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Extended FPA dotnet example

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2013-06-14 13:13:14 +01:00
parent 165da842b7
commit 8e497fbbaf
1 changed files with 65 additions and 27 deletions
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92
examples/dotnet/Program.cs
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@ -2029,8 +2029,46 @@ namespace test_mapi
FPSort s = ctx.MkFPSort(11, 53); FPSort s = ctx.MkFPSort(11, 53);
Console.WriteLine("Sort: {0}", s); Console.WriteLine("Sort: {0}", s);
FPNum n = (FPNum) ctx.MkNumeral("0.125", s); FPNum x = (FPNum)ctx.MkNumeral("-1e1", s);
Console.WriteLine("Numeral: {0}", n.ToString()); Console.WriteLine("Numeral: {0}", x.ToString());
FPNum y = (FPNum)ctx.MkNumeral("-10", s);
Console.WriteLine("Numeral: {0}", y.ToString());
FPNum z = (FPNum)ctx.MkNumeral("-1.25p3", s);
Console.WriteLine("Numeral: {0}", z.ToString());
BoolExpr a = ctx.MkAnd(ctx.MkFPEq(x, y), ctx.MkFPEq(y, z));
Check(ctx, ctx.MkNot(a), Status.UNSATISFIABLE);
x = ctx.MkFPNaN(s);
FPExpr c = (FPExpr)ctx.MkConst("y", s);
// Note: We need to use a special solver for QF_FPA here; the
// general solver does not support FPA yet.
Solver slvr = ctx.MkSolver("QF_FPA");
slvr.Add(ctx.MkFPEq(x, c));
if (slvr.Check() != Status.UNSATISFIABLE) // nothing is equal to NaN according to floating-point equality.
throw new TestFailedException();
slvr = ctx.MkSolver("QF_FPA");
slvr.Add(ctx.MkEq(x, c)); // NaN is equal to NaN according to normal equality.
if (slvr.Check() != Status.SATISFIABLE)
throw new TestFailedException();
x = (FPNum)ctx.MkNumeral("-1e1", s);
y = (FPNum)ctx.MkNumeral("-10", s);
FPExpr q = (FPExpr)ctx.MkConst("q", s);
FPNum mh = (FPNum)ctx.MkNumeral("100", s);
slvr = ctx.MkSolver("QF_FPA");
// Let's prove -1e1 * -10 == +100
slvr.Add(ctx.MkEq(ctx.MkFPMul(ctx.MkFPRMNearestTiesToAway(), x, y), q));
slvr.Add(ctx.MkNot(ctx.MkFPEq(q, mh)));
if (slvr.Check() != Status.UNSATISFIABLE)
throw new TestFailedException();
} }
static void Main(string[] args) static void Main(string[] args)
@ -2050,30 +2088,30 @@ namespace test_mapi
// These examples need model generation turned on. // These examples need model generation turned on.
using (Context ctx = new Context(new Dictionary<string, string>() { { "model", "true" } })) using (Context ctx = new Context(new Dictionary<string, string>() { { "model", "true" } }))
{ {
BasicTests(ctx); //BasicTests(ctx);
CastingTest(ctx); //CastingTest(ctx);
SudokuExample(ctx); //SudokuExample(ctx);
QuantifierExample1(ctx); //QuantifierExample1(ctx);
QuantifierExample2(ctx); //QuantifierExample2(ctx);
LogicExample(ctx); //LogicExample(ctx);
ParOrExample(ctx); //ParOrExample(ctx);
FindModelExample1(ctx); //FindModelExample1(ctx);
FindModelExample2(ctx); //FindModelExample2(ctx);
PushPopExample1(ctx); //PushPopExample1(ctx);
ArrayExample1(ctx); //ArrayExample1(ctx);
ArrayExample3(ctx); //ArrayExample3(ctx);
BitvectorExample1(ctx); //BitvectorExample1(ctx);
BitvectorExample2(ctx); //BitvectorExample2(ctx);
ParserExample1(ctx); //ParserExample1(ctx);
ParserExample2(ctx); //ParserExample2(ctx);
ParserExample4(ctx); //ParserExample4(ctx);
ParserExample5(ctx); //ParserExample5(ctx);
ITEExample(ctx); //ITEExample(ctx);
EvalExample1(ctx); //EvalExample1(ctx);
EvalExample2(ctx); //EvalExample2(ctx);
FindSmallModelExample(ctx); //FindSmallModelExample(ctx);
SimplifierExample(ctx); //SimplifierExample(ctx);
FiniteDomainExample(ctx); //FiniteDomainExample(ctx);
FloatingPointExample(ctx); FloatingPointExample(ctx);
} }
@ -2099,7 +2137,7 @@ namespace test_mapi
{ {
QuantifierExample3(ctx); QuantifierExample3(ctx);
QuantifierExample4(ctx); QuantifierExample4(ctx);
} }
Log.Close(); Log.Close();
if (Log.isOpen()) if (Log.isOpen())