./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-2.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-2.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 96974195531614955ac9a472115973a9f33b45b5358faf0f5c80417fe6149cfd
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-27 12:47:55,174 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-27 12:47:55,179 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-27 12:47:55,235 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-27 12:47:55,235 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-27 12:47:55,237 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-27 12:47:55,239 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-27 12:47:55,240 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-27 12:47:55,242 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-27 12:47:55,245 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-27 12:47:55,246 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-27 12:47:55,262 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-27 12:47:55,263 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-27 12:47:55,264 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-27 12:47:55,265 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-27 12:47:55,267 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-27 12:47:55,268 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-27 12:47:55,268 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-27 12:47:55,269 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-27 12:47:55,273 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-27 12:47:55,274 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-27 12:47:55,275 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-27 12:47:55,276 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-27 12:47:55,276 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-27 12:47:55,282 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-27 12:47:55,282 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-27 12:47:55,282 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-27 12:47:55,283 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-27 12:47:55,283 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-27 12:47:55,285 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-27 12:47:55,285 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-27 12:47:55,285 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-27 12:47:55,287 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-27 12:47:55,287 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-27 12:47:55,307 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-27 12:47:55,307 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-27 12:47:55,308 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-27 12:47:55,308 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-27 12:47:55,308 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-27 12:47:55,309 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-27 12:47:55,310 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-27 12:47:55,310 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 12:47:55,332 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-27 12:47:55,345 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-27 12:47:55,346 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-27 12:47:55,346 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-27 12:47:55,347 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-27 12:47:55,347 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-27 12:47:55,348 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-27 12:47:55,348 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-27 12:47:55,348 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-27 12:47:55,348 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-27 12:47:55,349 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-27 12:47:55,349 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-27 12:47:55,349 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-27 12:47:55,349 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-27 12:47:55,349 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-27 12:47:55,350 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-27 12:47:55,350 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-27 12:47:55,350 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-27 12:47:55,350 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-27 12:47:55,350 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-27 12:47:55,350 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-27 12:47:55,351 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-27 12:47:55,351 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-27 12:47:55,351 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-27 12:47:55,351 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-27 12:47:55,351 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-27 12:47:55,351 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:47:55,352 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-27 12:47:55,352 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-27 12:47:55,352 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-27 12:47:55,352 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-27 12:47:55,352 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-27 12:47:55,353 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-27 12:47:55,353 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-27 12:47:55,353 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-27 12:47:55,353 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-27 12:47:55,354 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-27 12:47:55,354 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 -> 96974195531614955ac9a472115973a9f33b45b5358faf0f5c80417fe6149cfd
[2023-10-27 12:47:55,699 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-27 12:47:55,732 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-27 12:47:55,734 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-27 12:47:55,735 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-27 12:47:55,735 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-27 12:47:55,736 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-2.i
[2023-10-27 12:47:57,404 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-27 12:47:57,748 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-27 12:47:57,755 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-2.i
[2023-10-27 12:47:57,768 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/194f9331e/57a1091bdd85499a81ab3bf301f427d1/FLAG91e16cbe1
[2023-10-27 12:47:57,803 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/194f9331e/57a1091bdd85499a81ab3bf301f427d1
[2023-10-27 12:47:57,805 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-27 12:47:57,818 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-27 12:47:57,820 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-27 12:47:57,821 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-27 12:47:57,823 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-27 12:47:57,824 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:47:57" (1/1) ...
[2023-10-27 12:47:57,825 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21da460f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:57, skipping insertion in model container
[2023-10-27 12:47:57,825 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:47:57" (1/1) ...
[2023-10-27 12:47:57,830 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-27 12:47:57,889 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-27 12:47:58,301 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:47:58,305 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:47:58,336 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-27 12:47:58,408 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:47:58,428 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:47:58,469 INFO  L208         MainTranslator]: Completed translation
[2023-10-27 12:47:58,479 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58 WrapperNode
[2023-10-27 12:47:58,479 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-27 12:47:58,480 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-27 12:47:58,481 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-27 12:47:58,481 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-27 12:47:58,486 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,522 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,550 INFO  L138                Inliner]: procedures = 159, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95
[2023-10-27 12:47:58,551 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-27 12:47:58,554 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-27 12:47:58,554 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-27 12:47:58,555 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-27 12:47:58,563 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,563 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,578 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,578 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,589 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,601 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,602 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,609 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,611 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-27 12:47:58,612 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-27 12:47:58,612 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-27 12:47:58,612 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-27 12:47:58,613 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (1/1) ...
