./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.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.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 3db316c172ae12420ec5db09460222d0c37d55b7895de600baa1f62acb4e9cb6
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-27 12:50:05,364 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-27 12:50:05,368 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-27 12:50:05,407 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-27 12:50:05,422 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-27 12:50:05,423 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-27 12:50:05,424 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-27 12:50:05,431 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-27 12:50:05,432 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-27 12:50:05,433 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-27 12:50:05,434 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-27 12:50:05,434 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-27 12:50:05,453 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-27 12:50:05,459 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-27 12:50:05,461 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-27 12:50:05,462 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-27 12:50:05,464 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-27 12:50:05,465 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-27 12:50:05,467 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-27 12:50:05,471 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-27 12:50:05,473 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-27 12:50:05,475 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-27 12:50:05,476 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-27 12:50:05,477 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-27 12:50:05,480 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-27 12:50:05,481 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-27 12:50:05,481 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-27 12:50:05,482 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-27 12:50:05,483 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-27 12:50:05,483 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-27 12:50:05,483 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-27 12:50:05,484 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-27 12:50:05,485 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-27 12:50:05,486 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-27 12:50:05,491 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-27 12:50:05,491 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-27 12:50:05,491 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-27 12:50:05,492 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-27 12:50:05,497 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-27 12:50:05,498 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-27 12:50:05,499 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-27 12:50:05,499 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 12:50:05,546 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-27 12:50:05,546 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-27 12:50:05,546 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-27 12:50:05,547 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-27 12:50:05,547 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-27 12:50:05,547 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-27 12:50:05,548 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-27 12:50:05,548 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-27 12:50:05,548 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-27 12:50:05,548 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-27 12:50:05,549 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-27 12:50:05,549 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-27 12:50:05,549 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-27 12:50:05,550 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-27 12:50:05,550 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-27 12:50:05,550 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-27 12:50:05,550 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-27 12:50:05,550 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-27 12:50:05,550 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-27 12:50:05,551 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-27 12:50:05,551 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-27 12:50:05,551 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-27 12:50:05,551 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-27 12:50:05,551 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-27 12:50:05,551 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-27 12:50:05,552 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-27 12:50:05,552 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:50:05,552 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-27 12:50:05,552 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-27 12:50:05,552 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-27 12:50:05,552 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-27 12:50:05,553 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-27 12:50:05,553 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-27 12:50:05,553 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-27 12:50:05,554 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-27 12:50:05,554 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-27 12:50:05,554 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-27 12:50:05,554 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 -> 3db316c172ae12420ec5db09460222d0c37d55b7895de600baa1f62acb4e9cb6
[2023-10-27 12:50:05,908 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-27 12:50:05,931 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-27 12:50:05,933 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-27 12:50:05,934 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-27 12:50:05,934 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-27 12:50:05,935 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race.i
[2023-10-27 12:50:07,532 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-27 12:50:07,912 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-27 12:50:07,914 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race.i
[2023-10-27 12:50:07,928 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/dd9f96388/899942793d4a4fdb81deda602555c70b/FLAG3b3d1694f
[2023-10-27 12:50:07,965 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/dd9f96388/899942793d4a4fdb81deda602555c70b
[2023-10-27 12:50:07,969 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-27 12:50:07,970 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-27 12:50:07,972 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-27 12:50:07,972 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-27 12:50:07,974 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-27 12:50:07,975 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:50:07" (1/1) ...
[2023-10-27 12:50:07,978 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9d9ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:07, skipping insertion in model container
[2023-10-27 12:50:07,978 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:50:07" (1/1) ...
[2023-10-27 12:50:07,983 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-27 12:50:08,046 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-27 12:50:08,497 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:50:08,500 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:50:08,528 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-27 12:50:08,592 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:50:08,594 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:50:08,648 INFO  L208         MainTranslator]: Completed translation
[2023-10-27 12:50:08,651 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08 WrapperNode
[2023-10-27 12:50:08,652 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-27 12:50:08,653 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-27 12:50:08,653 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-27 12:50:08,653 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-27 12:50:08,658 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,677 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,718 INFO  L138                Inliner]: procedures = 159, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80
[2023-10-27 12:50:08,724 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-27 12:50:08,724 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-27 12:50:08,725 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-27 12:50:08,725 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-27 12:50:08,732 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,733 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,747 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,748 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,753 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,771 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,778 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,779 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,788 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-27 12:50:08,789 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-27 12:50:08,789 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-27 12:50:08,789 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-27 12:50:08,790 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (1/1) ...
