Build (method = -2) #dp: 3293 Step-3' Graph: 153 vertices and 450 arcs (0.02s) Step-4' Graph: 19 vertices and 182 arcs (0.02s) #V4/#V3 = 0.12 #A4/#A3 = 0.40 Ready! (0.02s) Optimize a model with 65 rows, 183 columns and 517 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 63 rows, 181 columns, 513 nonzeros Variable types: 0 continuous, 181 integer (54 binary) Found heuristic solution: objective 80.0000000 Optimize a model with 63 rows, 181 columns and 513 nonzeros Presolved: 63 rows, 181 columns, 513 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.970e+02 Factor NZ : 6.660e+02 Factor Ops : 1.206e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.44732452e+02 -2.75755926e+02 5.04e+01 3.31e-02 2.98e+00 0s 1 5.77325978e+01 -9.99301926e+01 1.78e-13 4.44e-16 4.18e-01 0s 2 3.64188172e+01 2.06163001e+01 2.35e-14 2.22e-16 4.09e-02 0s 3 3.33444383e+01 3.32264797e+01 2.28e-13 2.22e-16 3.02e-04 0s 4 3.33333445e+01 3.33332265e+01 1.26e-13 1.20e-16 3.02e-07 0s 5 3.33333333e+01 3.33333333e+01 1.32e-13 2.22e-16 3.03e-13 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 3.33333333e+01 Root relaxation: objective 3.333333e+01, 124 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33.33333 0 4 80.00000 33.33333 58.3% - 0s H 0 0 34.0000000 33.33333 1.96% - 0s Explored 0 nodes (176 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 34 Solution: 2 x [34, 45, 46] 1 x [28, 28, 44] 1 x [30, 42, 43] 3 x [18, 23, 41] 1 x [29, 39, 40] 2 x [5, 26, 38] 1 x [25, 35, 37] 4 x [8, 27, 36] 2 x [12, 14, 36] 3 x [1, 20, 33] 2 x [6, 10, 32] 1 x [15, 27, 31] 1 x [30] 2 x [11, 21, 24] 1 x [10, 19, 22] 1 x [10, 15, 17] 1 x [10, 13, 16] 3 x [2, 3, 15] 1 x [7, 9, 10] 1 x [1, 4, 10]