SystemVariable* VariableModelManager::requestSystemVariable(QString name, QString filter)
{
// Should I initialize the variable
if (!m_list.contains(name)){
m_list.insert(name, new SystemVariable(name, "", filter,this));
if (m_serverAvailable)
emit requestVariable(name,filter);
}
// Getting current variable registered
SystemVariable* str = m_list.value(name);
// Checking if the filter has changed
if (str->option() != filter){
str->setOption(filter);
str->setVariable("");
if (m_serverAvailable)
emit requestVariable(name,filter);
}
// Returning the variable
return str;
}
void VariableModelManager::updateModel()
{
log("Requesting full update of model");
foreach (SystemVariable *var, m_list) {
emit requestVariable(var->name(),var->option());
}
ArithVar SimplexDecisionProcedure::constructInfeasiblityFunction(TimerStat& timer, const ArithVarVec& set){
Debug("constructInfeasiblityFunction") << "constructInfeasiblityFunction start" << endl;
TimerStat::CodeTimer codeTimer(timer);
Assert(!d_errorSet.focusEmpty());
Assert(debugIsASet(set));
ArithVar inf = requestVariable();
Assert(inf != ARITHVAR_SENTINEL);
std::vector<Rational> coeffs;
std::vector<ArithVar> variables;
for(ArithVarVec::const_iterator iter = set.begin(), iend = set.end(); iter != iend; ++iter){
ArithVar e = *iter;
Assert(d_tableau.isBasic(e));
Assert(!d_variables.assignmentIsConsistent(e));
int sgn = d_errorSet.getSgn(e);
Assert(sgn == -1 || sgn == 1);
const Rational& violatedCoeff = sgn < 0 ? d_negOne : d_posOne;
coeffs.push_back(violatedCoeff);
variables.push_back(e);
Debug("constructInfeasiblityFunction") << violatedCoeff << " " << e << endl;
}
d_tableau.addRow(inf, coeffs, variables);
DeltaRational newAssignment = d_linEq.computeRowValue(inf, false);
d_variables.setAssignment(inf, newAssignment);
//d_linEq.trackVariable(inf);
d_linEq.trackRowIndex(d_tableau.basicToRowIndex(inf));
Debug("constructInfeasiblityFunction") << inf << " " << newAssignment << endl;
Debug("constructInfeasiblityFunction") << "constructInfeasiblityFunction done" << endl;
return inf;
}