fix group size computation for dejavu

Author: pfetsch

src/symmetry/compute_symmetry_sassy_bliss.cpp

@@ -327,7 +327,8 @@ SCIP_RETCODE computeAutomorphisms(
    }
 
    /* determine log10 of symmetry group size */
-   *log10groupsize = (SCIP_Real) log10l(stats.get_group_size_approx()) + (SCIP_Real) sassy.exp;
+   dejavu::big_number grp_sz = sassy.grp_sz;
+   *log10groupsize = (SCIP_Real) log10l(stats.get_group_size_approx() * grp_sz.mantissa * powl(10.0, (SCIP_Real) grp_sz.exponent));
 
    return SCIP_OKAY;
 }

src/symmetry/compute_symmetry_sassy_nauty.cpp

@@ -378,7 +378,8 @@ SCIP_RETCODE computeAutomorphisms(
    *log10groupsize = 0.0;
    if(sg.nv > 0) {
       sparsenauty(&sg, lab, ptn, orbits, &options, &stats, NULL);
-      *log10groupsize = log10(stats.grpsize1 * pow(10.0, (SCIP_Real) (stats.grpsize2 + sassy.exp)));
+      dejavu::big_number grp_sz = sassy.grp_sz;
+      *log10groupsize = log10(stats.grpsize1 * grp_sz.mantissa * pow(10.0, (SCIP_Real) (stats.grpsize2 + grp_sz.exponent)));
    }
 #else
    convert_dejavu_to_traces(&sassygraph, &sg, &lab, &lab_sz, &ptn, &ptn_sz);
@@ -392,7 +393,8 @@ SCIP_RETCODE computeAutomorphisms(
    options.defaultptn = FALSE; /* use color classes */
    if(sg.nv > 0) {
       Traces(&sg, lab, ptn, orbits, &options, &stats, NULL);
-      *log10groupsize = log10(stats.grpsize1 * pow(10.0, (SCIP_Real) (stats.grpsize2 + sassy.exp)));
+      dejavu::big_number grp_sz = sassy.grp_sz;
+      *log10groupsize = log10(stats.grpsize1 * grp_sz.mantissa * pow(10.0, (SCIP_Real) (stats.grpsize2 + grp_sz.exponent)));
    }
 #endif