./Ultimate.py --spec /mnt/goblint-svcomp/goblint-bench/bench/concrat/properties/no-data-race.prp --file /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race-4.i --full-output --architecture 32bit


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


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data -tc /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race-4.i -s /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 525cfd05910881bcbfefff0fae8bf984dee2be4a30166962bfce2cca3f6f275c
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-27 12:49:00,582 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-27 12:49:00,584 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-27 12:49:00,650 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-27 12:49:00,650 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-27 12:49:00,652 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-27 12:49:00,654 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-27 12:49:00,656 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-27 12:49:00,657 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-27 12:49:00,661 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-27 12:49:00,662 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-27 12:49:00,663 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-27 12:49:00,663 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-27 12:49:00,665 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-27 12:49:00,666 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-27 12:49:00,667 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-27 12:49:00,668 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-27 12:49:00,681 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-27 12:49:00,683 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-27 12:49:00,686 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-27 12:49:00,687 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-27 12:49:00,688 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-27 12:49:00,689 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-27 12:49:00,690 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-27 12:49:00,695 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-27 12:49:00,695 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-27 12:49:00,696 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-27 12:49:00,697 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-27 12:49:00,697 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-27 12:49:00,698 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-27 12:49:00,698 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-27 12:49:00,699 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-27 12:49:00,701 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-27 12:49:00,701 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-27 12:49:00,702 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-27 12:49:00,702 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-27 12:49:00,702 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-27 12:49:00,702 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-27 12:49:00,703 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-27 12:49:00,704 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-27 12:49:00,713 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-27 12:49:00,714 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-27 12:49:00,754 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-27 12:49:00,755 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-27 12:49:00,755 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-27 12:49:00,755 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-27 12:49:00,756 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-27 12:49:00,756 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-27 12:49:00,757 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-27 12:49:00,757 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-27 12:49:00,757 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-27 12:49:00,757 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-27 12:49:00,758 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-27 12:49:00,758 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-27 12:49:00,758 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-27 12:49:00,758 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-27 12:49:00,758 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-27 12:49:00,759 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-27 12:49:00,760 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-27 12:49:00,760 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-27 12:49:00,760 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-27 12:49:00,760 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-27 12:49:00,760 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:49:00,760 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-27 12:49:00,761 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-27 12:49:00,761 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-27 12:49:00,761 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-27 12:49:00,761 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-27 12:49:00,762 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-27 12:49:00,762 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-27 12:49:00,762 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-27 12:49:00,762 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-27 12:49:00,762 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-27 12:49:00,763 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-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 -> /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-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 -> Automizer
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 -> 525cfd05910881bcbfefff0fae8bf984dee2be4a30166962bfce2cca3f6f275c
[2023-10-27 12:49:01,124 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-27 12:49:01,147 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-27 12:49:01,149 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-27 12:49:01,150 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-27 12:49:01,150 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-27 12:49:01,151 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race-4.i
[2023-10-27 12:49:02,854 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-27 12:49:03,228 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-27 12:49:03,229 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race-4.i
[2023-10-27 12:49:03,242 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/52013b947/2fcbb69563f84cd2834ff316609ea10c/FLAG86305a93e
[2023-10-27 12:49:03,257 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/52013b947/2fcbb69563f84cd2834ff316609ea10c
[2023-10-27 12:49:03,259 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-27 12:49:03,260 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-27 12:49:03,269 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-27 12:49:03,270 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-27 12:49:03,276 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-27 12:49:03,277 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:49:03" (1/1) ...
[2023-10-27 12:49:03,282 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d1d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:03, skipping insertion in model container
[2023-10-27 12:49:03,282 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:49:03" (1/1) ...
[2023-10-27 12:49:03,302 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-27 12:49:03,367 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-27 12:49:03,840 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:49:03,844 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:49:03,877 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-27 12:49:03,951 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:49:03,955 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:49:04,011 INFO  L208         MainTranslator]: Completed translation
[2023-10-27 12:49:04,011 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04 WrapperNode
[2023-10-27 12:49:04,011 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-27 12:49:04,013 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-27 12:49:04,013 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-27 12:49:04,013 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-27 12:49:04,018 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,030 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,072 INFO  L138                Inliner]: procedures = 159, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111
[2023-10-27 12:49:04,080 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-27 12:49:04,080 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-27 12:49:04,090 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-27 12:49:04,091 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-27 12:49:04,098 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,099 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,102 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,121 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,130 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,142 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,153 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,159 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,161 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-27 12:49:04,161 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-27 12:49:04,166 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-27 12:49:04,167 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-27 12:49:04,167 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (1/1) ...
