./Ultimate.py --spec /mnt/goblint-svcomp/goblint-bench/bench/concrat/properties/no-data-race.prp --file /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-3.i --full-output --architecture 32bit


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


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data -tc /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-3.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 377790fd19f7d2c65460dbd187cd389cbb6db137039fc1c105290d75002a7086
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-27 12:48:37,618 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-27 12:48:37,632 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-27 12:48:37,678 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-27 12:48:37,679 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-27 12:48:37,679 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-27 12:48:37,680 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-27 12:48:37,682 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-27 12:48:37,696 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-27 12:48:37,701 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-27 12:48:37,702 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-27 12:48:37,704 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-27 12:48:37,704 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-27 12:48:37,706 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-27 12:48:37,708 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-27 12:48:37,710 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-27 12:48:37,711 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-27 12:48:37,712 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-27 12:48:37,713 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-27 12:48:37,734 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-27 12:48:37,736 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-27 12:48:37,737 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-27 12:48:37,738 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-27 12:48:37,739 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-27 12:48:37,742 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-27 12:48:37,742 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-27 12:48:37,742 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-27 12:48:37,743 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-27 12:48:37,744 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-27 12:48:37,744 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-27 12:48:37,745 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-27 12:48:37,745 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-27 12:48:37,747 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-27 12:48:37,747 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-27 12:48:37,752 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-27 12:48:37,752 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-27 12:48:37,752 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-27 12:48:37,753 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-27 12:48:37,753 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-27 12:48:37,754 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-27 12:48:37,754 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-27 12:48:37,755 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-27 12:48:37,792 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-27 12:48:37,793 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-27 12:48:37,793 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-27 12:48:37,794 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-27 12:48:37,794 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-27 12:48:37,795 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-27 12:48:37,795 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-27 12:48:37,795 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-27 12:48:37,795 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-27 12:48:37,795 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-27 12:48:37,796 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-27 12:48:37,796 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-27 12:48:37,796 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-27 12:48:37,797 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-27 12:48:37,808 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-27 12:48:37,808 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-27 12:48:37,808 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-27 12:48:37,808 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-27 12:48:37,808 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-27 12:48:37,808 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-27 12:48:37,809 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-27 12:48:37,809 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-27 12:48:37,809 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-27 12:48:37,809 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-27 12:48:37,809 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-27 12:48:37,809 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-27 12:48:37,810 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:48:37,810 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-27 12:48:37,810 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-27 12:48:37,810 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-27 12:48:37,810 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-27 12:48:37,811 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-27 12:48:37,811 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-27 12:48:37,811 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-27 12:48:37,811 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-27 12:48:37,811 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-27 12:48:37,812 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-27 12:48:37,812 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 -> 377790fd19f7d2c65460dbd187cd389cbb6db137039fc1c105290d75002a7086
[2023-10-27 12:48:38,181 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-27 12:48:38,202 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-27 12:48:38,219 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-27 12:48:38,221 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-27 12:48:38,221 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-27 12:48:38,222 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-3.i
[2023-10-27 12:48:39,845 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-27 12:48:40,191 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-27 12:48:40,192 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-3.i
[2023-10-27 12:48:40,210 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/e277e1b38/57d333e2daa744a4a50b81e4dcec1626/FLAGf2747e5a9
[2023-10-27 12:48:40,225 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/e277e1b38/57d333e2daa744a4a50b81e4dcec1626
[2023-10-27 12:48:40,228 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-27 12:48:40,229 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-27 12:48:40,233 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-27 12:48:40,233 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-27 12:48:40,236 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-27 12:48:40,236 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:40,238 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575a1f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40, skipping insertion in model container
[2023-10-27 12:48:40,238 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:40,270 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-27 12:48:40,351 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-27 12:48:40,813 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:48:40,816 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:48:40,848 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-27 12:48:40,921 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:48:40,928 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:48:40,982 INFO  L208         MainTranslator]: Completed translation
[2023-10-27 12:48:40,983 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40 WrapperNode
[2023-10-27 12:48:40,983 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-27 12:48:40,984 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-27 12:48:40,984 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-27 12:48:40,984 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-27 12:48:41,000 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,025 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,080 INFO  L138                Inliner]: procedures = 159, calls = 46, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99
[2023-10-27 12:48:41,080 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-27 12:48:41,081 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-27 12:48:41,081 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-27 12:48:41,081 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-27 12:48:41,089 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,089 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,103 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,104 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,108 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,124 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,126 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,137 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,139 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-27 12:48:41,139 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-27 12:48:41,139 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-27 12:48:41,140 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-27 12:48:41,140 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (1/1) ...
[2023-10-27 12:48:41,151 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:48:41,168 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:48:41,185 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-10-27 12:48:41,225 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-10-27 12:48:41,231 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-27 12:48:41,231 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-27 12:48:41,232 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-27 12:48:41,232 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-27 12:48:41,232 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-27 12:48:41,232 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-27 12:48:41,232 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2023-10-27 12:48:41,233 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-27 12:48:41,233 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-27 12:48:41,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-27 12:48:41,233 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-27 12:48:41,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-27 12:48:41,235 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-27 12:48:41,489 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-27 12:48:41,490 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-27 12:48:41,950 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-27 12:48:41,957 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-27 12:48:41,973 INFO  L300             CfgBuilder]: Removed 3 assume(true) statements.
[2023-10-27 12:48:41,975 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:48:41 BoogieIcfgContainer
[2023-10-27 12:48:41,976 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-27 12:48:41,980 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-27 12:48:41,980 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-27 12:48:41,982 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-27 12:48:41,983 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:48:40" (1/3) ...
[2023-10-27 12:48:41,984 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e37abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:48:41, skipping insertion in model container
[2023-10-27 12:48:41,984 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:40" (2/3) ...
