---
_id: '531'
abstract:
- lang: eng
  text: Software transactional memories (STM) are described in the literature with
    assumptions of sequentially consistent program execution and atomicity of high
    level operations like read, write, and abort. However, in a realistic setting,
    processors use relaxed memory models to optimize hardware performance. Moreover,
    the atomicity of operations depends on the underlying hardware. This paper presents
    the first approach to verify STMs under relaxed memory models with atomicity of
    32 bit loads and stores, and read-modify-write operations. We describe RML, a
    simple language for expressing concurrent programs. We develop a semantics of
    RML parametrized by a relaxed memory model. We then present our tool, FOIL, which
    takes as input the RML description of an STM algorithm restricted to two threads
    and two variables, and the description of a memory model, and automatically determines
    the locations of fences, which if inserted, ensure the correctness of the restricted
    STM algorithm under the given memory model. We use FOIL to verify DSTM, TL2, and
    McRT STM under the memory models of sequential consistency, total store order,
    partial store order, and relaxed memory order for two threads and two variables.
    Finally, we extend the verification results for DSTM and TL2 to an arbitrary number
    of threads and variables by manually proving that the structural properties of
    STMs are satisfied at the hardware level of atomicity under the considered relaxed
    memory models.
article_processing_charge: No
article_type: original
author:
- first_name: Rachid
  full_name: Guerraoui, Rachid
  last_name: Guerraoui
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Vasu
  full_name: Singh, Vasu
  id: 4DAE2708-F248-11E8-B48F-1D18A9856A87
  last_name: Singh
citation:
  ama: Guerraoui R, Henzinger TA, Singh V. Verification of STM on relaxed memory models.
    <i>Formal Methods in System Design</i>. 2011;39(3):297-331. doi:<a href="https://doi.org/10.1007/s10703-011-0131-3">10.1007/s10703-011-0131-3</a>
  apa: Guerraoui, R., Henzinger, T. A., &#38; Singh, V. (2011). Verification of STM
    on relaxed memory models. <i>Formal Methods in System Design</i>. Springer. <a
    href="https://doi.org/10.1007/s10703-011-0131-3">https://doi.org/10.1007/s10703-011-0131-3</a>
  chicago: Guerraoui, Rachid, Thomas A Henzinger, and Vasu Singh. “Verification of
    STM on Relaxed Memory Models.” <i>Formal Methods in System Design</i>. Springer,
    2011. <a href="https://doi.org/10.1007/s10703-011-0131-3">https://doi.org/10.1007/s10703-011-0131-3</a>.
  ieee: R. Guerraoui, T. A. Henzinger, and V. Singh, “Verification of STM on relaxed
    memory models,” <i>Formal Methods in System Design</i>, vol. 39, no. 3. Springer,
    pp. 297–331, 2011.
  ista: Guerraoui R, Henzinger TA, Singh V. 2011. Verification of STM on relaxed memory
    models. Formal Methods in System Design. 39(3), 297–331.
  mla: Guerraoui, Rachid, et al. “Verification of STM on Relaxed Memory Models.” <i>Formal
    Methods in System Design</i>, vol. 39, no. 3, Springer, 2011, pp. 297–331, doi:<a
    href="https://doi.org/10.1007/s10703-011-0131-3">10.1007/s10703-011-0131-3</a>.
  short: R. Guerraoui, T.A. Henzinger, V. Singh, Formal Methods in System Design 39
    (2011) 297–331.
date_created: 2018-12-11T11:47:00Z
date_published: 2011-12-01T00:00:00Z
date_updated: 2021-01-12T08:01:27Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/s10703-011-0131-3
intvolume: '        39'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://infoscience.epfl.ch/record/178042/files/art3A10.10072Fs10703-011-0131-3.pdf
month: '12'
oa: 1
oa_version: Published Version
page: 297 - 331
publication: Formal Methods in System Design
publication_status: published
publisher: Springer
publist_id: '7288'
quality_controlled: '1'
scopus_import: 1
status: public
title: Verification of STM on relaxed memory models
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 39
year: '2011'
...
---
_id: '5379'
abstract:
- lang: eng
  text: Computing the winning set for Büchi objectives in alternating games on graphs
    is a central problem in computer aided verification with a large number of applications.
