Esempio n. 1
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def broad_test(axiom_list, outputfilepath="testresults.txt"):
    """
    Tests every combination of axioms in a cnf-like format (which seemed appropriate). Input format as follows:

    axiom_list is an iterable (generally a list) of lists, in 
    which every element is a function which returns the cnf for 
    an axiom. Every sublist indicates that one of the axioms within it must be a part of every trial. Thus, a singleton is a 
    necessary part (which is for example generally appropriate 
    for atLeastOne).

    Duplicate axioms within a trial as well as duplicate trials are 
    removed efficiently, so the encoding need not prevent duplicates.
    """
    # get every single axiom used (without duplicates)
    all_used_axioms = set()
    for sublist in axiom_list:
        for ax in sublist:
            all_used_axioms.add(ax)

    # map every axiom to an integer
    ax2int = {}
    int2ax = {}
    for i, ax in enumerate(all_used_axioms):
        ax2int[ax] = i
        int2ax[i] = ax
    # map integers to corresponding cnfs
    # allows us to only calculate them once
    print("Gathering all cnf formulas:")
    int2cnf = {}
    for ax, i in ax2int.items():
        print(ax.__name__)
        int2cnf[i] = ax()

    # transform axioms given into ints, for easier duplicate removal
    axiom_list = [[ax2int[ax] for ax in sublist] for sublist in axiom_list]

    # get every trial by taking the cartesian product of input
    trials = product(*axiom_list)
    # remove duplicate axioms per trial
    trials = [tuple(sorted(list(set(x)))) for x in trials]

    # remove duplicate trials
    trials = list(set(trials))
    trials.sort()
    with open(outputfilepath, 'w') as f:
        print("Solving:")
        for trial in tqdm(trials):
            cnf = chain(*[int2cnf[ax] for ax in trial])
            ans = pylgl.solve(cnf)
            if ans == "UNSAT":
                ans = "Unsatisfiable"
            else:
                ans = "Satisfiable  "

            axnames = [int2ax[ax].__name__ for ax in trial]
            f.write(f"{ans}: {', '.join(axnames)}\n")
Esempio n. 2
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 def test_cnf1_vars(self):
     self.assertEqual(solve(clauses1, vars=7), [1, -2, -3, -4, 5, -6, -7])
Esempio n. 3
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 def test_cnf3_3vars(self):
     self.assertEqual(solve(clauses3, vars=3), [-1, -2, -3])
Esempio n. 4
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 def test_cnf3(self):
     self.assertEqual(solve(clauses3), [[-1, -2, -3], [-1, -2, 3]])
Esempio n. 5
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 def test_cnf2(self):
     self.assertEqual(solve(clauses2), "UNSAT")
Esempio n. 6
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 def test_each_clause_gen(self):
     self.assertEqual(solve([(x for x in clause) for clause in clauses1]),
                      [1, -2, -3, -4, 5])
Esempio n. 7
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    def test_gen_clauses(self):
        def gen_clauses():
            for clause in clauses1:
                yield clause

        self.assertEqual(solve(gen_clauses()), [1, -2, -3, -4, 5])
Esempio n. 8
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 def test_each_clause_tuples(self):
     self.assertEqual(solve([tuple(clause) for clause in clauses1]),
                      [1, -2, -3, -4, 5])
Esempio n. 9
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 def test_tuple_caluses(self):
     self.assertEqual(solve(tuple(clauses1)), [1, -2, -3, -4, 5])
Esempio n. 10
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 def test_each_clause_iter(self):
     self.assertEqual(solve([iter(clause) for clause in clauses1]),
                      [1, -2, -3, -4, 5])
Esempio n. 11
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 def test_iter_clauses(self):
     self.assertEqual(solve(iter(clauses1)), [1, -2, -3, -4, 5])
Esempio n. 12
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 def test_cnf1(self):
     self.assertEqual(solve(clauses1), [1, -2, -3, -4, 5])
     if sys.version_info[0] == 2:
         cls = [[long(lit) for lit in clause] for clause in clauses1]
         self.assertEqual(solve(cls), [1, -2, -3, -4, 5])
Esempio n. 13
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 def test_no_clauses(self):
     for n in range(7):
         self.assertEqual(solve([], n), [-i for i in range(1, n + 1)])
Esempio n. 14
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    #cnf4a = cnfAtLeastOne() + cnfKellyCardinalityStrategyproofness() + cnfProportionality() # impossible (3,4,3)
    #cnf4b = cnfAtLeastOne() + cnfKellyCardinalityStrategyproofness() + cnfWeakEfficiency() # possible (3,4,3)
    #cnf4c = cnfAtLeastOne() + cnfKellyCardinalityStrategyproofness() + cnfParetoEfficiency() #possible (3,4,3)
    #cnf6a = cnfAtLeastOne() + cnfKellyWeakSupersetStrategyproofness() + cnfParetoEfficiency() + cnfProportionality() # possible (3,4,3)
    #cnf6b = cnfAtLeastOne() + cnfKellyWeakSupersetStrategyproofness() + cnfParetoEfficiency() + cnfSemiPartylistProportionality()  #impossible (3,4,3)
    #cnf7 = cnfAtLeastOne() + cnfProportionality() + cnfOptimisticCardinalityStrategyproofness() + cnfProportionalityVotingRule() + cnfParetoEfficiency() # possible (3,4,3)
    #cnf8a = cnfAtLeastOne() + cnfProportionality() + cnfPessimisticCardinalityStrategyproofness() + cnfParetoEfficiency() # possible (3,4,3)
    #cnf8b = cnfAtLeastOne() + cnfSemiPartylistProportionality() + cnfPessimisticCardinalityStrategyproofness() + cnfParetoEfficiency() # impossible (3,4,3)

    cnf = cnfAtLeastOne() + cnfOptimisticCardinalityStrategyproofness(
    ) + cnfPessimisticCardinalityStrategyproofness() + cnfProportionality(
    )  #+ cnfParetoEfficiency()

    #dimacs(cnf, sum([len(x) for x in cnfAtLeastOne()]), len(cnf), 'cnf/kellyc+prop+par-343.cnf')
    #t1 = time.time()
    ans = pylgl.solve(cnf)
    #t2 = time.time()
    #print(t2 - t1)
    #embed()
    lits = []
    a = sorted([x for x in ans if x > 0])
    for i in a:
        lit = int2lit[i]
        lits.append(lit)
        print("{} elects: {}".format(lit[1], lit[0]))
    """counter = 0
    for sol in pylgl.itersolve(cnf):
        counter += 1
        if(counter % 100 == 0):
            print(counter)
        a = sorted([int2lit[x] for x in sol if x > 0])
Esempio n. 15
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 def run_SAT(self):
     self.SAT_result = pylgl.solve(self.clauses)