./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-array-const-race-2.i --full-output --architecture 32bit


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


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data -tc /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-2.i -s /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6522688b75eabd4613afff43fc24a072ce425cbb7b76f809d7e56aded5f14999
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-26 08:56:20,618 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-26 08:56:20,620 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-26 08:56:20,671 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-26 08:56:20,671 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-26 08:56:20,674 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-26 08:56:20,675 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-26 08:56:20,677 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-26 08:56:20,678 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-26 08:56:20,682 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-26 08:56:20,683 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-26 08:56:20,684 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-26 08:56:20,697 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-26 08:56:20,699 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-26 08:56:20,701 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-26 08:56:20,702 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-26 08:56:20,703 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-26 08:56:20,703 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-26 08:56:20,704 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-26 08:56:20,708 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-26 08:56:20,709 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-26 08:56:20,710 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-26 08:56:20,711 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-26 08:56:20,712 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-26 08:56:20,717 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-26 08:56:20,718 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-26 08:56:20,718 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-26 08:56:20,719 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-26 08:56:20,719 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-26 08:56:20,720 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-26 08:56:20,720 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-26 08:56:20,733 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-26 08:56:20,734 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-26 08:56:20,736 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-26 08:56:20,736 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-26 08:56:20,736 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-26 08:56:20,737 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-26 08:56:20,737 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-26 08:56:20,737 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-26 08:56:20,738 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-26 08:56:20,739 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-26 08:56:20,739 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-26 08:56:20,778 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-26 08:56:20,778 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-26 08:56:20,779 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-26 08:56:20,779 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-26 08:56:20,780 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-26 08:56:20,780 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-26 08:56:20,780 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-26 08:56:20,781 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-26 08:56:20,781 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-26 08:56:20,781 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-26 08:56:20,782 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-26 08:56:20,782 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-26 08:56:20,782 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-26 08:56:20,782 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-26 08:56:20,782 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-26 08:56:20,783 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-26 08:56:20,783 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-26 08:56:20,783 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-26 08:56:20,783 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-26 08:56:20,783 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-26 08:56:20,784 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-26 08:56:20,784 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-26 08:56:20,784 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-26 08:56:20,784 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-26 08:56:20,784 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-26 08:56:20,785 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-26 08:56:20,785 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-26 08:56:20,785 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-26 08:56:20,785 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-26 08:56:20,786 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-26 08:56:20,786 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-26 08:56:20,786 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-26 08:56:20,787 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-26 08:56:20,787 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-26 08:56:20,787 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-26 08:56:20,787 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-26 08:56:20,787 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-26 08:56:20,788 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 -> 6522688b75eabd4613afff43fc24a072ce425cbb7b76f809d7e56aded5f14999
[2023-10-26 08:56:21,154 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-26 08:56:21,177 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-26 08:56:21,179 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-26 08:56:21,180 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-26 08:56:21,180 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-26 08:56:21,181 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-2.i
[2023-10-26 08:56:22,823 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-26 08:56:23,239 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-26 08:56:23,240 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-2.i
[2023-10-26 08:56:23,266 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/7c4802c94/853aac3512464d719319bc6426e90e90/FLAG91b18ce89
[2023-10-26 08:56:23,276 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/7c4802c94/853aac3512464d719319bc6426e90e90
[2023-10-26 08:56:23,278 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-26 08:56:23,290 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-26 08:56:23,297 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-26 08:56:23,298 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-26 08:56:23,300 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-26 08:56:23,301 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:23,302 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69560f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23, skipping insertion in model container
[2023-10-26 08:56:23,313 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:23,319 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-26 08:56:23,381 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-26 08:56:23,824 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-26 08:56:23,834 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-26 08:56:23,884 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-26 08:56:23,949 INFO  L208         MainTranslator]: Completed translation
[2023-10-26 08:56:23,949 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23 WrapperNode
[2023-10-26 08:56:23,949 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-26 08:56:23,950 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-26 08:56:23,950 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-26 08:56:23,950 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-26 08:56:23,964 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:23,996 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,049 INFO  L138                Inliner]: procedures = 157, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51
[2023-10-26 08:56:24,050 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-26 08:56:24,050 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-26 08:56:24,050 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-26 08:56:24,051 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-26 08:56:24,076 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,077 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,089 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,089 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,100 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,106 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,112 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,117 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,118 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-26 08:56:24,119 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-26 08:56:24,123 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-26 08:56:24,123 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-26 08:56:24,124 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (1/1) ...
[2023-10-26 08:56:24,128 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-26 08:56:24,141 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:56:24,152 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)
[2023-10-26 08:56:24,178 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
[2023-10-26 08:56:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-26 08:56:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-26 08:56:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-26 08:56:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-26 08:56:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-26 08:56:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-26 08:56:24,201 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-26 08:56:24,201 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-26 08:56:24,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-26 08:56:24,201 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-26 08:56:24,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-26 08:56:24,207 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-26 08:56:24,383 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-26 08:56:24,392 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-26 08:56:24,682 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-26 08:56:24,687 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-26 08:56:24,696 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-10-26 08:56:24,698 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:56:24 BoogieIcfgContainer
[2023-10-26 08:56:24,698 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-26 08:56:24,700 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-26 08:56:24,705 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-26 08:56:24,708 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-26 08:56:24,708 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:56:23" (1/3) ...
[2023-10-26 08:56:24,711 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703805ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:56:24, skipping insertion in model container
[2023-10-26 08:56:24,712 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:56:23" (2/3) ...
[2023-10-26 08:56:24,712 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703805ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:56:24, skipping insertion in model container
[2023-10-26 08:56:24,725 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:56:24" (3/3) ...
[2023-10-26 08:56:24,726 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-2.i
[2023-10-26 08:56:24,735 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-26 08:56:24,760 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-26 08:56:24,760 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2023-10-26 08:56:24,761 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-26 08:56:24,872 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-10-26 08:56:24,939 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 69 places, 69 transitions, 146 flow
[2023-10-26 08:56:25,024 INFO  L130       PetriNetUnfolder]: 5/95 cut-off events.
[2023-10-26 08:56:25,024 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:56:25,028 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 101 conditions, 95 events. 5/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. 
[2023-10-26 08:56:25,028 INFO  L82        GeneralOperation]: Start removeDead. Operand has 69 places, 69 transitions, 146 flow
[2023-10-26 08:56:25,032 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 69 places, 69 transitions, 146 flow
[2023-10-26 08:56:25,043 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:56:25,077 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 69 transitions, 146 flow
[2023-10-26 08:56:25,084 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 69 transitions, 146 flow
[2023-10-26 08:56:25,084 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 69 places, 69 transitions, 146 flow
[2023-10-26 08:56:25,128 INFO  L130       PetriNetUnfolder]: 5/95 cut-off events.
[2023-10-26 08:56:25,129 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:56:25,129 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 101 conditions, 95 events. 5/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. 
[2023-10-26 08:56:25,131 INFO  L119        LiptonReduction]: Number of co-enabled transitions 896
[2023-10-26 08:56:27,116 INFO  L134        LiptonReduction]: Checked pairs total: 1515
[2023-10-26 08:56:27,116 INFO  L136        LiptonReduction]: Total number of compositions: 54
[2023-10-26 08:56:27,133 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:56:27,138 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@102e09c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:56:27,138 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:56:27,141 INFO  L130       PetriNetUnfolder]: 0/5 cut-off events.
[2023-10-26 08:56:27,141 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:56:27,141 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:27,142 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:56:27,143 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-10-26 08:56:27,146 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:27,146 INFO  L85        PathProgramCache]: Analyzing trace with hash 253400, now seen corresponding path program 1 times
[2023-10-26 08:56:27,153 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:27,169 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630585953]
[2023-10-26 08:56:27,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:27,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:27,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:27,538 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:27,539 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:27,539 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630585953]
[2023-10-26 08:56:27,540 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630585953] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:27,548 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:27,549 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:27,550 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868769485]
[2023-10-26 08:56:27,550 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:27,556 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:27,569 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:27,587 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:27,600 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:27,640 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 62 out of 123
[2023-10-26 08:56:27,641 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 44 flow. Second operand  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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)
[2023-10-26 08:56:27,642 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:27,642 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 123
[2023-10-26 08:56:27,642 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:27,686 INFO  L130       PetriNetUnfolder]: 12/52 cut-off events.
[2023-10-26 08:56:27,686 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:56:27,687 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 100 conditions, 52 events. 12/52 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 144 event pairs, 5 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 72. Up to 36 conditions per place. 
[2023-10-26 08:56:27,688 INFO  L137   encePairwiseOnDemand]: 119/123 looper letters, 13 selfloop transitions, 2 changer transitions 0/20 dead transitions.
[2023-10-26 08:56:27,693 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 78 flow
[2023-10-26 08:56:27,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:27,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:27,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions.
[2023-10-26 08:56:27,708 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5501355013550135
[2023-10-26 08:56:27,709 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 203 transitions.
[2023-10-26 08:56:27,709 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions.
[2023-10-26 08:56:27,711 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:27,713 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions.
[2023-10-26 08:56:27,719 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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)
[2023-10-26 08:56:27,726 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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)
[2023-10-26 08:56:27,727 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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)
[2023-10-26 08:56:27,729 INFO  L175             Difference]: Start difference. First operand has 20 places, 18 transitions, 44 flow. Second operand 3 states and 203 transitions.
[2023-10-26 08:56:27,729 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 78 flow
[2023-10-26 08:56:27,731 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:56:27,733 INFO  L231             Difference]: Finished difference. Result has 22 places, 17 transitions, 50 flow
[2023-10-26 08:56:27,750 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=17}
[2023-10-26 08:56:27,753 INFO  L288   CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places.
[2023-10-26 08:56:27,768 INFO  L495      AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 50 flow
[2023-10-26 08:56:27,769 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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)
[2023-10-26 08:56:27,769 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:27,769 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:27,769 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-26 08:56:27,770 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-10-26 08:56:27,770 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:27,770 INFO  L85        PathProgramCache]: Analyzing trace with hash -1030225790, now seen corresponding path program 1 times
[2023-10-26 08:56:27,771 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:27,772 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067304451]
[2023-10-26 08:56:27,772 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:27,774 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:27,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:27,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:27,884 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:27,884 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067304451]
[2023-10-26 08:56:27,884 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067304451] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:27,884 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:27,884 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:27,885 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401891045]
[2023-10-26 08:56:27,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:27,886 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:27,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:27,887 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:27,888 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:27,911 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 59 out of 123
[2023-10-26 08:56:27,911 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 50 flow. Second operand  has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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)
[2023-10-26 08:56:27,912 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:27,912 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 123
[2023-10-26 08:56:27,912 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:27,986 INFO  L130       PetriNetUnfolder]: 20/71 cut-off events.
[2023-10-26 08:56:27,986 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:56:27,987 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 153 conditions, 71 events. 20/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 223 event pairs, 13 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 122. Up to 48 conditions per place. 
[2023-10-26 08:56:27,988 INFO  L137   encePairwiseOnDemand]: 119/123 looper letters, 17 selfloop transitions, 3 changer transitions 1/24 dead transitions.
[2023-10-26 08:56:27,988 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 111 flow
[2023-10-26 08:56:27,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:27,989 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:27,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions.
[2023-10-26 08:56:27,994 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5392953929539296
[2023-10-26 08:56:27,994 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 199 transitions.
[2023-10-26 08:56:27,994 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 199 transitions.
[2023-10-26 08:56:27,994 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:27,994 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 199 transitions.