[2023-10-27 12:49:04,178 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:49:04,188 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:49:04,205 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-10-27 12:49:04,232 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-10-27 12:49:04,239 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-27 12:49:04,239 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-27 12:49:04,240 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-27 12:49:04,242 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-27 12:49:04,242 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-27 12:49:04,242 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-27 12:49:04,242 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2023-10-27 12:49:04,243 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-27 12:49:04,243 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-27 12:49:04,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-27 12:49:04,243 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-27 12:49:04,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-27 12:49:04,245 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-27 12:49:04,444 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-27 12:49:04,454 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-27 12:49:04,949 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-27 12:49:04,956 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-27 12:49:04,961 INFO  L300             CfgBuilder]: Removed 4 assume(true) statements.
[2023-10-27 12:49:04,965 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:49:04 BoogieIcfgContainer
[2023-10-27 12:49:04,965 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-27 12:49:04,974 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-27 12:49:04,974 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-27 12:49:04,990 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-27 12:49:04,990 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:49:03" (1/3) ...
[2023-10-27 12:49:04,992 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731ffda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:49:04, skipping insertion in model container
[2023-10-27 12:49:04,992 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:49:04" (2/3) ...
[2023-10-27 12:49:04,992 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731ffda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:49:04, skipping insertion in model container
[2023-10-27 12:49:04,992 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:49:04" (3/3) ...
[2023-10-27 12:49:04,993 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race-4.i
[2023-10-27 12:49:04,999 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-27 12:49:05,006 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-27 12:49:05,021 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2023-10-27 12:49:05,021 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-27 12:49:05,119 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:05,180 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 170 places, 175 transitions, 355 flow
[2023-10-27 12:49:05,343 INFO  L130       PetriNetUnfolder]: 13/222 cut-off events.
[2023-10-27 12:49:05,345 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:05,353 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 227 conditions, 222 events. 13/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 426 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. 
[2023-10-27 12:49:05,354 INFO  L82        GeneralOperation]: Start removeDead. Operand has 170 places, 175 transitions, 355 flow
[2023-10-27 12:49:05,373 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 170 places, 175 transitions, 355 flow
[2023-10-27 12:49:05,376 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:05,409 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 175 transitions, 355 flow
[2023-10-27 12:49:05,415 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 175 transitions, 355 flow
[2023-10-27 12:49:05,416 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 170 places, 175 transitions, 355 flow
[2023-10-27 12:49:05,493 INFO  L130       PetriNetUnfolder]: 13/222 cut-off events.
[2023-10-27 12:49:05,493 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:05,494 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 227 conditions, 222 events. 13/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 426 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. 
[2023-10-27 12:49:05,497 INFO  L119        LiptonReduction]: Number of co-enabled transitions 6864
[2023-10-27 12:49:10,881 INFO  L134        LiptonReduction]: Checked pairs total: 35353
[2023-10-27 12:49:10,882 INFO  L136        LiptonReduction]: Total number of compositions: 114
[2023-10-27 12:49:10,902 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:10,921 INFO  L357      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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@727cb258, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:10,921 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 18 error locations.
[2023-10-27 12:49:10,925 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:49:10,925 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:10,925 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:10,926 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:49:10,927 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] ===
[2023-10-27 12:49:10,931 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:10,931 INFO  L85        PathProgramCache]: Analyzing trace with hash 18034998, now seen corresponding path program 1 times
[2023-10-27 12:49:10,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:10,953 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147051805]
[2023-10-27 12:49:10,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:10,954 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:11,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:11,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:11,275 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:11,276 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147051805]
[2023-10-27 12:49:11,276 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147051805] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:11,276 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:11,276 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:11,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072020976]
[2023-10-27 12:49:11,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:11,284 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:11,297 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:11,327 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:11,328 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:11,372 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 155 out of 289
[2023-10-27 12:49:11,376 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 145 flow. Second operand  has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:11,377 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:11,389 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 289
[2023-10-27 12:49:11,390 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:11,674 INFO  L130       PetriNetUnfolder]: 386/1153 cut-off events.
[2023-10-27 12:49:11,675 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:11,694 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1917 conditions, 1153 events. 386/1153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7520 event pairs, 86 based on Foata normal form. 25/1051 useless extension candidates. Maximal degree in co-relation 1864. Up to 434 conditions per place. 
