|
public MkGe ( |
||
| t1 | ||
| t2 | ||
| return | ||
public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" } };
using (Context ctx = new Context(cfg))
{
RealExpr x = ctx.MkRealConst("x");
RealExpr y = ctx.MkRealConst("y");
RealExpr z = ctx.MkRealConst("z");
RatNum zero = ctx.MkReal(0);
RatNum two = ctx.MkReal(2);
Goal g = ctx.MkGoal();
g.Assert(ctx.MkGe(ctx.MkSub(ctx.MkPower(x, two), ctx.MkPower(y, two)), zero));
Probe p = ctx.MkProbe("num-consts");
Probe p2 = ctx.Gt(p, ctx.Const(2));
Tactic t = ctx.Cond(p2, ctx.MkTactic("simplify"), ctx.MkTactic("factor"));
Console.WriteLine(t[g]);
g = ctx.MkGoal();
g.Assert(ctx.MkGe(ctx.MkAdd(x, x, y, z), zero));
g.Assert(ctx.MkGe(ctx.MkSub(ctx.MkPower(x, two), ctx.MkPower(y, two)), zero));
Console.WriteLine(t[g]);
}
}
public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" } };
using (Context ctx = new Context(cfg))
{
IntExpr dog = ctx.MkIntConst("dog");
IntExpr cat = ctx.MkIntConst("cat");
IntExpr mouse = ctx.MkIntConst("mouse");
Solver s = ctx.MkSolver();
s.Assert(ctx.MkGe(dog, ctx.MkInt(1)));
s.Assert(ctx.MkGe(cat, ctx.MkInt(1)));
s.Assert(ctx.MkGe(mouse, ctx.MkInt(1)));
s.Assert(ctx.MkEq(ctx.MkAdd(dog, cat, mouse), ctx.MkInt(100)));
s.Assert(ctx.MkEq(ctx.MkAdd(ctx.MkMul(ctx.MkInt(1500), dog),
ctx.MkMul(ctx.MkInt(100), cat),
ctx.MkMul(ctx.MkInt(25), mouse)),
ctx.MkInt(10000)));
Console.WriteLine(s.Check());
Console.WriteLine(s.Model);
}
}
public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" } };
using (Context ctx = new Context(cfg))
{
IntExpr[] x = new IntExpr[20];
IntExpr[] y = new IntExpr[20];
for (uint i = 0; i < 20; i++)
{
x[i] = ctx.MkIntConst(string.Format("x_{0}", i));
y[i] = ctx.MkIntConst(string.Format("y_{0}", i));
}
BoolExpr f = ctx.MkAnd(ctx.MkGe(ctx.MkAdd(x), ctx.MkInt(0)),
ctx.MkGe(ctx.MkAdd(y), ctx.MkInt(0)));
Console.WriteLine("now: " + ctx.GetParamValue("PP_MAX_DEPTH"));
ctx.UpdateParamValue("PP_MAX_DEPTH", "1");
Console.WriteLine(f);
ctx.UpdateParamValue("PP_MAX_DEPTH", "100");
ctx.UpdateParamValue("PP_MAX_NUM_LINES", "10");
Console.WriteLine(f);
ctx.UpdateParamValue("PP_MAX_NUM_LINES", "20");
ctx.UpdateParamValue("PP_MAX_WIDTH", "300");
Console.WriteLine(f);
Console.WriteLine("now: " + ctx.GetParamValue("PP_MAX_WIDTH"));
}
}
public static Expr EeAndGe(String left1, int left2, String right1, int right2)
{
using (Context ctx = new Context())
{
Expr a = ctx.MkConst(left1, ctx.MkIntSort());
Expr b = ctx.MkNumeral(left2, ctx.MkIntSort());
Expr c = ctx.MkConst(right1, ctx.MkIntSort());
Expr d = ctx.MkNumeral(right2, ctx.MkIntSort());
Solver s = ctx.MkSolver();