[2023-10-27 12:50:08,794 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:50:08,821 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:50:08,838 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 12:50:08,877 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 12:50:08,888 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-27 12:50:08,888 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-27 12:50:08,888 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-27 12:50:08,888 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-27 12:50:08,889 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-27 12:50:08,889 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-27 12:50:08,889 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2023-10-27 12:50:08,889 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-27 12:50:08,889 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-27 12:50:08,890 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-27 12:50:08,890 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-27 12:50:08,890 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-27 12:50:08,891 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 12:50:09,095 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-27 12:50:09,097 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-27 12:50:09,503 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-27 12:50:09,516 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-27 12:50:09,527 INFO  L300             CfgBuilder]: Removed 4 assume(true) statements.
[2023-10-27 12:50:09,528 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:09 BoogieIcfgContainer
[2023-10-27 12:50:09,529 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-27 12:50:09,531 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-27 12:50:09,531 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-27 12:50:09,542 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-27 12:50:09,542 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:50:07" (1/3) ...
[2023-10-27 12:50:09,544 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be60584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:50:09, skipping insertion in model container
[2023-10-27 12:50:09,544 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:08" (2/3) ...
[2023-10-27 12:50:09,544 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be60584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:50:09, skipping insertion in model container
[2023-10-27 12:50:09,544 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:09" (3/3) ...
[2023-10-27 12:50:09,546 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race.i
[2023-10-27 12:50:09,552 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-27 12:50:09,563 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-27 12:50:09,563 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2023-10-27 12:50:09,564 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-27 12:50:09,658 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:50:09,715 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 285 flow
[2023-10-27 12:50:09,848 INFO  L130       PetriNetUnfolder]: 13/175 cut-off events.
[2023-10-27 12:50:09,848 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:50:09,863 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 180 conditions, 175 events. 13/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 101. Up to 6 conditions per place. 
[2023-10-27 12:50:09,864 INFO  L82        GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 285 flow
[2023-10-27 12:50:09,872 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 135 places, 140 transitions, 285 flow
[2023-10-27 12:50:09,875 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:50:09,906 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 140 transitions, 285 flow
[2023-10-27 12:50:09,924 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 140 transitions, 285 flow
[2023-10-27 12:50:09,925 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 285 flow
[2023-10-27 12:50:09,975 INFO  L130       PetriNetUnfolder]: 13/175 cut-off events.
[2023-10-27 12:50:09,986 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:50:09,987 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 180 conditions, 175 events. 13/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 101. Up to 6 conditions per place. 
[2023-10-27 12:50:09,990 INFO  L119        LiptonReduction]: Number of co-enabled transitions 5184
[2023-10-27 12:50:13,168 INFO  L134        LiptonReduction]: Checked pairs total: 20474
[2023-10-27 12:50:13,168 INFO  L136        LiptonReduction]: Total number of compositions: 89
[2023-10-27 12:50:13,187 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:50:13,207 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;@3df52131, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:50:13,207 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 18 error locations.
[2023-10-27 12:50:13,218 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:50:13,218 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:50:13,219 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:13,219 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:50:13,220 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] ===
[2023-10-27 12:50:13,223 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:13,223 INFO  L85        PathProgramCache]: Analyzing trace with hash 14949756, now seen corresponding path program 1 times
[2023-10-27 12:50:13,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:13,247 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719868476]
[2023-10-27 12:50:13,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:13,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:13,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:50:13,522 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 12:50:13,523 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:50:13,523 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719868476]
[2023-10-27 12:50:13,524 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719868476] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:50:13,524 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:50:13,524 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:50:13,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838800396]
[2023-10-27 12:50:13,526 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:50:13,531 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:50:13,547 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:50:13,566 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:50:13,586 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:50:13,621 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 120 out of 229
[2023-10-27 12:50:13,637 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 123 flow. Second operand  has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 12:50:13,638 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:50:13,638 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 229
[2023-10-27 12:50:13,639 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:50:13,886 INFO  L130       PetriNetUnfolder]: 318/895 cut-off events.
[2023-10-27 12:50:13,886 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:50:13,889 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1523 conditions, 895 events. 318/895 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5477 event pairs, 88 based on Foata normal form. 22/782 useless extension candidates. Maximal degree in co-relation 1480. Up to 373 conditions per place. 
[2023-10-27 12:50:13,908 INFO  L137   encePairwiseOnDemand]: 213/229 looper letters, 46 selfloop transitions, 8 changer transitions 0/75 dead transitions.
