./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version efd9311c
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 18:48:31,437 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 18:48:31,444 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 18:48:31,464 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 18:48:31,465 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 18:48:31,466 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 18:48:31,466 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 18:48:31,468 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 18:48:31,469 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 18:48:31,469 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 18:48:31,470 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 18:48:31,471 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 18:48:31,471 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 18:48:31,472 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 18:48:31,472 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 18:48:31,473 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 18:48:31,474 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 18:48:31,474 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 18:48:31,475 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 18:48:31,476 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 18:48:31,477 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 18:48:31,478 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 18:48:31,479 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 18:48:31,480 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 18:48:31,480 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 18:48:31,482 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 18:48:31,482 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 18:48:31,482 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 18:48:31,483 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 18:48:31,483 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 18:48:31,484 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 18:48:31,484 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 18:48:31,485 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 18:48:31,485 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 18:48:31,486 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 18:48:31,486 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 18:48:31,487 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 18:48:31,487 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 18:48:31,487 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 18:48:31,487 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 18:48:31,488 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 18:48:31,492 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 18:48:31,492 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 18:48:31,511 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 18:48:31,514 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 18:48:31,514 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 18:48:31,515 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 18:48:31,515 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 18:48:31,515 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 18:48:31,515 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 18:48:31,516 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 18:48:31,516 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 18:48:31,516 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 18:48:31,516 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 18:48:31,517 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 18:48:31,517 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 18:48:31,517 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 18:48:31,517 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 18:48:31,517 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 18:48:31,518 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 18:48:31,518 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 18:48:31,519 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 18:48:31,519 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 18:48:31,519 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 18:48:31,519 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 18:48:31,520 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 18:48:31,520 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 18:48:31,520 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 18:48:31,520 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 18:48:31,520 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 18:48:31,520 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 18:48:31,521 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 18:48:31,521 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 18:48:31,521 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 18:48:31,521 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 18:48:31,521 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 18:48:31,521 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 18:48:31,521 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:48:31,522 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 18:48:31,522 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 18:48:31,522 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 18:48:31,522 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 18:48:31,522 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 18:48:31,522 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 18:48:31,522 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 18:48:31,523 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 18:48:31,523 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f
[2022-04-18 18:48:31,743 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 18:48:31,758 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 18:48:31,759 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 18:48:31,760 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 18:48:31,760 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 18:48:31,761 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i
[2022-04-18 18:48:31,799 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29d0745a8/b44aeb91a64743f6adf20d9e6678772b/FLAG761d742b9
[2022-04-18 18:48:32,361 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 18:48:32,362 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i
[2022-04-18 18:48:32,382 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29d0745a8/b44aeb91a64743f6adf20d9e6678772b/FLAG761d742b9
[2022-04-18 18:48:32,848 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29d0745a8/b44aeb91a64743f6adf20d9e6678772b
[2022-04-18 18:48:32,850 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 18:48:32,851 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 18:48:32,852 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 18:48:32,852 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 18:48:32,870 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 18:48:32,870 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:48:32" (1/1) ...
[2022-04-18 18:48:32,871 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2fa70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:32, skipping insertion in model container
[2022-04-18 18:48:32,871 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:48:32" (1/1) ...
[2022-04-18 18:48:32,875 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 18:48:32,904 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 18:48:33,312 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482]
[2022-04-18 18:48:33,357 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055]
[2022-04-18 18:48:33,365 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464]
[2022-04-18 18:48:33,376 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:48:33,383 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 18:48:33,411 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482]
[2022-04-18 18:48:33,425 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055]
[2022-04-18 18:48:33,428 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464]
[2022-04-18 18:48:33,436 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:48:33,530 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 18:48:33,531 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33 WrapperNode
[2022-04-18 18:48:33,531 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 18:48:33,532 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 18:48:33,532 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 18:48:33,532 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 18:48:33,537 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,630 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,714 INFO  L137                Inliner]: procedures = 489, calls = 128, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3207
[2022-04-18 18:48:33,714 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 18:48:33,715 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 18:48:33,715 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 18:48:33,715 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 18:48:33,721 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,721 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,744 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,744 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,835 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,857 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,867 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,890 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 18:48:33,891 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 18:48:33,891 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 18:48:33,891 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 18:48:33,892 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ...
