Example Couenne output

Couenne 0.5.4 -- an Open-Source solver for Mixed Integer Nonlinear Optimization
Mailing list: [email protected]
Instructions: http://www.coin-or.org/Couenne
couenne: bonmin.nlp_log_level=0
bonmin.bb_log_level=0

ANALYSIS TEST: Reformulating problem: Couenne: new cutoff value 1.0564981260e+04 (0.44 seconds)
0.4 seconds
NLP0012I 
              Num      Status      Obj             It       time                 Location
NLP0014I             1         OPT 175.62247       49 0.88
Couenne: new cutoff value 1.7562421414e+02 (1.328 seconds)
Loaded instance "/home/awright/.julia/v0.4/AmplNLWriter/.solverdata/tmpdvwGPN.nl"
Constraints:         2399
Variables:           3700 (0 integer)
Auxiliaries:            1 (8 integer)

Coin0506I Presolve 2969 (-64) rows, 3064 (-637) columns and 10314 (-40) elements
Clp0006I 0  Obj 174.6 Primal inf 92.609654 (954)
Clp0006I 134  Obj 174.6 Primal inf 71.739637 (825)
Clp0006I 268  Obj 174.6 Primal inf 51.0432 (661)
Clp0006I 402  Obj 174.6 Primal inf 26.390955 (479)
Clp0006I 536  Obj 174.6 Primal inf 8.1358765 (324)
Clp0006I 670  Obj 174.6 Primal inf 0.98316864 (184)
Clp0006I 804  Obj 174.6 Primal inf 6.0339331 (141)
Clp0006I 938  Obj 174.6 Primal inf 5.1897631 (113)
Clp0006I 1072  Obj 174.6 Primal inf 0.15553506 (45)
Clp0006I 1152  Obj 174.6
Clp0000I Optimal - objective value 174.6
Clp0006I 0  Obj 174.6 Primal inf 2.3293513e-05 (32)
Clp0006I 32  Obj 174.6
Clp0000I Optimal - objective value 174.6
Clp0032I Optimal objective 174.6 - 1184 iterations time 0.042, Presolve 0.00
Clp0000I Optimal - objective value 174.6
Cbc0012I Integer solution of 175.62421 found by Couenne Rounding NLP after 0 iterations and 0 nodes (0.00 seconds)
Cbc0011I Exiting as integer gap of 1.0242141 less than 0 or 1%
Cbc0001I Search completed - best objective 175.6242141388918, took 0 iterations and 0 nodes (0.01 seconds)
Cbc0035I Maximum depth 0, 0 variables fixed on reduced cost
Clp0006I 0  Obj 174.6 Primal inf 103.94707 (452)
Clp0006I 200  Obj 174.6 Primal inf 26.682174 (474)
Clp0006I 400  Obj 174.6 Primal inf 10.699626 (405)
Clp0006I 600  Obj 174.6 Primal inf 2.7481483 (352)
Clp0006I 800  Obj 174.6 Primal inf 0.90044662 (253)
Clp0006I 1000  Obj 175.15744 Primal inf 0.12377528 (146)
Clp0006I 1200  Obj 175.3813 Primal inf 0.0075064494 (10)
Clp0006I 1225  Obj 175.3813
Clp0000I Optimal - objective value 175.3813

 	"Finished"

Linearization cuts added at root node:       3033
Linearization cuts added in total:           3033  (separation time: 0.028s)
Total solve time:                           0.104s (0.104s in branch-and-bound)
Lower bound:                                174.6
Upper bound:                              175.624  (gap: 0.58%)
Branch-and-bound nodes:                         0
Performance of                           FBBT:	      0.028s,        3 runs. fix:          0 shrnk:    5087.29 ubd:          0 2ubd:        190 infeas:          0