Build (method = -2) #dp: 4595 Step-3' Graph: 285 vertices and 1097 arcs (0.02s) Step-4' Graph: 275 vertices and 1077 arcs (0.02s) #V4/#V3 = 0.96 #A4/#A3 = 0.98 Ready! (0.02s) Optimize a model with 295 rows, 1078 columns and 2770 nonzeros Presolve removed 50 rows and 86 columns Presolve time: 0.01s Presolved: 245 rows, 992 columns, 2614 nonzeros Variable types: 0 continuous, 992 integer (0 binary) Found heuristic solution: objective 1676.0000000 Optimize a model with 245 rows, 992 columns and 2614 nonzeros Presolved: 245 rows, 992 columns, 2614 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.685e+03 Factor NZ : 7.537e+03 Factor Ops : 3.357e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.04193591e+03 -5.27038633e+04 4.68e+04 2.22e-16 1.80e+02 0s 1 2.20968860e+03 -2.72161796e+04 5.45e+03 5.55e-16 3.00e+01 0s 2 1.85284734e+03 -4.06931350e+03 3.93e+02 8.88e-16 3.65e+00 0s 3 1.70038252e+03 -4.00194217e+02 1.99e+01 4.16e-16 1.07e+00 0s 4 1.55232905e+03 7.76168119e+02 1.59e+00 3.09e-16 3.90e-01 0s 5 1.48707093e+03 1.31957258e+03 3.89e-01 3.47e-16 8.41e-02 0s 6 1.45864918e+03 1.42366749e+03 1.77e-02 3.65e-16 1.75e-02 0s 7 1.45651261e+03 1.45364796e+03 6.20e-05 2.40e-16 1.44e-03 0s 8 1.45650001e+03 1.45649715e+03 1.68e-11 2.67e-16 1.44e-06 0s 9 1.45650000e+03 1.45650000e+03 4.60e-12 3.09e-16 1.44e-09 0s 10 1.45650000e+03 1.45650000e+03 1.95e-12 2.26e-16 1.44e-12 0s Barrier solved model in 10 iterations and 0.01 seconds Optimal objective 1.45650000e+03 Root relaxation: objective 1.456500e+03, 548 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1456.50000 0 3 1676.00000 1456.50000 13.1% - 0s H 0 0 1457.0000000 1456.50000 0.03% - 0s Explored 0 nodes (655 simplex iterations) in 0.05 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.457000000000e+03, best bound 1.457000000000e+03, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.05 seconds Total run time: 0.08 seconds Objective: 1457 Solution: 107 x [17] 97 x [7] 135 x [4] 1 x [4, 5, 5] 7 x [4, 5, 5, 5] 192 x [10] 27 x [8, 8, 8, 8, 8, 8, 8, 10] 71 x [11] 35 x [1, 11] 15 x [11, 19] 164 x [15] 49 x [12, 15] 171 x [9] 64 x [9, 18] 3 x [9, 20] 185 x [14] 21 x [13, 14] 1 x [2, 14] 32 x [2, 2, 14] 4 x [14, 16] 75 x [3, 6] 1 x [3]