[2023-10-27 12:47:58,617 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:47:58,638 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:47:58,651 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 12:47:58,676 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 12:47:58,682 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-27 12:47:58,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-27 12:47:58,682 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-27 12:47:58,685 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-27 12:47:58,685 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-27 12:47:58,686 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-27 12:47:58,686 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2023-10-27 12:47:58,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-27 12:47:58,686 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-27 12:47:58,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-27 12:47:58,691 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-27 12:47:58,691 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-27 12:47:58,692 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 12:47:58,890 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-27 12:47:58,899 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-27 12:47:59,312 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-27 12:47:59,332 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-27 12:47:59,334 INFO  L300             CfgBuilder]: Removed 3 assume(true) statements.
[2023-10-27 12:47:59,336 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:47:59 BoogieIcfgContainer
[2023-10-27 12:47:59,337 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-27 12:47:59,348 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-27 12:47:59,348 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-27 12:47:59,351 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-27 12:47:59,351 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:47:57" (1/3) ...
[2023-10-27 12:47:59,356 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222b612b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:47:59, skipping insertion in model container
[2023-10-27 12:47:59,357 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:47:58" (2/3) ...
[2023-10-27 12:47:59,357 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222b612b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:47:59, skipping insertion in model container
[2023-10-27 12:47:59,359 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:47:59" (3/3) ...
[2023-10-27 12:47:59,360 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-2.i
[2023-10-27 12:47:59,381 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-27 12:47:59,390 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-27 12:47:59,398 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations.
[2023-10-27 12:47:59,398 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-27 12:47:59,526 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:47:59,604 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 145 places, 148 transitions, 301 flow
[2023-10-27 12:47:59,750 INFO  L130       PetriNetUnfolder]: 11/186 cut-off events.
[2023-10-27 12:47:59,750 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:47:59,755 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 191 conditions, 186 events. 11/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 98. Up to 4 conditions per place. 
[2023-10-27 12:47:59,755 INFO  L82        GeneralOperation]: Start removeDead. Operand has 145 places, 148 transitions, 301 flow
[2023-10-27 12:47:59,765 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 145 places, 148 transitions, 301 flow
[2023-10-27 12:47:59,768 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:47:59,797 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 148 transitions, 301 flow
[2023-10-27 12:47:59,804 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 148 transitions, 301 flow
[2023-10-27 12:47:59,805 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 145 places, 148 transitions, 301 flow
[2023-10-27 12:47:59,876 INFO  L130       PetriNetUnfolder]: 11/186 cut-off events.
[2023-10-27 12:47:59,876 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:47:59,877 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 191 conditions, 186 events. 11/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 98. Up to 4 conditions per place. 
[2023-10-27 12:47:59,888 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4788
[2023-10-27 12:48:04,228 INFO  L134        LiptonReduction]: Checked pairs total: 21430
[2023-10-27 12:48:04,228 INFO  L136        LiptonReduction]: Total number of compositions: 103
[2023-10-27 12:48:04,239 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:48:04,244 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;@e3daa2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:48:04,244 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2023-10-27 12:48:04,246 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:48:04,247 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:04,247 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:04,247 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:48:04,247 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] ===
[2023-10-27 12:48:04,251 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:04,258 INFO  L85        PathProgramCache]: Analyzing trace with hash 15451983, now seen corresponding path program 1 times
[2023-10-27 12:48:04,286 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:04,287 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339365301]
[2023-10-27 12:48:04,287 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:04,287 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:04,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:04,624 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 12:48:04,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:04,638 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339365301]
[2023-10-27 12:48:04,639 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339365301] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:04,639 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:04,639 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:04,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808268286]
[2023-10-27 12:48:04,641 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:04,646 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:04,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:04,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:04,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:04,738 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 129 out of 251
[2023-10-27 12:48:04,742 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 113 flow. Second operand  has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 12:48:04,742 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:04,742 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 251
[2023-10-27 12:48:04,743 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:48:04,980 INFO  L130       PetriNetUnfolder]: 315/859 cut-off events.
[2023-10-27 12:48:04,980 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:04,984 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 859 events. 315/859 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4864 event pairs, 84 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 1450. Up to 365 conditions per place. 
[2023-10-27 12:48:04,999 INFO  L137   encePairwiseOnDemand]: 236/251 looper letters, 49 selfloop transitions, 8 changer transitions 0/73 dead transitions.
[2023-10-27 12:48:04,999 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 73 transitions, 265 flow
[2023-10-27 12:48:05,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:48:05,002 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:48:05,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions.
[2023-10-27 12:48:05,022 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.602921646746348
[2023-10-27 12:48:05,022 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 454 transitions.
[2023-10-27 12:48:05,023 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions.