[2022-04-18 18:48:33,896 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:48:33,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 18:48:33,916 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-04-18 18:48:33,934 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-04-18 18:48:33,942 INFO  L130     BoogieDeclarations]: Found specification of procedure Stealer
[2022-04-18 18:48:33,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure Stealer
[2022-04-18 18:48:33,942 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 18:48:33,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 18:48:33,943 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 18:48:33,944 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-04-18 18:48:33,944 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 18:48:33,944 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 18:48:33,945 WARN  L208             CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-04-18 18:48:34,176 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 18:48:34,177 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 18:48:36,581 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 18:48:37,372 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 18:48:37,373 INFO  L299             CfgBuilder]: Removed 11 assume(true) statements.
[2022-04-18 18:48:37,376 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:48:37 BoogieIcfgContainer
[2022-04-18 18:48:37,376 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 18:48:37,377 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 18:48:37,378 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 18:48:37,380 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 18:48:37,380 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:48:32" (1/3) ...
[2022-04-18 18:48:37,380 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a05f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:48:37, skipping insertion in model container
[2022-04-18 18:48:37,380 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (2/3) ...
[2022-04-18 18:48:37,381 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a05f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:48:37, skipping insertion in model container
[2022-04-18 18:48:37,381 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:48:37" (3/3) ...
[2022-04-18 18:48:37,382 INFO  L111   eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i
[2022-04-18 18:48:37,385 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 18:48:37,385 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 18:48:37,385 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 258 error locations.
[2022-04-18 18:48:37,385 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 18:48:37,522 INFO  L135    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-04-18 18:48:37,547 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:48:37,551 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP
[2022-04-18 18:48:37,551 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 281 error locations.
[2022-04-18 18:48:37,574 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:48:37,582 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2392 places, 2441 transitions, 4890 flow
[2022-04-18 18:48:37,583 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 2392 places, 2441 transitions, 4890 flow
[2022-04-18 18:48:37,584 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 2392 places, 2441 transitions, 4890 flow
[2022-04-18 18:48:38,769 INFO  L129       PetriNetUnfolder]: 97/4537 cut-off events.
[2022-04-18 18:48:38,769 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-04-18 18:48:38,826 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 4537 events. 97/4537 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 23591 event pairs, 0 based on Foata normal form. 0/3951 useless extension candidates. Maximal degree in co-relation 2315. Up to 10 conditions per place. 
[2022-04-18 18:48:39,061 INFO  L116        LiptonReduction]: Number of co-enabled transitions 899656
[2022-04-18 18:49:37,309 WARN  L230               Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory")

[2022-04-18 18:49:37,310 FATAL L?                        ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")

	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1154)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:197)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.containsLBool(SemanticIndependenceRelation.java:145)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:123)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:1)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.lambda$2(UnionIndependenceRelation.java:70)
	at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90)
	at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.contains(UnionIndependenceRelation.java:70)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.CachedIndependenceRelation.contains(CachedIndependenceRelation.java:120)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$1(LiptonReduction.java:465)
	at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90)
	at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1624)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isRightMover(LiptonReduction.java:465)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:408)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:310)
	at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.<init>(LiptonReduction.java:126)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.petrinetlbe.PetriNetLargeBlockEncoding.<init>(PetriNetLargeBlockEncoding.java:133)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:345)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.computeInitialAbstraction(AbstractCegarLoop.java:367)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:153)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658)
	at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239)
	... 60 more
[2022-04-18 18:49:37,315 INFO  L158              Benchmark]: Toolchain (without parser) took 64463.47ms. Allocated memory was 119.5MB in the beginning and 864.0MB in the end (delta: 744.5MB). Free memory was 94.8MB in the beginning and 442.1MB in the end (delta: -347.2MB). Peak memory consumption was 401.7MB. Max. memory is 16.1GB.
