int WalksatAlgorithm::walk_solve() {
current_solver = this;
signal(SIGINT, handle_interrupt);
abort_flag = FALSE;
(void) elapsed_seconds();
while (! abort_flag &&
numsuccesstry < numsol && numtry < numrun &&
(time_cutoff == 0.0 ||
time_cutoff > expertime)) {
numtry++;
init(initfile, initoptions);
update_statistics_start_try();
numflip = 0;
if (superlinear) cutoff = base_cutoff * super(numtry);
while((numfalse > target) && (numflip < cutoff)) {
if(verbosity) print_statistics_start_flip();
numflip++;
//flipatom((pickcode[heuristic])());
flipatom(pickbest());
update_statistics_end_flip();
}
update_and_print_statistics_end_try();
expertime += elapsed_seconds();
}
//expertime = elapsed_seconds();
if(verbosity) print_statistics_final();
return status_flag;
}
void
fix(int tofix)
{
int numbreak[MAXLENGTH]; /* number of clauses changing */
/* each atoms would make false */
int i; /* loop counter */
int j; /* another loop counter */
int choice;
static int (*pickcode[])(int *numbreak,int clausesize, int tofix) =
{pickrandom,pickproductsum,pickreciprocal,pickadditive,
pickbest,pickexponential,picktabu};
for(i = 0;i < size[tofix];i++)
numbreak[i] = breakcost[abs(clause[tofix][i])];
choice = (pickcode[heuristic])(numbreak,size[tofix],tofix);
if (choice == NOVALUE)
numnullflip++;
else
flipatom(abs(clause[tofix][choice]));
}