Oris: a tool for modeling, verification and evaluation of real-time systems

  • Giacomo Bucci
  • Laura Carnevali
  • Lorenzo Ridi
  • Enrico Vicario
Regular Paper


Oris is a tool for qualitative verification and quantitative evaluation of reactive timed systems, which supports modeling and analysis of various classes of timed extensions of Petri Nets. As most characterizing features, Oris implements symbolic state space analysis of preemptive Time Petri Nets, which enable schedulability analysis of real-time systems running under priority preemptive scheduling; and stochastic Time Petri Nets, which enable an integrated approach to qualitative verification and quantitative evaluation. In this paper, we present the current version of the tool and we illustrate its application to two different case studies in the areas of qualitative verification and quantitative evaluation, respectively.


Qualitative verification Quantitative evaluation Symbolic state-space enumeration Time Petri Nets Preemptive Time Petri Nets Stochastic Time Petri Nets Difference Bounds Matrix Real-time systems 


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  1. 1.
    Alur, R., Dill, D.L.: Automata for modeling real-time systems. In: 17th ICALP (1990)Google Scholar
  2. 2.
    Bengtsson, J., Larsen, K.G., Larsson, F., Pettersson, P., Yi, W.: UPPAAL: a tool-suite for automatic verification of real-time systems. In: Hybrid Systems III: LNCS, 1066 (1996)Google Scholar
  3. 3.
    Daws, C., Olivero, A., Tripakis, S., Yovine, S.: The tool KRONOS. In: Hybrid Systems III, 1066. Springer (1995)Google Scholar
  4. 4.
    Merlin P., Farber D.: Recoverability of communication protocols. IEEE Trans. Commun. 24(9), 1036–1043 (1976)zbMATHCrossRefMathSciNetGoogle Scholar
  5. 5.
    Berthomieu B., Diaz M.: Modeling and verification of time dependent systems using time petri nets. IEEE Trans. Softw. Eng. 17(3), 259–273 (1991)CrossRefMathSciNetGoogle Scholar
  6. 6.
    Vicario E.: Static analysis and dynamic steering of time dependent systems using Time Petri Nets. IEEE Trans. Softw. Eng. 27(1), 728–748 (2001)CrossRefMathSciNetGoogle Scholar
  7. 7.
    Bucci G., Fedeli A., Sassoli L., Vicario E.: Timed state space analysis of real time preemptive systems. IEEE Trans. Softw. Eng. 30(2), 97–111 (2004)CrossRefGoogle Scholar
  8. 8.
    Altisen, K., Gossler, G., Pnueli, A., Sifakis, J., Tripakis, S., Yovine, S.: A framework for scheduler synthesis. In: RTSS ’99: Proceedings of the 20th IEEE Real-Time Systems Symposium, Washington, DC, USA, 154 pp. IEEE Computer Society (1999)Google Scholar
  9. 9.
    Bertin, V., Closse, E., Poize, M., Pulou, J., Sifakis, J., Venier, P., Weil, D., Yovine, S.: Taxys = Esterel + Kronos. A tool for verifying real-time properties of embedded systems. In: CDC ’01: Proceedings of the 40th IEEE Conference on Decision and Control (2001)Google Scholar
  10. 10.
    Kloukinas, C., Yovine, S.: Synthesis of safe, QoS extendible, application specific schedulers for heterogeneous real-time systems. In: In ECRTS 03: Euromicro Conference on Real-Time Systems, pp. 287–294. IEEE Computer Society Press (2003)Google Scholar
  11. 11.
    Amnell, T., Fersman, E., Mokrushin, L., Pettersson, P., Yi, W.: TIMES: a tool for schedulability analysis and code generation of real-time systems. In: Proceedings of the 1st International Workshop on Formal Modeling and Analysis of Timed Systems (2003)Google Scholar
  12. 12.
    Gardey, G., Lime, D., Magnin, M., Roux, O.: Roméo: a tool for analyzing time petri nets. In: 17th International Conference on Computer Aided Verification (CAVć605). Lecture Notes in Computer Science (2005)Google Scholar
