[Cbc] lp file solve with missing variables
Haroldo Gambini Santos
haroldo.santos at gmail.com
Thu Jan 19 08:14:31 EST 2017
Hi Andres,
CBC only prints the value of the non-zero variables.
Cheers
Em 18/01/2017 09:06, andres.botero at siemens.com escreveu:
>
> Dear cbc List members,
>
> I am trying to solve the following problem (see lp string) with the
> precompiled binary implementation of cbc from command line with
>
> "cbc LPfile.lp solve solu result.txt"
>
> and save the results to result.txt.
>
> I have read the syntax conventions for the lp format and have tested
> them but there seems to be something I am missing.
>
> Namely for the problem at hand the solver computes a solution but some
> of the variables are omitted. See the result.txt string.
>
> I would appreciate it if you could give me a hand with this.
>
> Cheers
>
> Andres Botero
>
> result.txt ->
>
> Optimal - objective value -290.01846652
>
> 0 d_1_1 30 -2.8870637
>
> 1 d_1_2 30 -1.1615686
>
> 2 d_1_3 30 -0.32764755
>
> 8 s_1_1 -10 4.2054192
>
> 9 s_1_2 -10 3.4716999
>
> 10 s_1_3 -10 2.3071445
>
> 11 s_1_4 -10 2.4836672
>
> 12 s_1_5 10 -0.45423134
>
> 13 s_1_6 -10 0.49643242
>
> 14 s_1_7 -10 0.72041283
>
> 15 s_1_8 -10 1.7339998
>
> 17 _m017_17_1_8 1 0
>
> 23 _m017_17_1_6 1 0
>
> 24 _m017_17_1_7 1 0
>
> End of result.txt
>
> LPfile.lp ->
>
> Minimize
>
> Obj:
>
> -2.887063738 d_1_1 -1.16156855416 d_1_2 -0.327647549501 d_1_3
> +4.01724084034 d_1_4 +7.05847536308 d_1_5 +7.67583722639 d_1_6
> +10.4888813123 d_1_7 +11.9564251804 d_1_8 +4.2054191528 s_1_1
> +3.47169990806 s_1_2 +2.30714448089 s_1_3 +2.48366723813 s_1_4
> -0.454231341303 s_1_5 +0.496432419695 s_1_6 +0.720412825165 s_1_7
> +1.73399976052 s_1_8
>
> Subject To
>
> _m016_16_1_1 - _m017_17_1_8 <= 0.
>
> _m016_16_1_2 - _m017_17_1_8 <= 0.
>
> _m016_16_1_3 - _m017_17_1_8 <= 0.
>
> _m016_16_1_4 - _m017_17_1_8 <= 0.
>
> _m016_16_1_5 - _m017_17_1_8 <= 0.
>
> _m016_16_1_6 - _m017_17_1_6 <= 0.
>
> _m016_16_1_6 - _m017_17_1_7 <= 0.
>
> _m016_16_1_6 - _m017_17_1_8 <= 0.
>
> _m016_16_1_7 - _m017_17_1_7 <= 0.
>
> _m016_16_1_7 - _m017_17_1_8 <= 0.
>
> _m016_16_1_8 - _m017_17_1_8 <= 0.
>
> Bounds
>
> 0. <= d_1_1 <= 30.
>
> 0. <= d_1_2 <= 30.
>
> 0. <= d_1_3 <= 30.
>
> 0. <= d_1_4 <= 30.
>
> 0. <= d_1_5 <= 30.
>
> 0. <= d_1_6 <= 30.
>
> 0. <= d_1_7 <= 30.
>
> 0. <= d_1_8 <= 30.
>
> -10. <= s_1_1 <= 10.
>
> -10. <= s_1_2 <= 10.
>
> -10. <= s_1_3 <= 10.
>
> -10. <= s_1_4 <= 10.
>
> -10. <= s_1_5 <= 10.
>
> -10. <= s_1_6 <= 10.
>
> -10. <= s_1_7 <= 10.
