fix #7372

Signed-off-by: Nikolaj Bjorner <[email protected]>

Author: NikolajBjorner

src/sat/sat_config.cpp

@@ -158,6 +158,7 @@ namespace sat {
         m_lookahead_delta_fraction = p.lookahead_delta_fraction();
         m_lookahead_use_learned = p.lookahead_use_learned();
         if (m_lookahead_delta_fraction < 0 || m_lookahead_delta_fraction > 1.0) {
+            verbose_stream() << m_lookahead_delta_fraction << "\n";
             throw sat_param_exception("invalid value for delta fraction. It should be a number in the interval 0 to 1"); 
         }
 

src/util/gparams.cpp

@@ -22,6 +22,7 @@ Module Name:
 #include "util/mutex.h"
 #include "util/region.h"
 #include "util/map.h"
+#include "util/rational.h"
 
 static DECLARE_MUTEX(gparams_mux);
 
@@ -351,8 +352,8 @@ struct gparams::imp {
             ps.set_uint(param_name, static_cast<unsigned>(val));
         }
         else if (k == CPK_DOUBLE) {
-            char * aux;
-            double val = strtod(value, &aux);
+            rational r(value);
+            double val = r.get_double();
             ps.set_double(param_name, val);
         }
         else if (k == CPK_BOOL) {