Good day,
I am using SBB solver for a MINLP problem, I have recently faced this problem. I appreciate any suggestion,
It fails during evaluation.
Thank you very much,
Br.
This is the output:
S O L V E S U M M A R Y
MODEL SSPI_pres OBJECTIVE NPV
TYPE MINLP DIRECTION MAXIMIZE
SOLVER SBB FROM LINE 2286
**** SOLVER STATUS 13 System Failure
**** MODEL STATUS 13 Error No Solution
**** OBJECTIVE VALUE NA
RESOURCE USAGE, LIMIT NA 1000.000
ITERATION COUNT, LIMIT NA 2000000000
EVALUATION ERRORS NA 0
Simple B&B
No solution returned
Solution Report SOLVE Using MINLP From line 2286
**** SOLVER STATUS FILE LISTED BELOW
=0 Simple B&B x86_64/MS Windows
=1
Simple B&B x86_64/MS Windows
=2
18310 columns (176 discrete), 42000 rows, 109758 nonzeros
Root node solved locally optimal.
Node Act. Lev. Objective IInf Best Int. Best Bound Gap (22 secs)
0 2 0 74351.5384 89 - 74351.5384 -
1 3 1 74351.3619 88 - 74351.5384 -
2 4 2 74351.1854 87 - 74351.5384 -
132 102 101 4245.8313 2 - 74351.5384 -
133 103 102 3118.5349 1 - 74351.5384 -
- 134 102 103 1840.3132 0 1840.3132 74351.5384 0.975248
135 103 1 74270.8116 88 1840.3132 74351.3619 0.975248
136 104 2 74270.6351 87 1840.3132 74351.1854 0.975248
137 105 3 74270.4586 86 1840.3132 74351.0089 0.975248
138 106 4 74270.2821 86 1840.3132 74350.8331 0.975248
139 107 5 58279.8555 82 1840.3132 74350.8331 0.975248
Node Act. Lev. Objective IInf Best Int. Best Bound Gap (160 secs)
140 108 6 58120.2422 79 1840.3132 74350.8331 0.975248
424 384 48 73532.4790 73 1840.3132 73874.8275 0.975089
425 385 48 73654.5398 74 1840.3132 73872.6918 0.975088
426 386 51 73540.9681 79 1840.3132 73872.6918 0.975088
*** Saverecord: 206
*** Bounds:
0: 0.00 1.00
1: 0.00 1.00
2: 0.00 1.00
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