[2023-10-27 12:50:13,908 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 75 transitions, 263 flow
[2023-10-27 12:50:13,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:50:13,910 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:50:13,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions.
[2023-10-27 12:50:13,925 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6200873362445415
[2023-10-27 12:50:13,925 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 426 transitions.
[2023-10-27 12:50:13,927 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions.
[2023-10-27 12:50:13,931 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:50:13,932 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions.
[2023-10-27 12:50:13,937 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 12:50:13,954 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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 12:50:13,955 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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 12:50:13,956 INFO  L175             Difference]: Start difference. First operand has 56 places, 59 transitions, 123 flow. Second operand 3 states and 426 transitions.
[2023-10-27 12:50:13,970 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 75 transitions, 263 flow
[2023-10-27 12:50:13,972 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 75 transitions, 263 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:50:13,974 INFO  L231             Difference]: Finished difference. Result has 57 places, 59 transitions, 171 flow
[2023-10-27 12:50:13,975 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=57, PETRI_TRANSITIONS=59}
[2023-10-27 12:50:13,978 INFO  L288   CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places.
[2023-10-27 12:50:13,978 INFO  L495      AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 171 flow
[2023-10-27 12:50:13,979 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 12:50:13,979 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:13,979 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-27 12:50:13,980 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-27 12:50:13,980 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] ===
[2023-10-27 12:50:13,982 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:13,983 INFO  L85        PathProgramCache]: Analyzing trace with hash 1503887390, now seen corresponding path program 1 times
[2023-10-27 12:50:13,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:13,986 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196711356]
[2023-10-27 12:50:13,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:13,986 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:14,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:50:14,096 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:50:14,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:50:14,190 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:50:14,190 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:50:14,195 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining)
[2023-10-27 12:50:14,196 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining)
[2023-10-27 12:50:14,196 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining)
[2023-10-27 12:50:14,197 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining)
[2023-10-27 12:50:14,197 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining)
[2023-10-27 12:50:14,197 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining)
[2023-10-27 12:50:14,198 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining)
[2023-10-27 12:50:14,198 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining)
[2023-10-27 12:50:14,198 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining)
[2023-10-27 12:50:14,198 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining)
[2023-10-27 12:50:14,199 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining)
[2023-10-27 12:50:14,199 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining)
[2023-10-27 12:50:14,200 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining)
[2023-10-27 12:50:14,200 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining)
[2023-10-27 12:50:14,200 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining)
[2023-10-27 12:50:14,200 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining)
[2023-10-27 12:50:14,201 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining)
[2023-10-27 12:50:14,204 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining)
[2023-10-27 12:50:14,204 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-27 12:50:14,204 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-27 12:50:14,221 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:50:14,221 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-27 12:50:14,260 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:50:14,276 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 184 places, 189 transitions, 390 flow
[2023-10-27 12:50:14,322 INFO  L130       PetriNetUnfolder]: 20/277 cut-off events.
[2023-10-27 12:50:14,322 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:50:14,323 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 287 conditions, 277 events. 20/277 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 627 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 176. Up to 9 conditions per place. 
[2023-10-27 12:50:14,323 INFO  L82        GeneralOperation]: Start removeDead. Operand has 184 places, 189 transitions, 390 flow
[2023-10-27 12:50:14,325 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 184 places, 189 transitions, 390 flow
[2023-10-27 12:50:14,325 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:50:14,325 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 189 transitions, 390 flow
[2023-10-27 12:50:14,325 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 189 transitions, 390 flow
[2023-10-27 12:50:14,341 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 184 places, 189 transitions, 390 flow
[2023-10-27 12:50:14,376 INFO  L130       PetriNetUnfolder]: 20/277 cut-off events.
[2023-10-27 12:50:14,376 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:50:14,378 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 287 conditions, 277 events. 20/277 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 627 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 176. Up to 9 conditions per place. 
[2023-10-27 12:50:14,387 INFO  L119        LiptonReduction]: Number of co-enabled transitions 15072
[2023-10-27 12:50:17,483 INFO  L134        LiptonReduction]: Checked pairs total: 73114
[2023-10-27 12:50:17,484 INFO  L136        LiptonReduction]: Total number of compositions: 105
[2023-10-27 12:50:17,485 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:50:17,486 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;@3df52131, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:50:17,486 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 24 error locations.
