000e+02 6.25e-13 1.20e-15 1.46e-16 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.03000000e+02 Root relaxation: objective 2.030000e+02, 103 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 203.0000000 203.00000 0.0% - 0s Explored 0 nodes (120 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.030000000000e+02, best bound 2.030000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 203 Solution: 5 x [1, 32] 11 x [1, 33] 1 x [2] 4 x [2, 30] 4 x [2, 32] 13 x [3, 28] 12 x [4, 27] 10 x [5, 31] 2 x [6, 27] 2 x [6, 28] 17 x [7, 34] 11 x [7, 35] 1 x [8] 10 x [9, 25] 12 x [10, 26] 7 x [11, 24] 2 x [12] 1 x [12, 37] 1 x [13, 22] 7 x [13, 25] 5 x [14, 21] 3 x [14, 36, 37] 6 x [14, 37] 1 x [15] 8 x [15, 21] 2 x [15, 23] 2 x [15, 29] 7 x [16, 19] 5 x [16, 35, 36] 4 x [16, 36] 6 x [17] 18 x [17, 20] 3 x [18]