    The long standing best known upper bound for solving the problem is ̃O(n·m), where
    n is the number of vertices and m is the number of edges in the graph. We are
    the first to break the ̃O(n·m) boundary by presenting a new technique that reduces
    the running time to O(n2). This bound also leads to O(n2) time algorithms for
    computing the set of almost-sure winning vertices for Büchi objectives (1) in
    alternating games with probabilistic transitions (improving an earlier bound of
    O(n·m)), (2) in concurrent graph games with constant actions (improving an earlier
    bound of O(n3)), and (3) in Markov decision processes (improving for m > n4/3
    an earlier bound of O(min(m1.5, m·n2/3)). We also show that the same technique
    can be used to compute the maximal end-component decomposition of a graph in time
    O(n2), which is an improvement over earlier bounds for m > n4/3. Finally, we show
    how to maintain the winning set for Büchi objectives in alternating games under
    a sequence of edge insertions or a sequence of edge deletions in O(n) amortized
    time per operation. This is the first dynamic algorithm for this problem.
alternative_title:
- IST Austria Technical Report
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
citation:
  ama: Chatterjee K, Henzinger MH. <i>An O(N2) Time Algorithm for Alternating Büchi
    Games</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0009">10.15479/AT:IST-2011-0009</a>
  apa: Chatterjee, K., &#38; Henzinger, M. H. (2011). <i>An O(n2) time algorithm for
    alternating Büchi games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0009">https://doi.org/10.15479/AT:IST-2011-0009</a>
  chicago: Chatterjee, Krishnendu, and Monika H Henzinger. <i>An O(N2) Time Algorithm
    for Alternating Büchi Games</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0009">https://doi.org/10.15479/AT:IST-2011-0009</a>.
  ieee: K. Chatterjee and M. H. Henzinger, <i>An O(n2) time algorithm for alternating
    Büchi games</i>. IST Austria, 2011.
  ista: Chatterjee K, Henzinger MH. 2011. An O(n2) time algorithm for alternating
    Büchi games, IST Austria, 20p.
  mla: Chatterjee, Krishnendu, and Monika H. Henzinger. <i>An O(N2) Time Algorithm
    for Alternating Büchi Games</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0009">10.15479/AT:IST-2011-0009</a>.
  short: K. Chatterjee, M.H. Henzinger, An O(N2) Time Algorithm for Alternating Büchi
    Games, IST Austria, 2011.
date_created: 2018-12-12T11:38:59Z
date_published: 2011-07-11T00:00:00Z
date_updated: 2023-02-23T11:15:12Z
day: '11'
ddc:
- '000'
- '004'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0009
file:
- access_level: open_access
  checksum: 0b354264229045d982332fd2cb5b9a26
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:43Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5504'
  file_name: IST-2011-0009_IST-2011-0009.pdf
  file_size: 388665
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '15'
related_material:
  record:
  - id: '3165'
    relation: later_version
    status: public
status: public
title: An O(n2) time algorithm for alternating Büchi games
type: technical_report
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2011'
...
---
_id: '5380'
abstract:
- lang: eng
  text: 'We consider 2-player games played on a finite state space for an infinite
    number of rounds.  The games are concurrent: in each round, the two players (player
    1 and player 2) choose their moves independently and simultaneously; the current
    state and the two moves determine the successor state. We study concurrent games
    with ω-regular winning conditions specified as parity objectives.  We consider
    the qualitative analysis problems: the computation of the almost-sure and limit-sure
    winning set of states, where player 1 can ensure to win with probability 1 and
    with probability arbitrarily close to 1, respectively. In general the almost-sure
    and limit-sure winning strategies require both infinite-memory as well as infinite-precision
    (to describe probabilities). We study the bounded-rationality problem for qualitative
    analysis of concurrent parity games, where the strategy set for player 1 is restricted
    to bounded-resource strategies.  In terms of precision, strategies can be deterministic,
    uniform, finite-precision or infinite-precision;  and in terms of memory, strategies
    can be memoryless, finite-memory or infinite-memory. We present a precise and
    complete characterization of the qualitative winning sets for all combinations
    of classes of strategies. In particular, we show that uniform memoryless strategies
    are as powerful as finite-precision infinite-memory strategies, and infinite-precision
    memoryless strategies are as powerful as infinite-precision finite-memory strategies.  We
    show that the winning sets can be computed in O(n2d+3) time, where n is the size
    of the game structure and 2d is the number of priorities (or colors), and our
    algorithms are symbolic. The membership problem of whether a state belongs to
    a winning set can be decided in NP ∩ coNP. While this complexity is the same as
    for the simpler class of turn-based parity games, where in each state only one
    of the two players has a choice of moves, our algorithms,that are obtained by
    characterization of the winning sets as μ-calculus formulas, are considerably
    more involved than those for turn-based games.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: Chatterjee K. <i>Bounded Rationality in Concurrent Parity Games</i>. IST Austria;
    2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0008">10.15479/AT:IST-2011-0008</a>
  apa: Chatterjee, K. (2011). <i>Bounded rationality in concurrent parity games</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0008">https://doi.org/10.15479/AT:IST-2011-0008</a>
  chicago: Chatterjee, Krishnendu. <i>Bounded Rationality in Concurrent Parity Games</i>.
    IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0008">https://doi.org/10.15479/AT:IST-2011-0008</a>.
  ieee: K. Chatterjee, <i>Bounded rationality in concurrent parity games</i>. IST
    Austria, 2011.
  ista: Chatterjee K. 2011. Bounded rationality in concurrent parity games, IST Austria,
    53p.
  mla: Chatterjee, Krishnendu. <i>Bounded Rationality in Concurrent Parity Games</i>.
    IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0008">10.15479/AT:IST-2011-0008</a>.
  short: K. Chatterjee, Bounded Rationality in Concurrent Parity Games, IST Austria,
    2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-07-11T00:00:00Z
date_updated: 2023-02-23T11:22:53Z
day: '11'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0008
file:
- access_level: open_access
  checksum: 0fd38186409be819a911c4990fa79d1f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:22Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5544'
  file_name: IST-2011-0008_IST-2011-0008.pdf
  file_size: 500399
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '53'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '16'
related_material:
  record:
  - id: '3338'
    relation: later_version
    status: public
status: public
title: Bounded rationality in concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5381'
abstract:
- lang: eng
  text: "In two-player finite-state stochastic games of partial obser- vation on graphs,
    in every state of the graph, the players simultaneously choose an action, and
    their joint actions determine a probability distri- bution over the successor
    states. The game is played for infinitely many rounds and thus the players construct
    an infinite path in the graph. We consider reachability objectives where the first
    player tries to ensure a target state to be visited almost-surely (i.e., with
    probability 1) or pos- itively (i.e., with positive probability), no matter the
    strategy of the second player.\r\n\r\nWe classify such games according to the
    information and to the power of randomization available to the players. On the
    basis of information, the game can be one-sided with either (a) player 1, or (b)
    player 2 having partial observation (and the other player has perfect observation),
    or two- sided with (c) both players having partial observation. On the basis of
    randomization, (a) the players may not be allowed to use randomization (pure strategies),
    or (b) they may choose a probability distribution over actions but the actual
    random choice is external and not visible to the player (actions invisible), or
    (c) they may use full randomization.\r\n\r\nOur main results for pure strategies
    are as follows: (1) For one-sided games with player 2 perfect observation we show
    that (in contrast to full randomized strategies) belief-based (subset-construction
    based) strate- gies are not sufficient, and present an exponential upper bound
    on mem- ory both for almost-sure and positive winning strategies; we show that
    the problem of deciding the existence of almost-sure and positive winning strategies
    for player 1 is EXPTIME-complete and present symbolic algo- rithms that avoid
    the explicit exponential construction. (2) For one-sided games with player 1 perfect
    observation we show that non-elementary memory is both necessary and sufficient
    for both almost-sure and posi- tive winning strategies. (3) We show that for the
    general (two-sided) case finite-memory strategies are sufficient for both positive
    and almost-sure winning, and at least non-elementary memory is required. We establish
    the equivalence of the almost-sure winning problems for pure strategies and for
    randomized strategies with actions invisible. Our equivalence re- sult exhibit
    serious flaws in previous results in the literature: we show a non-elementary
    memory lower bound for almost-sure winning whereas an exponential upper bound
    was previously claimed."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
citation:
  ama: 'Chatterjee K, Doyen L. <i>Partial-Observation Stochastic Games: How to Win
    When Belief Fails</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0007">10.15479/AT:IST-2011-0007</a>'
  apa: 'Chatterjee, K., &#38; Doyen, L. (2011). <i>Partial-observation stochastic
    games: How to win when belief fails</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0007">https://doi.org/10.15479/AT:IST-2011-0007</a>'
  chicago: 'Chatterjee, Krishnendu, and Laurent Doyen. <i>Partial-Observation Stochastic
    Games: How to Win When Belief Fails</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0007">https://doi.org/10.15479/AT:IST-2011-0007</a>.'