[2023-10-26 08:56:27,996 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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)
[2023-10-26 08:56:27,998 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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)
[2023-10-26 08:56:27,998 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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)
[2023-10-26 08:56:27,998 INFO  L175             Difference]: Start difference. First operand has 22 places, 17 transitions, 50 flow. Second operand 3 states and 199 transitions.
[2023-10-26 08:56:27,998 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 111 flow
[2023-10-26 08:56:28,003 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 105 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:56:28,004 INFO  L231             Difference]: Finished difference. Result has 23 places, 19 transitions, 65 flow
[2023-10-26 08:56:28,004 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=23, PETRI_TRANSITIONS=19}
[2023-10-26 08:56:28,005 INFO  L288   CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places.
[2023-10-26 08:56:28,005 INFO  L495      AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 65 flow
[2023-10-26 08:56:28,005 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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)
[2023-10-26 08:56:28,006 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:28,006 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-26 08:56:28,006 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-26 08:56:28,006 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-10-26 08:56:28,006 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:28,007 INFO  L85        PathProgramCache]: Analyzing trace with hash -1030223241, now seen corresponding path program 1 times
[2023-10-26 08:56:28,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:28,007 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588490147]
[2023-10-26 08:56:28,007 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:28,021 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:28,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:56:28,080 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:56:28,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:56:28,126 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:56:28,127 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:56:28,128 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:56:28,129 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:56:28,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:56:28,130 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:56:28,131 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:56:28,131 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-26 08:56:28,131 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-10-26 08:56:28,134 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:56:28,134 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-26 08:56:28,168 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-10-26 08:56:28,171 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 86 places, 85 transitions, 188 flow
[2023-10-26 08:56:28,230 INFO  L130       PetriNetUnfolder]: 10/167 cut-off events.
[2023-10-26 08:56:28,231 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:56:28,231 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 181 conditions, 167 events. 10/167 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 403 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. 
[2023-10-26 08:56:28,231 INFO  L82        GeneralOperation]: Start removeDead. Operand has 86 places, 85 transitions, 188 flow
[2023-10-26 08:56:28,232 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 86 places, 85 transitions, 188 flow
[2023-10-26 08:56:28,232 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:56:28,233 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 85 transitions, 188 flow
[2023-10-26 08:56:28,233 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 85 transitions, 188 flow
[2023-10-26 08:56:28,233 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 86 places, 85 transitions, 188 flow
[2023-10-26 08:56:28,246 INFO  L130       PetriNetUnfolder]: 10/167 cut-off events.
[2023-10-26 08:56:28,265 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:56:28,266 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 181 conditions, 167 events. 10/167 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 403 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. 
[2023-10-26 08:56:28,269 INFO  L119        LiptonReduction]: Number of co-enabled transitions 2380
[2023-10-26 08:56:30,124 INFO  L134        LiptonReduction]: Checked pairs total: 5120
[2023-10-26 08:56:30,124 INFO  L136        LiptonReduction]: Total number of compositions: 58
[2023-10-26 08:56:30,126 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:56:30,132 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;@102e09c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:56:30,132 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2023-10-26 08:56:30,134 INFO  L130       PetriNetUnfolder]: 0/4 cut-off events.
[2023-10-26 08:56:30,134 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:56:30,134 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:30,134 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:56:30,134 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:56:30,134 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:30,134 INFO  L85        PathProgramCache]: Analyzing trace with hash 411287, now seen corresponding path program 1 times
[2023-10-26 08:56:30,135 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:30,135 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257116292]
[2023-10-26 08:56:30,135 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:30,135 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:30,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:30,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:30,195 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:30,195 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257116292]
[2023-10-26 08:56:30,205 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257116292] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:30,205 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:30,206 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:30,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338996803]
[2023-10-26 08:56:30,209 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:30,209 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:30,210 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:30,210 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:30,211 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:30,231 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 76 out of 143
[2023-10-26 08:56:30,231 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 78 flow. Second operand  has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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)
[2023-10-26 08:56:30,231 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:30,231 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 143
[2023-10-26 08:56:30,232 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:30,411 INFO  L130       PetriNetUnfolder]: 372/753 cut-off events.
[2023-10-26 08:56:30,411 INFO  L131       PetriNetUnfolder]: For 33/33 co-relation queries the response was YES.
[2023-10-26 08:56:30,414 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1444 conditions, 753 events. 372/753 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3870 event pairs, 170 based on Foata normal form. 0/658 useless extension candidates. Maximal degree in co-relation 270. Up to 641 conditions per place. 
[2023-10-26 08:56:30,428 INFO  L137   encePairwiseOnDemand]: 139/143 looper letters, 24 selfloop transitions, 2 changer transitions 0/35 dead transitions.
[2023-10-26 08:56:30,428 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 140 flow
[2023-10-26 08:56:30,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:30,429 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:30,429 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions.
[2023-10-26 08:56:30,430 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5967365967365967
[2023-10-26 08:56:30,430 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 256 transitions.
[2023-10-26 08:56:30,430 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions.
[2023-10-26 08:56:30,430 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:30,430 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions.
[2023-10-26 08:56:30,431 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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)
[2023-10-26 08:56:30,439 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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)
[2023-10-26 08:56:30,440 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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)
[2023-10-26 08:56:30,440 INFO  L175             Difference]: Start difference. First operand has 33 places, 30 transitions, 78 flow. Second operand 3 states and 256 transitions.
[2023-10-26 08:56:30,440 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 140 flow
[2023-10-26 08:56:30,441 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 140 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:56:30,442 INFO  L231             Difference]: Finished difference. Result has 35 places, 30 transitions, 88 flow
[2023-10-26 08:56:30,442 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=35, PETRI_TRANSITIONS=30}
[2023-10-26 08:56:30,443 INFO  L288   CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places.
[2023-10-26 08:56:30,443 INFO  L495      AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 88 flow
[2023-10-26 08:56:30,444 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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)
[2023-10-26 08:56:30,444 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:30,444 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:30,444 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-26 08:56:30,444 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:56:30,445 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:30,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -2032684283, now seen corresponding path program 1 times
[2023-10-26 08:56:30,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:30,445 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908473881]
[2023-10-26 08:56:30,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:30,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:30,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:30,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:30,512 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:30,512 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908473881]
[2023-10-26 08:56:30,512 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908473881] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:30,512 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:30,513 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:30,513 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265750423]
[2023-10-26 08:56:30,513 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:30,513 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:30,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:30,514 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:30,514 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:30,544 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 72 out of 143
[2023-10-26 08:56:30,545 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 88 flow. Second operand  has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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)
[2023-10-26 08:56:30,545 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:30,545 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 143
[2023-10-26 08:56:30,545 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:30,730 INFO  L130       PetriNetUnfolder]: 505/980 cut-off events.
[2023-10-26 08:56:30,730 INFO  L131       PetriNetUnfolder]: For 130/130 co-relation queries the response was YES.
[2023-10-26 08:56:30,732 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1994 conditions, 980 events. 505/980 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5242 event pairs, 294 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 1949. Up to 615 conditions per place. 
[2023-10-26 08:56:30,734 INFO  L137   encePairwiseOnDemand]: 137/143 looper letters, 33 selfloop transitions, 5 changer transitions 0/46 dead transitions.
[2023-10-26 08:56:30,735 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 211 flow
[2023-10-26 08:56:30,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:30,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:30,736 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions.
[2023-10-26 08:56:30,736 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5897435897435898
[2023-10-26 08:56:30,736 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 253 transitions.
[2023-10-26 08:56:30,736 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions.
[2023-10-26 08:56:30,736 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:30,737 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions.
[2023-10-26 08:56:30,737 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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)
[2023-10-26 08:56:30,738 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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)
[2023-10-26 08:56:30,738 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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)
[2023-10-26 08:56:30,738 INFO  L175             Difference]: Start difference. First operand has 35 places, 30 transitions, 88 flow. Second operand 3 states and 253 transitions.
[2023-10-26 08:56:30,739 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 211 flow
[2023-10-26 08:56:30,861 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:56:30,862 INFO  L231             Difference]: Finished difference. Result has 38 places, 34 transitions, 124 flow
[2023-10-26 08:56:30,862 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=38, PETRI_TRANSITIONS=34}
[2023-10-26 08:56:30,862 INFO  L288   CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places.
[2023-10-26 08:56:30,863 INFO  L495      AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 124 flow
[2023-10-26 08:56:30,863 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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)
[2023-10-26 08:56:30,863 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:30,863 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:30,863 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-26 08:56:30,863 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:56:30,863 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:30,863 INFO  L85        PathProgramCache]: Analyzing trace with hash 1288850991, now seen corresponding path program 1 times
[2023-10-26 08:56:30,863 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:30,864 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472501469]
[2023-10-26 08:56:30,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:30,864 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:30,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:30,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:56:30,947 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:30,947 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472501469]
[2023-10-26 08:56:30,948 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472501469] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:30,948 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:30,948 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:56:30,949 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021383593]
[2023-10-26 08:56:30,951 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:30,951 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-10-26 08:56:30,951 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:30,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-10-26 08:56:30,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-10-26 08:56:30,998 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143
[2023-10-26 08:56:30,998 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 124 flow. Second operand  has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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)
[2023-10-26 08:56:30,999 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:30,999 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143
[2023-10-26 08:56:30,999 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:31,184 INFO  L130       PetriNetUnfolder]: 338/685 cut-off events.
[2023-10-26 08:56:31,184 INFO  L131       PetriNetUnfolder]: For 464/478 co-relation queries the response was YES.
[2023-10-26 08:56:31,185 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 685 events. 338/685 cut-off events. For 464/478 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3346 event pairs, 170 based on Foata normal form. 43/714 useless extension candidates. Maximal degree in co-relation 727. Up to 383 conditions per place. 
[2023-10-26 08:56:31,187 INFO  L137   encePairwiseOnDemand]: 139/143 looper letters, 39 selfloop transitions, 3 changer transitions 0/50 dead transitions.
[2023-10-26 08:56:31,187 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 268 flow
[2023-10-26 08:56:31,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-10-26 08:56:31,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-10-26 08:56:31,189 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions.
[2023-10-26 08:56:31,189 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5786713286713286
[2023-10-26 08:56:31,189 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 331 transitions.
[2023-10-26 08:56:31,189 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions.
[2023-10-26 08:56:31,189 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:31,190 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions.
[2023-10-26 08:56:31,190 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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)
[2023-10-26 08:56:31,191 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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)
[2023-10-26 08:56:31,192 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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)
[2023-10-26 08:56:31,192 INFO  L175             Difference]: Start difference. First operand has 38 places, 34 transitions, 124 flow. Second operand 4 states and 331 transitions.
[2023-10-26 08:56:31,192 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 268 flow
[2023-10-26 08:56:31,196 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:56:31,197 INFO  L231             Difference]: Finished difference. Result has 40 places, 35 transitions, 130 flow
[2023-10-26 08:56:31,197 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=40, PETRI_TRANSITIONS=35}
[2023-10-26 08:56:31,200 INFO  L288   CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places.
[2023-10-26 08:56:31,200 INFO  L495      AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 130 flow
[2023-10-26 08:56:31,200 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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)
[2023-10-26 08:56:31,200 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:31,200 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-26 08:56:31,200 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-26 08:56:31,201 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:56:31,201 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:31,201 INFO  L85        PathProgramCache]: Analyzing trace with hash -451073316, now seen corresponding path program 1 times
[2023-10-26 08:56:31,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:31,202 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916227450]
[2023-10-26 08:56:31,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:31,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:31,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:56:31,228 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:56:31,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:56:31,237 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:56:31,245 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:56:31,246 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining)
[2023-10-26 08:56:31,246 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining)
[2023-10-26 08:56:31,246 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining)
[2023-10-26 08:56:31,246 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining)
[2023-10-26 08:56:31,247 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining)
[2023-10-26 08:56:31,247 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining)
[2023-10-26 08:56:31,247 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-10-26 08:56:31,247 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-26 08:56:31,248 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:56:31,248 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-26 08:56:31,280 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-10-26 08:56:31,281 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 232 flow
[2023-10-26 08:56:31,318 INFO  L130       PetriNetUnfolder]: 20/286 cut-off events.
