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FPA API fixes and examples

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2014-06-11 17:55:31 +01:00
parent ca89b120d3
commit 129e2f5e23
3 changed files with 40 additions and 19 deletions
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55
examples/c/test_capi.c
View file

@ -2604,29 +2604,49 @@ void fpa_example() {
printf("\nFPA-example\n"); printf("\nFPA-example\n");
LOG_MSG("FPA-example"); LOG_MSG("FPA-example");
enable_trace("fpa");
cfg = Z3_mk_config(); cfg = Z3_mk_config();
ctx = Z3_mk_context(cfg); ctx = Z3_mk_context(cfg);
Z3_del_config(cfg); Z3_del_config(cfg);
double_sort = Z3_mk_fpa_sort(ctx, 11, 53); double_sort = Z3_mk_fpa_sort(ctx, 11, 53);
rm_sort = Z3_mk_fpa_rounding_mode_sort(ctx); rm_sort = Z3_mk_fpa_rounding_mode_sort(ctx);
symbol_rm = Z3_mk_string_symbol(ctx, "rm"); symbol_rm = Z3_mk_string_symbol(ctx, "rm");
rm = Z3_mk_const(ctx, symbol_rm, rm_sort); rm = Z3_mk_const(ctx, symbol_rm, rm_sort);
symbol_x = Z3_mk_string_symbol(ctx, "x"); symbol_x = Z3_mk_string_symbol(ctx, "x");
symbol_y = Z3_mk_string_symbol(ctx, "y"); symbol_y = Z3_mk_string_symbol(ctx, "y");
x = Z3_mk_const(ctx, symbol_x, double_sort); x = Z3_mk_const(ctx, symbol_x, double_sort);
y = Z3_mk_const(ctx, symbol_y, double_sort); y = Z3_mk_const(ctx, symbol_y, double_sort);
n = Z3_mk_double(ctx, 42.0, double_sort); n = Z3_mk_fpa_double(ctx, 42.0, double_sort);
Z3_symbol q_s = Z3_mk_string_symbol(ctx, "q");
Z3_ast q = Z3_mk_const(ctx, q_s, double_sort);
c = Z3_mk_eq(ctx, q, Z3_mk_fpa_add(ctx, rm, x, y));
Z3_ast args[2] = { c, Z3_mk_eq(ctx, q, n) };
c = Z3_mk_and(ctx, 2, (Z3_ast*)&args);
printf("c = %s\n", Z3_ast_to_string(ctx, c));
c = Z3_mk_eq(ctx, Z3_mk_fpa_add(ctx, rm, x, y), n);
Z3_assert_cnstr(ctx, c); Z3_assert_cnstr(ctx, c);
if (Z3_check(ctx) != Z3_L_TRUE)
printf("FPA-example not satisfied!\n"); Z3_model m = 0;
Z3_lbool result = Z3_check_and_get_model(ctx, &m);
switch (result) {
case Z3_L_FALSE:
printf("unsat\n");
break;
case Z3_L_UNDEF:
printf("unknown\n");
break;
case Z3_L_TRUE:
printf("sat\n%s\n", Z3_model_to_string(ctx, m));
break;
}
if (m)
Z3_del_model(ctx, m);
Z3_del_context(ctx); Z3_del_context(ctx);
} }
@ -2676,5 +2696,6 @@ int main() {
smt2parser_example(); smt2parser_example();
substitute_example(); substitute_example();
substitute_vars_example(); substitute_vars_example();
fpa_example();
return 0; return 0;
} }

2
src/api/dotnet/Context.cs
View file

@ -3533,7 +3533,7 @@ namespace Microsoft.Z3
public FPNum MkFP(double v, FPSort s) public FPNum MkFP(double v, FPSort s)
{ {
Contract.Ensures(Contract.Result<FPNum>() != null); Contract.Ensures(Contract.Result<FPNum>() != null);
return new FPNum(this, Native.Z3_mk_double(this.nCtx, v, s.NativeObject)); return new FPNum(this, Native.Z3_mk_fpa_double(this.nCtx, v, s.NativeObject));
} }
/// <summary> /// <summary>

2
src/api/z3_fpa.h
View file

@ -129,7 +129,7 @@ extern "C" {
\sa Z3_mk_numeral \sa Z3_mk_numeral
def_API('Z3_mk_double', AST, (_in(CONTEXT), _in(DOUBLE), _in(SORT))) def_API('Z3_mk_fpa_double', AST, (_in(CONTEXT), _in(DOUBLE), _in(SORT)))
*/ */
Z3_ast Z3_API Z3_mk_fpa_double(__in Z3_context c, __in double v, __in Z3_sort ty); Z3_ast Z3_API Z3_mk_fpa_double(__in Z3_context c, __in double v, __in Z3_sort ty);