[2023-10-27 12:50:17,487 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:50:17,487 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:50:17,487 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:17,487 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:50:17,487 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:50:17,487 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:17,487 INFO  L85        PathProgramCache]: Analyzing trace with hash 25499861, now seen corresponding path program 1 times
[2023-10-27 12:50:17,487 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:17,488 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793463463]
[2023-10-27 12:50:17,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:17,488 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:17,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:50:17,561 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 12:50:17,561 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:50:17,561 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793463463]
[2023-10-27 12:50:17,562 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793463463] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:50:17,562 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:50:17,562 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:50:17,562 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522478840]
[2023-10-27 12:50:17,562 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:50:17,562 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:50:17,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:50:17,563 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:50:17,563 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:50:17,612 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 159 out of 294
[2023-10-27 12:50:17,613 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 202 flow. Second operand  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 12:50:17,614 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:50:17,614 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 294
[2023-10-27 12:50:17,614 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:50:20,465 INFO  L130       PetriNetUnfolder]: 11182/23001 cut-off events.
[2023-10-27 12:50:20,481 INFO  L131       PetriNetUnfolder]: For 55/55 co-relation queries the response was YES.
[2023-10-27 12:50:20,537 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 40065 conditions, 23001 events. 11182/23001 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 219269 event pairs, 3777 based on Foata normal form. 802/20661 useless extension candidates. Maximal degree in co-relation 23425. Up to 9118 conditions per place. 
[2023-10-27 12:50:20,754 INFO  L137   encePairwiseOnDemand]: 267/294 looper letters, 74 selfloop transitions, 16 changer transitions 0/131 dead transitions.
[2023-10-27 12:50:20,754 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 131 transitions, 459 flow
[2023-10-27 12:50:20,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:50:20,755 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:50:20,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions.
[2023-10-27 12:50:20,760 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6609977324263039
[2023-10-27 12:50:20,760 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 583 transitions.
[2023-10-27 12:50:20,760 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions.
[2023-10-27 12:50:20,761 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:50:20,761 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions.
[2023-10-27 12:50:20,762 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 12:50:20,764 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 12:50:20,765 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 12:50:20,765 INFO  L175             Difference]: Start difference. First operand has 92 places, 95 transitions, 202 flow. Second operand 3 states and 583 transitions.
[2023-10-27 12:50:20,765 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 131 transitions, 459 flow
[2023-10-27 12:50:20,767 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 131 transitions, 457 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-10-27 12:50:20,774 INFO  L231             Difference]: Finished difference. Result has 95 places, 106 transitions, 330 flow
[2023-10-27 12:50:20,775 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=95, PETRI_TRANSITIONS=106}
[2023-10-27 12:50:20,775 INFO  L288   CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places.
[2023-10-27 12:50:20,776 INFO  L495      AbstractCegarLoop]: Abstraction has has 95 places, 106 transitions, 330 flow
[2023-10-27 12:50:20,776 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 12:50:20,776 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:20,776 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:50:20,776 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-27 12:50:20,777 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:50:20,777 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:20,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -1468151836, now seen corresponding path program 1 times
[2023-10-27 12:50:20,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:20,777 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69928818]
[2023-10-27 12:50:20,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:20,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:20,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:50:20,850 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 12:50:20,850 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:50:20,850 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69928818]
[2023-10-27 12:50:20,851 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69928818] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:50:20,851 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:50:20,851 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:50:20,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590704373]
[2023-10-27 12:50:20,854 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:50:20,855 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:50:20,869 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:50:20,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:50:20,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:50:20,890 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 173 out of 294
[2023-10-27 12:50:20,891 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 106 transitions, 330 flow. Second operand  has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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 12:50:20,891 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:50:20,891 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 294
[2023-10-27 12:50:20,891 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:50:23,577 INFO  L130       PetriNetUnfolder]: 9947/22024 cut-off events.
[2023-10-27 12:50:23,578 INFO  L131       PetriNetUnfolder]: For 5936/6639 co-relation queries the response was YES.
[2023-10-27 12:50:23,665 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 43449 conditions, 22024 events. 9947/22024 cut-off events. For 5936/6639 co-relation queries the response was YES. Maximal size of possible extension queue 855. Compared 224863 event pairs, 5426 based on Foata normal form. 67/19198 useless extension candidates. Maximal degree in co-relation 16552. Up to 11631 conditions per place. 
[2023-10-27 12:50:23,836 INFO  L137   encePairwiseOnDemand]: 288/294 looper letters, 67 selfloop transitions, 5 changer transitions 0/137 dead transitions.
[2023-10-27 12:50:23,850 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 137 transitions, 566 flow
[2023-10-27 12:50:23,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:50:23,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:50:23,852 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions.