  ieee: 'K. Chatterjee and L. Doyen, <i>Partial-observation stochastic games: How
    to win when belief fails</i>. IST Austria, 2011.'
  ista: 'Chatterjee K, Doyen L. 2011. Partial-observation stochastic games: How to
    win when belief fails, IST Austria, 43p.'
  mla: 'Chatterjee, Krishnendu, and Laurent Doyen. <i>Partial-Observation Stochastic
    Games: How to Win When Belief Fails</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0007">10.15479/AT:IST-2011-0007</a>.'
  short: 'K. Chatterjee, L. Doyen, Partial-Observation Stochastic Games: How to Win
    When Belief Fails, IST Austria, 2011.'
date_created: 2018-12-12T11:39:00Z
date_published: 2011-07-05T00:00:00Z
date_updated: 2023-02-23T11:05:48Z
day: '05'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0007
file:
- access_level: open_access
  checksum: 06bf6dfc97f6006e3fd0e9a3f31bc961
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:27Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5488'
  file_name: IST-2011-0007_IST-2011-0007.pdf
  file_size: 574055
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '43'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '17'
related_material:
  record:
  - id: '1903'
    relation: later_version
    status: public
  - id: '2211'
    relation: later_version
    status: public
  - id: '2955'
    relation: later_version
    status: public
status: public
title: 'Partial-observation stochastic games: How to win when belief fails'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5382'
abstract:
- lang: eng
  text: 'We consider two-player stochastic games played on a finite state space for
    an infinite num- ber of rounds. The games are concurrent: in each round, the two
    players (player 1 and player 2) choose their moves independently and simultaneously;
    the current state and the two moves determine a probability distribution over
    the successor states. We also consider the important special case of turn-based
    stochastic games where players make moves in turns, rather than concurrently.
    We study concurrent games with ω-regular winning conditions specified as parity
    objectives. The value for player 1 for a parity objective is the maximal probability
    with which the player can guarantee the satisfaction of the objective against
    all strategies of the opponent. We study the problem of continuity and robustness
    of the value function in concurrent and turn-based stochastic parity games with
    respect to imprecision in the transition probabilities. We present quantitative
    bounds on the difference of the value function (in terms of the imprecision of
    the transition probabilities) and show the value continuity for structurally equivalent
    concurrent games (two games are structurally equivalent if the support of the
    transition func- tion is same and the probabilities differ). We also show robustness
    of optimal strategies for structurally equivalent turn-based stochastic parity
    games. Finally we show that the value continuity property breaks without the structurally
    equivalent assumption (even for Markov chains) and show that our quantitative
    bound is asymptotically optimal. Hence our results are tight (the assumption is
    both necessary and sufficient) and optimal (our quantitative bound is asymptotically
    optimal).'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: Chatterjee K. <i>Robustness of Structurally Equivalent Concurrent Parity Games</i>.
    IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0006">10.15479/AT:IST-2011-0006</a>
  apa: Chatterjee, K. (2011). <i>Robustness of structurally equivalent concurrent
    parity games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0006">https://doi.org/10.15479/AT:IST-2011-0006</a>
  chicago: Chatterjee, Krishnendu. <i>Robustness of Structurally Equivalent Concurrent
    Parity Games</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0006">https://doi.org/10.15479/AT:IST-2011-0006</a>.
  ieee: K. Chatterjee, <i>Robustness of structurally equivalent concurrent parity
    games</i>. IST Austria, 2011.
  ista: Chatterjee K. 2011. Robustness of structurally equivalent concurrent parity
    games, IST Austria, 18p.
