@Override
public IResponse start() {
super.start();
solverProcess.start(true);
try {
if (smtConfig.verbose != 0) smtConfig.log.logDiag("Started simplify");
solverProcess.sendAndListen(
"(BG_PUSH (FORALL (B X Y) (IMPLIES (EQ B |@true|) (EQ (" + ite_term + " B X Y) X))))\n");
solverProcess.sendAndListen(
"(BG_PUSH (FORALL (B X Y) (IMPLIES (NEQ B |@true|) (EQ (" + ite_term + " B X Y) Y))))\n");
} catch (IOException e) {
return smtConfig.responseFactory.error("Failed to assert background formulae at start");
}
return smtConfig.responseFactory.success();
}
@Override
public IResponse define_fun(Idefine_fun cmd) {
IResponse res = super.define_fun(cmd);
if (res.isError()) return res;
try {
if (cmd.resultSort().isBool() && cmd.parameters().size() > 0) {
StringBuilder sb = new StringBuilder();
sb.append("(DEFPRED (");
sb.append(translate(cmd.symbol()));
int n = cmd.parameters().size();
for (int i = 0; i < n; i++) {
sb.append(" X");
sb.append(i);
}
sb.append("))\n");
String s = solverProcess.sendAndListen(sb.toString());
// FIXME - check for error in s -- System.out.println("HEARD " + s);
res = smtConfig.responseFactory.success();
} else {
res = smtConfig.responseFactory.success();
}
IExpr.IFactory f = smtConfig.exprFactory;
assertExpr(f.fcn(f.symbol("="), cmd.symbol(), cmd.expression()));
} catch (IOException e) {
res =
smtConfig.responseFactory.error(
"Failed to declare-fun: " + e.getMessage(), null); // FIXME - position?
} catch (IVisitor.VisitorException e) {
res = smtConfig.responseFactory.error("Failed to declare-fun: " + e.getMessage(), null);
}
return res;
}
@Override
public IResponse check_sat() {
IResponse res = super.check_sat();
if (res.isError()) return res;
try {
// String s = solverProcess.sendAndListen("(BG_PUSH (EQ 0 0))\r\n");
// s = solverProcess.sendAndListen("(EQ 0 1)\r\n");
// if (s.contains("Valid.")) res = smtConfig.responseFactory.unsat();
// else if (s.contains("Invalid.")) res = smtConfig.responseFactory.sat();
// else res = smtConfig.responseFactory.unknown();
String msg = "(NOT (AND TRUE " + conjunction + "\n))\n";
String s = solverProcess.sendAndListen(msg);
// FIXME - what about errors in SImplify
// smtConfig.log.logOut("HEARD: " + s);
if (s.contains("Valid.")) res = smtConfig.responseFactory.unsat();
else if (s.contains("Invalid.")) res = smtConfig.responseFactory.sat();
else res = smtConfig.responseFactory.unknown();
checkSatStatus = res;
// s = solverProcess.sendAndListen("(BG_POP)\r\n");
} catch (IOException e) {
res = smtConfig.responseFactory.error("Failed to check-sat");
}
return res;
}
// @ requires number >= 0;
@Override
public IResponse push(int number) {
IResponse status = super.push(number);
if (!status.isOK()) return status;
try {
while (--number >= 0) {
pushesStack.add(0, conjunction);
String s = solverProcess.sendAndListen("(BG_PUSH (EQ 0 0))");
// FIXME - check for error in s -- System.out.println("HEARD " + s);
}
return smtConfig.responseFactory.success();
} catch (IOException e) {
return smtConfig.responseFactory.error("Failed to push");
}
}