[2023-10-27 12:49:11,701 INFO  L137   encePairwiseOnDemand]: 273/289 looper letters, 54 selfloop transitions, 8 changer transitions 0/91 dead transitions.
[2023-10-27 12:49:11,701 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 311 flow
[2023-10-27 12:49:11,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:11,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:11,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions.
[2023-10-27 12:49:11,716 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.621683967704729
[2023-10-27 12:49:11,716 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 539 transitions.
[2023-10-27 12:49:11,727 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions.
[2023-10-27 12:49:11,731 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:11,733 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions.
[2023-10-27 12:49:11,737 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:11,742 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:11,750 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:11,751 INFO  L175             Difference]: Start difference. First operand has 67 places, 70 transitions, 145 flow. Second operand 3 states and 539 transitions.
[2023-10-27 12:49:11,752 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 311 flow
[2023-10-27 12:49:11,754 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 311 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:49:11,757 INFO  L231             Difference]: Finished difference. Result has 68 places, 70 transitions, 193 flow
[2023-10-27 12:49:11,770 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=68, PETRI_TRANSITIONS=70}
[2023-10-27 12:49:11,774 INFO  L288   CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places.
[2023-10-27 12:49:11,775 INFO  L495      AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 193 flow
[2023-10-27 12:49:11,775 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:11,775 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:11,775 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-27 12:49:11,776 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-27 12:49:11,776 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] ===
[2023-10-27 12:49:11,778 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:11,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 168368959, now seen corresponding path program 1 times
[2023-10-27 12:49:11,780 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:11,781 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536580031]
[2023-10-27 12:49:11,781 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:11,781 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:11,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:11,887 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:49:11,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:11,984 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:49:11,984 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:49:11,988 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining)
[2023-10-27 12:49:12,002 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining)
[2023-10-27 12:49:12,003 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining)
[2023-10-27 12:49:12,004 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining)
[2023-10-27 12:49:12,004 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining)
[2023-10-27 12:49:12,004 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining)
[2023-10-27 12:49:12,005 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining)
[2023-10-27 12:49:12,005 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining)
[2023-10-27 12:49:12,005 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining)
[2023-10-27 12:49:12,005 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining)
[2023-10-27 12:49:12,006 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining)
[2023-10-27 12:49:12,006 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining)
[2023-10-27 12:49:12,007 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining)
[2023-10-27 12:49:12,007 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining)
[2023-10-27 12:49:12,007 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining)
[2023-10-27 12:49:12,007 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining)
[2023-10-27 12:49:12,008 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining)
[2023-10-27 12:49:12,010 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining)
[2023-10-27 12:49:12,010 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-27 12:49:12,011 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-27 12:49:12,014 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:49:12,014 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-27 12:49:12,061 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:12,081 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 223 places, 228 transitions, 468 flow
[2023-10-27 12:49:12,259 INFO  L130       PetriNetUnfolder]: 20/340 cut-off events.
[2023-10-27 12:49:12,259 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:49:12,260 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 350 conditions, 340 events. 20/340 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 828 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 223. Up to 6 conditions per place. 
[2023-10-27 12:49:12,260 INFO  L82        GeneralOperation]: Start removeDead. Operand has 223 places, 228 transitions, 468 flow
[2023-10-27 12:49:12,262 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 223 places, 228 transitions, 468 flow
[2023-10-27 12:49:12,262 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:12,262 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 228 transitions, 468 flow
[2023-10-27 12:49:12,263 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 228 transitions, 468 flow
[2023-10-27 12:49:12,263 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 223 places, 228 transitions, 468 flow
[2023-10-27 12:49:12,315 INFO  L130       PetriNetUnfolder]: 20/340 cut-off events.
[2023-10-27 12:49:12,315 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:49:12,316 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 350 conditions, 340 events. 20/340 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 828 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 223. Up to 6 conditions per place. 
[2023-10-27 12:49:12,337 INFO  L119        LiptonReduction]: Number of co-enabled transitions 19240
[2023-10-27 12:49:18,136 INFO  L134        LiptonReduction]: Checked pairs total: 124020
[2023-10-27 12:49:18,136 INFO  L136        LiptonReduction]: Total number of compositions: 130
[2023-10-27 12:49:18,138 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:18,138 INFO  L357      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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@727cb258, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:18,138 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 24 error locations.
