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https://github.com/RobertObkircher/sat-solver
CDCL SAT Solver
https://github.com/RobertObkircher/sat-solver
cdcl sat sat-solver
Last synced: 1 day ago
JSON representation
CDCL SAT Solver
- Host: GitHub
- URL: https://github.com/RobertObkircher/sat-solver
- Owner: RobertObkircher
- Created: 2023-10-23T16:05:42.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2023-10-27T12:26:27.000Z (about 1 year ago)
- Last Synced: 2024-05-22T19:32:25.361Z (6 months ago)
- Topics: cdcl, sat, sat-solver
- Language: Rust
- Homepage:
- Size: 78.1 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-rust-formalized-reasoning - sat-solver - simple CDCL SAT solver based on the lecture 185.A93 Formal Methods in CS at TU Wien. (Projects / Provers and Solvers)
README
# sat-solver
A simple SAT solver based on the lecture `185.A93 Formal Methods in Computer Science` at TU Wien.
# benchmark
- The input files were from https://www.cs.ubc.ca/~hoos/SATLIB/benchm.html, but
for some reason they had `%`, `0`, and a newline at the end,
which I removed with `for f in *.cnf; do head -n -3 "$f" > "${f}2"; done; rm *.cnf`.
- script: `./benchmark.sh`
- On small instances, the performance is similar to `minisat`, but on larger ones we are much slower:
Uniform Random-3-SAT: 50 variables, 218 clauses - 1000 instances, all SAT
```
Benchmark 1: for f in inputs/uf50-218/*.cnf2; do target/release/sat-solver "$f"; done
Time (mean ± σ): 3.823 s ± 0.458 s [User: 2.744 s, System: 1.056 s]
Range (min … max): 3.040 s … 4.528 s 10 runs
Benchmark 2: for f in inputs/uf50-218/*.cnf2; do minisat -verb=0 "$f"; done; exit 0
Time (mean ± σ): 4.643 s ± 1.227 s [User: 2.557 s, System: 2.061 s]
Range (min … max): 3.324 s … 7.241 s 10 runs
Summary
for f in inputs/uf50-218/*.cnf2; do target/release/sat-solver "$f"; done ran
1.21 ± 0.35 times faster than for f in inputs/uf50-218/*.cnf2; do minisat -verb=0 "$f"; done; exit 0
```
Uniform Random-3-SAT: 50 variables, 218 clauses - 1000 instances, all UNSAT
```
Benchmark 1: for f in inputs/uuf50-218/*.cnf2; do target/release/sat-solver "$f"; done
Time (mean ± σ): 5.227 s ± 0.745 s [User: 4.140 s, System: 1.067 s]
Range (min … max): 4.160 s … 6.787 s 10 runs
Benchmark 2: for f in inputs/uuf50-218/*.cnf2; do minisat -verb=0 "$f"; done; exit 0
Time (mean ± σ): 4.466 s ± 0.751 s [User: 2.520 s, System: 1.921 s]
Range (min … max): 3.442 s … 5.747 s 10 runs
Summary
for f in inputs/uuf50-218/*.cnf2; do minisat -verb=0 "$f"; done; exit 0 ran
1.17 ± 0.26 times faster than for f in inputs/uuf50-218/*.cnf2; do target/release/sat-solver "$f"; done
```
Uniform Random-3-SAT: 150 variables, 645 clauses - 100 instances, all SAT
```
Benchmark 1: for f in inputs/uf150-645/*.cnf2; do target/release/sat-solver "$f"; done
Time (mean ± σ): 100.024 s ± 0.086 s [User: 99.883 s, System: 0.133 s]
Range (min … max): 99.928 s … 100.094 s 3 runs
Benchmark 2: for f in inputs/uf150-645/*.cnf2; do minisat -verb=0 "$f"; done; exit 0
Time (mean ± σ): 1.198 s ± 0.002 s [User: 1.001 s, System: 0.195 s]
Range (min … max): 1.196 s … 1.200 s 3 runs
Summary
for f in inputs/uf150-645/*.cnf2; do minisat -verb=0 "$f"; done; exit 0 ran
83.47 ± 0.17 times faster than for f in inputs/uf150-645/*.cnf2; do target/release/sat-solver "$f"; done
```
Uniform Random-3-SAT: 150 variables, 645 clauses - 100 instances, all UNSAT
```
Benchmark 1: for f in inputs/uuf150-645/*.cnf2; do target/release/sat-solver "$f"; done
Time (mean ± σ): 377.046 s ± 0.161 s [User: 376.811 s, System: 0.208 s]
Range (min … max): 376.868 s … 377.183 s 3 runs
Benchmark 2: for f in inputs/uuf150-645/*.cnf2; do minisat -verb=0 "$f"; done; exit 0
Time (mean ± σ): 2.574 s ± 0.005 s [User: 2.354 s, System: 0.217 s]
Range (min … max): 2.570 s … 2.580 s 3 runs
Summary
for f in inputs/uuf150-645/*.cnf2; do minisat -verb=0 "$f"; done; exit 0 ran
146.49 ± 0.31 times faster than for f in inputs/uuf150-645/*.cnf2; do target/release/sat-solver "$f"; done
```