+static PotentialResult ***strat_base;
+
+
+static inline int isle2arch(int isle) {
+ int arch= islandid2arch[isle];
+ assert(arch>=0);
+ return arch;
+}
+
+static double process_route(int nports, int totaldist,
+ double overestimate_excepting_tail) {
+ int i;
+ int leagues_divisor= totaldist + nports;
+
+ ctr_routes_considered++;
+
+ debugf("========== ROUTE");
+ for (i=0; i<nports; i++)
+ debugf(" %d",ports[i]);
+ debugf("\n");
+
+ int finisle= ports[nports-1]; int finarch= isle2arch(finisle);
+ int midisle= ports[nports/2]; int midarch= isle2arch(midisle);
+
+ PotentialResult **strat_fin= ONDEMAND(strat_base[finarch], narches);
+ PotentialResult *strat= ONDEMAND(strat_fin[midarch], 1);
+
+ if (nports>=2) {
+ int pair[2], i;
+ pair[1]= ports[nports-1];
+ double guess_absolute= overestimate_excepting_tail;
+
+ for (i=0; i<nports; i++) {
+ pair[0]= ports[i];
+ IslandPair *ip= ipair_get_maybe(pair[0], pair[1]);
+ if (!ip) continue;
+ if (ip->route_tail_value < 0) {
+ ctr_subroute_tails_valued++;
+ ip->route_tail_value= value_route(2, pair, pair[0]!=pair[1]);
+ }
+ guess_absolute += ip->route_tail_value;
+ }
+ double guess_perleague= guess_absolute / leagues_divisor;
+
+ if (guess_absolute <= strat->absolute &&
+ guess_perleague <= strat->perleague) {
+ ctr_routes_eliminated++;
+ debugf(" ELIM %f %f\n", guess_absolute, guess_perleague);
+ return guess_absolute;
+ }
+ debugf(" COMPUTE %f %f\n", guess_absolute, guess_perleague);
+ }
+
+ ctr_routes_valued++;
+
+ double absolute= value_route(nports, ports, 0);
+ double perleague= absolute / leagues_divisor;
+
+ if (absolute <= strat->absolute &&
+ perleague <= strat->perleague)
+ return absolute;
+
+ debugf(" SOMEHOW BEST\n");