[2023-10-26 08:56:31,333 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-26 08:56:31,334 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 314 conditions, 286 events. 20/286 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 855 event pairs, 1 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 175. Up to 16 conditions per place. 
[2023-10-26 08:56:31,334 INFO  L82        GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 232 flow
[2023-10-26 08:56:31,335 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 103 places, 101 transitions, 232 flow
[2023-10-26 08:56:31,335 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:56:31,335 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 101 transitions, 232 flow
[2023-10-26 08:56:31,336 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 101 transitions, 232 flow
[2023-10-26 08:56:31,336 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 232 flow
[2023-10-26 08:56:31,366 INFO  L130       PetriNetUnfolder]: 20/286 cut-off events.
[2023-10-26 08:56:31,381 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-26 08:56:31,382 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 314 conditions, 286 events. 20/286 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 855 event pairs, 1 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 175. Up to 16 conditions per place. 
[2023-10-26 08:56:31,385 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4284
[2023-10-26 08:56:33,102 INFO  L134        LiptonReduction]: Checked pairs total: 10005
[2023-10-26 08:56:33,102 INFO  L136        LiptonReduction]: Total number of compositions: 67
[2023-10-26 08:56:33,103 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:56:33,104 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;@102e09c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:56:33,104 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2023-10-26 08:56:33,105 INFO  L130       PetriNetUnfolder]: 0/4 cut-off events.
[2023-10-26 08:56:33,105 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:56:33,105 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:33,105 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:56:33,105 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:56:33,105 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:33,105 INFO  L85        PathProgramCache]: Analyzing trace with hash 593873, now seen corresponding path program 1 times
[2023-10-26 08:56:33,105 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:33,105 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939698951]
[2023-10-26 08:56:33,105 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:33,106 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:33,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:33,165 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:33,166 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:33,166 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939698951]
[2023-10-26 08:56:33,166 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939698951] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:33,177 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:33,177 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:33,178 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159116549]
[2023-10-26 08:56:33,178 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:33,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:33,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:33,179 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:33,179 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:33,194 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 90 out of 168
[2023-10-26 08:56:33,194 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 106 flow. Second operand  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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)
[2023-10-26 08:56:33,194 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:33,194 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 168
[2023-10-26 08:56:33,195 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:33,899 INFO  L130       PetriNetUnfolder]: 2727/4870 cut-off events.
[2023-10-26 08:56:33,917 INFO  L131       PetriNetUnfolder]: For 394/394 co-relation queries the response was YES.
[2023-10-26 08:56:33,922 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 9218 conditions, 4870 events. 2727/4870 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 32396 event pairs, 1717 based on Foata normal form. 0/4412 useless extension candidates. Maximal degree in co-relation 1279. Up to 4052 conditions per place. 
[2023-10-26 08:56:33,954 INFO  L137   encePairwiseOnDemand]: 164/168 looper letters, 29 selfloop transitions, 2 changer transitions 0/43 dead transitions.
[2023-10-26 08:56:33,955 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 178 flow
[2023-10-26 08:56:33,955 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:33,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:33,956 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions.
[2023-10-26 08:56:33,956 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6011904761904762
[2023-10-26 08:56:33,956 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 303 transitions.
[2023-10-26 08:56:33,956 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions.
[2023-10-26 08:56:33,957 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:33,957 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions.
[2023-10-26 08:56:33,957 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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)
[2023-10-26 08:56:33,958 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:33,959 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:33,959 INFO  L175             Difference]: Start difference. First operand has 42 places, 38 transitions, 106 flow. Second operand 3 states and 303 transitions.
[2023-10-26 08:56:33,959 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 178 flow
[2023-10-26 08:56:33,960 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:56:33,961 INFO  L231             Difference]: Finished difference. Result has 44 places, 38 transitions, 116 flow
[2023-10-26 08:56:33,961 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=38}
[2023-10-26 08:56:33,963 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places.
[2023-10-26 08:56:33,963 INFO  L495      AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 116 flow
[2023-10-26 08:56:33,964 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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)
[2023-10-26 08:56:33,964 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:33,964 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:33,964 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-10-26 08:56:33,964 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:56:33,964 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:33,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -688259915, now seen corresponding path program 1 times
[2023-10-26 08:56:33,965 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:33,966 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378760254]
[2023-10-26 08:56:33,966 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:33,966 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:33,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:33,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:33,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:33,998 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378760254]
[2023-10-26 08:56:33,998 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378760254] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:33,998 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:33,998 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:33,998 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019723778]
[2023-10-26 08:56:33,998 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:33,999 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:33,999 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:33,999 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:34,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:34,021 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 85 out of 168
[2023-10-26 08:56:34,021 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 116 flow. Second operand  has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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)
[2023-10-26 08:56:34,021 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:34,021 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 168
[2023-10-26 08:56:34,022 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:35,203 INFO  L130       PetriNetUnfolder]: 5894/9408 cut-off events.
[2023-10-26 08:56:35,217 INFO  L131       PetriNetUnfolder]: For 1266/1266 co-relation queries the response was YES.
[2023-10-26 08:56:35,227 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19069 conditions, 9408 events. 5894/9408 cut-off events. For 1266/1266 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 59256 event pairs, 4789 based on Foata normal form. 0/8587 useless extension candidates. Maximal degree in co-relation 19018. Up to 7622 conditions per place. 
[2023-10-26 08:56:35,313 INFO  L137   encePairwiseOnDemand]: 162/168 looper letters, 47 selfloop transitions, 5 changer transitions 0/60 dead transitions.
[2023-10-26 08:56:35,313 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 289 flow
[2023-10-26 08:56:35,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:35,314 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:35,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions.
[2023-10-26 08:56:35,315 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6071428571428571
[2023-10-26 08:56:35,315 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 306 transitions.
[2023-10-26 08:56:35,315 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions.
[2023-10-26 08:56:35,315 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:35,315 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions.
[2023-10-26 08:56:35,318 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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)
[2023-10-26 08:56:35,319 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:35,319 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:35,319 INFO  L175             Difference]: Start difference. First operand has 44 places, 38 transitions, 116 flow. Second operand 3 states and 306 transitions.
[2023-10-26 08:56:35,319 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 289 flow
[2023-10-26 08:56:35,321 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:56:35,322 INFO  L231             Difference]: Finished difference. Result has 46 places, 42 transitions, 147 flow
[2023-10-26 08:56:35,322 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=46, PETRI_TRANSITIONS=42}
[2023-10-26 08:56:35,323 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places.
[2023-10-26 08:56:35,323 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 147 flow
[2023-10-26 08:56:35,327 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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)
[2023-10-26 08:56:35,327 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:35,328 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:35,328 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-10-26 08:56:35,328 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:56:35,328 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:35,328 INFO  L85        PathProgramCache]: Analyzing trace with hash 748844, now seen corresponding path program 1 times
[2023-10-26 08:56:35,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:35,329 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857891585]
[2023-10-26 08:56:35,329 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:35,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:35,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:35,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:56:35,416 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:35,416 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857891585]
[2023-10-26 08:56:35,417 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857891585] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:35,418 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:35,418 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:56:35,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714904860]
[2023-10-26 08:56:35,418 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:35,419 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-10-26 08:56:35,419 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:35,419 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-10-26 08:56:35,419 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-10-26 08:56:35,442 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 88 out of 168
[2023-10-26 08:56:35,442 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 147 flow. Second operand  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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)
[2023-10-26 08:56:35,443 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:35,443 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 168
[2023-10-26 08:56:35,443 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:36,234 INFO  L130       PetriNetUnfolder]: 3162/5514 cut-off events.
[2023-10-26 08:56:36,235 INFO  L131       PetriNetUnfolder]: For 1355/2003 co-relation queries the response was YES.
[2023-10-26 08:56:36,242 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 12182 conditions, 5514 events. 3162/5514 cut-off events. For 1355/2003 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 36320 event pairs, 1811 based on Foata normal form. 532/5797 useless extension candidates. Maximal degree in co-relation 4425. Up to 2993 conditions per place. 
[2023-10-26 08:56:36,254 INFO  L137   encePairwiseOnDemand]: 164/168 looper letters, 44 selfloop transitions, 3 changer transitions 0/60 dead transitions.
[2023-10-26 08:56:36,269 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 291 flow
[2023-10-26 08:56:36,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-10-26 08:56:36,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-10-26 08:56:36,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 396 transitions.
[2023-10-26 08:56:36,271 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5892857142857143
[2023-10-26 08:56:36,271 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 396 transitions.
[2023-10-26 08:56:36,271 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 396 transitions.
[2023-10-26 08:56:36,272 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:36,272 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 396 transitions.
[2023-10-26 08:56:36,273 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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)
[2023-10-26 08:56:36,274 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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)
[2023-10-26 08:56:36,274 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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)
[2023-10-26 08:56:36,274 INFO  L175             Difference]: Start difference. First operand has 46 places, 42 transitions, 147 flow. Second operand 4 states and 396 transitions.
[2023-10-26 08:56:36,275 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 291 flow
[2023-10-26 08:56:36,289 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:56:36,290 INFO  L231             Difference]: Finished difference. Result has 49 places, 43 transitions, 158 flow
[2023-10-26 08:56:36,290 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=49, PETRI_TRANSITIONS=43}
[2023-10-26 08:56:36,293 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places.
[2023-10-26 08:56:36,293 INFO  L495      AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 158 flow
[2023-10-26 08:56:36,293 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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)
[2023-10-26 08:56:36,293 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:36,293 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:36,293 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-10-26 08:56:36,293 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:56:36,294 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:36,294 INFO  L85        PathProgramCache]: Analyzing trace with hash 1458128080, now seen corresponding path program 1 times
[2023-10-26 08:56:36,294 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:36,294 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471418044]
[2023-10-26 08:56:36,294 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:36,294 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:36,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:36,334 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-26 08:56:36,334 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:36,334 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471418044]
[2023-10-26 08:56:36,334 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471418044] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:36,335 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:36,335 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:36,335 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921042430]
[2023-10-26 08:56:36,335 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:36,335 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:36,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:36,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:36,336 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:36,349 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 85 out of 168
[2023-10-26 08:56:36,351 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 158 flow. Second operand  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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)
[2023-10-26 08:56:36,351 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:36,351 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 168
[2023-10-26 08:56:36,351 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:37,318 INFO  L130       PetriNetUnfolder]: 5570/9148 cut-off events.
[2023-10-26 08:56:37,337 INFO  L131       PetriNetUnfolder]: For 4659/4832 co-relation queries the response was YES.
[2023-10-26 08:56:37,349 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 21462 conditions, 9148 events. 5570/9148 cut-off events. For 4659/4832 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 58817 event pairs, 3584 based on Foata normal form. 0/8675 useless extension candidates. Maximal degree in co-relation 8932. Up to 6345 conditions per place. 
[2023-10-26 08:56:37,574 INFO  L137   encePairwiseOnDemand]: 161/168 looper letters, 49 selfloop transitions, 9 changer transitions 0/67 dead transitions.
[2023-10-26 08:56:37,575 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 360 flow
[2023-10-26 08:56:37,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:37,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:37,576 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions.