  mla: Chatterjee, Krishnendu. <i>Robustness of Structurally Equivalent Concurrent
    Parity Games</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0006">10.15479/AT:IST-2011-0006</a>.
  short: K. Chatterjee, Robustness of Structurally Equivalent Concurrent Parity Games,
    IST Austria, 2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-06-27T00:00:00Z
date_updated: 2023-02-23T11:23:01Z
day: '27'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0006
file:
- access_level: open_access
  checksum: 1322b652d6ab07eb5248298a3f91c1cf
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:24Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5546'
  file_name: IST-2011-0006_IST-2011-0006.pdf
  file_size: 335997
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '18'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '18'
related_material:
  record:
  - id: '3341'
    relation: later_version
    status: public
status: public
title: Robustness of structurally equivalent concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5383'
abstract:
- lang: eng
  text: We present a new decidable logic called TREX for expressing constraints about
    imperative tree data structures. In particular, TREX supports a transitive closure
    operator that can express reachability constraints, which often appear in data
    structure invariants. We show that our logic is closed under weakest precondition
    computation, which enables its use for automated software verification. We further
    show that satisfiability of formulas in TREX is decidable in NP. The low complexity
    makes it an attractive alternative to more expensive logics such as monadic second-order
    logic (MSOL) over trees, which have been traditionally used for reasoning about
    tree data structures.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas
  full_name: Wies, Thomas
  id: 447BFB88-F248-11E8-B48F-1D18A9856A87
  last_name: Wies
- first_name: Marco
  full_name: Muñiz, Marco
  last_name: Muñiz
- first_name: Viktor
  full_name: Kuncak, Viktor
  last_name: Kuncak
citation:
  ama: Wies T, Muñiz M, Kuncak V. <i>On an Efficient Decision Procedure for Imperative
    Tree Data Structures</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0005">10.15479/AT:IST-2011-0005</a>
  apa: Wies, T., Muñiz, M., &#38; Kuncak, V. (2011). <i>On an efficient decision procedure
    for imperative tree data structures</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0005">https://doi.org/10.15479/AT:IST-2011-0005</a>
  chicago: Wies, Thomas, Marco Muñiz, and Viktor Kuncak. <i>On an Efficient Decision
    Procedure for Imperative Tree Data Structures</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0005">https://doi.org/10.15479/AT:IST-2011-0005</a>.
  ieee: T. Wies, M. Muñiz, and V. Kuncak, <i>On an efficient decision procedure for
    imperative tree data structures</i>. IST Austria, 2011.
  ista: Wies T, Muñiz M, Kuncak V. 2011. On an efficient decision procedure for imperative
    tree data structures, IST Austria, 25p.
  mla: Wies, Thomas, et al. <i>On an Efficient Decision Procedure for Imperative Tree
    Data Structures</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0005">10.15479/AT:IST-2011-0005</a>.
  short: T. Wies, M. Muñiz, V. Kuncak, On an Efficient Decision Procedure for Imperative
    Tree Data Structures, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-26T00:00:00Z
date_updated: 2023-02-23T11:22:16Z
day: '26'
ddc:
- '000'
- '006'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2011-0005
file:
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  checksum: b20029184c4a819c5f4466a4a3d238b5
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:01Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5462'
  file_name: IST-2011-0005_IST-2011-0005.pdf
  file_size: 619053
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file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '25'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '19'
related_material:
  record:
  - id: '3323'
    relation: later_version
    status: public
status: public
title: On an efficient decision procedure for imperative tree data structures
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5384'
abstract:
- lang: eng
  text: 'We consider probabilistic automata on infinite words with acceptance defined
    by parity conditions. We consider three qualitative decision problems: (i) the
    positive decision problem asks whether there is a word that is accepted with positive
    probability; (ii) the almost decision problem asks whether there is a word that
    is accepted with probability 1; and (iii) the limit decision problem asks whether
    for every ε > 0 there is a word that is accepted with probability at least 1 −
    ε. We unify and generalize several decidability results for probabilistic automata
    over infinite words, and identify a robust (closed under union and intersection)
    subclass of probabilistic automata for which all the qualitative decision problems
    are decidable for parity conditions. We also show that if the input words are
    restricted to lasso shape words, then the positive and almost problems are decidable
    for all probabilistic automata with parity conditions.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Mathieu
  full_name: Tracol, Mathieu
  id: 3F54FA38-F248-11E8-B48F-1D18A9856A87
  last_name: Tracol
citation:
  ama: Chatterjee K, Tracol M. <i>Decidable Problems for Probabilistic Automata on
    Infinite Words</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0004">10.15479/AT:IST-2011-0004</a>
  apa: Chatterjee, K., &#38; Tracol, M. (2011). <i>Decidable problems for probabilistic
    automata on infinite words</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0004">https://doi.org/10.15479/AT:IST-2011-0004</a>
  chicago: Chatterjee, Krishnendu, and Mathieu Tracol. <i>Decidable Problems for Probabilistic
    Automata on Infinite Words</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0004">https://doi.org/10.15479/AT:IST-2011-0004</a>.