[2023-10-27 12:50:23,852 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6598639455782312
[2023-10-27 12:50:23,853 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 582 transitions.
[2023-10-27 12:50:23,853 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions.
[2023-10-27 12:50:23,853 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:50:23,853 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions.
[2023-10-27 12:50:23,854 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 12:50:23,856 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 12:50:23,856 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 12:50:23,857 INFO  L175             Difference]: Start difference. First operand has 95 places, 106 transitions, 330 flow. Second operand 3 states and 582 transitions.
[2023-10-27 12:50:23,857 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 137 transitions, 566 flow
[2023-10-27 12:50:23,913 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 137 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:50:23,915 INFO  L231             Difference]: Finished difference. Result has 97 places, 110 transitions, 336 flow
[2023-10-27 12:50:23,915 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=97, PETRI_TRANSITIONS=110}
[2023-10-27 12:50:23,917 INFO  L288   CegarLoopForPetriNet]: 92 programPoint places, 5 predicate places.
[2023-10-27 12:50:23,917 INFO  L495      AbstractCegarLoop]: Abstraction has has 97 places, 110 transitions, 336 flow
[2023-10-27 12:50:23,918 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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 12:50:23,918 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:23,918 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:50:23,918 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-27 12:50:23,918 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:50:23,918 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:23,919 INFO  L85        PathProgramCache]: Analyzing trace with hash -1437799566, now seen corresponding path program 1 times
[2023-10-27 12:50:23,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:23,919 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286991929]
[2023-10-27 12:50:23,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:23,919 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:23,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:50:23,991 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 12:50:23,991 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:50:23,991 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286991929]
[2023-10-27 12:50:23,992 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286991929] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:50:23,992 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:50:23,992 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:50:23,992 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751316783]
[2023-10-27 12:50:23,992 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:50:23,993 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:50:23,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:50:23,993 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:50:23,993 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:50:24,042 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 167 out of 294
[2023-10-27 12:50:24,043 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 110 transitions, 336 flow. Second operand  has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 12:50:24,043 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:50:24,043 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 294
[2023-10-27 12:50:24,043 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:50:24,207 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 42#L685true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,207 INFO  L383   tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event
[2023-10-27 12:50:24,207 INFO  L386   tUnfolder$Statistics]:   existing Event has 19 ancestors and is cut-off event
[2023-10-27 12:50:24,207 INFO  L386   tUnfolder$Statistics]:   existing Event has 19 ancestors and is cut-off event
[2023-10-27 12:50:24,208 INFO  L386   tUnfolder$Statistics]:   existing Event has 22 ancestors and is cut-off event
[2023-10-27 12:50:24,210 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [5#L686-4true, Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, threadThread1of2ForFork0InUse, 199#true, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,210 INFO  L383   tUnfolder$Statistics]: this new event has 23 ancestors and is cut-off event
[2023-10-27 12:50:24,210 INFO  L386   tUnfolder$Statistics]:   existing Event has 20 ancestors and is cut-off event
[2023-10-27 12:50:24,211 INFO  L386   tUnfolder$Statistics]:   existing Event has 23 ancestors and is cut-off event
[2023-10-27 12:50:24,211 INFO  L386   tUnfolder$Statistics]:   existing Event has 20 ancestors and is cut-off event
[2023-10-27 12:50:24,303 INFO  L381   tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [5#L686-4true, Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,303 INFO  L383   tUnfolder$Statistics]: this new event has 23 ancestors and is cut-off event