[2023-10-26 08:56:37,576 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6071428571428571
[2023-10-26 08:56:37,577 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 306 transitions.
[2023-10-26 08:56:37,577 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions.
[2023-10-26 08:56:37,577 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:37,577 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions.
[2023-10-26 08:56:37,578 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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)
[2023-10-26 08:56:37,585 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:37,585 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:37,585 INFO  L175             Difference]: Start difference. First operand has 49 places, 43 transitions, 158 flow. Second operand 3 states and 306 transitions.
[2023-10-26 08:56:37,585 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 360 flow
[2023-10-26 08:56:37,595 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:56:37,607 INFO  L231             Difference]: Finished difference. Result has 51 places, 50 transitions, 234 flow
[2023-10-26 08:56:37,607 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=51, PETRI_TRANSITIONS=50}
[2023-10-26 08:56:37,608 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places.
[2023-10-26 08:56:37,608 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 234 flow
[2023-10-26 08:56:37,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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)
[2023-10-26 08:56:37,608 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:37,609 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:37,609 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-10-26 08:56:37,609 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:56:37,609 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:37,609 INFO  L85        PathProgramCache]: Analyzing trace with hash 758787877, now seen corresponding path program 1 times
[2023-10-26 08:56:37,610 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:37,610 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027209650]
[2023-10-26 08:56:37,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:37,611 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:37,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:37,727 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:56:37,734 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:37,735 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027209650]
[2023-10-26 08:56:37,735 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027209650] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:37,735 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:37,735 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:56:37,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654986617]
[2023-10-26 08:56:37,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:37,736 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:37,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:37,736 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:37,736 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:37,748 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 86 out of 168
[2023-10-26 08:56:37,749 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 234 flow. Second operand  has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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)
[2023-10-26 08:56:37,749 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:37,749 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 168
[2023-10-26 08:56:37,749 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:37,944 INFO  L130       PetriNetUnfolder]: 597/1538 cut-off events.
[2023-10-26 08:56:37,945 INFO  L131       PetriNetUnfolder]: For 1066/1084 co-relation queries the response was YES.
[2023-10-26 08:56:37,955 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4020 conditions, 1538 events. 597/1538 cut-off events. For 1066/1084 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 10684 event pairs, 59 based on Foata normal form. 300/1765 useless extension candidates. Maximal degree in co-relation 1509. Up to 905 conditions per place. 
[2023-10-26 08:56:37,972 INFO  L137   encePairwiseOnDemand]: 162/168 looper letters, 36 selfloop transitions, 7 changer transitions 0/56 dead transitions.
[2023-10-26 08:56:37,972 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 56 transitions, 331 flow
[2023-10-26 08:56:37,972 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:37,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:37,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions.
[2023-10-26 08:56:37,974 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5892857142857143
[2023-10-26 08:56:37,974 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 297 transitions.
[2023-10-26 08:56:37,974 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions.
[2023-10-26 08:56:37,974 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:37,974 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions.
[2023-10-26 08:56:37,975 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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)
[2023-10-26 08:56:37,976 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:37,976 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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)
[2023-10-26 08:56:37,976 INFO  L175             Difference]: Start difference. First operand has 51 places, 50 transitions, 234 flow. Second operand 3 states and 297 transitions.
[2023-10-26 08:56:37,976 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 56 transitions, 331 flow
[2023-10-26 08:56:37,990 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 56 transitions, 319 flow, removed 2 selfloop flow, removed 2 redundant places.
[2023-10-26 08:56:37,991 INFO  L231             Difference]: Finished difference. Result has 51 places, 44 transitions, 188 flow
[2023-10-26 08:56:37,992 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=51, PETRI_TRANSITIONS=44}
[2023-10-26 08:56:37,993 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places.
[2023-10-26 08:56:37,993 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 188 flow
[2023-10-26 08:56:37,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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)
[2023-10-26 08:56:37,993 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:37,993 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-10-26 08:56:37,993 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-10-26 08:56:37,993 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:56:37,994 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:37,994 INFO  L85        PathProgramCache]: Analyzing trace with hash 1193880284, now seen corresponding path program 1 times
[2023-10-26 08:56:37,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:37,994 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772107302]
[2023-10-26 08:56:37,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:37,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:38,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:56:38,021 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:56:38,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:56:38,039 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:56:38,039 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:56:38,039 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining)
[2023-10-26 08:56:38,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining)
[2023-10-26 08:56:38,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining)
[2023-10-26 08:56:38,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining)
[2023-10-26 08:56:38,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining)
[2023-10-26 08:56:38,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining)
[2023-10-26 08:56:38,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining)
[2023-10-26 08:56:38,041 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-10-26 08:56:38,041 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:38,041 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:56:38,041 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-10-26 08:56:38,077 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-10-26 08:56:38,080 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 120 places, 117 transitions, 278 flow
[2023-10-26 08:56:38,176 INFO  L130       PetriNetUnfolder]: 42/501 cut-off events.
[2023-10-26 08:56:38,177 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-26 08:56:38,191 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 556 conditions, 501 events. 42/501 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1935 event pairs, 6 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 306. Up to 32 conditions per place. 
[2023-10-26 08:56:38,191 INFO  L82        GeneralOperation]: Start removeDead. Operand has 120 places, 117 transitions, 278 flow
[2023-10-26 08:56:38,193 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 120 places, 117 transitions, 278 flow
[2023-10-26 08:56:38,194 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:56:38,194 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 117 transitions, 278 flow
[2023-10-26 08:56:38,194 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 117 transitions, 278 flow
[2023-10-26 08:56:38,194 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 120 places, 117 transitions, 278 flow
[2023-10-26 08:56:38,244 INFO  L130       PetriNetUnfolder]: 42/501 cut-off events.
[2023-10-26 08:56:38,256 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-26 08:56:38,258 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 556 conditions, 501 events. 42/501 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1935 event pairs, 6 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 306. Up to 32 conditions per place. 
[2023-10-26 08:56:38,266 INFO  L119        LiptonReduction]: Number of co-enabled transitions 6664
[2023-10-26 08:56:40,091 INFO  L134        LiptonReduction]: Checked pairs total: 16804
[2023-10-26 08:56:40,091 INFO  L136        LiptonReduction]: Total number of compositions: 75
[2023-10-26 08:56:40,092 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:56:40,092 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;@102e09c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:56:40,092 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2023-10-26 08:56:40,102 INFO  L130       PetriNetUnfolder]: 0/5 cut-off events.
[2023-10-26 08:56:40,103 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:56:40,103 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:40,103 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:56:40,103 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:56:40,103 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:40,103 INFO  L85        PathProgramCache]: Analyzing trace with hash 800324, now seen corresponding path program 1 times
[2023-10-26 08:56:40,103 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:40,103 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016437479]
[2023-10-26 08:56:40,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:40,103 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:40,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:40,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:40,148 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:40,148 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016437479]
[2023-10-26 08:56:40,148 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016437479] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:40,148 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:40,148 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:40,148 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133715102]
[2023-10-26 08:56:40,148 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:40,149 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:40,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:40,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:40,149 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:40,166 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 104 out of 192
[2023-10-26 08:56:40,166 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 136 flow. Second operand  has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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)
[2023-10-26 08:56:40,166 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:40,166 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 192
[2023-10-26 08:56:40,166 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:43,831 INFO  L130       PetriNetUnfolder]: 24683/37289 cut-off events.
[2023-10-26 08:56:43,832 INFO  L131       PetriNetUnfolder]: For 3846/3846 co-relation queries the response was YES.
[2023-10-26 08:56:43,920 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 72857 conditions, 37289 events. 24683/37289 cut-off events. For 3846/3846 co-relation queries the response was YES. Maximal size of possible extension queue 1215. Compared 266543 event pairs, 18101 based on Foata normal form. 0/34309 useless extension candidates. Maximal degree in co-relation 10581. Up to 33442 conditions per place. 
[2023-10-26 08:56:44,205 INFO  L137   encePairwiseOnDemand]: 188/192 looper letters, 36 selfloop transitions, 2 changer transitions 0/51 dead transitions.
[2023-10-26 08:56:44,209 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 222 flow
[2023-10-26 08:56:44,210 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:44,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:44,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions.
[2023-10-26 08:56:44,211 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6111111111111112
[2023-10-26 08:56:44,211 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 352 transitions.
[2023-10-26 08:56:44,212 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions.
[2023-10-26 08:56:44,212 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:44,225 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions.
[2023-10-26 08:56:44,226 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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)
[2023-10-26 08:56:44,227 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:56:44,227 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:56:44,227 INFO  L175             Difference]: Start difference. First operand has 51 places, 46 transitions, 136 flow. Second operand 3 states and 352 transitions.
[2023-10-26 08:56:44,227 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 222 flow
[2023-10-26 08:56:44,230 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:56:44,231 INFO  L231             Difference]: Finished difference. Result has 53 places, 46 transitions, 146 flow
[2023-10-26 08:56:44,231 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=53, PETRI_TRANSITIONS=46}
[2023-10-26 08:56:44,232 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places.
[2023-10-26 08:56:44,232 INFO  L495      AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 146 flow
[2023-10-26 08:56:44,232 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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)
[2023-10-26 08:56:44,232 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:44,232 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:44,232 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-10-26 08:56:44,233 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:56:44,233 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:44,233 INFO  L85        PathProgramCache]: Analyzing trace with hash 1106516575, now seen corresponding path program 1 times
[2023-10-26 08:56:44,233 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:44,233 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431116877]
[2023-10-26 08:56:44,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:44,234 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:44,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:44,263 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:56:44,264 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:44,264 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431116877]
[2023-10-26 08:56:44,264 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431116877] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:44,264 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:44,264 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:44,264 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261113980]
[2023-10-26 08:56:44,264 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:44,265 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:44,265 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:44,266 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:44,266 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:44,282 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 192
[2023-10-26 08:56:44,282 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 146 flow. Second operand  has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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)
[2023-10-26 08:56:44,282 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:44,283 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 192
[2023-10-26 08:56:44,283 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:51,580 INFO  L130       PetriNetUnfolder]: 60474/86524 cut-off events.
[2023-10-26 08:56:51,580 INFO  L131       PetriNetUnfolder]: For 12171/12171 co-relation queries the response was YES.
[2023-10-26 08:56:51,778 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 175776 conditions, 86524 events. 60474/86524 cut-off events. For 12171/12171 co-relation queries the response was YES. Maximal size of possible extension queue 2442. Compared 607233 event pairs, 42366 based on Foata normal form. 0/80211 useless extension candidates. Maximal degree in co-relation 175724. Up to 63347 conditions per place. 
[2023-10-26 08:56:52,340 INFO  L137   encePairwiseOnDemand]: 184/192 looper letters, 60 selfloop transitions, 7 changer transitions 0/76 dead transitions.
[2023-10-26 08:56:52,340 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 76 transitions, 377 flow
[2023-10-26 08:56:52,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:56:52,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:56:52,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions.
[2023-10-26 08:56:52,342 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.625
[2023-10-26 08:56:52,343 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 360 transitions.
[2023-10-26 08:56:52,343 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions.
[2023-10-26 08:56:52,343 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:52,343 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions.
[2023-10-26 08:56:52,357 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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)
[2023-10-26 08:56:52,358 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:56:52,359 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:56:52,369 INFO  L175             Difference]: Start difference. First operand has 53 places, 46 transitions, 146 flow. Second operand 3 states and 360 transitions.