[2023-10-27 12:48:05,025 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:48:05,027 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions.
[2023-10-27 12:48:05,045 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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 12:48:05,051 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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 12:48:05,052 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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 12:48:05,053 INFO  L175             Difference]: Start difference. First operand has 53 places, 54 transitions, 113 flow. Second operand 3 states and 454 transitions.
[2023-10-27 12:48:05,054 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 73 transitions, 265 flow
[2023-10-27 12:48:05,056 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 73 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:48:05,058 INFO  L231             Difference]: Finished difference. Result has 54 places, 55 transitions, 163 flow
[2023-10-27 12:48:05,059 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=55}
[2023-10-27 12:48:05,066 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places.
[2023-10-27 12:48:05,070 INFO  L495      AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 163 flow
[2023-10-27 12:48:05,070 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 12:48:05,070 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:05,071 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-27 12:48:05,071 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-27 12:48:05,072 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 12 more)] ===
[2023-10-27 12:48:05,073 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:05,074 INFO  L85        PathProgramCache]: Analyzing trace with hash 1977729150, now seen corresponding path program 1 times
[2023-10-27 12:48:05,076 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:05,076 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208371267]
[2023-10-27 12:48:05,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:05,077 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:05,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:48:05,172 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:48:05,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:48:05,265 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:48:05,266 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:48:05,270 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining)
[2023-10-27 12:48:05,272 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining)
[2023-10-27 12:48:05,273 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining)
[2023-10-27 12:48:05,273 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining)
[2023-10-27 12:48:05,274 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining)
[2023-10-27 12:48:05,274 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining)
[2023-10-27 12:48:05,274 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining)
[2023-10-27 12:48:05,274 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining)
[2023-10-27 12:48:05,275 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining)
[2023-10-27 12:48:05,275 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining)
[2023-10-27 12:48:05,276 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining)
[2023-10-27 12:48:05,277 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining)
[2023-10-27 12:48:05,277 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining)
[2023-10-27 12:48:05,278 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining)
[2023-10-27 12:48:05,278 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining)
[2023-10-27 12:48:05,278 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-27 12:48:05,278 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-27 12:48:05,282 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:48:05,282 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-27 12:48:05,322 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:48:05,327 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 394 flow
[2023-10-27 12:48:05,393 INFO  L130       PetriNetUnfolder]: 16/285 cut-off events.
[2023-10-27 12:48:05,394 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:48:05,395 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 295 conditions, 285 events. 16/285 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 614 event pairs, 0 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 187. Up to 6 conditions per place. 
[2023-10-27 12:48:05,395 INFO  L82        GeneralOperation]: Start removeDead. Operand has 190 places, 191 transitions, 394 flow
[2023-10-27 12:48:05,397 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 394 flow
[2023-10-27 12:48:05,397 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:48:05,397 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 394 flow
[2023-10-27 12:48:05,397 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 394 flow
[2023-10-27 12:48:05,398 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 394 flow
[2023-10-27 12:48:05,500 INFO  L130       PetriNetUnfolder]: 16/285 cut-off events.
[2023-10-27 12:48:05,503 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:48:05,504 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 295 conditions, 285 events. 16/285 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 614 event pairs, 0 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 187. Up to 6 conditions per place. 
[2023-10-27 12:48:05,509 INFO  L119        LiptonReduction]: Number of co-enabled transitions 13188
[2023-10-27 12:48:09,635 INFO  L134        LiptonReduction]: Checked pairs total: 69913
[2023-10-27 12:48:09,635 INFO  L136        LiptonReduction]: Total number of compositions: 119
[2023-10-27 12:48:09,636 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:48:09,637 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;@e3daa2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:48:09,637 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 20 error locations.
[2023-10-27 12:48:09,639 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:48:09,639 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:09,639 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:09,639 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:48:09,639 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 17 more)] ===
[2023-10-27 12:48:09,639 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:09,639 INFO  L85        PathProgramCache]: Analyzing trace with hash 26315886, now seen corresponding path program 1 times
[2023-10-27 12:48:09,639 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:09,640 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627687407]
[2023-10-27 12:48:09,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:09,640 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:09,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:09,697 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 12:48:09,697 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:09,698 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627687407]
[2023-10-27 12:48:09,698 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627687407] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:09,699 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:09,699 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:09,699 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772846415]
[2023-10-27 12:48:09,699 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:09,699 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:09,702 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:09,702 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:09,702 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:09,755 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 163 out of 310
[2023-10-27 12:48:09,756 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 180 flow. Second operand  has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 12:48:09,756 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:09,756 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 310
[2023-10-27 12:48:09,756 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:48:13,392 INFO  L130       PetriNetUnfolder]: 14028/26452 cut-off events.