s.Assert(ctx.MkAnd(ctx.MkEq((ArithExpr)a, (ArithExpr)b), ctx.MkGe((ArithExpr)c, (ArithExpr)d)));
s.Check();
BoolExpr testing = ctx.MkAnd(ctx.MkEq((ArithExpr)a, (ArithExpr)b), ctx.MkGe((ArithExpr)c, (ArithExpr)d));
Model model = Check(ctx, testing, Status.SATISFIABLE);
Expr result2;
Model m2 = s.Model;
foreach (FuncDecl d2 in m2.Decls)
{
result2 = m2.ConstInterp(d2);
return result2;
}
}
return null;
}
public void Run()
{
Dictionary<string, string> settings = new Dictionary<string, string>() { { "AUTO_CONFIG", "true" }, { "MODEL", "true" } };
using (Context ctx = new Context(settings))
{
IntExpr a = ctx.MkIntConst("a");
IntExpr b = ctx.MkIntConst("b");
IntExpr c = ctx.MkIntConst("c");
RealExpr d = ctx.MkRealConst("d");
RealExpr e = ctx.MkRealConst("e");
BoolExpr q = ctx.MkAnd(
ctx.MkGt(a, ctx.MkAdd(b, ctx.MkInt(2))),
ctx.MkEq(a, ctx.MkAdd(ctx.MkMul(ctx.MkInt(2), c), ctx.MkInt(10))),
ctx.MkLe(ctx.MkAdd(c, b), ctx.MkInt(1000)),
ctx.MkGe(d, e));
Solver s = ctx.MkSolver();
s.Assert(q);
Console.WriteLine(s.Check());
Console.WriteLine(s.Model);
}
}
public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" } };
using (Context ctx = new Context(cfg))
{
IntExpr x = ctx.MkIntConst("x");
RealExpr y = ctx.MkRealConst("y");
Console.WriteLine((ctx.MkAdd(x, ctx.MkInt(1))).Sort);
Console.WriteLine((ctx.MkAdd(y, ctx.MkReal(1))).Sort);
Console.WriteLine((ctx.MkGe(x, ctx.MkInt(2))).Sort);
}
}
public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" },
{ "MODEL", "true" } };
using (Context ctx = new Context(cfg))
{
ArrayExpr X = ctx.MkArrayConst("A", ctx.IntSort, ctx.IntSort);
Expr q = ctx.MkGe(
ctx.MkAdd((IntExpr)ctx.MkSelect(X, ctx.MkInt(0)),
(IntExpr)ctx.MkSelect(X, ctx.MkInt(1)),
(IntExpr)ctx.MkSelect(X, ctx.MkInt(2))),
ctx.MkInt(0));
Console.WriteLine(q);
Console.WriteLine(q.Simplify());
}
}
public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" } };
using (Context ctx = new Context(cfg))
{
FuncDecl f = ctx.MkFuncDecl("f", new Sort[] { ctx.IntSort, ctx.IntSort }, ctx.IntSort);
IntExpr x = ctx.MkIntConst("x");
IntExpr y = ctx.MkIntConst("y");
Console.WriteLine(ctx.MkForall(new Expr[] { x, y }, ctx.MkEq(f[x, y], ctx.MkInt(0))));
Console.WriteLine(ctx.MkExists(new Expr[] { x }, ctx.MkGe((ArithExpr)f[x, x], ctx.MkInt(0))));
IntExpr a = ctx.MkIntConst("a");
IntExpr b = ctx.MkIntConst("b");
Solver s = ctx.MkSolver();
s.Assert(ctx.MkForall(new Expr[] { x }, ctx.MkEq(f[x, x], ctx.MkInt(0))));
s.Assert(ctx.MkEq(f[a, b], ctx.MkInt(1)));
Console.WriteLine(s.Check());
Console.WriteLine(s.Model);
}
}
/// <summary>
/// Show how push & pop can be used to create "backtracking" points.
