Program: 130607
Project: 130607
Buggy source:
@Override public Instance<Ty,En,Sym,Fk,Att,Gen,Null<?>,Gen,Null<?>> eval(AqlEnv env){
  Schema<Ty,En,Sym,Fk,Att> sch=schema.eval(env);
  for (  Ty ty : sch.typeSide.tys) {
    if (!sch.typeSide.js.java_tys.containsKey(ty)) {
      throw new RuntimeException("String_Node_Str");
    }
  }
  op=new AqlOptions(options,null,env.defaults);
  import_as_theory=(boolean)op.getOrDefault(AqlOption.import_as_theory);
  isJoined=(boolean)op.getOrDefault(AqlOption.import_joined);
  idCol=(String)op.getOrDefault(AqlOption.id_column_name);
  nullOnErr=(Boolean)op.getOrDefault(AqlOption.import_null_on_err_unsafe);
  prepend_entity_on_ids=(Boolean)op.getOrDefault(AqlOption.prepend_entity_on_ids);
  import_col_seperator=(String)op.getOrDefault(AqlOption.import_col_seperator);
  prefix=(String)op.getOrDefault(AqlOption.csv_import_prefix);
  ens0=new Ctx<>(Util.newSetsFor0(sch.ens));
  tys0=new Ctx<>(Util.newSetsFor0(sch.typeSide.tys));
  fks0=new Ctx<>();
  atts0=new Ctx<>();
  extraRepr=new Ctx<>();
  try {
    Handle h=start(sch);
    if (!isJoined) {
      throw new RuntimeException("String_Node_Str");
    }
 else {
      for (      En en : sch.ens) {
        Q z=map.get(en.str);
        if (z == null) {
          throw new RuntimeException("String_Node_Str" + en);
        }
        joinedEn(h,en,z,sch);
      }
    }
    end(h);
  }
 catch (  Exception exn) {
    exn.printStackTrace();
    throw new RuntimeException(exn.getMessage() + "String_Node_Str" + getHelpStr());
  }
  if (import_as_theory) {
    return forTheory(sch,ens0,tys0,fks0,atts0,op);
  }
  ImportAlgebra<Ty,En,Sym,Fk,Att,Gen,Null<?>> alg=new ImportAlgebra<>(sch,ens0,tys0,fks0,atts0,Object::toString,Object::toString);
  return new SaturatedInstance<>(alg,alg,(Boolean)op.getOrDefault(AqlOption.require_consistency),(Boolean)op.getOrDefault(AqlOption.allow_java_eqs_unsafe),true,extraRepr);
}

Fixed version (ground truth):
@Override public Instance<Ty,En,Sym,Fk,Att,Gen,Null<?>,Gen,Null<?>> eval(AqlEnv env){
  Schema<Ty,En,Sym,Fk,Att> sch=schema.eval(env);
  for (  Ty ty : sch.typeSide.tys) {
    if (!sch.typeSide.js.java_tys.containsKey(ty)) {
      throw new RuntimeException("String_Node_Str");
    }
  }
  op=new AqlOptions(options,null,env.defaults);
  import_as_theory=(boolean)op.getOrDefault(AqlOption.import_as_theory);
  isJoined=(boolean)op.getOrDefault(AqlOption.import_joined);
  idCol=(String)op.getOrDefault(AqlOption.id_column_name);
  nullOnErr=(Boolean)op.getOrDefault(AqlOption.import_null_on_err_unsafe);
  prepend_entity_on_ids=(Boolean)op.getOrDefault(AqlOption.prepend_entity_on_ids);
  import_col_seperator=(String)op.getOrDefault(AqlOption.import_col_seperator);
  prefix=(String)op.getOrDefault(AqlOption.csv_import_prefix);
  ens0=new Ctx<>(Util.newSetsFor0(sch.ens));
  tys0=new Ctx<>(Util.newSetsFor0(sch.typeSide.tys));
  fks0=new Ctx<>();
  atts0=new Ctx<>();
  extraRepr=new Ctx<>();
  try {
    Handle h=start(sch);
    if (!isJoined) {
      throw new RuntimeException("String_Node_Str");
    }
 else {
      for (      En en : sch.ens) {
        Q z=map.get(en.str);
        joinedEn(h,en,z,sch);
      }
    }
    end(h);
  }
 catch (  Exception exn) {
    exn.printStackTrace();
    throw new RuntimeException(exn.getMessage() + "String_Node_Str" + getHelpStr());
  }
  if (import_as_theory) {
    return forTheory(sch,ens0,tys0,fks0,atts0,op);
  }
  ImportAlgebra<Ty,En,Sym,Fk,Att,Gen,Null<?>> alg=new ImportAlgebra<>(sch,ens0,tys0,fks0,atts0,Object::toString,Object::toString);
  return new SaturatedInstance<>(alg,alg,(Boolean)op.getOrDefault(AqlOption.require_consistency),(Boolean)op.getOrDefault(AqlOption.allow_java_eqs_unsafe),true,extraRepr);
}