  ieee: K. Chatterjee and M. Tracol, <i>Decidable problems for probabilistic automata
    on infinite words</i>. IST Austria, 2011.
  ista: Chatterjee K, Tracol M. 2011. Decidable problems for probabilistic automata
    on infinite words, IST Austria, 30p.
  mla: Chatterjee, Krishnendu, and Mathieu Tracol. <i>Decidable Problems for Probabilistic
    Automata on Infinite Words</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0004">10.15479/AT:IST-2011-0004</a>.
  short: K. Chatterjee, M. Tracol, Decidable Problems for Probabilistic Automata on
    Infinite Words, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-11T00:00:00Z
date_updated: 2023-02-23T11:05:53Z
day: '11'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0004
file:
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  checksum: f5a0f664fadc335990f5fcf138df19f1
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:23Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5545'
  file_name: IST-2011-004_IST-2011-0004.pdf
  file_size: 570827
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '30'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '20'
related_material:
  record:
  - id: '2957'
    relation: later_version
    status: public
status: public
title: Decidable problems for probabilistic automata on infinite words
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5385'
abstract:
- lang: eng
  text: There is recently a significant effort to add quantitative objectives to formal
    verification and synthesis. We introduce and investigate the extension of temporal
    logics with quantitative atomic assertions, aiming for a general and flexible
    framework for quantitative-oriented specifications. In the heart of quantitative
    objectives lies the accumulation of values along a computation. It is either the
    accumulated summation, as with the energy objectives, or the accumulated average,
    as with the mean-payoff objectives. We investigate the extension of temporal logics
    with the prefix-accumulation assertions Sum(v) ≥ c and Avg(v) ≥ c, where v is
    a numeric variable of the system, c is a constant rational number, and Sum(v)
    and Avg(v) denote the accumulated sum and average of the values of v from the
    beginning of the computation up to the current point of time. We also allow the
    path-accumulation assertions LimInfAvg(v) ≥ c and LimSupAvg(v) ≥ c, referring
    to the average value along an entire computation. We study the border of decidability
    for extensions of various temporal logics. In particular, we show that extending
    the fragment of CTL that has only the EX, EF, AX, and AG temporal modalities by
    prefix-accumulation assertions and extending LTL with path-accumulation assertions,
    result in temporal logics whose model-checking problem is decidable. The extended
    logics allow to significantly extend the currently known energy and mean-payoff
    objectives. Moreover, the prefix-accumulation assertions may be refined with “controlled-accumulation”,
    allowing, for example, to specify constraints on the average waiting time between
    a request and a grant. On the negative side, we show that the fragment we point
    to is, in a sense, the maximal logic whose extension with prefix-accumulation
    assertions permits a decidable model-checking procedure. Extending a temporal
    logic that has the EG or EU modalities, and in particular CTL and LTL, makes the
    problem undecidable.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Udi
  full_name: Boker, Udi
  id: 31E297B6-F248-11E8-B48F-1D18A9856A87
  last_name: Boker
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Orna
  full_name: Kupferman, Orna
  last_name: Kupferman
citation:
  ama: Boker U, Chatterjee K, Henzinger TA, Kupferman O. <i>Temporal Specifications
    with Accumulative Values</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0003">10.15479/AT:IST-2011-0003</a>
  apa: Boker, U., Chatterjee, K., Henzinger, T. A., &#38; Kupferman, O. (2011). <i>Temporal
    specifications with accumulative values</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0003">https://doi.org/10.15479/AT:IST-2011-0003</a>
  chicago: Boker, Udi, Krishnendu Chatterjee, Thomas A Henzinger, and Orna Kupferman.