[2023-10-27 12:49:18,140 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:49:18,140 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:18,140 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:18,140 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:49:18,140 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:18,144 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:18,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 30686936, now seen corresponding path program 1 times
[2023-10-27 12:49:18,144 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:18,144 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144451470]
[2023-10-27 12:49:18,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:18,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:18,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:18,223 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:18,224 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:18,224 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144451470]
[2023-10-27 12:49:18,227 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144451470] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:18,227 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:18,228 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:18,228 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116888910]
[2023-10-27 12:49:18,228 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:18,228 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:18,229 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:18,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:18,230 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:18,280 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 198 out of 358
[2023-10-27 12:49:18,281 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 108 transitions, 228 flow. Second operand  has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:18,281 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:18,281 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 358
[2023-10-27 12:49:18,281 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:23,343 INFO  L130       PetriNetUnfolder]: 20763/39835 cut-off events.
[2023-10-27 12:49:23,345 INFO  L131       PetriNetUnfolder]: For 58/58 co-relation queries the response was YES.
[2023-10-27 12:49:23,447 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 71346 conditions, 39835 events. 20763/39835 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 1075. Compared 377716 event pairs, 6662 based on Foata normal form. 1135/36664 useless extension candidates. Maximal degree in co-relation 42900. Up to 17195 conditions per place. 
[2023-10-27 12:49:23,790 INFO  L137   encePairwiseOnDemand]: 331/358 looper letters, 98 selfloop transitions, 16 changer transitions 0/156 dead transitions.
[2023-10-27 12:49:23,805 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 156 transitions, 557 flow
[2023-10-27 12:49:23,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:23,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:23,807 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions.
[2023-10-27 12:49:23,807 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6741154562383612
[2023-10-27 12:49:23,807 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 724 transitions.
[2023-10-27 12:49:23,807 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions.
[2023-10-27 12:49:23,808 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:23,808 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions.
[2023-10-27 12:49:23,809 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:23,811 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:23,812 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:23,812 INFO  L175             Difference]: Start difference. First operand has 105 places, 108 transitions, 228 flow. Second operand 3 states and 724 transitions.
[2023-10-27 12:49:23,812 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 156 transitions, 557 flow
[2023-10-27 12:49:23,816 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 156 transitions, 555 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-10-27 12:49:23,818 INFO  L231             Difference]: Finished difference. Result has 108 places, 119 transitions, 356 flow
[2023-10-27 12:49:23,818 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=108, PETRI_TRANSITIONS=119}
[2023-10-27 12:49:23,819 INFO  L288   CegarLoopForPetriNet]: 105 programPoint places, 3 predicate places.
[2023-10-27 12:49:23,819 INFO  L495      AbstractCegarLoop]: Abstraction has has 108 places, 119 transitions, 356 flow
[2023-10-27 12:49:23,820 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:23,820 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:23,820 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:49:23,820 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-27 12:49:23,820 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:23,821 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:23,821 INFO  L85        PathProgramCache]: Analyzing trace with hash -1961643088, now seen corresponding path program 1 times
[2023-10-27 12:49:23,821 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:23,822 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130140580]
[2023-10-27 12:49:23,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:23,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:23,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:23,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:23,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:23,894 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130140580]
[2023-10-27 12:49:23,894 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130140580] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:23,894 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:23,895 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:23,896 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416368758]
[2023-10-27 12:49:23,896 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:23,896 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:23,897 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:23,897 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:23,905 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:23,920 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 212 out of 358
[2023-10-27 12:49:23,921 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 119 transitions, 356 flow. Second operand  has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:23,921 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:23,921 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 358
[2023-10-27 12:49:23,922 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:26,839 INFO  L130       PetriNetUnfolder]: 17664/35834 cut-off events.
[2023-10-27 12:49:26,840 INFO  L131       PetriNetUnfolder]: For 5510/5553 co-relation queries the response was YES.
[2023-10-27 12:49:26,958 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 69762 conditions, 35834 events. 17664/35834 cut-off events. For 5510/5553 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 359465 event pairs, 11485 based on Foata normal form. 0/31495 useless extension candidates. Maximal degree in co-relation 27357. Up to 24058 conditions per place. 
[2023-10-27 12:49:27,200 INFO  L137   encePairwiseOnDemand]: 353/358 looper letters, 84 selfloop transitions, 4 changer transitions 0/156 dead transitions.
[2023-10-27 12:49:27,201 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 156 transitions, 630 flow
[2023-10-27 12:49:27,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:27,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:27,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions.
[2023-10-27 12:49:27,203 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6675977653631285
[2023-10-27 12:49:27,203 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 717 transitions.