  13. 13.
    Berthomieu B., Ribet P.O., Vernadat F.: The tool TINA—construction of abstract state spaces for petri nets and time petri nets. Int. J. Prod. Res. 42(14), 2741–2756 (2004)zbMATHCrossRefGoogle Scholar
  14. 14.
    Behrmann, G., David, A., Larsen, K.G.: A tutorial on uppaal. In: Bernardo, M., Corradini, F. (eds.) Formal Methods for the Design of Real-Time Systems: 4th International School on Formal Methods for the Design of Computer, Communication, and Software Systems, SFM-RT 2004. LNCS, vol. 3185, pp. 200–236. Springer-Verlag (2004)Google Scholar
  15. 15.
    Amnell T., Fersman E., Mokrushin L., Pettersson P., Yi W.: Times—a tool for modelling and implementation of embedded systems. LNCS 2280, 460–464 (2002)Google Scholar
  16. 16.
    Bucci, G., Fedeli, A., Sassoli, L., Vicario, E.: Modeling flexible real time systems with preemptive Time Petri Nets. In: Proceedings of the 15th Euromicro Conference on Real-Time Systems (ECRTS03) (2003)Google Scholar
  17. 17.
    Vicario E., Sassoli L., Carnevali L.: Using stochastic state classes in quantitative evaluation of dense-time reactive systems. IEEE Trans. Softw. Eng. 35(5), 703–719 (2009)CrossRefGoogle Scholar
  18. 18.
    Carnevali L., Grassi L., Vicario E.: State-density functions over DBM domains in the analysis of non-Markovian models. IEEE Trans. Softw. Eng. 35(2), 178–194 (2009)CrossRefGoogle Scholar
  19. 19.
    Horváth, A., Vicario, E.: Aggregated stochastic state classes in quantitative evaluation of non-markovian Stochastic Petri Nets. In: Proceedings of the 6th Int. Conf. on Quant. Evaluation of Sys. (QEST ’09) (2009)Google Scholar
  20. 20.
    Sassoli, L., Vicario, E.: Close form derivation of state-density functions over DBM domains in the analysis of non-Markovian models. In: Proc. of the 4th Int. Conf. on the Quant. Evaluation of Sys. (QEST) (2007)Google Scholar
  21. 21.
    Bucci, G., Piovosi, R., Sassoli, L., Vicario, E.: Introducing probability within state class analysis of dense time dependent systems. In: Proc. of the 2nd Int. Conf. on Quant. Evaluation of Sys. (QEST ’05) (2005)Google Scholar
  22. 22.
    Carnevali, L., Ridi, L., Vicario, E.: Partial stochastic characterization of timed runs over DBM domains. In: Proc. of the 9th International Workshop on Performability Modeling of Computer and Communication Systems (2009)Google Scholar
  23. 23.
    Cassez, F., Larsen, K.G.: The Impressive Power of Stopwatches. LNCS, vol. 1877 (August, 2000)Google Scholar
  24. 24.
    Roux, O.H., Lime, D.: Time petri nets with inhibitor hyperarcs: formal semantics and state-space computation. In: 25th Int. Conf. on Theory and Application of Petri nets, vol. 3099, pp. 371–390 (2004)Google Scholar
  25. 25.
    Carnevali, L., Grassi, L., Vicario, E.: A tailored V-Model exploiting the theory of preemptive Time Petri Nets. In: Ada-Europe ’08: Proc. of the Ada-Europe Int. Conf. on Reliable Software Technologies, pp. 87–100. Springer-Verlag, Berlin (2008)Google Scholar
  26. 26.
    Carnevali, L., Sassoli, L., Vicario, E.: Sensitization of symbolic runs in real-time testing using the ORIS tool. In: Proc. of the IEEE Conf. on Emerging Technologies and Factory Automation (ETFA) (2007)Google Scholar
  27. 27.
    Carnevali, L., Sassoli, L., Vicario, E.: Casting preemptive Time Petri Nets in the development life cycle of real-time software. In: Proc. of the Euromicro Conference on Real-Time Systems (2007)Google Scholar
  28. 28.
    Bucci G., Sassoli L., Vicario E.: Correctness verification and performance analysis of real time systems using stochastic preemptive Time Petri Nets. IEEE Trans. Softw. Eng. 31(11), 913–927 (2005)CrossRefGoogle Scholar
