$offlisting * * Equation counts * Total E G L N X C B * 21 0 0 21 0 0 0 0 * * Variable counts * x b i s1s s2s sc si * Total cont binary integer sos1 sos2 scont sint * 13 13 0 0 0 0 0 0 * FX 0 * * Nonzero counts * Total const NL DLL * 87 27 60 0 * * Solve m using NLP maximizing objvar; Variables x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,objvar; Positive Variables x4,x5,x6,x7,x8,x9,x10,x11,x12; Equations e1,e2,e3,e4,e5,e6,e7,e8,e9,e10,e11,e12,e13,e14,e15,e16,e17,e18,e19 ,e20,e21; e1.. 2*x1*x2 - x1*x1 - x2*x2 - x7*x7 + 2*x7*x8 - x8*x8 + objvar =L= 0; e2.. 2*x1*x3 - x1*x1 - x3*x3 - x7*x7 + 2*x7*x9 - x9*x9 + objvar =L= 0; e3.. 2*x1*x4 - x1*x1 - x4*x4 - x7*x7 + 2*x7*x10 - x10*x10 + objvar =L= 0; e4.. 2*x1*x5 - x1*x1 - x5*x5 - x7*x7 + 2*x7*x11 - x11*x11 + objvar =L= 0; e5.. 2*x1*x6 - x1*x1 - x6*x6 - x7*x7 + 2*x7*x12 - x12*x12 + objvar =L= 0; e6.. 2*x2*x3 - x2*x2 - x3*x3 - x8*x8 + 2*x8*x9 - x9*x9 + objvar =L= 0; e7.. 2*x2*x4 - x2*x2 - x4*x4 - x8*x8 + 2*x8*x10 - x10*x10 + objvar =L= 0; e8.. 2*x2*x5 - x2*x2 - x5*x5 - x8*x8 + 2*x8*x11 - x11*x11 + objvar =L= 0; e9.. 2*x2*x6 - x2*x2 - x6*x6 - x8*x8 + 2*x8*x12 - x12*x12 + objvar =L= 0; e10.. 2*x3*x4 - x3*x3 - x4*x4 - x9*x9 + 2*x9*x10 - x10*x10 + objvar =L= 0; e11.. 2*x3*x5 - x3*x3 - x5*x5 - x9*x9 + 2*x9*x11 - x11*x11 + objvar =L= 0; e12.. 2*x3*x6 - x3*x3 - x6*x6 - x9*x9 + 2*x9*x12 - x12*x12 + objvar =L= 0; e13.. 2*x4*x5 - x4*x4 - x5*x5 - x10*x10 + 2*x10*x11 - x11*x11 + objvar =L= 0; e14.. 2*x4*x6 - x4*x4 - x6*x6 - x10*x10 + 2*x10*x12 - x12*x12 + objvar =L= 0; e15.. 2*x5*x6 - x5*x5 - x6*x6 - x11*x11 + 2*x11*x12 - x12*x12 + objvar =L= 0; e16.. - x7 + x8 =L= 0; e17.. - x1 + x2 =L= 0; e18.. - x2 + x3 =L= 0; e19.. - x3 + x4 =L= 0; e20.. - x4 + x5 =L= 0; e21.. - x5 + x6 =L= 0; * set non-default bounds x1.lo = 0.5; x1.up = 1; x2.lo = 0.5; x2.up = 1; x3.lo = 0.5; x3.up = 1; x4.up = 1; x5.up = 1; x6.up = 1; x7.up = 1; x8.up = 1; x9.up = 1; x10.up = 1; x11.up = 1; x12.up = 1; Model m / all /; m.limrow=0; m.limcol=0; m.tolproj=0.0; $if NOT '%gams.u1%' == '' $include '%gams.u1%' $if not set NLP $set NLP NLP Solve m using %NLP% maximizing objvar;