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/****   , [ stress_test.cpp ], 
Copyright (c) 2007 Universite d'Orleans - Jeremie Vautard 

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*************************************************************************/

#include "qsolver.hh"
#include "implicative.hh"
#include "SDFVariableHeuristic.hh"
#include "NaiveValueHeuristics.hh"


// This is a set of tiny problems which are used to dtect errors in QeCode. 
// This set is likely to progressively enlarge...

int main() {
    unsigned long int nodes;
    unsigned long int steps;
    SmallestDomainFirst heur;
    SmallestValueFirst vHeur;
    
    // Ax in 1..3 []  -> x=1
    int sc1[] = {1};
    Implicative test1(1,QECODE_UNIVERSAL,sc1);
    test1.QIntVar(0,1,3);
    test1.nextScope();
    post(test1.space(),test1.var(0) == 1);
    test1.makeStructure();
    QSolver s1(&test1,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret1=s1.solve(nodes,steps);
    cout<<"Problem 1 : result = "<<(ret1?"TRUE":"FALSE")<<", sould be FALSE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    //Ex in 1..3 [] st x=1
    int sc2[] = {1};
    Implicative test2(1,QECODE_EXISTENTIAL,sc2);
    test2.QIntVar(0,1,3);
    test2.nextScope();
    post(test2.space(),test2.var(0) == 1);
    test2.makeStructure();
    QSolver s2(&test2,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret2=s2.solve(nodes,steps);
    cout<<"Problem 2 : result = "<<(ret2?"TRUE":"FALSE")<<", sould be TRUE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    
    //Ax in 1..3 [x=1] -> x=2
    int sc3[] = {1};
    Implicative test3(1,QECODE_UNIVERSAL,sc3);
    test3.QIntVar(0,1,3);
    post(test3.space(),test3.var(0) == 1);
    test3.nextScope();
    post(test3.space(),test3.var(0) == 2);
    test3.makeStructure();;
    QSolver s3(&test3,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret3=s3.solve(nodes,steps);
    cout<<"Problem 3 : result = "<<(ret3?"TRUE":"FALSE")<<", sould be FALSE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    // Ex in 1..3 [x=1] st x=2
    int sc4[] = {1};
    Implicative test4(1,QECODE_EXISTENTIAL,sc4);
    test4.QIntVar(0,1,3);
    post(test4.space(),test4.var(0) == 1);
    test4.nextScope();
    post(test4.space(),test4.var(0) == 2);
    test4.makeStructure();
    QSolver s4(&test4,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret4=s4.solve(nodes,steps);
    cout<<"Problem 4 : result = "<<(ret4?"TRUE":"FALSE")<<", sould be FALSE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    // Ax in 1..3 [x=1] -> Ey in 1..3 [x=2] -> y=1
    int sc5[] = {1,1};
    Implicative test5(2,QECODE_UNIVERSAL,sc5);
    test5.QIntVar(0,1,3);
    test5.QIntVar(1,1,3);
    post(test5.space(),test5.var(0) == 1);
    test5.nextScope();
    post(test5.space(),test5.var(0) == 2);
    test5.nextScope();
    post(test5.space(),test5.var(1) == 1);
    test5.makeStructure();
    QSolver s5(&test5,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret5=s5.solve(nodes,steps);
    cout<<"Problem 5 : result = "<<(ret5?"TRUE":"FALSE")<<", sould be FALSE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    

    // Ax in 1..3 [x=1] -> Ey in 1..3 [x=1] -> x=2    
    int sc6[] = {1,1};
    Implicative test6(2,QECODE_UNIVERSAL,sc6);
    test6.QIntVar(0,1,3);
    test6.QIntVar(1,1,3);
    post(test6.space(),test6.var(0) == 1);
    test6.nextScope();
    post(test6.space(),test6.var(0) == 1);
    test6.nextScope();
    post(test6.space(),test6.var(0) == 2);
    test6.makeStructure();
    QSolver s6(&test6,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret6=s6.solve(nodes,steps);
    cout<<"Problem 6 : result = "<<(ret6?"TRUE":"FALSE")<<", sould be FALSE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    //Ex in 1..3 [] Ay in 0..3 [y<2] -> y=0
    int sc7[] = {1,1};
    Implicative test7(2,QECODE_EXISTENTIAL,sc7);
    test7.QIntVar(0,1,3);
    test7.QIntVar(1,0,3);
    test7.nextScope();
    post(test7.space(),test7.var(1) <= 2);
    test7.nextScope();
    post(test7.space(),test7.var(1) == 0);
    test7.makeStructure();
    QSolver s7(&test7,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret7=s7.solve(nodes,steps);
    cout<<"Problem 7 : result = "<<(ret7?"TRUE":"FALSE")<<", sould be FALSE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    //Ex in 1..3 [] Ay in 0..3 [y=0] -> y=0    
    int sc8[] = {1,1};
    Implicative test8(2,QECODE_EXISTENTIAL,sc8);
    test8.QIntVar(0,1,3);
    test8.QIntVar(1,0,3);
    test8.nextScope();
    post(test8.space(),test8.var(1) == 0);
    test8.nextScope();
    post(test8.space(),test8.var(1) == 0);
    test8.makeStructure();
    QSolver s8(&test8,&heur,&vHeur);
    nodes=0;
    steps=0;
    bool ret8=s8.solve(nodes,steps);
    cout<<"Problem 8 : result = "<<(ret8?"TRUE":"FALSE")<<", sould be TRUE."<<endl;
    cout<<nodes<<" nodes and "<<steps<<" steps."<<endl;
    
    
    
    
}
    
    

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