[2023-10-27 12:50:24,303 INFO  L386   tUnfolder$Statistics]:   existing Event has 20 ancestors and is cut-off event
[2023-10-27 12:50:24,303 INFO  L386   tUnfolder$Statistics]:   existing Event has 23 ancestors and is cut-off event
[2023-10-27 12:50:24,304 INFO  L386   tUnfolder$Statistics]:   existing Event has 20 ancestors and is cut-off event
[2023-10-27 12:50:24,304 INFO  L386   tUnfolder$Statistics]:   existing Event has 23 ancestors and is cut-off event
[2023-10-27 12:50:24,476 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, 73#L689true, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,476 INFO  L383   tUnfolder$Statistics]: this new event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,476 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,477 INFO  L386   tUnfolder$Statistics]:   existing Event has 25 ancestors and is cut-off event
[2023-10-27 12:50:24,477 INFO  L386   tUnfolder$Statistics]:   existing Event has 25 ancestors and is cut-off event
[2023-10-27 12:50:24,587 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 167#L689-2true])
[2023-10-27 12:50:24,601 INFO  L383   tUnfolder$Statistics]: this new event has 29 ancestors and is cut-off event
[2023-10-27 12:50:24,601 INFO  L386   tUnfolder$Statistics]:   existing Event has 26 ancestors and is cut-off event
[2023-10-27 12:50:24,601 INFO  L386   tUnfolder$Statistics]:   existing Event has 26 ancestors and is cut-off event
[2023-10-27 12:50:24,601 INFO  L386   tUnfolder$Statistics]:   existing Event has 29 ancestors and is cut-off event
[2023-10-27 12:50:24,640 INFO  L381   tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 193#true, 32#L684-2true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 199#true, 73#L689true, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,650 INFO  L383   tUnfolder$Statistics]: this new event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,651 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,651 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,651 INFO  L386   tUnfolder$Statistics]:   existing Event has 25 ancestors and is cut-off event
[2023-10-27 12:50:24,651 INFO  L386   tUnfolder$Statistics]:   existing Event has 25 ancestors and is cut-off event
[2023-10-27 12:50:24,652 INFO  L381   tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 167#L689-2true])
[2023-10-27 12:50:24,652 INFO  L383   tUnfolder$Statistics]: this new event has 29 ancestors and is cut-off event
[2023-10-27 12:50:24,652 INFO  L386   tUnfolder$Statistics]:   existing Event has 26 ancestors and is cut-off event
[2023-10-27 12:50:24,652 INFO  L386   tUnfolder$Statistics]:   existing Event has 26 ancestors and is cut-off event
[2023-10-27 12:50:24,652 INFO  L386   tUnfolder$Statistics]:   existing Event has 29 ancestors and is cut-off event
[2023-10-27 12:50:24,652 INFO  L386   tUnfolder$Statistics]:   existing Event has 29 ancestors and is cut-off event
[2023-10-27 12:50:24,661 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 25#L689-4true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,672 INFO  L383   tUnfolder$Statistics]: this new event has 30 ancestors and is cut-off event
[2023-10-27 12:50:24,672 INFO  L386   tUnfolder$Statistics]:   existing Event has 27 ancestors and is cut-off event
[2023-10-27 12:50:24,672 INFO  L386   tUnfolder$Statistics]:   existing Event has 30 ancestors and is cut-off event
[2023-10-27 12:50:24,672 INFO  L386   tUnfolder$Statistics]:   existing Event has 27 ancestors and is cut-off event
[2023-10-27 12:50:24,681 INFO  L381   tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 25#L689-4true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,681 INFO  L383   tUnfolder$Statistics]: this new event has 30 ancestors and is cut-off event
[2023-10-27 12:50:24,681 INFO  L386   tUnfolder$Statistics]:   existing Event has 27 ancestors and is cut-off event
[2023-10-27 12:50:24,682 INFO  L386   tUnfolder$Statistics]:   existing Event has 30 ancestors and is cut-off event
[2023-10-27 12:50:24,682 INFO  L386   tUnfolder$Statistics]:   existing Event has 30 ancestors and is cut-off event
[2023-10-27 12:50:24,682 INFO  L386   tUnfolder$Statistics]:   existing Event has 27 ancestors and is cut-off event
[2023-10-27 12:50:24,755 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 104#L690true, threadThread1of2ForFork0InUse, 199#true, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,769 INFO  L383   tUnfolder$Statistics]: this new event has 31 ancestors and is cut-off event
[2023-10-27 12:50:24,769 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,769 INFO  L386   tUnfolder$Statistics]:   existing Event has 31 ancestors and is cut-off event
[2023-10-27 12:50:24,770 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,847 INFO  L381   tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([593] L705-3-->L705: Formula: (= 0 |v_#race~threads_alive~0_1|)  InVars {}  OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|}  AuxVars[]  AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 139#L705true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 32#L684-2true, 199#true, 104#L690true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse])
[2023-10-27 12:50:24,847 INFO  L383   tUnfolder$Statistics]: this new event has 31 ancestors and is cut-off event