[2023-10-27 12:49:27,203 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions.
[2023-10-27 12:49:27,204 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:27,204 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions.
[2023-10-27 12:49:27,205 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:27,207 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:27,208 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:27,208 INFO  L175             Difference]: Start difference. First operand has 108 places, 119 transitions, 356 flow. Second operand 3 states and 717 transitions.
[2023-10-27 12:49:27,208 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 156 transitions, 630 flow
[2023-10-27 12:49:27,251 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 156 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:49:27,266 INFO  L231             Difference]: Finished difference. Result has 109 places, 122 transitions, 350 flow
[2023-10-27 12:49:27,267 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=109, PETRI_TRANSITIONS=122}
[2023-10-27 12:49:27,269 INFO  L288   CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places.
[2023-10-27 12:49:27,269 INFO  L495      AbstractCegarLoop]: Abstraction has has 109 places, 122 transitions, 350 flow
[2023-10-27 12:49:27,270 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:27,270 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:27,270 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:49:27,270 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-27 12:49:27,270 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:27,270 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:27,271 INFO  L85        PathProgramCache]: Analyzing trace with hash 247224704, now seen corresponding path program 1 times
[2023-10-27 12:49:27,271 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:27,271 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307299901]
[2023-10-27 12:49:27,271 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:27,271 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:27,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:27,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:27,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:27,327 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307299901]
[2023-10-27 12:49:27,327 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307299901] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:27,327 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:27,327 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:27,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774261500]
[2023-10-27 12:49:27,328 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:27,328 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:27,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:27,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:27,329 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:27,414 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 206 out of 358
[2023-10-27 12:49:27,415 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 122 transitions, 350 flow. Second operand  has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:27,415 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:27,416 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 358
[2023-10-27 12:49:27,416 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:28,857 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([883] L699-1-->L700-1: Formula: (= |v_#race~threads_alive~0_35| 0)  InVars {}  OutVars{threadThread1of2ForFork0_#t~nondet8=|v_threadThread1of2ForFork0_#t~nondet8_7|, #race~threads_alive~0=|v_#race~threads_alive~0_35|}  AuxVars[]  AssignedVars[threadThread1of2ForFork0_#t~nondet8, #race~threads_alive~0][105], [threadThread2of2ForFork0InUse, 132#L700-1true, 26#L687-2true, Black: 226#true, 50#L721-4true, Black: 234#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet19#1|), threadThread1of2ForFork0InUse, 237#true, 232#true])
[2023-10-27 12:49:28,858 INFO  L383   tUnfolder$Statistics]: this new event has 38 ancestors and is not cut-off event
[2023-10-27 12:49:28,858 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is not cut-off event
[2023-10-27 12:49:28,858 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is not cut-off event
[2023-10-27 12:49:28,858 INFO  L386   tUnfolder$Statistics]:   existing Event has 43 ancestors and is not cut-off event
[2023-10-27 12:49:30,992 INFO  L130       PetriNetUnfolder]: 20113/38893 cut-off events.
[2023-10-27 12:49:30,992 INFO  L131       PetriNetUnfolder]: For 6303/8127 co-relation queries the response was YES.
[2023-10-27 12:49:31,048 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 79902 conditions, 38893 events. 20113/38893 cut-off events. For 6303/8127 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 374072 event pairs, 12145 based on Foata normal form. 701/35164 useless extension candidates. Maximal degree in co-relation 52695. Up to 28307 conditions per place. 
[2023-10-27 12:49:31,302 INFO  L137   encePairwiseOnDemand]: 349/358 looper letters, 84 selfloop transitions, 15 changer transitions 0/160 dead transitions.
[2023-10-27 12:49:31,310 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 160 transitions, 658 flow
[2023-10-27 12:49:31,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:31,311 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:31,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions.
[2023-10-27 12:49:31,313 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6517690875232774
[2023-10-27 12:49:31,313 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 700 transitions.
[2023-10-27 12:49:31,313 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 700 transitions.
[2023-10-27 12:49:31,314 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:31,314 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 700 transitions.
[2023-10-27 12:49:31,315 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:31,317 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:31,317 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:31,317 INFO  L175             Difference]: Start difference. First operand has 109 places, 122 transitions, 350 flow. Second operand 3 states and 700 transitions.
