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Instance: ex9_2_7

Formats ams gms lp mod nl osil pip
Primal Bounds
17.00000000 p1 ( gdx sol )
(infeas: 4e-16)
Dual Bounds
16.99999998 (ANTIGONE)
16.99999998 (BARON)
17.00000000 (COUENNE)
17.00000000 (LINDO)
17.00000000 (SCIP)
References Floudas, C A, Pardalos, Panos M, Adjiman, C S, Esposito, W R, Gumus, Zeynep H, Harding, S T, Klepeis, John L, Meyer, Clifford A, and Schweiger, C A, Handbook of Test Problems in Local and Global Optimization, Kluwer Academic Publishers, 1999.
Visweswaran, V, Floudas, C A, Ierapetritou, M G, and Pistikopoulos, E N, A Decomposition-Based Global Optimization Approach for Solving Bilevel Linear and Quadratic Programs. Chapter 10 in Floudas, C A and Pardalos, P M, Eds, State of the Art in Global Optimization, Kluwer Academic Publishers, 1996, 139-162.
Source Test Problem ex9.2.7 of Chapter 9 of Floudas e.a. handbook
Added to library 31 Jul 2001
Problem type QCQP
#Variables 10
#Binary Variables 0
#Integer Variables 0
#Nonlinear Variables 10
#Nonlinear Binary Variables 0
#Nonlinear Integer Variables 0
Objective Sense min
Objective type quadratic
Objective curvature convex
#Nonzeros in Objective 2
#Nonlinear Nonzeros in Objective 2
#Constraints 9
#Linear Constraints 5
#Quadratic Constraints 4
#Polynomial Constraints 0
#Signomial Constraints 0
#General Nonlinear Constraints 0
Operands in Gen. Nonlin. Functions  
Constraints curvature indefinite
#Nonzeros in Jacobian 25
#Nonlinear Nonzeros in Jacobian 8
#Nonzeros in (Upper-Left) Hessian of Lagrangian 10
#Nonzeros in Diagonal of Hessian of Lagrangian 2
#Blocks in Hessian of Lagrangian 6
Minimal blocksize in Hessian of Lagrangian 1
Maximal blocksize in Hessian of Lagrangian 2
Average blocksize in Hessian of Lagrangian 1.666667
#Semicontinuities 0
#Nonlinear Semicontinuities 0
#SOS type 1 0
#SOS type 2 0
Infeasibility of initial point 7
Sparsity Jacobian Sparsity of Objective Gradient and Jacobian
Sparsity Hessian of Lagrangian Sparsity of Hessian of Lagrangian

$offlisting
*  
*  Equation counts
*      Total        E        G        L        N        X        C        B
*         10       10        0        0        0        0        0        0
*  
*  Variable counts
*                   x        b        i      s1s      s2s       sc       si
*      Total     cont   binary  integer     sos1     sos2    scont     sint
*         11       11        0        0        0        0        0        0
*  FX      0
*  
*  Nonzero counts
*      Total    const       NL      DLL
*         28       18       10        0
*
*  Solve m using NLP minimizing objvar;


Variables  objvar,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11;

Positive Variables  x2,x3,x4,x5,x6,x7,x8,x9,x10,x11;

Equations  e1,e2,e3,e4,e5,e6,e7,e8,e9,e10;


e1.. (-5 + x2)*(-5 + x2) + (1 + 2*x3)*(1 + 2*x3) - objvar =E= 0;

e2..  - 3*x2 + x3 + x4 =E= -3;

e3..    x2 - 0.5*x3 + x5 =E= 4;

e4..    x2 + x3 + x6 =E= 7;

e5..  - x3 + x7 =E= 0;

e6.. x4*x8 =E= 0;

e7.. x5*x9 =E= 0;

e8.. x6*x10 =E= 0;

e9.. x7*x11 =E= 0;

e10..  - 1.5*x2 + 2*x3 + x8 - 0.5*x9 + x10 - x11 =E= 2;

* set non-default bounds
x4.up = 20;
x5.up = 20;
x6.up = 20;
x7.up = 20;
x8.up = 20;
x9.up = 20;
x10.up = 20;
x11.up = 20;

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% minimizing objvar;


Last updated: 2018-09-14 Git hash: ac5a5314
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