/// <summary>
/// Refines the given state according to the knowledge stored in the egraph about sv
///
/// In addition, the state can be null when the knowledge is inconsistent.
/// </summary>
/// <param name="cv">symbolic value we assume to be non-null (true)</param>
/// <param name="state">state if sv is non-null (true)</param>
private static void AssumeTrue(ISymValue cv, ref ExposureState state) {
if (state == null) return;
foreach(EGraphTerm t in state.egraph.EqTerms(cv)){
ISymValue op = t.Args[0];
if (t.Function == ExposureState.EqIsExposedId){
// EqIsExposed(op) == true, therefore op *is* exposed
state.AssignFrameForExposed(op);
}else if (t.Function == ExposureState.EqIsExposableId){
state.AssignFrameForExposable(op);
}
}
}
