Benchmark

non-incremental/QF_NRA/20200911-Pine/1599121982750472000.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 + rndu0
   v' := v + 0.01 * (-0.5 * v - 9.81 * u) + rndv0

 Input ranges:
   u in [0.0,0.0]
   v in [2.0,3.0]
   rndu0 in [-6.4e-08,6.4e-08]
   rndv0 in [-2.8e-07,2.8e-07]

 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
Size2203
Compressed Size985
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 2195
Compressed Size988
Max. Term Depth12
Asserts 12
Declared Functions0
Declared Constants6
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

not1 and1 =2 let9
/23 +4 -9 *15
<=6 >=8

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2021 0.40 (6/10) CVC4 CVC4-sq-final_default unsat ✅ 827.93500 827.14400
cvc5 cvc5-fixed_default unsat ✅ 339.43600 339.43600
Par4 Par4-wrapped-sq_default unsat ✅ 107.05200 213.98000
UltimateEliminator UltimateEliminator+MathSAT-5.6.6_default unknown ❌ 1200.08000 1206.51000
Vampire vampire_smt_4.6-fixed_vampire_smtcomp unsat ✅ 126.56300 383.77000
YicesQS yices-QS-2021-06-13under10_default unsat ✅ 0.72527 0.72508
Z3 z3-4.8.11_default unsat ✅ 107.28100 107.28200
z3-4.8.8_default unsat ✅ 105.94900 105.94400
SMT-COMP 2023 0.29 (5/7) cvc5 cvc5-default-2023-05-16-ea045f305_sq unknown ❌ 1200.10000 1196.46000
NRA-LS cvc5-NRA-LS-sq_default unknown ❌ 1171.64000 1170.18000
Par4 Par4-wrapped-sq_default unsat ✅ 0.54543 0.00788
SMT-RAT SMT-RAT-MCSAT_default unsat ✅ 232.09200 232.06300
Yices2 Yices 2 for SMTCOMP 2023_default unsat ✅ 0.45229 0.45226
Z3alpha z3alpha_default unsat ✅ 180.39300 180.39700
Z3++ z3++0715_default unsat ✅ 187.52800 187.50800
Z3++_sq_0526_default unsat ✅ 182.63700 182.58700
SMT-COMP 2025 0.17 (5/6) cvc5 cvc5 unsat ✅ 652.42972 652.20684
SMTInterpol SMTInterpol unknown ❌ 0.40501 0.39498
SMT-RAT SMT-RAT unsat ✅ 5.15572 5.02175
Yices2 Yices2 unsat ✅ 0.46113 0.33370
Z3alpha Z3-alpha unsat ✅ 9.59012 36.46761
Z3 Z3-alpha-base unsat ✅ 16.58293 16.44440
z3siri-base unsat ✅ 16.78964 16.67088