Build (method = -2) #dp: 392 Step-3' Graph: 32 vertices and 110 arcs (0.00s) Step-4' Graph: 12 vertices and 70 arcs (0.00s) #V4/#V3 = 0.38 #A4/#A3 = 0.64 Ready! (0.00s) Optimize a model with 50 rows, 71 columns and 193 nonzeros Presolve removed 38 rows and 43 columns Presolve time: 0.00s Presolved: 12 rows, 28 columns, 68 nonzeros Variable types: 0 continuous, 28 integer (6 binary) Found heuristic solution: objective 40.0000000 Found heuristic solution: objective 36.0000000 Found heuristic solution: objective 34.0000000 Optimize a model with 12 rows, 28 columns and 68 nonzeros Presolved: 12 rows, 28 columns, 68 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.100e+01 Factor NZ : 7.800e+01 Factor Ops : 6.500e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.14397988e+02 -6.22204038e+01 1.17e+01 2.22e-16 6.39e+00 0s 1 4.48886277e+01 8.84112682e+00 5.35e-01 2.78e-16 6.88e-01 0s 2 3.82886309e+01 2.39662907e+01 5.60e-02 2.44e-15 2.41e-01 0s 3 3.41683061e+01 3.12666688e+01 1.72e-15 2.22e-16 4.84e-02 0s 4 3.30551367e+01 3.27637277e+01 5.44e-15 2.22e-16 4.86e-03 0s 5 3.30003826e+01 3.29990651e+01 4.55e-15 2.22e-16 2.20e-05 0s 6 3.30000000e+01 3.30000000e+01 1.22e-14 1.11e-16 2.71e-11 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 3.30000000e+01 Root relaxation: objective 3.300000e+01, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 33.0000000 33.00000 0.0% - 0s Explored 0 nodes (14 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 33 Solution: 1 x [38] 1 x [37] 3 x [36] 1 x [35] 1 x [34] 2 x [33] 2 x [32] 1 x [31] 1 x [1, 30] 1 x [29] 1 x [2, 28] 3 x [27] 1 x [5, 26] 1 x [6, 25] 2 x [7, 24] 1 x [8, 23] 1 x [4, 22] 1 x [9, 21] 1 x [10, 20] 1 x [13, 19] 1 x [12, 18] 2 x [11, 17] 1 x [14, 16] 1 x [3, 15] 1 x [3, 10]