/// </summary>
/// <remarks>This example also demonstrates how big numbers can be
/// created in ctx.</remarks>
public static void PushPopExample1(Context ctx)
{
Console.WriteLine("PushPopExample1");
/* create a big number */
IntSort int_type = ctx.IntSort;
IntExpr big_number = ctx.MkInt("1000000000000000000000000000000000000000000000000000000");
/* create number 3 */
IntExpr three = (IntExpr)ctx.MkNumeral("3", int_type);
/* create x */
IntExpr x = ctx.MkIntConst("x");
Solver solver = ctx.MkSolver();
/* assert x >= "big number" */
BoolExpr c1 = ctx.MkGe(x, big_number);
Console.WriteLine("assert: x >= 'big number'");
solver.Assert(c1);
/* create a backtracking point */
Console.WriteLine("push");
solver.Push();
/* assert x <= 3 */
BoolExpr c2 = ctx.MkLe(x, three);
Console.WriteLine("assert: x <= 3");
solver.Assert(c2);
/* context is inconsistent at this point */
if (solver.Check() != Status.UNSATISFIABLE)
throw new TestFailedException();
/* backtrack: the constraint x <= 3 will be removed, since it was
asserted after the last ctx.Push. */
Console.WriteLine("pop");
solver.Pop(1);
/* the context is consistent again. */
if (solver.Check() != Status.SATISFIABLE)
throw new TestFailedException();
/* new constraints can be asserted... */
/* create y */
IntExpr y = ctx.MkIntConst("y");
/* assert y > x */
BoolExpr c3 = ctx.MkGt(y, x);
Console.WriteLine("assert: y > x");
solver.Assert(c3);
/* the context is still consistent. */
if (solver.Check() != Status.SATISFIABLE)
throw new TestFailedException();
}
protected void Clique(Context ctx, Edge[] edges, uint n)
{
uint num = 0;
foreach (Edge e in edges)
{
if (e.v0 >= num)
num = e.v0 + 1;
if (e.v1 >= num)
num = e.v1 + 1;
}
Solver S = ctx.MkSolver();
IntExpr [] In = new IntExpr[num];
for (uint i = 0; i < num; i++)
{
In[i] = ctx.MkIntConst(String.Format("in_{0}", i));
S.Assert(ctx.MkLe(ctx.MkInt(0), In[i]));
S.Assert(ctx.MkLe(In[i], ctx.MkInt(1)));
}
ArithExpr sum = ctx.MkInt(0);
foreach (IntExpr e in In)
sum = ctx.MkAdd(sum, e);
S.Assert(ctx.MkGe(sum, ctx.MkInt(n)));
IntNum[][] matrix = new IntNum[num][];
for (uint i = 0; i < num; i++)
{
matrix[i] = new IntNum[i];
for (uint j = 0; j < i; j++)
matrix[i][j] = ctx.MkInt(0);
}
foreach (Edge e in edges)
{
uint s = e.v0;
uint t = e.v1;
if (s < t) {
s = e.v1;
t = e.v0;
}
matrix[s][t] = ctx.MkInt(1);
}
for (uint i = 0; i < num; i++)
for (uint j = 0; j < i; j++)
if (i != j)
if (matrix[i][j].Int == 0)
S.Assert(ctx.MkOr(ctx.MkEq(In[i], ctx.MkInt(0)),
ctx.MkEq(In[j], ctx.MkInt(0))));
Status r = S.Check();
if (r == Status.UNSATISFIABLE)
Console.WriteLine("no solution");
else if (r == Status.UNKNOWN)
{
Console.Write("failed");
Console.WriteLine(S.ReasonUnknown);
}
else
{
Console.WriteLine("solution found");
Model m = S.Model;
Console.Write("{ ");
foreach (FuncDecl cfd in m.ConstDecls)
{
IntNum q = (IntNum)m.ConstInterp(cfd);
if (q.Int == 1)
Console.Write(" " + cfd.Name);
}
Console.WriteLine(" }");
Console.Write("{ ");
for (uint i = 0; i < num; i++)
{
IntNum q = (IntNum)m.Evaluate(In[i]);
if (q.Int == 1)
Console.Write(" " + In[i]);
}
Console.WriteLine(" }");
}
}
public override BoolExpr toZ3Bool(Context ctx)
{
switch (this.comparison_operator)
{
case ComparisonOperator.EQ: return ctx.MkEq(this.arithmetic_operand1.toZ3Int(ctx), this.arithmetic_operand2.toZ3Int(ctx));
case ComparisonOperator.NEQ: return ctx.MkNot(ctx.MkEq(this.arithmetic_operand1.toZ3Int(ctx), this.arithmetic_operand2.toZ3Int(ctx)));
case ComparisonOperator.LEQ: return ctx.MkLe(this.arithmetic_operand1.toZ3Int(ctx), this.arithmetic_operand2.toZ3Int(ctx));
case ComparisonOperator.LT: return ctx.MkLt(this.arithmetic_operand1.toZ3Int(ctx), this.arithmetic_operand2.toZ3Int(ctx));
case ComparisonOperator.GEQ: return ctx.MkGe(this.arithmetic_operand1.toZ3Int(ctx), this.arithmetic_operand2.toZ3Int(ctx));
case ComparisonOperator.GT: return ctx.MkGt(this.arithmetic_operand1.toZ3Int(ctx), this.arithmetic_operand2.toZ3Int(ctx));
default: throw new ArgumentOutOfRangeException();
}
}