[2023-10-26 08:56:52,370 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 76 transitions, 377 flow
[2023-10-26 08:56:52,373 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 76 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:56:52,378 INFO  L231             Difference]: Finished difference. Result has 56 places, 52 transitions, 198 flow
[2023-10-26 08:56:52,379 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=56, PETRI_TRANSITIONS=52}
[2023-10-26 08:56:52,379 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places.
[2023-10-26 08:56:52,379 INFO  L495      AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 198 flow
[2023-10-26 08:56:52,380 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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)
[2023-10-26 08:56:52,380 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:52,380 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:52,380 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-10-26 08:56:52,380 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:56:52,381 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:52,381 INFO  L85        PathProgramCache]: Analyzing trace with hash -212253915, now seen corresponding path program 1 times
[2023-10-26 08:56:52,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:52,381 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53774160]
[2023-10-26 08:56:52,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:52,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:52,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:52,438 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:56:52,438 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:52,438 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53774160]
[2023-10-26 08:56:52,439 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53774160] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:52,439 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:52,439 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:56:52,440 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295574744]
[2023-10-26 08:56:52,440 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:52,441 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-10-26 08:56:52,441 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:52,441 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-10-26 08:56:52,442 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-10-26 08:56:52,463 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 102 out of 192
[2023-10-26 08:56:52,464 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 198 flow. Second operand  has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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)
[2023-10-26 08:56:52,464 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:52,464 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 192
[2023-10-26 08:56:52,464 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:56:56,908 INFO  L130       PetriNetUnfolder]: 38334/57310 cut-off events.
[2023-10-26 08:56:56,909 INFO  L131       PetriNetUnfolder]: For 26058/31476 co-relation queries the response was YES.
[2023-10-26 08:56:57,169 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 133333 conditions, 57310 events. 38334/57310 cut-off events. For 26058/31476 co-relation queries the response was YES. Maximal size of possible extension queue 1672. Compared 426369 event pairs, 21787 based on Foata normal form. 3440/57900 useless extension candidates. Maximal degree in co-relation 40685. Up to 34292 conditions per place. 
[2023-10-26 08:56:57,349 INFO  L137   encePairwiseOnDemand]: 188/192 looper letters, 61 selfloop transitions, 3 changer transitions 0/78 dead transitions.
[2023-10-26 08:56:57,350 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 78 transitions, 408 flow
[2023-10-26 08:56:57,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-10-26 08:56:57,350 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-10-26 08:56:57,357 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 465 transitions.
[2023-10-26 08:56:57,358 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.60546875
[2023-10-26 08:56:57,358 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 465 transitions.
[2023-10-26 08:56:57,359 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 465 transitions.
[2023-10-26 08:56:57,368 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:56:57,368 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 465 transitions.
[2023-10-26 08:56:57,369 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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)
[2023-10-26 08:56:57,374 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 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)
[2023-10-26 08:56:57,375 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 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)
[2023-10-26 08:56:57,375 INFO  L175             Difference]: Start difference. First operand has 56 places, 52 transitions, 198 flow. Second operand 4 states and 465 transitions.
[2023-10-26 08:56:57,375 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 78 transitions, 408 flow
[2023-10-26 08:56:57,497 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 78 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:56:57,501 INFO  L231             Difference]: Finished difference. Result has 58 places, 53 transitions, 200 flow
[2023-10-26 08:56:57,501 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=58, PETRI_TRANSITIONS=53}
[2023-10-26 08:56:57,503 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places.
[2023-10-26 08:56:57,503 INFO  L495      AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 200 flow
[2023-10-26 08:56:57,504 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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)
[2023-10-26 08:56:57,504 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:56:57,504 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:56:57,504 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-10-26 08:56:57,518 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:56:57,518 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:56:57,518 INFO  L85        PathProgramCache]: Analyzing trace with hash -331384400, now seen corresponding path program 1 times
[2023-10-26 08:56:57,518 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:56:57,518 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298161540]
[2023-10-26 08:56:57,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:56:57,519 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:56:57,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:56:57,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-26 08:56:57,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:56:57,555 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298161540]
[2023-10-26 08:56:57,555 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298161540] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:56:57,555 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:56:57,556 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:56:57,556 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205608564]
[2023-10-26 08:56:57,556 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:56:57,556 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:56:57,556 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:56:57,556 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:56:57,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:56:57,587 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 192
[2023-10-26 08:56:57,587 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 200 flow. Second operand  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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)
[2023-10-26 08:56:57,587 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:56:57,587 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 192
[2023-10-26 08:56:57,588 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:03,870 INFO  L130       PetriNetUnfolder]: 57579/84704 cut-off events.
[2023-10-26 08:57:03,870 INFO  L131       PetriNetUnfolder]: For 41510/43076 co-relation queries the response was YES.
[2023-10-26 08:57:04,081 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 200941 conditions, 84704 events. 57579/84704 cut-off events. For 41510/43076 co-relation queries the response was YES. Maximal size of possible extension queue 2210. Compared 616654 event pairs, 43300 based on Foata normal form. 13/80715 useless extension candidates. Maximal degree in co-relation 77115. Up to 69982 conditions per place. 
[2023-10-26 08:57:04,464 INFO  L137   encePairwiseOnDemand]: 185/192 looper letters, 64 selfloop transitions, 10 changer transitions 0/84 dead transitions.
[2023-10-26 08:57:04,464 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 84 transitions, 466 flow
[2023-10-26 08:57:04,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:57:04,465 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:57:04,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions.
[2023-10-26 08:57:04,466 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6215277777777778
[2023-10-26 08:57:04,466 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 358 transitions.
[2023-10-26 08:57:04,467 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions.
[2023-10-26 08:57:04,467 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:04,467 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions.
[2023-10-26 08:57:04,468 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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)
[2023-10-26 08:57:04,469 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:04,469 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:04,469 INFO  L175             Difference]: Start difference. First operand has 58 places, 53 transitions, 200 flow. Second operand 3 states and 358 transitions.
[2023-10-26 08:57:04,469 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 84 transitions, 466 flow
[2023-10-26 08:57:04,776 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:57:04,777 INFO  L231             Difference]: Finished difference. Result has 59 places, 61 transitions, 278 flow
[2023-10-26 08:57:04,777 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=59, PETRI_TRANSITIONS=61}
[2023-10-26 08:57:04,777 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places.
[2023-10-26 08:57:04,778 INFO  L495      AbstractCegarLoop]: Abstraction has has 59 places, 61 transitions, 278 flow
[2023-10-26 08:57:04,778 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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)
[2023-10-26 08:57:04,778 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:04,778 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:04,778 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-10-26 08:57:04,779 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:04,779 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:04,779 INFO  L85        PathProgramCache]: Analyzing trace with hash -1115597400, now seen corresponding path program 1 times
[2023-10-26 08:57:04,779 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:04,779 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129343439]
[2023-10-26 08:57:04,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:04,780 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:04,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:04,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:57:04,875 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:04,875 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129343439]
[2023-10-26 08:57:04,875 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129343439] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:57:04,876 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:57:04,876 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:57:04,876 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268421584]
[2023-10-26 08:57:04,876 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:57:04,876 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:57:04,876 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:04,877 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:57:04,877 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:57:04,890 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 192
[2023-10-26 08:57:04,891 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 61 transitions, 278 flow. Second operand  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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)
[2023-10-26 08:57:04,891 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:04,897 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 192
[2023-10-26 08:57:04,897 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:05,316 INFO  L130       PetriNetUnfolder]: 2527/6028 cut-off events.
[2023-10-26 08:57:05,317 INFO  L131       PetriNetUnfolder]: For 4664/4747 co-relation queries the response was YES.
[2023-10-26 08:57:05,325 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 15416 conditions, 6028 events. 2527/6028 cut-off events. For 4664/4747 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 53051 event pairs, 222 based on Foata normal form. 1888/7602 useless extension candidates. Maximal degree in co-relation 5671. Up to 3800 conditions per place. 
[2023-10-26 08:57:05,334 INFO  L137   encePairwiseOnDemand]: 184/192 looper letters, 43 selfloop transitions, 9 changer transitions 0/66 dead transitions.
[2023-10-26 08:57:05,334 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 394 flow
[2023-10-26 08:57:05,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:57:05,335 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:57:05,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions.
[2023-10-26 08:57:05,336 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5954861111111112
[2023-10-26 08:57:05,336 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 343 transitions.
[2023-10-26 08:57:05,336 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions.
[2023-10-26 08:57:05,336 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:05,336 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions.
[2023-10-26 08:57:05,337 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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)
[2023-10-26 08:57:05,362 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:05,363 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:05,363 INFO  L175             Difference]: Start difference. First operand has 59 places, 61 transitions, 278 flow. Second operand 3 states and 343 transitions.
[2023-10-26 08:57:05,363 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 394 flow
[2023-10-26 08:57:05,389 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 387 flow, removed 2 selfloop flow, removed 1 redundant places.
[2023-10-26 08:57:05,391 INFO  L231             Difference]: Finished difference. Result has 60 places, 52 transitions, 226 flow
[2023-10-26 08:57:05,391 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=60, PETRI_TRANSITIONS=52}
[2023-10-26 08:57:05,392 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places.
[2023-10-26 08:57:05,392 INFO  L495      AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 226 flow
[2023-10-26 08:57:05,392 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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)
[2023-10-26 08:57:05,392 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:05,392 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:05,392 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-10-26 08:57:05,392 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:05,393 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:05,393 INFO  L85        PathProgramCache]: Analyzing trace with hash 1876298133, now seen corresponding path program 1 times
[2023-10-26 08:57:05,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:05,393 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852332785]
[2023-10-26 08:57:05,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:05,393 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:05,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:05,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-10-26 08:57:05,429 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:05,429 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852332785]
[2023-10-26 08:57:05,429 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852332785] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:57:05,429 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:57:05,429 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:57:05,430 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200053914]
[2023-10-26 08:57:05,430 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:57:05,430 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:57:05,430 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:05,430 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:57:05,431 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:57:05,462 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 192
[2023-10-26 08:57:05,463 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 226 flow. Second operand  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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)
[2023-10-26 08:57:05,463 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:05,463 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 192
[2023-10-26 08:57:05,463 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:06,266 INFO  L130       PetriNetUnfolder]: 3015/7284 cut-off events.
[2023-10-26 08:57:06,266 INFO  L131       PetriNetUnfolder]: For 6022/6152 co-relation queries the response was YES.
[2023-10-26 08:57:06,279 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19234 conditions, 7284 events. 3015/7284 cut-off events. For 6022/6152 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 63661 event pairs, 2646 based on Foata normal form. 0/6889 useless extension candidates. Maximal degree in co-relation 4922. Up to 5565 conditions per place. 
[2023-10-26 08:57:06,306 INFO  L137   encePairwiseOnDemand]: 188/192 looper letters, 50 selfloop transitions, 3 changer transitions 0/63 dead transitions.
[2023-10-26 08:57:06,321 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 63 transitions, 384 flow
[2023-10-26 08:57:06,322 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:57:06,322 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:57:06,322 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions.
[2023-10-26 08:57:06,322 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.59375
[2023-10-26 08:57:06,323 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 342 transitions.
[2023-10-26 08:57:06,323 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions.
[2023-10-26 08:57:06,323 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:06,323 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions.
[2023-10-26 08:57:06,324 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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)
[2023-10-26 08:57:06,325 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:06,325 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:06,326 INFO  L175             Difference]: Start difference. First operand has 60 places, 52 transitions, 226 flow. Second operand 3 states and 342 transitions.