[2022-04-18 18:49:37,316 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 62.2MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-04-18 18:49:37,316 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 679.81ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 88.6MB in the end (delta: 6.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB.
[2022-04-18 18:49:37,316 INFO  L158              Benchmark]: Boogie Procedure Inliner took 182.48ms. Allocated memory is still 119.5MB. Free memory was 88.6MB in the beginning and 68.2MB in the end (delta: 20.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2022-04-18 18:49:37,317 INFO  L158              Benchmark]: Boogie Preprocessor took 174.93ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 70.2MB in the end (delta: -2.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB.
[2022-04-18 18:49:37,317 INFO  L158              Benchmark]: RCFGBuilder took 3485.85ms. Allocated memory was 119.5MB in the beginning and 432.0MB in the end (delta: 312.5MB). Free memory was 70.2MB in the beginning and 341.6MB in the end (delta: -271.4MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB.
[2022-04-18 18:49:37,318 INFO  L158              Benchmark]: TraceAbstraction took 59936.21ms. Allocated memory was 432.0MB in the beginning and 864.0MB in the end (delta: 432.0MB). Free memory was 340.6MB in the beginning and 442.1MB in the end (delta: -101.5MB). Peak memory consumption was 336.0MB. Max. memory is 16.1GB.
[2022-04-18 18:49:37,320 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
[2022-04-18 18:49:37,312 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 62.2MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 679.81ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 88.6MB in the end (delta: 6.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 182.48ms. Allocated memory is still 119.5MB. Free memory was 88.6MB in the beginning and 68.2MB in the end (delta: 20.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 174.93ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 70.2MB in the end (delta: -2.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB.
 * RCFGBuilder took 3485.85ms. Allocated memory was 119.5MB in the beginning and 432.0MB in the end (delta: 312.5MB). Free memory was 70.2MB in the beginning and 341.6MB in the end (delta: -271.4MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB.
 * TraceAbstraction took 59936.21ms. Allocated memory was 432.0MB in the beginning and 864.0MB in the end (delta: 432.0MB). Free memory was 340.6MB in the beginning and 442.1MB in the end (delta: -101.5MB). Peak memory consumption was 336.0MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")

    de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 18:49:38,842 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 18:49:38,844 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 18:49:38,876 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 18:49:38,876 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 18:49:38,877 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 18:49:38,878 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 18:49:38,881 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 18:49:38,884 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 18:49:38,887 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 18:49:38,888 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 18:49:38,890 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 18:49:38,890 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 18:49:38,891 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 18:49:38,892 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 18:49:38,896 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 18:49:38,896 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 18:49:38,898 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 18:49:38,899 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 18:49:38,904 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 18:49:38,905 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 18:49:38,906 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 18:49:38,907 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 18:49:38,908 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 18:49:38,909 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 18:49:38,914 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 18:49:38,914 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 18:49:38,914 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 18:49:38,915 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 18:49:38,915 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 18:49:38,916 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 18:49:38,916 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 18:49:38,917 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 18:49:38,918 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 18:49:38,919 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 18:49:38,919 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 18:49:38,919 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 18:49:38,920 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 18:49:38,920 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 18:49:38,920 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 18:49:38,921 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 18:49:38,921 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 18:49:38,922 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf
[2022-04-18 18:49:38,957 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 18:49:38,958 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 18:49:38,958 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 18:49:38,958 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 18:49:38,959 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 18:49:38,959 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 18:49:38,959 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 18:49:38,960 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 18:49:38,960 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 18:49:38,960 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 18:49:38,960 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 18:49:38,961 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 18:49:38,961 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 18:49:38,961 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 18:49:38,962 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 18:49:38,963 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 18:49:38,963 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-04-18 18:49:38,964 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 18:49:38,964 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:49:38,964 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 18:49:38,964 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 18:49:38,964 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 18:49:38,965 INFO  L138        SettingsManager]:  * Trace refinement strategy=WALRUS
