MINLP World [ MINLP World Home | Board | Solvers | MINLPLib | Links | GamsWorld Group | Search | Contact ]

alan.gms:

References:

Point: p1 
Best known point (p1): Solution value 2.93 (global optimum, BARON certificate)


$offlisting * MINLP written by GAMS Convert at 04/18/01 12:05:57 * * Equation counts * Total E G L N X * 8 3 0 5 0 0 * * Variable counts * x b i s1s s2s sc si * Total cont binary integer sos1 sos2 scont sint * 9 5 4 0 0 0 0 0 * FX 0 0 0 0 0 0 0 0 * * Nonzero counts * Total const NL DLL * 24 21 3 0 * * Solve m using MINLP minimizing objvar; Variables x1,x2,x3,x4,objvar,b6,b7,b8,b9; Positive Variables x1,x2,x3,x4; Binary Variables b6,b7,b8,b9; Equations e1,e2,e3,e4,e5,e6,e7,e8; e1.. x1 + x2 + x3 + x4 =E= 1; e2.. 8*x1 + 9*x2 + 12*x3 + 7*x4 =E= 10; e3.. x1*(4*x1 + 3*x2 - x3) + x2*(3*x1 + 6*x2 + x3) + x3*(x2 - x1 + 10*x3) - objvar =E= 0; e4.. x1 - b6 =L= 0; e5.. x2 - b7 =L= 0; e6.. x3 - b8 =L= 0; e7.. x4 - b9 =L= 0; e8.. b6 + b7 + b8 + b9 =L= 3; * set non default bounds $if set nostart $goto modeldef * set non default levels x1.l = 0.302884615384618; x2.l = 0.0865384615384593; x3.l = 0.504807692307693; x4.l = 0.10576923076923; objvar.l = 2.89903846153846; * set non default marginals e1.m = 1; e2.m = 1; e3.m = 1; x1.m = 1; x2.m = 1; $label modeldef Model m / all /; m.limrow=1; m.limcol=0; $if NOT '%gams.u1%' == '' $include '%gams.u1%' $if not set MINLP $set MINLP MINLP Solve m using %MINLP% minimizing objvar;