[2023-10-26 08:57:06,326 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 63 transitions, 384 flow
[2023-10-26 08:57:06,332 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 63 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:57:06,333 INFO  L231             Difference]: Finished difference. Result has 62 places, 54 transitions, 242 flow
[2023-10-26 08:57:06,333 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=62, PETRI_TRANSITIONS=54}
[2023-10-26 08:57:06,334 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places.
[2023-10-26 08:57:06,334 INFO  L495      AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 242 flow
[2023-10-26 08:57:06,334 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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)
[2023-10-26 08:57:06,334 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:06,335 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:06,335 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-10-26 08:57:06,335 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:06,337 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:06,337 INFO  L85        PathProgramCache]: Analyzing trace with hash -80043298, now seen corresponding path program 1 times
[2023-10-26 08:57:06,337 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:06,337 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634687612]
[2023-10-26 08:57:06,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:06,338 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:06,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:06,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-26 08:57:06,403 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:06,403 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634687612]
[2023-10-26 08:57:06,403 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634687612] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:57:06,403 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:57:06,403 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:57:06,403 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618518959]
[2023-10-26 08:57:06,403 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:57:06,404 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:57:06,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:06,404 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:57:06,404 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:57:06,419 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 192
[2023-10-26 08:57:06,420 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 242 flow. Second operand  has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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)
[2023-10-26 08:57:06,420 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:06,420 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 192
[2023-10-26 08:57:06,420 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:07,026 INFO  L130       PetriNetUnfolder]: 4287/9592 cut-off events.
[2023-10-26 08:57:07,027 INFO  L131       PetriNetUnfolder]: For 8855/8972 co-relation queries the response was YES.
[2023-10-26 08:57:07,043 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 26109 conditions, 9592 events. 4287/9592 cut-off events. For 8855/8972 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 82167 event pairs, 2429 based on Foata normal form. 0/9269 useless extension candidates. Maximal degree in co-relation 9272. Up to 6045 conditions per place. 
[2023-10-26 08:57:07,059 INFO  L137   encePairwiseOnDemand]: 185/192 looper letters, 58 selfloop transitions, 9 changer transitions 0/76 dead transitions.
[2023-10-26 08:57:07,060 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 76 transitions, 456 flow
[2023-10-26 08:57:07,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:57:07,060 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:57:07,074 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions.
[2023-10-26 08:57:07,075 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.625
[2023-10-26 08:57:07,075 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 360 transitions.
[2023-10-26 08:57:07,075 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions.
[2023-10-26 08:57:07,075 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:07,075 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions.
[2023-10-26 08:57:07,076 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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)
[2023-10-26 08:57:07,079 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:07,080 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:07,080 INFO  L175             Difference]: Start difference. First operand has 62 places, 54 transitions, 242 flow. Second operand 3 states and 360 transitions.
[2023-10-26 08:57:07,080 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 76 transitions, 456 flow
[2023-10-26 08:57:07,104 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 447 flow, removed 2 selfloop flow, removed 1 redundant places.
[2023-10-26 08:57:07,106 INFO  L231             Difference]: Finished difference. Result has 65 places, 59 transitions, 311 flow
[2023-10-26 08:57:07,106 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=65, PETRI_TRANSITIONS=59}
[2023-10-26 08:57:07,107 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 14 predicate places.
[2023-10-26 08:57:07,107 INFO  L495      AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 311 flow
[2023-10-26 08:57:07,107 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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)
[2023-10-26 08:57:07,107 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:07,107 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:07,107 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-10-26 08:57:07,107 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:07,108 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:07,108 INFO  L85        PathProgramCache]: Analyzing trace with hash -578804479, now seen corresponding path program 1 times
[2023-10-26 08:57:07,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:07,109 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408405235]
[2023-10-26 08:57:07,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:07,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:07,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:07,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:07,222 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:07,222 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408405235]
[2023-10-26 08:57:07,222 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408405235] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:57:07,222 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781461479]
[2023-10-26 08:57:07,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:07,226 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:57:07,226 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:57:07,243 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:57:07,289 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-10-26 08:57:07,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:07,381 INFO  L263         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-10-26 08:57:07,383 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:57:07,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:07,653 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-10-26 08:57:07,653 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [781461479] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:57:07,653 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-10-26 08:57:07,653 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11
[2023-10-26 08:57:07,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328498146]
[2023-10-26 08:57:07,654 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:57:07,654 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-10-26 08:57:07,665 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:07,665 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-10-26 08:57:07,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2023-10-26 08:57:07,731 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 103 out of 192
[2023-10-26 08:57:07,731 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 311 flow. Second operand  has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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)
[2023-10-26 08:57:07,731 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:07,732 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 192
[2023-10-26 08:57:07,732 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:08,884 INFO  L130       PetriNetUnfolder]: 3360/8640 cut-off events.
[2023-10-26 08:57:08,885 INFO  L131       PetriNetUnfolder]: For 11492/12199 co-relation queries the response was YES.
[2023-10-26 08:57:08,899 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 24433 conditions, 8640 events. 3360/8640 cut-off events. For 11492/12199 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 79798 event pairs, 496 based on Foata normal form. 482/8986 useless extension candidates. Maximal degree in co-relation 10397. Up to 4963 conditions per place. 
[2023-10-26 08:57:08,910 INFO  L137   encePairwiseOnDemand]: 189/192 looper letters, 104 selfloop transitions, 5 changer transitions 8/134 dead transitions.
[2023-10-26 08:57:08,910 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 134 transitions, 865 flow
[2023-10-26 08:57:08,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-10-26 08:57:08,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-10-26 08:57:08,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 819 transitions.
[2023-10-26 08:57:08,912 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.609375
[2023-10-26 08:57:08,912 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 819 transitions.
[2023-10-26 08:57:08,912 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 819 transitions.
[2023-10-26 08:57:08,913 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:08,913 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 819 transitions.
[2023-10-26 08:57:08,914 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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)
[2023-10-26 08:57:08,926 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 192.0) internal successors, (1536), 8 states have internal predecessors, (1536), 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)
[2023-10-26 08:57:08,926 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 192.0) internal successors, (1536), 8 states have internal predecessors, (1536), 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)
[2023-10-26 08:57:08,926 INFO  L175             Difference]: Start difference. First operand has 65 places, 59 transitions, 311 flow. Second operand 7 states and 819 transitions.
[2023-10-26 08:57:08,927 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 134 transitions, 865 flow
[2023-10-26 08:57:08,995 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 134 transitions, 827 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-10-26 08:57:08,997 INFO  L231             Difference]: Finished difference. Result has 67 places, 60 transitions, 300 flow
[2023-10-26 08:57:08,997 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=300, PETRI_PLACES=67, PETRI_TRANSITIONS=60}
[2023-10-26 08:57:08,998 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 16 predicate places.
[2023-10-26 08:57:08,998 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 300 flow
[2023-10-26 08:57:08,998 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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)
[2023-10-26 08:57:08,998 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:08,999 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:09,005 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-10-26 08:57:09,203 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20
[2023-10-26 08:57:09,204 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:09,204 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:09,204 INFO  L85        PathProgramCache]: Analyzing trace with hash -573613133, now seen corresponding path program 1 times
[2023-10-26 08:57:09,205 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:09,205 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022722801]
[2023-10-26 08:57:09,205 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:09,206 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:09,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:09,273 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-10-26 08:57:09,273 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:09,273 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022722801]
[2023-10-26 08:57:09,274 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022722801] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:57:09,274 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:57:09,274 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:57:09,275 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248853516]
[2023-10-26 08:57:09,275 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:57:09,275 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:57:09,275 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:09,276 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:57:09,276 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:57:09,298 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 192
[2023-10-26 08:57:09,298 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 300 flow. Second operand  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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)
[2023-10-26 08:57:09,298 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:09,298 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 192
[2023-10-26 08:57:09,298 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:10,362 INFO  L130       PetriNetUnfolder]: 3905/9449 cut-off events.
[2023-10-26 08:57:10,363 INFO  L131       PetriNetUnfolder]: For 12716/12924 co-relation queries the response was YES.
[2023-10-26 08:57:10,377 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 27511 conditions, 9449 events. 3905/9449 cut-off events. For 12716/12924 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 86695 event pairs, 2981 based on Foata normal form. 0/9159 useless extension candidates. Maximal degree in co-relation 5967. Up to 7702 conditions per place. 
[2023-10-26 08:57:10,389 INFO  L137   encePairwiseOnDemand]: 188/192 looper letters, 54 selfloop transitions, 4 changer transitions 1/69 dead transitions.
[2023-10-26 08:57:10,389 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 69 transitions, 464 flow
[2023-10-26 08:57:10,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:57:10,390 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:57:10,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions.
[2023-10-26 08:57:10,400 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5902777777777778
[2023-10-26 08:57:10,400 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 340 transitions.
[2023-10-26 08:57:10,400 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions.
[2023-10-26 08:57:10,400 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:10,401 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions.
[2023-10-26 08:57:10,409 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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)
[2023-10-26 08:57:10,410 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:10,410 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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)
[2023-10-26 08:57:10,410 INFO  L175             Difference]: Start difference. First operand has 67 places, 60 transitions, 300 flow. Second operand 3 states and 340 transitions.
[2023-10-26 08:57:10,410 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 69 transitions, 464 flow
[2023-10-26 08:57:10,416 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 69 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:57:10,421 INFO  L231             Difference]: Finished difference. Result has 68 places, 62 transitions, 329 flow
[2023-10-26 08:57:10,421 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=68, PETRI_TRANSITIONS=62}
[2023-10-26 08:57:10,421 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places.
[2023-10-26 08:57:10,430 INFO  L495      AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 329 flow
[2023-10-26 08:57:10,430 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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)
[2023-10-26 08:57:10,430 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:10,431 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:10,431 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-10-26 08:57:10,431 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:10,431 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:10,431 INFO  L85        PathProgramCache]: Analyzing trace with hash -1073911570, now seen corresponding path program 1 times
[2023-10-26 08:57:10,431 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:10,432 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498291838]
[2023-10-26 08:57:10,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:10,432 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:10,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:10,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-10-26 08:57:10,541 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:10,541 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498291838]
[2023-10-26 08:57:10,542 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498291838] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:57:10,542 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988067168]
[2023-10-26 08:57:10,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:10,542 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:57:10,542 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:57:10,558 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:57:10,593 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-10-26 08:57:10,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:10,687 INFO  L263         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-10-26 08:57:10,689 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:57:10,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:57:10,785 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-26 08:57:10,846 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:57:10,846 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [988067168] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-26 08:57:10,846 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-26 08:57:10,847 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10
[2023-10-26 08:57:10,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206723932]
[2023-10-26 08:57:10,848 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-26 08:57:10,848 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-10-26 08:57:10,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:10,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-10-26 08:57:10,849 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2023-10-26 08:57:10,943 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 192
[2023-10-26 08:57:10,944 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 329 flow. Second operand  has 11 states, 11 states have (on average 102.0) internal successors, (1122), 11 states have internal predecessors, (1122), 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)
[2023-10-26 08:57:10,944 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:10,944 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 192
[2023-10-26 08:57:10,945 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:11,774 INFO  L130       PetriNetUnfolder]: 2229/5093 cut-off events.
[2023-10-26 08:57:11,774 INFO  L131       PetriNetUnfolder]: For 7932/8466 co-relation queries the response was YES.
[2023-10-26 08:57:11,784 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 14371 conditions, 5093 events. 2229/5093 cut-off events. For 7932/8466 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 38021 event pairs, 94 based on Foata normal form. 586/5594 useless extension candidates. Maximal degree in co-relation 5145. Up to 1849 conditions per place. 
[2023-10-26 08:57:11,792 INFO  L137   encePairwiseOnDemand]: 187/192 looper letters, 128 selfloop transitions, 8 changer transitions 0/151 dead transitions.
