Build (method = -2) #dp: 430 Step-3' Graph: 94 vertices and 275 arcs (0.00s) Step-4' Graph: 49 vertices and 185 arcs (0.00s) #V4/#V3 = 0.52 #A4/#A3 = 0.67 Ready! (0.00s) Optimize a model with 69 rows, 186 columns and 464 nonzeros Presolve removed 14 rows and 19 columns Presolve time: 0.00s Presolved: 55 rows, 167 columns, 423 nonzeros Variable types: 0 continuous, 167 integer (0 binary) Found heuristic solution: objective 301.0000000 Found heuristic solution: objective 291.0000000 Optimize a model with 55 rows, 167 columns and 423 nonzeros Presolved: 55 rows, 167 columns, 423 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.730e+02 Factor NZ : 8.900e+02 Factor Ops : 1.685e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.37384813e+03 -5.06872812e+03 5.50e+03 1.11e-16 8.63e+01 0s 1 6.04498098e+02 -1.91711521e+03 1.04e+03 4.44e-16 1.76e+01 0s 2 3.04001505e+02 -5.12099229e+02 5.90e+01 6.00e-15 2.78e+00 0s 3 2.49978118e+02 5.08547259e+01 1.10e+00 1.55e-15 5.82e-01 0s 4 2.22274053e+02 1.35139548e+02 1.36e-03 8.88e-16 2.53e-01 0s 5 2.15200888e+02 1.84687067e+02 6.25e-04 2.22e-16 8.87e-02 0s 6 2.07319373e+02 1.99738810e+02 1.52e-04 1.46e-16 2.20e-02 0s 7 2.06051248e+02 2.05905694e+02 3.16e-06 4.44e-16 4.23e-04 0s 8 2.06000052e+02 2.05999905e+02 1.93e-12 2.50e-16 4.26e-07 0s 9 2.06000000e+02 2.06000000e+02 7.38e-12 1.78e-16 4.26e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.06000000e+02 Root relaxation: objective 2.060000e+02, 82 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 206.0000000 206.00000 0.0% - 0s Explored 0 nodes (82 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.060000000000e+02, best bound 2.060000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 206 Solution: 19 x [8, 9] 35 x [4] 17 x [13, 16] 8 x [1] 23 x [1, 11] 2 x [1, 12] 1 x [1, 17] 4 x [3, 5] 8 x [5, 11] 11 x [5, 7] 3 x [5, 7, 15] 4 x [18, 19] 10 x [9, 16, 19] 7 x [6, 7, 19] 25 x [14, 15] 2 x [14, 17] 9 x [10, 20] 12 x [2, 10] 6 x [2, 10, 17]