Build (method = -2) #dp: 1378 Step-3' Graph: 73 vertices and 235 arcs (0.01s) Step-4' Graph: 38 vertices and 165 arcs (0.01s) #V4/#V3 = 0.52 #A4/#A3 = 0.70 Ready! (0.01s) Optimize a model with 48 rows, 166 columns and 431 nonzeros Presolve removed 13 rows and 24 columns Presolve time: 0.00s Presolved: 35 rows, 142 columns, 395 nonzeros Variable types: 0 continuous, 142 integer (0 binary) Found heuristic solution: objective 812.0000000 Found heuristic solution: objective 670.0000000 Optimize a model with 35 rows, 142 columns and 395 nonzeros Presolved: 35 rows, 142 columns, 395 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.060e+02 Factor NZ : 5.130e+02 Factor Ops : 9.177e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.83253748e+03 -2.13605654e+04 1.15e+04 2.22e-16 4.54e+02 0s 1 1.80519887e+03 -9.37024942e+03 1.42e+03 4.44e-16 7.16e+01 0s 2 7.74457474e+02 -2.02717734e+03 5.87e+01 3.33e-16 1.02e+01 0s 3 3.75718645e+02 -2.93614224e+02 1.25e+00 4.44e-16 2.28e+00 0s 4 1.94595839e+02 -5.13641587e+01 3.31e-01 2.26e-16 8.38e-01 0s 5 1.90197413e+02 1.06664026e+02 1.25e-01 2.42e-16 2.84e-01 0s 6 1.67826933e+02 1.64861797e+02 6.37e-03 3.33e-16 1.01e-02 0s 7 1.66666723e+02 1.66666528e+02 3.20e-07 3.33e-16 6.63e-07 0s 8 1.66666667e+02 1.66666667e+02 9.12e-13 2.22e-16 6.63e-10 0s Barrier solved model in 8 iterations and 0.00 seconds Optimal objective 1.66666667e+02 Root relaxation: objective 1.666667e+02, 92 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 166.66667 0 15 670.00000 166.66667 75.1% - 0s H 0 0 167.0000000 166.66667 0.20% - 0s Explored 0 nodes (108 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.670000000000e+02, best bound 1.670000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 167 Solution: 47 x [1, 3, 3, 6, 7, 9] 11 x [3, 3, 7, 9, 9, 10] 4 x [1, 4, 7, 9, 10, 10] 7 x [1, 4, 7, 8, 9, 9] 38 x [2, 4, 7, 8, 9, 10] 1 x [4, 7, 8, 9] 2 x [1, 4, 5, 7, 7, 9] 31 x [1, 3, 3, 5, 6, 9] 26 x [1, 2, 8, 9, 10, 10]