Benchmark

non-incremental/QF_ABV/brummayerbiere2/countbitstableuninit0256.smt2

Count bits pop(x) algorithm, table lookup method, buggy version
From the book "Hacker's delight" by Henry S. Warren, Jr., page 71
The algorithm precomputes pop(x) for x in range 0 to 255 and stores it
into a lookup table. However, one precomputed value is uninitialized.

We try to cross-check it with the obvious method of counting bits:
for (s = i = 0; i < BW; i++)
  if (x & (1 << i))
    s++;

Contributed by Robert Brummayer (robert.brummayer@gmail.com)

Benchmark
Size	58560
Compressed Size	3105
License	Creative Commons Attribution 4.0 International (CC-BY-4.0)
Category	crafted
First Occurrence	2008-07-07
Generated By	—
Generated On	—
Generator	—
Dolmen OK	1
strict Dolmen OK	1
check-sat calls	1

Query 1

Status	sat
Inferred Status	sat
Size	58552
Compressed Size	3125
Max. Term Depth	325
Asserts	1
Declared Functions	0
Declared Constants	2
Declared Sorts	0
Defined Functions	0
Defined Recursive Functions	0
Defined Sorts	0
Constants	0
Declared Datatypes	0

Symbols

ite	513	not	1	=	514	let	285
concat	32	extract	32	bvnot	257	bvand	256
bvadd	287	bvshl	256	bvlshr	31	zero_extend	256
select	32	store	255

