Benchmark

non-incremental/QF_ABV/brummayerbiere2/countbitstableuninit0032.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	14280
Compressed Size	1647
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	14272
Compressed Size	1628
Max. Term Depth	259
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	65	not	1	=	66	let	33
concat	4	extract	4	bvnot	33	bvand	32
bvadd	35	bvshl	32	bvlshr	3	zero_extend	32
select	4	store	255

Evaluations

Evaluation	Rating	Solver	Variant	Result	Wallclock	CPU Time
SMT-COMP 2012		Boolector	Boolector	sat ✅	0.20000	—
			Boolector 1.5.23-833	sat ✅	1.90000	—
		CVC3	CVC3 v2.4.2	sat ✅	11.20000	—
			CVC4 1.0rc.3931	sat ✅	56.20000	—
			CVC4 1.0rc.3970	sat ✅	55.90000	—
		SONOLAR	SONOLAR	sat ✅	1.90000	—
		Tiffany de Wintermonte	Tiffany de Wintermonte & Sonolar	sat ✅	0.40000	—
SMT Evaluation 2013		Boolector	Boolector-1.5.118-SMT-EVAL-2013 default	sat ✅	0.09998	—
			Boolector-SMT-COMP-2011 default	sat ✅	3.29993	—
			Boolector-SMT-COMP-2012 default	sat ✅	0.09803	—
		CVC3	CVC3-SMT-COMP-2010 default	sat ✅	3.79886	—
			CVC3-SMT-COMP-2011 default	sat ✅	3.45599	—
			CVC3-SMT-COMP-2012 default	sat ✅	3.46075	—
		CVC4	CVC4-SMT-COMP-2012-Resubmission default	sat ✅	215.96700	—
			CVC4-SMT-EVAL-2013 default	sat ✅	193.32900	—
		MathSAT	MathSAT5-5.2.6-SMT-EVAL-2013 default	sat ✅	1.53840	—
			MathSAT5-SMT-COMP-2011 default	sat ✅	24.71770	—
			MathSAT5-SMT-COMP-2012 default	sat ✅	15.04970	—
		SONOLAR	SONOLAR-2013-05-15-SMT-EVAL-2013 default	sat ✅	0.27232	—
			SONOLAR-SMT-COMP-2011 default	sat ✅	0.04007	—
			SONOLAR-SMT-COMP-2012 default	sat ✅	0.96403	—
		Tiffany de Wintermonte	TdW-SMT-COMP-2012 default	sat ✅	0.24891	—
		Z3	Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-EVAL-2013 default	sat ✅	2.88281	—
			Z3-SMT-COMP-2011 default	sat ✅	232.73900	—
SMT-COMP 2014		Boolector	Boolector boolectord	sat ✅	0.12708	0.10198
			Boolector boolectorj	sat ✅	0.10375	0.08999
		CVC4	CVC4 f7118b2 default	sat ✅	15.10910	15.09070
		Kleaver	Kleaver-indie-more-typed kleaver_indie_1	sat ✅	0.15140	0.14998
			Kleaver-indie-more-typed kleaver_portfolio	sat ✅	0.18235	0.47593
		MathSAT	MathSAT-5.2.12-Main default	sat ✅	1.63207	1.61975
		SONOLAR	sonolar_smtcomp-2014 default	sat ✅	0.40425	0.38994
		Yices2	Yices-2.2.1-smtcomp2014 default	sat ✅	0.32952	0.31695
		Z3	Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-COMP-2014 default	sat ✅	0.06991	0.04799
SMT-COMP 2015		Boolector	Boolector SMT15 QF_AUFBV final boolector_qf_aufbv	sat ✅	0.24063	0.23996
		CVC4	CVC4-master-2015-06-15-9b32405-main default	sat ✅	77.87000	77.90020
			CVC4-experimental-2015-06-15-ff5745a-main default	sat ✅	1.49992	1.49777
		MathSAT	MathSat 5.3.6 main smtcomp2015_main	sat ✅	1.12167	1.12083
		Yices2	Yices default	sat ✅	0.28741	0.28596
		Z3	z3 4.4.0 default	sat ✅	0.07382	0.07399
SMT-COMP 2016		Boolector	Boolector boolector	sat ✅	0.65387	0.65412
		CVC4	CVC4-master-2016-05-27-cfef263-main default	sat ✅	1.12774	1.12853
		MathSAT	mathsat-5.3.11-linux-x86_64-Main default	sat ✅	1.40986	1.41156
		Yices2	Yices-2.4.2 default	sat ✅	0.28701	0.28711
		Z3	z3-4.4.1 default	sat ✅	1.47235	1.47422
SMT-COMP 2017		Boolector	Boolector SMT17 final boolector	sat ✅	0.99985	0.99919
		CVC4	CVC4-smtcomp2017-main default	sat ✅	0.27804	0.27793
		MathSAT	mathsat-5.4.1-linux-x86_64-Main default	sat ✅	0.96947	0.96867
		Yices2	Yices2-Main default	sat ✅	0.31709	0.31664
		Z3	z3-4.5.0 default	sat ✅	14.91760	14.91480
SMT-COMP 2018	0.20 (4/5)	Boolector	Boolector_default	sat ✅	1.17917	1.17906
		CVC4	master-2018-06-10-b19c840-competition-default_default	sat ✅	7.21775	7.21739
		MathSAT	mathsat-5.5.2-linux-x86_64-Main_default	unknown ❌	0.98170	0.98273
		Yices2	Yices 2.6.0_default	sat ✅	0.30940	0.30930
		Z3	z3-4.7.1_default	sat ✅	0.10158	0.10150
SMT-COMP 2020		Bitwuzla	Bitwuzla-fixed_default	sat ✅	0.22981	0.22978
		Boolector	Boolector-wrapped-sq_default	sat ✅	0.11736	0.11735
		CVC4	CVC4-sq-final_default	sat ✅	61.96980	61.95600
		MathSAT	MathSAT5_default.sh	sat ✅	4.78614	4.78431
		Par4	Par4-wrapped-sq_default	sat ✅	0.28424	0.00682
		Yices2	Yices 2.6.2 bug fix_default	sat ✅	0.27340	0.27324
		Z3	z3-4.8.8_default	sat ✅	278.06900	278.07900
SMT-COMP 2022		Bitwuzla	Bitwuzla-wrapped_default	sat ✅	0.75118	0.75117
		cvc5	cvc5-default-2022-07-02-b15e116-wrapped_sq	sat ✅	35.28720	35.28560
		MathSAT	MathSAT-5.6.8_default	sat ✅	3.17121	3.17134
		Yices2	Yices 2.6.2 for SMTCOMP 2021_default	sat ✅	0.24489	0.24485
		Z3	z3-4.8.17_default	sat ✅	210.07000	210.02700
SMT-COMP 2023	0.20 (4/5)	Bitwuzla	Bitwuzla-fixed_default	sat ✅	1.48539	1.48109
		cvc5	cvc5-default-2023-05-16-ea045f305_sq	sat ✅	45.17770	45.17150
		UltimateEliminator	UltimateIntBlastingWrapper+SMTInterpol_default	unknown ❌	1200.02000	1251.10000
		Yices2	Yices 2 for SMTCOMP 2023_default	sat ✅	0.30828	0.30823
		Z3-Owl	z3-Owl-Final_default	sat ✅	1.74245	0.99743
			z3-Owl-Final_default	sat ✅	319.90000	319.89300