Benchmark

non-incremental/FP/20200911-Pine/1599121980073596000.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:
   -0.1*u + 1.0*u^2 + 0.04*u*v + 0.1*v^2 <= 1.64
 and
   u in [-1.3,1.4]
   v in [-4.1,4.0]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size3773
Compressed Size1166
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 None
Size 3765
Compressed Size1182
Max. Term Depth29
Asserts 1
Declared Functions0
Declared Constants4
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

not1 and6 let25 fp22
fp.add8 fp.sub1 fp.mul18 fp.neg1
fp.leq10 fp.eq2 roundNearestTiesToEven27

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2022 0.75 (1/4) Bitwuzla Bitwuzla-wrapped_default sat ✅ 106.87600 106.87800
cvc5 cvc5_default unknown ❌ 1200.09000 1198.78000
cvc5-default-2022-07-02-b15e116-wrapped_sq unknown ❌ 1200.02000 1197.86000
UltimateEliminator UltimateEliminator+MathSAT-5.6.7-wrapped_default unknown ❌ 6.78118 4.27141
Z3 z3-4.8.17_default unknown ❌ 1200.08000 1199.89000
SMT-COMP 2023 0.67 (1/3) Bitwuzla Bitwuzla-fixed_default sat ✅ 382.36100 382.35600
cvc5 cvc5-default-2023-05-16-ea045f305_sq unknown ❌ 1200.03000 1196.83000
UltimateEliminator UltimateEliminator+MathSAT-5.6.9_default unknown ❌ 6.80247 4.31881
SMT-COMP 2024 0.50 (1/2) Bitwuzla Bitwuzla sat ✅ 142.80085 142.69639
cvc5 cvc5 unknown ❌ 1201.72172 1200.61322