[2023-10-26 08:57:11,792 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 151 transitions, 921 flow
[2023-10-26 08:57:11,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-10-26 08:57:11,793 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2023-10-26 08:57:11,794 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1012 transitions.
[2023-10-26 08:57:11,794 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5856481481481481
[2023-10-26 08:57:11,794 INFO  L72            ComplementDD]: Start complementDD. Operand 9 states and 1012 transitions.
[2023-10-26 08:57:11,795 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 9 states and 1012 transitions.
[2023-10-26 08:57:11,795 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:11,795 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1012 transitions.
[2023-10-26 08:57:11,805 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 10 states, 9 states have (on average 112.44444444444444) internal successors, (1012), 9 states have internal predecessors, (1012), 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)
[2023-10-26 08:57:11,807 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 10 states, 10 states have (on average 192.0) internal successors, (1920), 10 states have internal predecessors, (1920), 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)
[2023-10-26 08:57:11,807 INFO  L81            ComplementDD]: Finished complementDD. Result  has 10 states, 10 states have (on average 192.0) internal successors, (1920), 10 states have internal predecessors, (1920), 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)
[2023-10-26 08:57:11,808 INFO  L175             Difference]: Start difference. First operand has 68 places, 62 transitions, 329 flow. Second operand 9 states and 1012 transitions.
[2023-10-26 08:57:11,808 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 151 transitions, 921 flow
[2023-10-26 08:57:11,818 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 151 transitions, 899 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-10-26 08:57:11,820 INFO  L231             Difference]: Finished difference. Result has 76 places, 63 transitions, 347 flow
[2023-10-26 08:57:11,820 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=347, PETRI_PLACES=76, PETRI_TRANSITIONS=63}
[2023-10-26 08:57:11,821 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 25 predicate places.
[2023-10-26 08:57:11,821 INFO  L495      AbstractCegarLoop]: Abstraction has has 76 places, 63 transitions, 347 flow
[2023-10-26 08:57:11,825 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 102.0) internal successors, (1122), 11 states have internal predecessors, (1122), 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)
[2023-10-26 08:57:11,826 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:11,826 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:11,832 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-10-26 08:57:12,030 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:57:12,030 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:12,031 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:12,031 INFO  L85        PathProgramCache]: Analyzing trace with hash 331255352, now seen corresponding path program 1 times
[2023-10-26 08:57:12,032 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:12,032 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345427165]
[2023-10-26 08:57:12,032 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:12,032 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:12,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:13,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:13,538 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:13,538 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345427165]
[2023-10-26 08:57:13,538 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345427165] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:57:13,538 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015249790]
[2023-10-26 08:57:13,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:13,538 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:57:13,539 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:57:13,539 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:57:13,581 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-10-26 08:57:13,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:13,703 INFO  L263         TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-10-26 08:57:13,705 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:57:13,975 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2023-10-26 08:57:14,127 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-10-26 08:57:14,128 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37
[2023-10-26 08:57:14,249 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14
[2023-10-26 08:57:14,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:14,305 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-26 08:57:15,655 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93
[2023-10-26 08:57:15,662 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 357
[2023-10-26 08:57:15,854 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93
[2023-10-26 08:57:15,861 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 164
[2023-10-26 08:57:17,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:17,146 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015249790] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-26 08:57:17,146 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-26 08:57:17,146 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31
[2023-10-26 08:57:17,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520861980]
[2023-10-26 08:57:17,147 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-26 08:57:17,148 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 32 states
[2023-10-26 08:57:17,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:17,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants.
[2023-10-26 08:57:17,150 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=879, Unknown=0, NotChecked=0, Total=992
[2023-10-26 08:57:21,257 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 93 out of 192
[2023-10-26 08:57:21,259 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 63 transitions, 347 flow. Second operand  has 32 states, 32 states have (on average 95.96875) internal successors, (3071), 32 states have internal predecessors, (3071), 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)
[2023-10-26 08:57:21,259 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:21,259 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 192
[2023-10-26 08:57:21,259 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:24,066 INFO  L130       PetriNetUnfolder]: 2703/5719 cut-off events.
[2023-10-26 08:57:24,066 INFO  L131       PetriNetUnfolder]: For 6879/7328 co-relation queries the response was YES.
[2023-10-26 08:57:24,075 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 16959 conditions, 5719 events. 2703/5719 cut-off events. For 6879/7328 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 40755 event pairs, 454 based on Foata normal form. 407/6058 useless extension candidates. Maximal degree in co-relation 7406. Up to 1935 conditions per place. 
[2023-10-26 08:57:24,084 INFO  L137   encePairwiseOnDemand]: 181/192 looper letters, 152 selfloop transitions, 14 changer transitions 23/202 dead transitions.
[2023-10-26 08:57:24,084 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 202 transitions, 1211 flow
[2023-10-26 08:57:24,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-10-26 08:57:24,085 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2023-10-26 08:57:24,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1383 transitions.
[2023-10-26 08:57:24,087 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5540865384615384
[2023-10-26 08:57:24,087 INFO  L72            ComplementDD]: Start complementDD. Operand 13 states and 1383 transitions.
[2023-10-26 08:57:24,087 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 13 states and 1383 transitions.
[2023-10-26 08:57:24,088 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:24,088 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1383 transitions.
[2023-10-26 08:57:24,105 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 14 states, 13 states have (on average 106.38461538461539) internal successors, (1383), 13 states have internal predecessors, (1383), 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)
[2023-10-26 08:57:24,108 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 14 states, 14 states have (on average 192.0) internal successors, (2688), 14 states have internal predecessors, (2688), 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)
[2023-10-26 08:57:24,108 INFO  L81            ComplementDD]: Finished complementDD. Result  has 14 states, 14 states have (on average 192.0) internal successors, (2688), 14 states have internal predecessors, (2688), 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)
[2023-10-26 08:57:24,115 INFO  L175             Difference]: Start difference. First operand has 76 places, 63 transitions, 347 flow. Second operand 13 states and 1383 transitions.
[2023-10-26 08:57:24,115 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 202 transitions, 1211 flow
[2023-10-26 08:57:24,140 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 202 transitions, 1194 flow, removed 2 selfloop flow, removed 7 redundant places.
[2023-10-26 08:57:24,142 INFO  L231             Difference]: Finished difference. Result has 86 places, 68 transitions, 396 flow
[2023-10-26 08:57:24,142 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=396, PETRI_PLACES=86, PETRI_TRANSITIONS=68}
[2023-10-26 08:57:24,142 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 35 predicate places.
[2023-10-26 08:57:24,142 INFO  L495      AbstractCegarLoop]: Abstraction has has 86 places, 68 transitions, 396 flow
[2023-10-26 08:57:24,143 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 32 states, 32 states have (on average 95.96875) internal successors, (3071), 32 states have internal predecessors, (3071), 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)
[2023-10-26 08:57:24,143 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:24,143 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:24,164 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-10-26 08:57:24,347 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2023-10-26 08:57:24,347 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:24,348 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:24,348 INFO  L85        PathProgramCache]: Analyzing trace with hash 1880617726, now seen corresponding path program 2 times
[2023-10-26 08:57:24,348 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:24,348 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801816129]
[2023-10-26 08:57:24,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:24,348 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:24,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:57:25,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:25,562 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:57:25,562 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801816129]
[2023-10-26 08:57:25,562 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801816129] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:57:25,562 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113198303]
[2023-10-26 08:57:25,562 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-10-26 08:57:25,562 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:57:25,562 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:57:25,573 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:57:25,616 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-10-26 08:57:25,727 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-10-26 08:57:25,727 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-10-26 08:57:25,738 INFO  L263         TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 35 conjunts are in the unsatisfiable core
[2023-10-26 08:57:25,741 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:57:26,017 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2023-10-26 08:57:26,149 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-10-26 08:57:26,150 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37
[2023-10-26 08:57:26,277 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14
[2023-10-26 08:57:26,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:26,320 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-26 08:57:27,371 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93
[2023-10-26 08:57:27,376 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 164
[2023-10-26 08:57:27,524 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 93
[2023-10-26 08:57:27,529 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 357
[2023-10-26 08:57:29,317 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:57:29,317 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113198303] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-26 08:57:29,317 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-26 08:57:29,317 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 34
[2023-10-26 08:57:29,317 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500309174]
[2023-10-26 08:57:29,318 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-26 08:57:29,318 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2023-10-26 08:57:29,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:57:29,319 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2023-10-26 08:57:29,319 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1064, Unknown=0, NotChecked=0, Total=1190
[2023-10-26 08:57:34,095 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 93 out of 192
[2023-10-26 08:57:34,097 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 68 transitions, 396 flow. Second operand  has 35 states, 35 states have (on average 95.71428571428571) internal successors, (3350), 35 states have internal predecessors, (3350), 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)
[2023-10-26 08:57:34,097 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:57:34,097 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 192
[2023-10-26 08:57:34,097 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:57:36,527 INFO  L130       PetriNetUnfolder]: 2514/5340 cut-off events.
[2023-10-26 08:57:36,528 INFO  L131       PetriNetUnfolder]: For 7683/8114 co-relation queries the response was YES.
[2023-10-26 08:57:36,548 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 17607 conditions, 5340 events. 2514/5340 cut-off events. For 7683/8114 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 37453 event pairs, 426 based on Foata normal form. 397/5679 useless extension candidates. Maximal degree in co-relation 7983. Up to 1784 conditions per place. 
[2023-10-26 08:57:36,627 INFO  L137   encePairwiseOnDemand]: 181/192 looper letters, 142 selfloop transitions, 15 changer transitions 23/193 dead transitions.
[2023-10-26 08:57:36,627 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 193 transitions, 1211 flow
[2023-10-26 08:57:36,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-10-26 08:57:36,628 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2023-10-26 08:57:36,629 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1467 transitions.
[2023-10-26 08:57:36,631 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5457589285714286
[2023-10-26 08:57:36,631 INFO  L72            ComplementDD]: Start complementDD. Operand 14 states and 1467 transitions.
[2023-10-26 08:57:36,631 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 14 states and 1467 transitions.
[2023-10-26 08:57:36,632 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:57:36,632 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1467 transitions.
[2023-10-26 08:57:36,634 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 15 states, 14 states have (on average 104.78571428571429) internal successors, (1467), 14 states have internal predecessors, (1467), 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)
[2023-10-26 08:57:36,644 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 15 states, 15 states have (on average 192.0) internal successors, (2880), 15 states have internal predecessors, (2880), 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)
[2023-10-26 08:57:36,644 INFO  L81            ComplementDD]: Finished complementDD. Result  has 15 states, 15 states have (on average 192.0) internal successors, (2880), 15 states have internal predecessors, (2880), 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)
[2023-10-26 08:57:36,645 INFO  L175             Difference]: Start difference. First operand has 86 places, 68 transitions, 396 flow. Second operand 14 states and 1467 transitions.
[2023-10-26 08:57:36,645 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 193 transitions, 1211 flow
[2023-10-26 08:57:36,660 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 193 transitions, 1190 flow, removed 3 selfloop flow, removed 7 redundant places.
[2023-10-26 08:57:36,662 INFO  L231             Difference]: Finished difference. Result has 95 places, 70 transitions, 430 flow
[2023-10-26 08:57:36,662 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=430, PETRI_PLACES=95, PETRI_TRANSITIONS=70}
[2023-10-26 08:57:36,686 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 44 predicate places.