[2023-10-27 12:48:13,393 INFO  L131       PetriNetUnfolder]: For 58/58 co-relation queries the response was YES.
[2023-10-27 12:48:13,476 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 48127 conditions, 26452 events. 14028/26452 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 228454 event pairs, 4936 based on Foata normal form. 0/23743 useless extension candidates. Maximal degree in co-relation 29443. Up to 11653 conditions per place. 
[2023-10-27 12:48:13,680 INFO  L137   encePairwiseOnDemand]: 285/310 looper letters, 84 selfloop transitions, 16 changer transitions 0/127 dead transitions.
[2023-10-27 12:48:13,680 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 127 transitions, 471 flow
[2023-10-27 12:48:13,680 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:48:13,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:48:13,682 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions.
[2023-10-27 12:48:13,682 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.646236559139785
[2023-10-27 12:48:13,682 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 601 transitions.
[2023-10-27 12:48:13,682 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions.
[2023-10-27 12:48:13,683 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:48:13,683 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions.
[2023-10-27 12:48:13,684 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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 12:48:13,686 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 12:48:13,702 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 12:48:13,702 INFO  L175             Difference]: Start difference. First operand has 85 places, 84 transitions, 180 flow. Second operand 3 states and 601 transitions.
[2023-10-27 12:48:13,702 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 127 transitions, 471 flow
[2023-10-27 12:48:13,704 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 127 transitions, 469 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-10-27 12:48:13,706 INFO  L231             Difference]: Finished difference. Result has 88 places, 97 transitions, 312 flow
[2023-10-27 12:48:13,706 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=88, PETRI_TRANSITIONS=97}
[2023-10-27 12:48:13,707 INFO  L288   CegarLoopForPetriNet]: 85 programPoint places, 3 predicate places.
[2023-10-27 12:48:13,707 INFO  L495      AbstractCegarLoop]: Abstraction has has 88 places, 97 transitions, 312 flow
[2023-10-27 12:48:13,708 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 12:48:13,708 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:13,708 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:48:13,708 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-27 12:48:13,708 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 17 more)] ===
[2023-10-27 12:48:13,708 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:13,709 INFO  L85        PathProgramCache]: Analyzing trace with hash 586056447, now seen corresponding path program 1 times
[2023-10-27 12:48:13,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:13,709 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388588796]
[2023-10-27 12:48:13,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:13,709 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:13,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:13,787 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 12:48:13,788 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:13,788 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388588796]
[2023-10-27 12:48:13,788 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388588796] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:13,789 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:13,789 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:13,789 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213852627]
[2023-10-27 12:48:13,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:13,789 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:13,790 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:13,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:13,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:13,829 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 171 out of 310
[2023-10-27 12:48:13,830 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 97 transitions, 312 flow. Second operand  has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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 12:48:13,845 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:13,848 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 310
[2023-10-27 12:48:13,848 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:48:16,734 INFO  L130       PetriNetUnfolder]: 11763/22330 cut-off events.
[2023-10-27 12:48:16,735 INFO  L131       PetriNetUnfolder]: For 8226/8810 co-relation queries the response was YES.
[2023-10-27 12:48:16,774 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 49332 conditions, 22330 events. 11763/22330 cut-off events. For 8226/8810 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 194654 event pairs, 6609 based on Foata normal form. 110/19908 useless extension candidates. Maximal degree in co-relation 30549. Up to 15820 conditions per place. 
[2023-10-27 12:48:16,940 INFO  L137   encePairwiseOnDemand]: 300/310 looper letters, 69 selfloop transitions, 16 changer transitions 0/129 dead transitions.
[2023-10-27 12:48:16,940 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 129 transitions, 587 flow
[2023-10-27 12:48:16,941 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:48:16,941 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:48:16,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions.
[2023-10-27 12:48:16,944 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6268817204301075
[2023-10-27 12:48:16,952 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 583 transitions.
[2023-10-27 12:48:16,952 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions.
[2023-10-27 12:48:16,952 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:48:16,953 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions.
[2023-10-27 12:48:16,954 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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 12:48:16,955 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 12:48:16,956 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 12:48:16,956 INFO  L175             Difference]: Start difference. First operand has 88 places, 97 transitions, 312 flow. Second operand 3 states and 583 transitions.