>
> -10. <= s_1_8 <= 10.
>
> Binary
>
> _m001_1_1_1 _m001_1_1_2 _m001_1_1_3 _m001_1_1_4 _m001_1_1_5
> _m001_1_1_6 _m001_1_1_7 _m001_1_1_8 _m002_2_1_1 _m002_2_1_2
> _m002_2_1_3 _m002_2_1_4 _m002_2_1_5 _m002_2_1_6 _m002_2_1_7
> _m002_2_1_8 _m003_3_1_1 _m003_3_1_2 _m003_3_1_3 _m003_3_1_4
> _m003_3_1_5 _m007_7_1_5 _m003_3_1_6 _m007_7_1_6 _m003_3_1_7
> _m007_7_1_7 _m003_3_1_8 _m007_7_1_8 _m004_4_1_1 _m004_4_1_2
> _m004_4_1_3 _m004_4_1_4 _m004_4_1_5 _m004_4_1_6 _m004_4_1_7
> _m004_4_1_8 _m005_5_1_1 _m005_5_1_2 _m005_5_1_3 _m005_5_1_4
> _m005_5_1_5 _m005_5_1_6 _m005_5_1_7 _m005_5_1_8 _m006_6_1_1
> _m006_6_1_2 _m006_6_1_3 _m006_6_1_4 _m006_6_1_5 _m006_6_1_6
> _m006_6_1_7 _m006_6_1_8 _m007_7_1_1 _m007_7_1_2 _m007_7_1_3
> _m007_7_1_4 _m008_8_1_1 _m008_8_1_2 _m008_8_1_3 _m008_8_1_4
> _m008_8_1_5 _m008_8_1_6 _m008_8_1_7 _m008_8_1_8 _m009_9_1_1
> _m009_9_1_2 _m009_9_1_3 _m009_9_1_4 _m009_9_1_5 _m009_9_1_6
> _m009_9_1_7 _m009_9_1_8 _m010_10_1_1 _m010_10_1_2 _m010_10_1_3
> _m010_10_1_4 _m010_10_1_5 _m010_10_1_6 _m010_10_1_7 _m010_10_1_8
> _m011_11_1_1 _m011_11_1_2 _m011_11_1_3 _m011_11_1_4 _m011_11_1_5
> _m015_15_1_5 _m011_11_1_6 _m015_15_1_6 _m011_11_1_7 _m015_15_1_7
> _m011_11_1_8 _m015_15_1_8 _m012_12_1_1 _m012_12_1_2 _m012_12_1_3
> _m012_12_1_4 _m012_12_1_5 _m012_12_1_6 _m012_12_1_7 _m012_12_1_8
> _m013_13_1_1 _m013_13_1_2 _m013_13_1_3 _m013_13_1_4 _m013_13_1_5
> _m013_13_1_6 _m013_13_1_7 _m013_13_1_8 _m014_14_1_1 _m014_14_1_2
> _m014_14_1_3 _m014_14_1_4 _m014_14_1_5 _m014_14_1_6 _m014_14_1_7
> _m014_14_1_8 _m015_15_1_1 _m015_15_1_2 _m015_15_1_3 _m015_15_1_4
> _m016_16_1_1 _m016_16_1_2 _m016_16_1_3 _m016_16_1_4 _m016_16_1_5
> _m016_16_1_6 _m016_16_1_7 _m016_16_1_8 _m017_17_1_1 _m017_17_1_2
> _m017_17_1_3 _m017_17_1_4 _m017_17_1_5 _m017_17_1_6 _m017_17_1_7
> _m017_17_1_8
>
> Integer
>
> End
>
> End of LPfile.lp
>
> With best regards,
> Andres Botero Halblaub
>
> Siemens AG
> Digital Factory Division
> Technology and Innovations
>
>
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>
>
>
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--
==================================================
Haroldo Gambini Santos
D.Sc, Computer Science
Universidade Federal de Ouro Preto
http://www.decom.ufop.br/haroldo/
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