[2023-10-26 08:57:36,686 INFO  L495      AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 430 flow
[2023-10-26 08:57:36,686 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 35 states, 35 states have (on average 95.71428571428571) internal successors, (3350), 35 states have internal predecessors, (3350), 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)
[2023-10-26 08:57:36,686 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:57:36,687 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:36,694 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-10-26 08:57:36,891 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:57:36,892 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:57:36,892 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:57:36,892 INFO  L85        PathProgramCache]: Analyzing trace with hash 995416140, now seen corresponding path program 1 times
[2023-10-26 08:57:36,892 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:57:36,893 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215350642]
[2023-10-26 08:57:36,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:57:36,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:57:36,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:57:36,922 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:57:36,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:57:36,965 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:57:36,965 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:57:36,966 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining)
[2023-10-26 08:57:36,966 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining)
[2023-10-26 08:57:36,972 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining)
[2023-10-26 08:57:36,972 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining)
[2023-10-26 08:57:36,972 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining)
[2023-10-26 08:57:36,972 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining)
[2023-10-26 08:57:36,973 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining)
[2023-10-26 08:57:36,973 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining)
[2023-10-26 08:57:36,973 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-10-26 08:57:36,973 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:57:36,977 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances
[2023-10-26 08:57:36,977 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-10-26 08:57:37,101 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:57:37 BasicIcfg
[2023-10-26 08:57:37,101 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-10-26 08:57:37,102 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-10-26 08:57:37,102 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2023-10-26 08:57:37,102 INFO  L275        PluginConnector]: Witness Printer initialized
[2023-10-26 08:57:37,103 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:56:24" (3/4) ...
[2023-10-26 08:57:37,105 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2023-10-26 08:57:37,105 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-10-26 08:57:37,106 INFO  L158              Benchmark]: Toolchain (without parser) took 73816.28ms. Allocated memory was 45.8MB in the beginning and 885.5MB in the end (delta: 839.6MB). Free memory was 13.9MB in the beginning and 720.1MB in the end (delta: -706.1MB). Peak memory consumption was 133.5MB. Max. memory is 15.6GB.
[2023-10-26 08:57:37,106 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 40.8MB. Free memory is still 15.8MB. There was no memory consumed. Max. memory is 15.6GB.
[2023-10-26 08:57:37,106 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 652.23ms. Allocated memory is still 45.8MB. Free memory was 25.3MB in the beginning and 18.2MB in the end (delta: 7.1MB). Peak memory consumption was 13.8MB. Max. memory is 15.6GB.
[2023-10-26 08:57:37,107 INFO  L158              Benchmark]: Boogie Procedure Inliner took 99.68ms. Allocated memory is still 45.8MB. Free memory was 18.2MB in the beginning and 16.2MB in the end (delta: 1.9MB). Peak memory consumption was 1.9MB. Max. memory is 15.6GB.
[2023-10-26 08:57:37,107 INFO  L158              Benchmark]: Boogie Preprocessor took 68.18ms. Allocated memory is still 45.8MB. Free memory was 16.2MB in the beginning and 14.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.6MB. Max. memory is 15.6GB.
[2023-10-26 08:57:37,108 INFO  L158              Benchmark]: RCFGBuilder took 579.38ms. Allocated memory is still 45.8MB. Free memory was 14.7MB in the beginning and 14.5MB in the end (delta: 153.0kB). Peak memory consumption was 3.6MB. Max. memory is 15.6GB.
[2023-10-26 08:57:37,109 INFO  L158              Benchmark]: TraceAbstraction took 72401.79ms. Allocated memory was 45.8MB in the beginning and 885.5MB in the end (delta: 839.6MB). Free memory was 13.9MB in the beginning and 720.1MB in the end (delta: -706.2MB). Peak memory consumption was 133.5MB. Max. memory is 15.6GB.
[2023-10-26 08:57:37,109 INFO  L158              Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 885.5MB. Free memory is still 720.1MB. There was no memory consumed. Max. memory is 15.6GB.
[2023-10-26 08:57:37,125 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 40.8MB. Free memory is still 15.8MB. There was no memory consumed. Max. memory is 15.6GB.
 * CACSL2BoogieTranslator took 652.23ms. Allocated memory is still 45.8MB. Free memory was 25.3MB in the beginning and 18.2MB in the end (delta: 7.1MB). Peak memory consumption was 13.8MB. Max. memory is 15.6GB.
 * Boogie Procedure Inliner took 99.68ms. Allocated memory is still 45.8MB. Free memory was 18.2MB in the beginning and 16.2MB in the end (delta: 1.9MB). Peak memory consumption was 1.9MB. Max. memory is 15.6GB.
 * Boogie Preprocessor took 68.18ms. Allocated memory is still 45.8MB. Free memory was 16.2MB in the beginning and 14.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.6MB. Max. memory is 15.6GB.
 * RCFGBuilder took 579.38ms. Allocated memory is still 45.8MB. Free memory was 14.7MB in the beginning and 14.5MB in the end (delta: 153.0kB). Peak memory consumption was 3.6MB. Max. memory is 15.6GB.
 * TraceAbstraction took 72401.79ms. Allocated memory was 45.8MB in the beginning and 885.5MB in the end (delta: 839.6MB). Free memory was 13.9MB in the beginning and 720.1MB in the end (delta: -706.2MB). Peak memory consumption was 133.5MB. Max. memory is 15.6GB.
 * Witness Printer took 3.40ms. Allocated memory is still 885.5MB. Free memory is still 720.1MB. There was no memory consumed. Max. memory is 15.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 2.0s, 69 PlacesBefore, 20 PlacesAfterwards, 69 TransitionsBefore, 18 TransitionsAfterwards, 896 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 54 TotalNumberOfCompositions, 1515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 942, independent: 870, independent conditional: 0, independent unconditional: 870, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 450, independent conditional: 0, independent unconditional: 450, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 942, independent: 420, independent conditional: 0, independent unconditional: 420, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.9s, 86 PlacesBefore, 33 PlacesAfterwards, 85 TransitionsBefore, 30 TransitionsAfterwards, 2380 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 5120 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2985, independent: 2845, independent conditional: 0, independent unconditional: 2845, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1224, independent: 1196, independent conditional: 0, independent unconditional: 1196, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2985, independent: 1649, independent conditional: 0, independent unconditional: 1649, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 1224, unknown conditional: 0, unknown unconditional: 1224] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.8s, 103 PlacesBefore, 42 PlacesAfterwards, 101 TransitionsBefore, 38 TransitionsAfterwards, 4284 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 10005 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5229, independent: 5030, independent conditional: 0, independent unconditional: 5030, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2187, independent: 2147, independent conditional: 0, independent unconditional: 2147, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5229, independent: 2883, independent conditional: 0, independent unconditional: 2883, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 2187, unknown conditional: 0, unknown unconditional: 2187] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 216, Positive conditional cache size: 0, Positive unconditional cache size: 216, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.9s, 120 PlacesBefore, 51 PlacesAfterwards, 117 TransitionsBefore, 46 TransitionsAfterwards, 6664 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 16804 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7996, independent: 7737, independent conditional: 0, independent unconditional: 7737, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3271, independent: 3222, independent conditional: 0, independent unconditional: 3222, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7996, independent: 4515, independent conditional: 0, independent unconditional: 4515, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 3271, unknown conditional: 0, unknown unconditional: 3271] , Statistics on independence cache: Total cache size (in pairs): 350, Positive cache size: 320, Positive conditional cache size: 0, Positive unconditional cache size: 320, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - DataRaceFoundResult [Line: 678]: Data race detected
    Data race detected
The following path leads to a data race: 
[L674]               0  int data = 0;
[L675]               0  pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } };
[L683]               0  int threads_total = 4;
[L684]               0  pthread_t tids[4];
[L685]               0  int i = 0;
        VAL             [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={5:0}]
[L685]  COND TRUE    0  i < threads_total
[L686]  FCALL, FORK  0  pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))
        VAL             [arg={0:0}, data=0, data_mutex={1:0}, i=0, pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))=17, threads_total=4, tids={5:0}]
[L678]               1  data = __VERIFIER_nondet_int()
        VAL             [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}]
[L678]               1  data = __VERIFIER_nondet_int()
[L680]               1  return ((void *)0);
[L685]               0  i++
        VAL             [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={5:0}]
[L685]  COND TRUE    0  i < threads_total
[L686]  FCALL, FORK  0  pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))
        VAL             [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))=18, threads_total=4, tids={5:0}]
[L685]               0  i++
        VAL             [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={5:0}]
[L685]  COND TRUE    0  i < threads_total
[L686]  FCALL, FORK  0  pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))
        VAL             [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))=19, threads_total=4, tids={5:0}]
[L678]               3  data = __VERIFIER_nondet_int()
[L680]               3  return ((void *)0);
[L678]               2  data = __VERIFIER_nondet_int()
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}]
[L685]               0  i++
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={5:0}]
[L685]  COND TRUE    0  i < threads_total
[L686]  FCALL, FORK  0  pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, pthread_create(&tids[i], ((void *)0), &thread, ((void *)0))=20, threads_total=4, tids={5:0}]
[L685]               0  i++
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={5:0}]
[L685]  COND FALSE   0  !(i < threads_total)
[L688]               0  int i = 0;
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, i=0, threads_total=4, tids={5:0}]
[L688]  COND TRUE    0  i < threads_total
[L689]  EXPR         0  tids[i]
[L689]               0  pthread_join(tids[i], ((void *)0))
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, i=0, threads_total=4, tids={5:0}, tids[i]=17]
[L689]  FCALL, JOIN  1  pthread_join(tids[i], ((void *)0))
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, i=0, threads_total=4, tids={5:0}, tids[i]=17]
[L688]               0  i += 2
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, i=4, threads_total=4, tids={5:0}]
[L688]  COND TRUE    0  i < threads_total
[L689]  EXPR         0  tids[i]
[L689]               0  pthread_join(tids[i], ((void *)0))
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, i=2, threads_total=4, tids={5:0}, tids[i]=19]
[L689]  FCALL, JOIN  3  pthread_join(tids[i], ((void *)0))
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, i=2, threads_total=4, tids={5:0}, tids[i]=19]
[L688]               0  i += 2
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, i=4, threads_total=4, tids={5:0}]
[L678]               2  data = __VERIFIER_nondet_int()
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data = __VERIFIER_nondet_int()=27, data_mutex={1:0}]
[L688]  COND FALSE   0  !(i < threads_total)
[L691]               0  return data;
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data = __VERIFIER_nondet_int()=27, data_mutex={1:0}, i=4, i=4, threads_total=4, tids={5:0}]
[L678]               2  data = __VERIFIER_nondet_int()
        VAL             [\result={0:0}, __VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, data=0, data = __VERIFIER_nondet_int()=27, data_mutex={1:0}]

Now there is a data race on ~data~0 between 
	C: return data; [691]
and
	C: data = __VERIFIER_nondet_int() [678]

  - UnprovableResult [Line: 691]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 689]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 686]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 3 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 10 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances
    CFG has 4 procedures, 97 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 13 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=3, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances
    CFG has 5 procedures, 112 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 38 mSDtfsCounter, 403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances
    CFG has 6 procedures, 127 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 58.9s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 44.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3216 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2896 mSDsluCounter, 5548 SdHoareTripleChecker+Invalid, 11.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5500 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16678 IncrementalHoareTripleChecker+Invalid, 16763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 48 mSDtfsCounter, 16678 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 182 SyntacticMatches, 6 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=430occurred in iteration=12, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 431 ConstructedInterpolants, 13 QuantifiedInterpolants, 10776 SizeOfPredicates, 29 NumberOfNonLiveVariables, 731 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 116/316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2023-10-26 08:57:37,257 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
