Model name: '' - run #1 Objective: Maximize(R0) SUBMITTED Model size: 3524 constraints, 5927 variables, 15923 non-zeros. Sets: 0 GUB, 0 SOS. Using DUAL simplex for phase 1 and PRIMAL simplex for phase 2. The primal and dual simplex pricing strategy set to 'Devex'. Found feasibility by dual simplex after 3908 iter. Relaxed solution 25.2319917347 after 4464 iter is B&B base. Feasible solution 25.196955026 after 5713 iter, 114 nodes (gap 0.1%) Improved solution 25.196980837 after 5741 iter, 122 nodes (gap 0.1%) Improved solution 25.196980837 after 5752 iter, 124 nodes (gap 0.1%) Improved solution 25.197006648 after 5851 iter, 153 nodes (gap 0.1%) Improved solution 25.197032451 after 6271 iter, 241 nodes (gap 0.1%) Improved solution 25.197032451 after 6284 iter, 243 nodes (gap 0.1%) Improved solution 25.197058262 after 6398 iter, 272 nodes (gap 0.1%) Improved solution 25.19710988 after 6436 iter, 282 nodes (gap 0.1%) Improved solution 25.197109882 after 6565 iter, 310 nodes (gap 0.1%) Improved solution 25.197135691 after 6567 iter, 312 nodes (gap 0.1%) Improved solution 25.197161502 after 7553 iter, 522 nodes (gap 0.1%) Improved solution 25.198032447 after 10836 iter, 1185 nodes (gap 0.1%) Improved solution 25.198058258 after 10856 iter, 1190 nodes (gap 0.1%) Improved solution 25.198084069 after 10907 iter, 1206 nodes (gap 0.1%) Improved solution 25.19810988 after 11690 iter, 1379 nodes (gap 0.1%) Improved solution 25.198135689 after 12365 iter, 1512 nodes (gap 0.1%) Improved solution 25.1981615 after 12573 iter, 1580 nodes (gap 0.1%) Improved solution 25.198187303 after 14098 iter, 1910 nodes (gap 0.1%) Improved solution 25.198213114 after 14269 iter, 1964 nodes (gap 0.1%) Improved solution 25.198238913 after 18207 iter, 2820 nodes (gap 0.1%) Improved solution 25.198264724 after 18371 iter, 2874 nodes (gap 0.1%) Improved solution 25.198290523 after 23242 iter, 3948 nodes (gap 0.1%) Improved solution 25.198316334 after 23406 iter, 4002 nodes (gap 0.1%) Improved solution 25.199032455 after 28991 iter, 5220 nodes (gap 0.1%) Improved solution 25.199058266 after 29013 iter, 5225 nodes (gap 0.1%) Improved solution 25.199084077 after 29030 iter, 5231 nodes (gap 0.1%) Improved solution 25.199109884 after 42451 iter, 8280 nodes (gap 0.1%) Improved solution 25.199161498 after 43781 iter, 8546 nodes (gap 0.1%) Improved solution 25.199213108 after 75752 iter, 15824 nodes (gap 0.1%) Improved solution 25.199264718 after 126631 iter, 27810 nodes (gap 0.1%) Improved solution 25.199290517 after 188705 iter, 42796 nodes (gap 0.1%) Improved solution 25.199316328 after 188773 iter, 42816 nodes (gap 0.1%) Improved solution 25.199316336 after 212212 iter, 48869 nodes (gap 0.1%) Improved solution 25.199342135 after 213132 iter, 49089 nodes (gap 0.1%) Improved solution 25.199367946 after 213303 iter, 49131 nodes (gap 0.1%) Improved solution 25.2001615 after 224189 iter, 51391 nodes (gap 0.1%) Improved solution 25.20021311 after 229764 iter, 52689 nodes (gap 0.1%) Improved solution 25.20026472 after 240158 iter, 55203 nodes (gap 0.1%) Improved solution 25.20026472 after 240197 iter, 55216 nodes (gap 0.1%) Improved solution 25.200290519 after 252254 iter, 58201 nodes (gap 0.1%) Improved solution 25.20031633 after 252267 iter, 58205 nodes (gap 0.1%) Improved solution 25.200342129 after 266443 iter, 61709 nodes (gap 0.1%) Improved solution 25.20036794 after 266456 iter, 61713 nodes (gap 0.1%) Improved solution 25.200393745 after 282694 iter, 65388 nodes (gap 0.1%) Improved solution 25.20041955 after 311859 iter, 72131 nodes (gap 0.1%) Improved solution 25.200445355 after 346918 iter, 80176 nodes (gap 0.1%) Improved solution 25.20047116 after 385703 iter, 89129 nodes (gap 0.1%) Improved solution 25.200471162 after 591605 iter, 136525 nodes (gap 0.1%) Improved solution 25.200496965 after 677660 iter, 156676 nodes (gap 0.1%) Improved solution 25.200522772 after 697782 iter, 161397 nodes (gap 0.1%) Improved solution 25.200548575 after 1163988 iter, 269220 nodes (gap 0.1%) Improved solution 25.200574382 after 1191540 iter, 275699 nodes (gap 0.1%) Improved solution 25.200600185 after 1733769 iter, 400848 nodes (gap 0.1%) Improved solution 25.200625992 after 1763621 iter, 407883 nodes (gap 0.1%) lp_solve optimization was stopped due to time-out. Optimal solution 25.200625992 after 2109014 iter, 488145 nodes (gap 0.1%). Excellent numeric accuracy ||*|| = 3.55271e-15 MEMO: lp_solve version 5.5.0.10 for 32 bit OS, with 64 bit REAL variables. In the total iteration count 2109014, 214378 (10.2%) were bound flips. There were 244053 refactorizations, 0 triggered by time and 3 by density. ... on average 7.8 major pivots per refactorization. The largest [LUSOL v2.2.1.0] fact(B) had 10120 NZ entries, 1.0x largest basis. The maximum B&B level was 129, 0.1x MIP order, 93 at the optimal solution. The constraint matrix inf-norm is 128, with a dynamic range of 128000. Time to load data was 0.063 seconds, presolve used 0.035 seconds, ... 7199.970 seconds in simplex solver, in total 7200.068 seconds. Model name: '' - run #1 Objective: Maximize(R0) SUBMITTED Model size: 3524 constraints, 5927 variables, 15923 non-zeros. Sets: 0 GUB, 0 SOS. Using DUAL simplex for phase 1 and PRIMAL simplex for phase 2. The primal and dual simplex pricing strategy set to 'Devex'. Found feasibility by dual simplex after 2 iter. Relaxed solution 0 after 1558 iter is B&B base. Feasible solution 0 after 1558 iter, 0 nodes (gap 0.0%) Optimal solution 0 after 1558 iter, 0 nodes (gap 0.0%). Excellent numeric accuracy ||*|| = 0 MEMO: lp_solve version 5.5.0.10 for 32 bit OS, with 64 bit REAL variables. In the total iteration count 1558, 0 (0.0%) were bound flips. There were 8 refactorizations, 0 triggered by time and 0 by density. ... on average 194.8 major pivots per refactorization. The largest [LUSOL v2.2.1.0] fact(B) had 6528 NZ entries, 1.0x largest basis. The maximum B&B level was 1, 0.0x MIP order, 1 at the optimal solution. The constraint matrix inf-norm is 128, with a dynamic range of 128000. Time to load data was 0.064 seconds, presolve used 0.045 seconds, ... 5.669 seconds in simplex solver, in total 5.778 seconds. Vehicle Type: 0 Num:81 Trip segments:184