[2023-10-27 12:49:31,318 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 160 transitions, 658 flow
[2023-10-27 12:49:31,348 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 160 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-27 12:49:31,352 INFO  L231             Difference]: Finished difference. Result has 111 places, 135 transitions, 469 flow
[2023-10-27 12:49:31,352 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=111, PETRI_TRANSITIONS=135}
[2023-10-27 12:49:31,366 INFO  L288   CegarLoopForPetriNet]: 105 programPoint places, 6 predicate places.
[2023-10-27 12:49:31,367 INFO  L495      AbstractCegarLoop]: Abstraction has has 111 places, 135 transitions, 469 flow
[2023-10-27 12:49:31,367 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:31,367 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:31,367 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-27 12:49:31,368 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-27 12:49:31,368 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:31,369 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:31,369 INFO  L85        PathProgramCache]: Analyzing trace with hash -299999539, now seen corresponding path program 1 times
[2023-10-27 12:49:31,369 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:31,371 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885198885]
[2023-10-27 12:49:31,371 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:31,372 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:31,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:31,412 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:49:31,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:31,450 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:49:31,450 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:49:31,450 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining)
[2023-10-27 12:49:31,450 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining)
[2023-10-27 12:49:31,450 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining)
[2023-10-27 12:49:31,451 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining)
[2023-10-27 12:49:31,451 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining)
[2023-10-27 12:49:31,451 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining)
[2023-10-27 12:49:31,451 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining)
[2023-10-27 12:49:31,451 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining)
[2023-10-27 12:49:31,452 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining)
[2023-10-27 12:49:31,452 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining)
[2023-10-27 12:49:31,453 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining)
[2023-10-27 12:49:31,453 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining)
[2023-10-27 12:49:31,453 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining)
[2023-10-27 12:49:31,453 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining)
[2023-10-27 12:49:31,453 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining)
[2023-10-27 12:49:31,453 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining)
[2023-10-27 12:49:31,454 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining)
[2023-10-27 12:49:31,456 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining)
[2023-10-27 12:49:31,456 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-27 12:49:31,456 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-27 12:49:31,457 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:49:31,457 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-27 12:49:31,505 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:31,507 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 276 places, 281 transitions, 583 flow
[2023-10-27 12:49:31,573 INFO  L130       PetriNetUnfolder]: 27/458 cut-off events.
[2023-10-27 12:49:31,573 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:49:31,576 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 474 conditions, 458 events. 27/458 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1243 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 344. Up to 8 conditions per place. 
[2023-10-27 12:49:31,576 INFO  L82        GeneralOperation]: Start removeDead. Operand has 276 places, 281 transitions, 583 flow
[2023-10-27 12:49:31,595 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 276 places, 281 transitions, 583 flow
[2023-10-27 12:49:31,595 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:31,595 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 281 transitions, 583 flow
[2023-10-27 12:49:31,596 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 281 transitions, 583 flow
[2023-10-27 12:49:31,596 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 276 places, 281 transitions, 583 flow
[2023-10-27 12:49:31,697 INFO  L130       PetriNetUnfolder]: 27/458 cut-off events.
[2023-10-27 12:49:31,698 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:49:31,700 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 474 conditions, 458 events. 27/458 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1243 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 344. Up to 8 conditions per place. 
[2023-10-27 12:49:31,712 INFO  L119        LiptonReduction]: Number of co-enabled transitions 37128
[2023-10-27 12:49:36,428 INFO  L134        LiptonReduction]: Checked pairs total: 225165
[2023-10-27 12:49:36,429 INFO  L136        LiptonReduction]: Total number of compositions: 148
[2023-10-27 12:49:36,430 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:36,430 INFO  L357      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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@727cb258, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:36,431 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 30 error locations.
[2023-10-27 12:49:36,432 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:49:36,432 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:36,432 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:36,432 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:49:36,432 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2023-10-27 12:49:36,432 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:36,432 INFO  L85        PathProgramCache]: Analyzing trace with hash 45522552, now seen corresponding path program 1 times
[2023-10-27 12:49:36,432 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:36,432 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648173462]
[2023-10-27 12:49:36,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:36,433 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:36,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:36,486 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:36,486 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:36,487 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648173462]
[2023-10-27 12:49:36,487 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648173462] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:36,487 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:36,487 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:36,487 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100084416]
[2023-10-27 12:49:36,487 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:36,490 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:36,490 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:36,490 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:36,491 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:36,552 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 241 out of 429
[2023-10-27 12:49:36,553 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 144 transitions, 309 flow. Second operand  has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:36,553 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:36,553 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 429
[2023-10-27 12:49:36,553 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