[2022-04-18 18:49:38,965 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-04-18 18:49:38,965 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 18:49:38,965 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 18:49:38,965 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 18:49:38,965 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f
[2022-04-18 18:49:39,247 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 18:49:39,267 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 18:49:39,269 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 18:49:39,270 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 18:49:39,271 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 18:49:39,272 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i
[2022-04-18 18:49:39,329 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/909f5629c/adaa81c8f7234e189d7e2824dbee05fd/FLAG52bd919b5
[2022-04-18 18:49:39,704 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 18:49:39,704 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i
[2022-04-18 18:49:39,719 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/909f5629c/adaa81c8f7234e189d7e2824dbee05fd/FLAG52bd919b5
[2022-04-18 18:49:40,056 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/909f5629c/adaa81c8f7234e189d7e2824dbee05fd
[2022-04-18 18:49:40,058 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 18:49:40,059 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 18:49:40,061 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 18:49:40,061 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 18:49:40,064 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 18:49:40,064 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:40,065 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc22835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40, skipping insertion in model container
[2022-04-18 18:49:40,066 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:40,071 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 18:49:40,124 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 18:49:40,601 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482]
[2022-04-18 18:49:40,630 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055]
[2022-04-18 18:49:40,635 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464]
[2022-04-18 18:49:40,643 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:49:40,651 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 18:49:40,675 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482]
[2022-04-18 18:49:40,703 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055]
[2022-04-18 18:49:40,706 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464]
[2022-04-18 18:49:40,714 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:49:40,798 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 18:49:40,798 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40 WrapperNode
[2022-04-18 18:49:40,798 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 18:49:40,804 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 18:49:40,804 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 18:49:40,804 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 18:49:40,809 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:40,865 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:40,993 INFO  L137                Inliner]: procedures = 493, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3120
[2022-04-18 18:49:40,993 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 18:49:40,994 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 18:49:40,994 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 18:49:40,995 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 18:49:41,000 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,000 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,031 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,031 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,130 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,152 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,164 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,184 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 18:49:41,185 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 18:49:41,186 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 18:49:41,186 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 18:49:41,186 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ...
[2022-04-18 18:49:41,191 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:49:41,198 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 18:49:41,225 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-04-18 18:49:41,230 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-04-18 18:49:41,266 INFO  L130     BoogieDeclarations]: Found specification of procedure Stealer
[2022-04-18 18:49:41,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure Stealer
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-04-18 18:49:41,267 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 18:49:41,268 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-04-18 18:49:41,268 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 18:49:41,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 18:49:41,268 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-04-18 18:49:41,268 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 18:49:41,268 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-04-18 18:49:41,268 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-04-18 18:49:41,270 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-04-18 18:49:41,648 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 18:49:41,649 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 18:49:44,993 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 18:49:45,999 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 18:49:46,000 INFO  L299             CfgBuilder]: Removed 11 assume(true) statements.
[2022-04-18 18:49:46,004 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:49:46 BoogieIcfgContainer
[2022-04-18 18:49:46,004 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 18:49:46,006 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 18:49:46,006 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 18:49:46,008 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 18:49:46,008 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:49:40" (1/3) ...
[2022-04-18 18:49:46,008 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222d7d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:49:46, skipping insertion in model container
[2022-04-18 18:49:46,009 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (2/3) ...
[2022-04-18 18:49:46,009 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222d7d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:49:46, skipping insertion in model container
[2022-04-18 18:49:46,009 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:49:46" (3/3) ...