  29. 29.
    Vicario E.: Engineering the usability of a visual formalism for real-time temporal logic. J. Vis. Lang. Comput. 12(6), 573–599 (2001)CrossRefGoogle Scholar
  30. 30.
    Lusini, M., Vicario, E.: Design and evaluation of a visual formalism for real time logics. In: ACoS ’98/VISUAL ’98, AIN ’97: Selected Papers on Services and Visualization: Towards User-Friendly Design, pp. 158–173. Springer-Verlag, London (1998)Google Scholar
  31. 31.
    Carnevali, L., D’Amico, D., Ridi, L., Vicario, E.: Automatic code generation from real-time systems specifications. In: Proceedings of the IEEE/IFIP International Symposium on Rapid System Prototyping (RSP) (2009)Google Scholar
  32. 32.
    Dept. of Aerospace Eng. of the Polytechnic of Milan: RTAI: Real Time Application Interface for Linux.
  33. 33.
    Sha L., Rajkumar R., Lehoczky J.P.: Priority inheritance protocols: an approach to real-time synchronization. IEEE Trans. Comput. 39(9), 1175–1185 (1990)CrossRefMathSciNetGoogle Scholar
  34. 34.
    Berthomieu, B., Menasche, M.: An enumerative approach for analyzing time Petri nets. In Mason, R.E.A. (ed.) Information Processing: Proceedings of the IFIP Congress 1983, vol. 9, pp. 41–46. Elsevier (1983)Google Scholar
  35. 35.
    Dill, D.: Timing assumptions and verification of finite-state concurrent systems. In: Proceedings of Workshop on Computer Aided Verification Methods for Finite State Systems (1989)Google Scholar
  36. 36.
    Clarke E.M., Emerson E.A., Sistla A.P.: Automatic verification of finite-state concurrent systems using temporal logic specifications. ACM Trans. Program. Lang. Syst. 8(2), 244–263 (1986)zbMATHCrossRefGoogle Scholar
  37. 37.
    De Nicola R., Fantechi A., Gnesi S., Ristori G.: An action-based framework for verifying logical and behavioural properties of concurrent systems. Comput. Netw. ISDN Syst. 25(7), 761–778 (1993)zbMATHCrossRefGoogle Scholar
  38. 38.
    Alur, R., Henzinger, T.A.: Logics and models of real-time: a survey. In: Real Time: Theory in Practice, vol. 600, pp. 74–106. Springer-Verlag (1991)Google Scholar
  39. 39.
    Wilhelm R., Engblom J., Ermedahl A., Holsti N., Thesing S., Whalley D., Bernat G., Ferdinand C., Heckmann R., Mitra T., Mueller F., Puaut I., Puschner P., Statshulat J., Stenstroem P.: Priority inheritance protocols: the worst case execution-time problem: overview of methods and survey of tools. ACM Trans. Embed. Comput. Syst. 7(3), 1–53 (2008)CrossRefGoogle Scholar
  40. 40.
    Lorentz G.: Bernstein Polynomials. University of Toronto Press, Toronto (1953)zbMATHGoogle Scholar
  41. 41.
    Sauer T.: Multivariate Bernstein polynomials and convexity. Comput. Aided Geom. Des. 8(6), 465–478 (1991)zbMATHCrossRefMathSciNetGoogle Scholar
  42. 42.
    Wolfram Research: Mathemathica 5.2.
  43. 43.
    Carnevali, L., Ridi, L., Vicario, E.: Stochastic fault trees for cross-layer power management of wsn monitoring systems. In: Proceedings of the IEEE Conference on Emerging Technologies and Factory Automation (ETFA) (2009)Google Scholar
  44. 44.
    Bucci, G., Carnevali, L., Vicario, E.: A tool supporting evaluation of non-markovian fault trees. In: Proceedings of the 5th Int. Conf. on Quant. Evaluation of Sys. (QEST ’05) (2008)Google Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Giacomo Bucci
    • 1
  • Laura Carnevali
    • 1
  • Lorenzo Ridi
    • 1
  • Enrico Vicario
    • 1
  1. 1.Dipartimento di Sistemi e InformaticaUniversità di FirenzeFirenzeItaly

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