Benchmark

non-incremental/QF_NRA/20200911-Pine/1599121980156583000.smt2

These benchmarks were generated while developing the tool Pine [1], which uses
CVC4/Z3 to check inductiveness of invariants. The work is described in [2].

[1] https://github.com/izycheva/pine
[2] A.Izycheva, E.Darulova, H.Seidl, SAS'20, "Counterexample- and Simulation-Guided Floating-Point Loop Invariant Synthesis"

 Loop:
   u' := u + 0.01 * v
   v' := v + 0.01 * (-0.5 * v - 9.81 * u)

 Input ranges:
   u in [0.0,0.0]
   v in [2.0,3.0]

 Invariant:
   -0.11*u + 1.0*u^2 + 0.04*u*v + 0.1*v^2 <= 1.64
 and
   u in [-1.3,1.4]
   v in [-4.1,4.1]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size1853
Compressed Size900
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categoryindustrial
First Occurrence2021-07-18
Generated ByAnastasiia Izycheva, Eva Darulova
Generated On2020-09-11 00:00:00
GeneratorPine (using Z3 Python API)
Dolmen OK1
strict Dolmen OK1
check-sat calls1
Query 1
Status unknown
Inferred Status unsat
Size 1845
Compressed Size909
Max. Term Depth14
Asserts 1
Declared Functions0
Declared Constants4
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

not1 and6 =2 let7
/20 +8 -8 *18
<=4 >=6

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2021 0.40 (6/10) CVC4 CVC4-sq-final_default unsat ✅ 0.65616 0.65645
cvc5 cvc5-fixed_default unsat ✅ 0.80096 0.80152
Par4 Par4-wrapped-sq_default unsat ✅ 0.05567 0.00610
UltimateEliminator UltimateEliminator+MathSAT-5.6.6_default unknown ❌ 1200.05000 1203.77000
Vampire vampire_smt_4.6-fixed_vampire_smtcomp unsat ✅ 0.16130 0.10748
YicesQS yices-QS-2021-06-13under10_default unsat ✅ 0.99262 0.99247
Z3 z3-4.8.11_default unsat ✅ 0.02729 0.02739
z3-4.8.8_default unsat ✅ 0.04337 0.04340
SMT-COMP 2022 0.11 (8/9) cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq unsat ✅ 0.17284 0.17332
MathSAT MathSAT-5.6.8_default unknown ❌ 1200.02000 1199.99000
NRA-LS NRA-LS-FINAL_default unsat ✅ 0.25425 0.25421
Par4 Par4-wrapped-sq_default unsat ✅ 0.06243 0.00636
SMT-RAT SMT-RAT-MCSAT_default unsat ✅ 0.10689 0.10683
veriT veriT+raSAT+Redlog_default unsat ✅ 0.32594 0.32174
Yices2 Yices 2.6.2 for SMTCOMP 2021_default unsat ✅ 0.59894 0.59807
Z3 z3-4.8.17_default unsat ✅ 0.03090 0.03282
Z3++ z3++0715_default unsat ✅ 0.29331 0.29339
SMT-COMP 2024 0.20 (4/5) cvc5 cvc5 unsat ✅ 0.29617 0.19639
SMTInterpol SMTInterpol unknown ❌ 0.41639 0.43190
SMT-RAT SMT-RAT unsat ✅ 0.28478 0.18484
Yices2 Yices2 unsat ✅ 0.52916 0.42939
Z3alpha Z3-alpha unsat ✅ 0.30750 0.20799
SMT-COMP 2025 0.17 (5/6) cvc5 cvc5 unsat ✅ 0.33694 0.21709
SMTInterpol SMTInterpol unknown ❌ 0.43064 0.41740
SMT-RAT SMT-RAT unsat ✅ 0.30720 0.18154
Yices2 Yices2 unsat ✅ 0.31677 0.19373
Z3alpha Z3-alpha unsat ✅ 0.62695 0.58243
Z3 Z3-alpha-base unsat ✅ 0.31316 0.19317
z3siri-base unsat ✅ 0.31613 0.19170