\ Equation counts \ Total E G L N X C B \ 7 0 0 7 0 0 0 0 \ \ Variable counts \ x b i s1s s2s sc si \ Total cont binary integer sos1 sos2 scont sint \ 4 4 0 0 0 0 0 0 \ \ Nonzero counts \ Total const NL DLL \ 16 13 3 0 \ Minimize obj: 0 x1 + 0 x2 + 0 x3 + x4 Subject To e2: - x1^4 + x1^4 x2^4 - x2^4 x3 <= 0 e3: - x1 - .25 x4 <= -1.4 e4: x1 - .25 x4 <= 1.4 e5: - x2 - .2 x4 <= -1.5 e6: x2 - .2 x4 <= 1.5 e7: - x3 - .2 x4 <= -.8 e8: x3 - .2 x4 <= .8 Bounds x1 Free x2 Free x3 Free x4 Free End