[2023-10-27 12:50:24,847 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:24,847 INFO  L386   tUnfolder$Statistics]:   existing Event has 31 ancestors and is cut-off event
[2023-10-27 12:50:24,847 INFO  L386   tUnfolder$Statistics]:   existing Event has 31 ancestors and is cut-off event
[2023-10-27 12:50:24,847 INFO  L386   tUnfolder$Statistics]:   existing Event has 28 ancestors and is cut-off event
[2023-10-27 12:50:25,682 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([724] L684-4-->L684-6: Formula: (= |v_threadThread2of2ForFork0_#t~nondet1_15| |v_#race~threads_alive~0_37|)  InVars {}  OutVars{threadThread2of2ForFork0_#t~nondet1=|v_threadThread2of2ForFork0_#t~nondet1_15|, #race~threads_alive~0=|v_#race~threads_alive~0_37|}  AuxVars[]  AssignedVars[threadThread2of2ForFork0_#t~nondet1, #race~threads_alive~0][39], [116#L684-6true, 8#L709-2true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 199#true, threadThread2of2ForFork0InUse, 167#L689-2true, Black: 189#(= |#race~threads_alive~0| 0)])
[2023-10-27 12:50:25,682 INFO  L383   tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event
[2023-10-27 12:50:25,682 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is cut-off event
[2023-10-27 12:50:25,682 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is cut-off event
[2023-10-27 12:50:25,682 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is cut-off event
[2023-10-27 12:50:25,787 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([724] L684-4-->L684-6: Formula: (= |v_threadThread2of2ForFork0_#t~nondet1_15| |v_#race~threads_alive~0_37|)  InVars {}  OutVars{threadThread2of2ForFork0_#t~nondet1=|v_threadThread2of2ForFork0_#t~nondet1_15|, #race~threads_alive~0=|v_#race~threads_alive~0_37|}  AuxVars[]  AssignedVars[threadThread2of2ForFork0_#t~nondet1, #race~threads_alive~0][39], [116#L684-6true, 8#L709-2true, 25#L689-4true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 199#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, Black: 189#(= |#race~threads_alive~0| 0)])
[2023-10-27 12:50:25,788 INFO  L383   tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event
[2023-10-27 12:50:25,788 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-10-27 12:50:25,788 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-10-27 12:50:25,788 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-10-27 12:50:25,837 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([724] L684-4-->L684-6: Formula: (= |v_threadThread2of2ForFork0_#t~nondet1_15| |v_#race~threads_alive~0_37|)  InVars {}  OutVars{threadThread2of2ForFork0_#t~nondet1=|v_threadThread2of2ForFork0_#t~nondet1_15|, #race~threads_alive~0=|v_#race~threads_alive~0_37|}  AuxVars[]  AssignedVars[threadThread2of2ForFork0_#t~nondet1, #race~threads_alive~0][39], [116#L684-6true, 8#L709-2true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 199#true, 104#L690true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, Black: 189#(= |#race~threads_alive~0| 0)])
[2023-10-27 12:50:25,838 INFO  L383   tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event
[2023-10-27 12:50:25,838 INFO  L386   tUnfolder$Statistics]:   existing Event has 40 ancestors and is cut-off event
[2023-10-27 12:50:25,838 INFO  L386   tUnfolder$Statistics]:   existing Event has 40 ancestors and is cut-off event
[2023-10-27 12:50:25,838 INFO  L386   tUnfolder$Statistics]:   existing Event has 40 ancestors and is cut-off event
[2023-10-27 12:50:26,536 INFO  L130       PetriNetUnfolder]: 11057/24427 cut-off events.
[2023-10-27 12:50:26,536 INFO  L131       PetriNetUnfolder]: For 8071/9493 co-relation queries the response was YES.
[2023-10-27 12:50:26,579 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 50716 conditions, 24427 events. 11057/24427 cut-off events. For 8071/9493 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 250149 event pairs, 6048 based on Foata normal form. 174/20993 useless extension candidates. Maximal degree in co-relation 32986. Up to 15235 conditions per place. 
[2023-10-27 12:50:26,774 INFO  L137   encePairwiseOnDemand]: 285/294 looper letters, 64 selfloop transitions, 15 changer transitions 0/140 dead transitions.
[2023-10-27 12:50:26,781 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 140 transitions, 593 flow
[2023-10-27 12:50:26,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:50:26,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:50:26,783 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions.
[2023-10-27 12:50:26,783 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6383219954648526
[2023-10-27 12:50:26,783 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 563 transitions.
[2023-10-27 12:50:26,783 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions.
[2023-10-27 12:50:26,783 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:50:26,784 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions.
[2023-10-27 12:50:26,785 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 12:50:26,798 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 12:50:26,799 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 12:50:26,799 INFO  L175             Difference]: Start difference. First operand has 97 places, 110 transitions, 336 flow. Second operand 3 states and 563 transitions.