[2022-04-18 18:49:46,010 INFO  L111   eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i
[2022-04-18 18:49:46,013 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 18:49:46,014 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 18:49:46,014 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations.
[2022-04-18 18:49:46,014 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 18:49:46,164 INFO  L135    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-04-18 18:49:46,192 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:49:46,196 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP
[2022-04-18 18:49:46,196 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 279 error locations.
[2022-04-18 18:49:46,220 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:49:46,229 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2303 places, 2344 transitions, 4696 flow
[2022-04-18 18:49:46,231 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 2303 places, 2344 transitions, 4696 flow
[2022-04-18 18:49:46,232 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 2303 places, 2344 transitions, 4696 flow
[2022-04-18 18:49:47,388 INFO  L129       PetriNetUnfolder]: 81/4348 cut-off events.
[2022-04-18 18:49:47,388 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-04-18 18:49:47,443 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 4354 conditions, 4348 events. 81/4348 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 22654 event pairs, 0 based on Foata normal form. 0/3782 useless extension candidates. Maximal degree in co-relation 2219. Up to 4 conditions per place. 
[2022-04-18 18:49:47,621 INFO  L116        LiptonReduction]: Number of co-enabled transitions 844200
[2022-04-18 18:49:54,602 WARN  L232               SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 137 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:50:06,447 WARN  L232               SmtUtils]: Spent 8.77s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:50:22,580 WARN  L232               SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 139 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:50:38,078 WARN  L232               SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 143 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:51:01,373 WARN  L232               SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 140 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:51:16,666 WARN  L232               SmtUtils]: Spent 11.80s on a formula simplification. DAG size of input: 144 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:51:22,652 WARN  L232               SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:51:39,530 WARN  L232               SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 134 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:51:55,221 WARN  L232               SmtUtils]: Spent 11.05s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:52:02,154 WARN  L232               SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:52:41,398 WARN  L232               SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 138 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:52:55,881 WARN  L232               SmtUtils]: Spent 10.87s on a formula simplification. DAG size of input: 141 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:53:02,891 WARN  L232               SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:53:17,262 WARN  L232               SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 136 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:53:22,903 WARN  L232               SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:53:37,420 WARN  L232               SmtUtils]: Spent 14.51s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:53:43,895 WARN  L232               SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:53:57,956 WARN  L232               SmtUtils]: Spent 9.21s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:54:14,012 WARN  L232               SmtUtils]: Spent 11.78s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:54:19,734 WARN  L232               SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:54:41,902 WARN  L232               SmtUtils]: Spent 12.96s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:54:54,993 WARN  L232               SmtUtils]: Spent 10.08s on a formula simplification. DAG size of input: 138 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:55:00,772 WARN  L232               SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:55:22,777 WARN  L232               SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 137 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:55:38,285 WARN  L232               SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 140 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:55:44,808 WARN  L232               SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:56:31,110 WARN  L232               SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 137 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:56:36,586 WARN  L232               SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:56:48,634 WARN  L232               SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 144 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:56:54,407 WARN  L232               SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:57:13,184 WARN  L232               SmtUtils]: Spent 11.03s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:57:28,212 WARN  L232               SmtUtils]: Spent 10.51s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:57:42,059 WARN  L232               SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 137 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:57:55,242 WARN  L232               SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:58:11,314 WARN  L232               SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 134 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:58:25,905 WARN  L232               SmtUtils]: Spent 10.39s on a formula simplification. DAG size of input: 140 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:59:01,420 WARN  L232               SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:59:14,781 WARN  L232               SmtUtils]: Spent 9.63s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:59:21,444 WARN  L232               SmtUtils]: Spent 6.66s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 18:59:45,476 WARN  L232               SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 138 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:00:02,194 WARN  L232               SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 142 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:00:53,443 WARN  L232               SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:01:10,620 WARN  L232               SmtUtils]: Spent 13.82s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:01:17,628 WARN  L232               SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
Killed by 15