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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Hi Paolo,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Thank you for your interest in CMPL.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>There is a mistake in your constraint. You used a parameter in the set pattern matching ({s in Arcs *> <b>b [w,*]</b> ) where only a pattern is expected.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Please use:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>csnt_2 {w in Nodes : sum{s in Arcs *> [w,*] : b[w,s]} <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'> - sum{s in Arcs *> [*,w] : b[s,w]} = bal[w]; }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Cheers,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Mike<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></a></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Von:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Cmpl [mailto:cmpl-bounces@coin-or.org] <b>Im Auftrag von </b>Paolo Grossi<br><b>Gesendet:</b> Freitag, 6. Mai 2016 11:44<br><b>An:</b> cmpl@list.coin-or.org<br><b>Betreff:</b> [Cmpl] Problem with "unexpected SYMBOL_VAR"<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Good morning,<o:p></o:p></p></div><div><p class=MsoNormal>We are working on a University of Pisa project.<o:p></o:p></p></div><div><p class=MsoNormal>First of all, we are dealing with CMPL model.<o:p></o:p></p></div><div><p class=MsoNormal>So, thanks in advance for your help!<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Using:<o:p></o:p></p></div><div><p class=MsoNormal><a href="http://cmpl.th-wildau.de/cmpl-net.php">http://cmpl.th-wildau.de/cmpl-net.php</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>To try few very basic examples, like the following:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>########################################<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>parameters:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Nodes := set(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);<o:p></o:p></p></div><div><p class=MsoNormal>bal[Nodes] := (-397.57, 136.639, 0, 137.667, 123.265, 0, 0, 0, 0, 0);<o:p></o:p></p></div><div><p class=MsoNormal>v[Nodes] := (9999999999, 200000, 200000, 200000, 200000, 200000, 200000, 200000, 200000, 200000);<o:p></o:p></p></div><div><p class=MsoNormal>Arcs := set([1, 5], [3, 7], [4, 8], [2, 5], [6, 8], [9, 8], [0, 2], [0, 5], <o:p></o:p></p></div><div><p class=MsoNormal> [5, 1], [7, 3], [8, 4], [5, 2], [8, 6], [8, 9], [2, 0], [5, 0]);<o:p></o:p></p></div><div><p class=MsoNormal>f[Arcs] := (42314, 22802.8, 58790.7, 11875.2, 93940, 58777.3, 114089, 121121, <o:p></o:p></p></div><div><p class=MsoNormal> 42314, 22802.8, 58790.7, 11875.2, 93940, 58777.3, 114089, 121121);<o:p></o:p></p></div><div><p class=MsoNormal>B := 100;<o:p></o:p></p></div><div><p class=MsoNormal>k := 4;<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>variables:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>x[Nodes,Nodes] : binary;<o:p></o:p></p></div><div><p class=MsoNormal>o[Nodes]: binary;<o:p></o:p></p></div><div><p class=MsoNormal>b[Arcs] : real[0..B];<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>objectives:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>costs: sum{[w,s] in Arcs: x[w,s]*f[w,s]} + sum{w in Nodes: o[w]*v[w]} -> min;<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>constraints:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>csnt_1 {w in Nodes : sum{s in Nodes, s != w: x[w,s]} <= 2 + o[w]*(k-2); } <o:p></o:p></p></div><div><p class=MsoNormal>csnt_2 {w in Nodes : sum{s in Arcs *> b[w,*] : b[w,s]} <o:p></o:p></p></div><div><p class=MsoNormal> - sum{s in Arcs *> b[*,w] : b[s,w]} = bal[w]; }<o:p></o:p></p></div><div><p class=MsoNormal>csnt_3 {[w,s] in Arcs: b[w,s] + b[s,w] <= B*x[w,s]; }<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>########################################<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>We receive this error regarding the flow conservation constraints (named as "csnt_2"):<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>error (compiler): file clp-5574.cmpl line 26: syntax error, unexpected SYMBOL_VAR<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Best regards,<o:p></o:p></p></div><div><p class=MsoNormal>Paolo Grossi.<o:p></o:p></p></div></div></div></body></html>