[2023-10-27 12:50:26,800 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 140 transitions, 593 flow
[2023-10-27 12:50:26,855 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 140 transitions, 579 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:50:26,857 INFO  L231             Difference]: Finished difference. Result has 98 places, 123 transitions, 449 flow
[2023-10-27 12:50:26,857 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=98, PETRI_TRANSITIONS=123}
[2023-10-27 12:50:26,858 INFO  L288   CegarLoopForPetriNet]: 92 programPoint places, 6 predicate places.
[2023-10-27 12:50:26,859 INFO  L495      AbstractCegarLoop]: Abstraction has has 98 places, 123 transitions, 449 flow
[2023-10-27 12:50:26,859 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 12:50:26,859 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:26,859 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-27 12:50:26,859 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-27 12:50:26,860 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:50:26,860 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:26,860 INFO  L85        PathProgramCache]: Analyzing trace with hash -1026588499, now seen corresponding path program 1 times
[2023-10-27 12:50:26,861 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:26,863 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213513771]
[2023-10-27 12:50:26,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:26,863 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:26,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:50:26,925 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:50:26,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:50:26,956 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:50:26,956 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:50:26,958 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining)
[2023-10-27 12:50:26,959 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining)
[2023-10-27 12:50:26,959 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining)
[2023-10-27 12:50:26,959 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining)
[2023-10-27 12:50:26,959 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining)
[2023-10-27 12:50:26,959 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining)
[2023-10-27 12:50:26,960 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining)
[2023-10-27 12:50:26,960 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining)
[2023-10-27 12:50:26,960 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining)
[2023-10-27 12:50:26,961 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining)
[2023-10-27 12:50:26,962 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining)
[2023-10-27 12:50:26,962 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining)
[2023-10-27 12:50:26,962 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining)
[2023-10-27 12:50:26,962 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining)
[2023-10-27 12:50:26,962 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining)
[2023-10-27 12:50:26,962 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining)
[2023-10-27 12:50:26,963 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining)
[2023-10-27 12:50:26,964 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining)
[2023-10-27 12:50:26,964 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-27 12:50:26,964 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-27 12:50:26,965 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:50:26,965 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-27 12:50:27,001 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:50:27,005 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 497 flow
[2023-10-27 12:50:27,075 INFO  L130       PetriNetUnfolder]: 27/379 cut-off events.
[2023-10-27 12:50:27,076 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:50:27,078 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 395 conditions, 379 events. 27/379 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 945 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 281. Up to 12 conditions per place. 
[2023-10-27 12:50:27,078 INFO  L82        GeneralOperation]: Start removeDead. Operand has 233 places, 238 transitions, 497 flow
[2023-10-27 12:50:27,080 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 233 places, 238 transitions, 497 flow
[2023-10-27 12:50:27,080 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:50:27,080 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 497 flow
[2023-10-27 12:50:27,081 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 497 flow
[2023-10-27 12:50:27,081 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 497 flow
[2023-10-27 12:50:27,175 INFO  L130       PetriNetUnfolder]: 27/379 cut-off events.
[2023-10-27 12:50:27,175 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:50:27,176 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 395 conditions, 379 events. 27/379 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 945 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 281. Up to 12 conditions per place. 
[2023-10-27 12:50:27,188 INFO  L119        LiptonReduction]: Number of co-enabled transitions 29664
[2023-10-27 12:50:30,813 INFO  L134        LiptonReduction]: Checked pairs total: 172945
[2023-10-27 12:50:30,814 INFO  L136        LiptonReduction]: Total number of compositions: 126
[2023-10-27 12:50:30,815 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:50:30,815 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;@3df52131, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:50:30,815 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 30 error locations.
[2023-10-27 12:50:30,817 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:50:30,817 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:50:30,817 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:50:30,817 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:50:30,817 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2023-10-27 12:50:30,817 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:50:30,818 INFO  L85        PathProgramCache]: Analyzing trace with hash 38202764, now seen corresponding path program 1 times
[2023-10-27 12:50:30,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:50:30,818 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043932211]
[2023-10-27 12:50:30,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:50:30,818 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:50:30,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:50:30,844 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 12:50:30,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:50:30,844 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043932211]
[2023-10-27 12:50:30,844 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043932211] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:50:30,845 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:50:30,845 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:50:30,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785227937]
[2023-10-27 12:50:30,845 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:50:30,845 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:50:30,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:50:30,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:50:30,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:50:30,912 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 198 out of 364
[2023-10-27 12:50:30,913 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 128 transitions, 277 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 12:50:30,913 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:50:30,913 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 364
[2023-10-27 12:50:30,913 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
