Build (method = -2) #dp: 1084 Step-3' Graph: 188 vertices and 650 arcs (0.00s) Step-4' Graph: 174 vertices and 622 arcs (0.01s) #V4/#V3 = 0.93 #A4/#A3 = 0.96 Ready! (0.01s) Optimize a model with 184 rows, 623 columns and 1540 nonzeros Presolve removed 41 rows and 74 columns Presolve time: 0.01s Presolved: 143 rows, 549 columns, 1412 nonzeros Variable types: 0 continuous, 549 integer (0 binary) Found heuristic solution: objective 1000.0000000 Optimize a model with 143 rows, 549 columns and 1412 nonzeros Presolved: 143 rows, 549 columns, 1412 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.070e+02 Factor NZ : 3.103e+03 Factor Ops : 8.248e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.52207739e+03 -7.09503867e+04 6.01e+04 2.22e-16 3.82e+02 0s 1 1.43755032e+03 -3.42014054e+04 9.93e+03 5.55e-16 7.47e+01 0s 2 1.01781577e+03 -8.75441258e+03 1.28e+03 6.38e-16 1.23e+01 0s 3 9.36466891e+02 -9.74308827e+02 1.99e+01 5.27e-16 1.76e+00 0s 4 7.52829352e+02 -4.35255281e+02 5.75e+00 3.99e-16 1.08e+00 0s 5 6.77663371e+02 -4.04587891e+02 4.13e+00 4.44e-16 9.85e-01 0s 6 6.36864950e+02 5.12566147e+01 3.18e+00 3.77e-16 5.33e-01 0s 7 4.87569876e+02 2.44175822e+02 1.13e+00 2.66e-16 2.21e-01 0s 8 4.25590295e+02 3.94380140e+02 1.65e-01 3.33e-16 2.84e-02 0s 9 4.14079644e+02 4.13954981e+02 1.11e-03 3.95e-16 1.14e-04 0s 10 4.14000081e+02 4.13999955e+02 1.08e-12 2.53e-16 1.14e-07 0s 11 4.14000000e+02 4.14000000e+02 4.26e-13 3.33e-16 1.14e-10 0s 12 4.14000000e+02 4.14000000e+02 1.09e-13 2.19e-16 1.14e-13 0s Barrier solved model in 12 iterations and 0.01 seconds Optimal objective 4.14000000e+02 Root relaxation: objective 4.140000e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 414.0000000 414.00000 0.0% - 0s Explored 0 nodes (375 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 4.140000000000e+02, best bound 4.140000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.02 seconds Total run time: 0.04 seconds Objective: 414 Solution: 8 x [2] 86 x [1, 2, 8, 9] 72 x [8, 10] 2 x [1, 1, 8, 10] 37 x [7] 58 x [6, 7] 1 x [6, 6, 7, 9] 14 x [6, 6, 6, 7, 9] 29 x [3, 3, 7] 2 x [7, 9] 32 x [4] 15 x [4, 5] 58 x [4, 6]