[2023-10-27 12:48:16,956 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 129 transitions, 587 flow
[2023-10-27 12:48:17,006 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 543 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:48:17,008 INFO  L231             Difference]: Finished difference. Result has 90 places, 111 transitions, 426 flow
[2023-10-27 12:48:17,008 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=90, PETRI_TRANSITIONS=111}
[2023-10-27 12:48:17,010 INFO  L288   CegarLoopForPetriNet]: 85 programPoint places, 5 predicate places.
[2023-10-27 12:48:17,010 INFO  L495      AbstractCegarLoop]: Abstraction has has 90 places, 111 transitions, 426 flow
[2023-10-27 12:48:17,011 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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 12:48:17,011 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:17,011 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-27 12:48:17,011 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-27 12:48:17,011 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 17 more)] ===
[2023-10-27 12:48:17,012 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:17,012 INFO  L85        PathProgramCache]: Analyzing trace with hash 396966331, now seen corresponding path program 1 times
[2023-10-27 12:48:17,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:17,012 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503297440]
[2023-10-27 12:48:17,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:17,013 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:17,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:48:17,086 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:48:17,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:48:17,129 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:48:17,129 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:48:17,129 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining)
[2023-10-27 12:48:17,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining)
[2023-10-27 12:48:17,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining)
[2023-10-27 12:48:17,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining)
[2023-10-27 12:48:17,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining)
[2023-10-27 12:48:17,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining)
[2023-10-27 12:48:17,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining)
[2023-10-27 12:48:17,131 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining)
[2023-10-27 12:48:17,131 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining)
[2023-10-27 12:48:17,131 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining)
[2023-10-27 12:48:17,131 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining)
[2023-10-27 12:48:17,131 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining)
[2023-10-27 12:48:17,132 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining)
[2023-10-27 12:48:17,132 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining)
[2023-10-27 12:48:17,135 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining)
[2023-10-27 12:48:17,135 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining)
[2023-10-27 12:48:17,135 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining)
[2023-10-27 12:48:17,137 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining)
[2023-10-27 12:48:17,137 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining)
[2023-10-27 12:48:17,137 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining)
[2023-10-27 12:48:17,137 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-27 12:48:17,138 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-10-27 12:48:17,138 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:48:17,138 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-27 12:48:17,182 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:48:17,185 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 235 places, 234 transitions, 489 flow
[2023-10-27 12:48:17,252 INFO  L130       PetriNetUnfolder]: 21/384 cut-off events.
[2023-10-27 12:48:17,252 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:48:17,254 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 400 conditions, 384 events. 21/384 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 909 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 289. Up to 8 conditions per place. 
[2023-10-27 12:48:17,254 INFO  L82        GeneralOperation]: Start removeDead. Operand has 235 places, 234 transitions, 489 flow
[2023-10-27 12:48:17,256 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 235 places, 234 transitions, 489 flow
[2023-10-27 12:48:17,256 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:48:17,256 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 234 transitions, 489 flow
[2023-10-27 12:48:17,257 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 234 transitions, 489 flow
[2023-10-27 12:48:17,257 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 235 places, 234 transitions, 489 flow
[2023-10-27 12:48:17,316 INFO  L130       PetriNetUnfolder]: 21/384 cut-off events.
[2023-10-27 12:48:17,316 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:48:17,318 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 400 conditions, 384 events. 21/384 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 909 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 289. Up to 8 conditions per place. 
[2023-10-27 12:48:17,346 INFO  L119        LiptonReduction]: Number of co-enabled transitions 25200
[2023-10-27 12:48:21,707 INFO  L134        LiptonReduction]: Checked pairs total: 138488
[2023-10-27 12:48:21,708 INFO  L136        LiptonReduction]: Total number of compositions: 136
[2023-10-27 12:48:21,709 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:48:21,709 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;@e3daa2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:48:21,709 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 25 error locations.
[2023-10-27 12:48:21,711 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:48:21,711 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:21,711 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:21,711 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:48:21,711 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] ===
[2023-10-27 12:48:21,711 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:21,711 INFO  L85        PathProgramCache]: Analyzing trace with hash 39025836, now seen corresponding path program 1 times
[2023-10-27 12:48:21,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:21,711 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472322456]
[2023-10-27 12:48:21,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:21,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:21,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:21,761 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 12:48:21,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:21,762 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472322456]
[2023-10-27 12:48:21,762 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472322456] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:21,762 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:21,762 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:21,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047460429]
[2023-10-27 12:48:21,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:21,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:21,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:21,763 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:21,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:21,826 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 197 out of 370
[2023-10-27 12:48:21,827 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 243 flow. Second operand  has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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 12:48:21,827 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:21,827 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 370
[2023-10-27 12:48:21,827 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