Evaluations

Evaluation	Rating	Solver	Variant	Result	Wallclock	CPU Time
SMT-COMP 2010		Boolector	Boolector 1.2	sat ✅	47.20000	—
		CVC3	CVC3 2.3	sat ✅	29.40000	—
SMT-COMP 2011	0.60 (2/5)	Boolector	Boolector 1.5.23-833	sat ✅	163.10000	—
		CVC3	CVC3 v2.4	unknown ❌	388.10000	—
		MathSAT	MathSAT5	unknown ❌	1200.00000	—
		SONOLAR	SONOLAR	sat ✅	153.90000	—
		Z3	Z3	unknown ❌	1200.00000	—
SMT Evaluation 2013	1.00 (0/7)	Boolector	Boolector-1.5.118-SMT-EVAL-2013 default	unknown ❌	—	—
			Boolector-SMT-COMP-2011 default	unknown ❌	—	—
			Boolector-SMT-COMP-2012 default	unknown ❌	—	—
		CVC3	CVC3-SMT-COMP-2010 default	unknown ❌	—	—
			CVC3-SMT-COMP-2011 default	unknown ❌	—	—
			CVC3-SMT-COMP-2012 default	unknown ❌	—	—
		CVC4	CVC4-SMT-COMP-2012-Resubmission default	unknown ❌	—	—
			CVC4-SMT-EVAL-2013 default	unknown ❌	—	—
		MathSAT	MathSAT5-5.2.6-SMT-EVAL-2013 default	unknown ❌	—	—
			MathSAT5-SMT-COMP-2011 default	unknown ❌	—	—
			MathSAT5-SMT-COMP-2012 default	unknown ❌	—	—
		SONOLAR	SONOLAR-2013-05-15-SMT-EVAL-2013 default	unknown ❌	—	—
			SONOLAR-SMT-COMP-2011 default	unknown ❌	—	—
			SONOLAR-SMT-COMP-2012 default	unknown ❌	—	—
		Tiffany de Wintermonte	TdW-SMT-COMP-2012 default	unknown ❌	—	—
		Z3	Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-EVAL-2013 default	unknown ❌	—	—
			Z3-SMT-COMP-2011 default	unknown ❌	—	—
SMT-COMP 2014	0.29 (5/7)	Boolector	Boolector boolectord	sat ✅	1.67475	1.66575
			Boolector boolectorj	sat ✅	3.39817	3.39048
		CVC4	CVC4 f7118b2 default	sat ✅	473.38100	473.53200
		Kleaver	Kleaver-indie-more-typed kleaver_indie_1	unknown ❌	0.03229	0.02300
			Kleaver-indie-more-typed kleaver_portfolio	unknown ❌	0.04887	0.03899
		MathSAT	MathSAT-5.2.12-Main default	sat ✅	85.69790	85.72200
		SONOLAR	sonolar_smtcomp-2014 default	sat ✅	265.99800	266.08900
		Yices2	Yices-2.2.1-smtcomp2014 default	sat ✅	15.08280	15.07970
		Z3	Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-COMP-2014 default	unknown ❌	2399.12000	2400.01000
SMT-COMP 2015		Boolector	Boolector SMT15 QF_AUFBV final boolector_qf_aufbv	sat ✅	3.12576	3.12552
		CVC4	CVC4-master-2015-06-15-9b32405-main default	sat ✅	713.29300	713.47300
			CVC4-experimental-2015-06-15-ff5745a-main default	sat ✅	154.38000	154.40600
		MathSAT	MathSat 5.3.6 main smtcomp2015_main	sat ✅	303.05600	303.12200
		Yices2	Yices default	sat ✅	28.40970	28.39970
		Z3	z3 4.4.0 default	sat ✅	2297.32000	2298.16000
SMT-COMP 2016		Boolector	Boolector boolector	sat ✅	2.86023	2.86201
		CVC4	CVC4-master-2016-05-27-cfef263-main default	sat ✅	197.36400	185.37700
		MathSAT	mathsat-5.3.11-linux-x86_64-Main default	sat ✅	502.90500	503.15400
		Yices2	Yices-2.4.2 default	sat ✅	21.86000	21.87260
		Z3	z3-4.4.1 default	sat ✅	2.63343	2.63635
SMT-COMP 2017	0.20 (4/5)	Boolector	Boolector SMT17 final boolector	sat ✅	22.41970	22.41810
		CVC4	CVC4-smtcomp2017-main default	sat ✅	138.82400	129.17300
		MathSAT	mathsat-5.4.1-linux-x86_64-Main default	sat ✅	287.87500	287.89000
		Yices2	Yices2-Main default	sat ✅	5.38615	5.38619
		Z3	z3-4.5.0 default	unknown ❌	600.10500	599.93300
SMT-COMP 2018	0.40 (3/5)	Boolector	Boolector_default	sat ✅	12.82940	12.82810
		CVC4	master-2018-06-10-b19c840-competition-default_default	sat ✅	146.84900	136.38000
		MathSAT	mathsat-5.5.2-linux-x86_64-Main_default	unknown ❌	90.40620	90.40550
		Yices2	Yices 2.6.0_default	sat ✅	5.13329	5.13319
		Z3	z3-4.7.1_default	unknown ❌	1200.02000	1200.01000
SMT-COMP 2020	0.14 (6/7)	Bitwuzla	Bitwuzla-fixed_default	sat ✅	10.65160	10.65070
		Boolector	Boolector-wrapped-sq_default	sat ✅	17.00190	17.00140
		CVC4	CVC4-sq-final_default	sat ✅	200.33700	186.09900
		MathSAT	MathSAT5_default.sh	sat ✅	238.76400	238.69400
		Par4	Par4-wrapped-sq_default	sat ✅	13.98930	41.89000
		Yices2	Yices 2.6.2 bug fix_default	sat ✅	25.15800	25.15590
		Z3	z3-4.8.8_default	unknown ❌	1200.12000	1199.91000
SMT-COMP 2022	0.40 (3/5)	Bitwuzla	Bitwuzla-wrapped_default	sat ✅	13.61770	13.61660
		cvc5	cvc5-default-2022-07-02-b15e116-wrapped_sq	sat ✅	172.66400	159.70700
		MathSAT	MathSAT-5.6.8_default	unknown ❌	1200.07000	1199.69000
		Yices2	Yices 2.6.2 for SMTCOMP 2021_default	sat ✅	9.31760	9.31641
		Z3	z3-4.8.17_default	unknown ❌	1200.03000	1199.94000
SMT-COMP 2024	0.25 (3/4)	Bitwuzla	Bitwuzla	sat ✅	21.44533	21.34435
		cvc5	cvc5	sat ✅	30.45954	30.34530
		SMTInterpol	SMTInterpol	unknown ❌	1201.74134	1382.13178
		Yices2	Yices2	sat ✅	5.39343	5.29298
SMT-COMP 2025	0.67 (2/6)	Bitwuzla	Bitwuzla	sat ✅	23.98600	23.84209
		cvc5	cvc5	unknown ❌	1201.78433	1201.07932
		SMTInterpol	SMTInterpol	unknown ❌	1201.52791	1383.87883
		Yices2	Yices2	sat ✅	19.30155	19.18195
		Z3	Z3-Owl-base	unknown ❌	1201.26528	1200.93803
		Z3-Owl	Z3-Owl	unknown ❌	1201.75569	1201.03513