    <i>Temporal Specifications with Accumulative Values</i>. IST Austria, 2011. <a
    href="https://doi.org/10.15479/AT:IST-2011-0003">https://doi.org/10.15479/AT:IST-2011-0003</a>.
  ieee: U. Boker, K. Chatterjee, T. A. Henzinger, and O. Kupferman, <i>Temporal specifications
    with accumulative values</i>. IST Austria, 2011.
  ista: Boker U, Chatterjee K, Henzinger TA, Kupferman O. 2011. Temporal specifications
    with accumulative values, IST Austria, 14p.
  mla: Boker, Udi, et al. <i>Temporal Specifications with Accumulative Values</i>.
    IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0003">10.15479/AT:IST-2011-0003</a>.
  short: U. Boker, K. Chatterjee, T.A. Henzinger, O. Kupferman, Temporal Specifications
    with Accumulative Values, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-04-04T00:00:00Z
date_updated: 2023-02-23T11:23:41Z
day: '04'
ddc:
- '000'
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.15479/AT:IST-2011-0003
ec_funded: 1
file:
- access_level: open_access
  checksum: 8491d0d48c4911620ecd5350b413c11e
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:00Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5461'
  file_name: IST-2011-0003_IST-2011-0003.pdf
  file_size: 366281
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '14'
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '21'
related_material:
  record:
  - id: '2038'
    relation: later_version
    status: public
  - id: '3356'
    relation: later_version
    status: public
status: public
title: Temporal specifications with accumulative values
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5386'
abstract:
- lang: eng
  text: 'We introduce TopoCut: a new way to integrate knowledge about topological
    properties (TPs) into random field image segmentation model. Instead of including
    TPs as additional constraints during minimization of the energy function, we devise
    an efficient algorithm for modifying the unary potentials such that the resulting
    segmentation is guaranteed with the desired properties. Our method is more flexible
    in the sense that it handles more topology constraints than previous methods,
    which were only able to enforce pairwise or global connectivity. In particular,
    our method is very fast, making it for the first time possible to enforce global
    topological properties in practical image segmentation tasks.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Daniel
  full_name: Freedman, Daniel
  last_name: Freedman
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
citation:
  ama: Chen C, Freedman D, Lampert C. <i>Enforcing Topological Constraints in Random
    Field Image Segmentation</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0002">10.15479/AT:IST-2011-0002</a>
  apa: Chen, C., Freedman, D., &#38; Lampert, C. (2011). <i>Enforcing topological
    constraints in random field image segmentation</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0002">https://doi.org/10.15479/AT:IST-2011-0002</a>
  chicago: Chen, Chao, Daniel Freedman, and Christoph Lampert. <i>Enforcing Topological
    Constraints in Random Field Image Segmentation</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0002">https://doi.org/10.15479/AT:IST-2011-0002</a>.
  ieee: C. Chen, D. Freedman, and C. Lampert, <i>Enforcing topological constraints
    in random field image segmentation</i>. IST Austria, 2011.
  ista: Chen C, Freedman D, Lampert C. 2011. Enforcing topological constraints in
    random field image segmentation, IST Austria, 69p.
  mla: Chen, Chao, et al. <i>Enforcing Topological Constraints in Random Field Image
    Segmentation</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0002">10.15479/AT:IST-2011-0002</a>.
  short: C. Chen, D. Freedman, C. Lampert, Enforcing Topological Constraints in Random
    Field Image Segmentation, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-03-28T00:00:00Z
date_updated: 2023-02-23T11:22:48Z
day: '28'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.15479/AT:IST-2011-0002
file:
- access_level: open_access
  checksum: ad64c2add5fe2ad10e9d5c669f3f9526
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:34Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5495'
  file_name: IST-2011-0002_IST-2011-0002.pdf
  file_size: 26390601
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '69'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '22'
related_material:
  record:
  - id: '3336'
    relation: later_version
    status: public
status: public
title: Enforcing topological constraints in random field image segmentation
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