[2023-10-27 12:48:41,984 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e37abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:48:41, skipping insertion in model container
[2023-10-27 12:48:41,984 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:48:41" (3/3) ...
[2023-10-27 12:48:41,985 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-3.i
[2023-10-27 12:48:42,003 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-27 12:48:42,011 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-27 12:48:42,016 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations.
[2023-10-27 12:48:42,016 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-27 12:48:42,136 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:48:42,197 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 162 places, 165 transitions, 335 flow
[2023-10-27 12:48:42,350 INFO  L130       PetriNetUnfolder]: 9/200 cut-off events.
[2023-10-27 12:48:42,351 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:42,357 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 205 conditions, 200 events. 9/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. 
[2023-10-27 12:48:42,357 INFO  L82        GeneralOperation]: Start removeDead. Operand has 162 places, 165 transitions, 335 flow
[2023-10-27 12:48:42,378 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 162 places, 165 transitions, 335 flow
[2023-10-27 12:48:42,381 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:48:42,393 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 165 transitions, 335 flow
[2023-10-27 12:48:42,400 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 165 transitions, 335 flow
[2023-10-27 12:48:42,400 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 162 places, 165 transitions, 335 flow
[2023-10-27 12:48:42,492 INFO  L130       PetriNetUnfolder]: 9/200 cut-off events.
[2023-10-27 12:48:42,492 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:42,494 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 205 conditions, 200 events. 9/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. 
[2023-10-27 12:48:42,498 INFO  L119        LiptonReduction]: Number of co-enabled transitions 5832
[2023-10-27 12:48:47,454 INFO  L134        LiptonReduction]: Checked pairs total: 25598
[2023-10-27 12:48:47,465 INFO  L136        LiptonReduction]: Total number of compositions: 112
[2023-10-27 12:48:47,483 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:48:47,496 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;@2f03402, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:48:47,497 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 17 error locations.
[2023-10-27 12:48:47,501 INFO  L130       PetriNetUnfolder]: 0/7 cut-off events.
[2023-10-27 12:48:47,501 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:47,502 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:47,502 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:48:47,503 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 14 more)] ===
[2023-10-27 12:48:47,507 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:47,512 INFO  L85        PathProgramCache]: Analyzing trace with hash 17152853, now seen corresponding path program 1 times
[2023-10-27 12:48:47,524 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:47,524 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629567998]
[2023-10-27 12:48:47,524 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:47,525 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:47,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:47,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:48:47,848 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:47,848 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629567998]
[2023-10-27 12:48:47,849 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629567998] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:47,851 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:47,851 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-27 12:48:47,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591665304]
[2023-10-27 12:48:47,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:47,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-27 12:48:47,869 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:47,894 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-27 12:48:47,916 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-27 12:48:47,918 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 160 out of 277
[2023-10-27 12:48:47,920 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 60 transitions, 125 flow. Second operand  has 2 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:47,920 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:47,921 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 277
[2023-10-27 12:48:47,921 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:48:48,075 INFO  L130       PetriNetUnfolder]: 130/442 cut-off events.
[2023-10-27 12:48:48,076 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:48,078 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 714 conditions, 442 events. 130/442 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2342 event pairs, 105 based on Foata normal form. 25/417 useless extension candidates. Maximal degree in co-relation 674. Up to 266 conditions per place. 
[2023-10-27 12:48:48,096 INFO  L137   encePairwiseOnDemand]: 274/277 looper letters, 26 selfloop transitions, 0 changer transitions 0/57 dead transitions.
[2023-10-27 12:48:48,097 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 171 flow
[2023-10-27 12:48:48,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-27 12:48:48,100 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-27 12:48:48,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 349 transitions.
[2023-10-27 12:48:48,113 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6299638989169675
[2023-10-27 12:48:48,113 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 349 transitions.
[2023-10-27 12:48:48,114 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 349 transitions.
[2023-10-27 12:48:48,123 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:48:48,125 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 349 transitions.
[2023-10-27 12:48:48,130 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,145 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,146 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,147 INFO  L175             Difference]: Start difference. First operand has 59 places, 60 transitions, 125 flow. Second operand 2 states and 349 transitions.
[2023-10-27 12:48:48,148 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 171 flow
[2023-10-27 12:48:48,150 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 171 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:48:48,151 INFO  L231             Difference]: Finished difference. Result has 59 places, 57 transitions, 119 flow
[2023-10-27 12:48:48,166 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=119, PETRI_PLACES=59, PETRI_TRANSITIONS=57}
[2023-10-27 12:48:48,170 INFO  L288   CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places.
[2023-10-27 12:48:48,171 INFO  L495      AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 119 flow
[2023-10-27 12:48:48,171 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,171 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:48,171 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-10-27 12:48:48,172 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-27 12:48:48,172 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 14 more)] ===
[2023-10-27 12:48:48,173 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:48,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 530964788, now seen corresponding path program 1 times
[2023-10-27 12:48:48,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:48,176 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577172802]
[2023-10-27 12:48:48,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:48,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:48,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:48,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:48:48,305 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:48,305 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577172802]
[2023-10-27 12:48:48,305 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577172802] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:48,306 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:48,306 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:48,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531940063]
[2023-10-27 12:48:48,306 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:48,307 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:48,308 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:48,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:48,308 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:48,328 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 153 out of 277
[2023-10-27 12:48:48,334 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 119 flow. Second operand  has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,334 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:48,334 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 277
[2023-10-27 12:48:48,334 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:48:48,490 INFO  L130       PetriNetUnfolder]: 177/535 cut-off events.
[2023-10-27 12:48:48,490 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:48,491 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 903 conditions, 535 events. 177/535 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2871 event pairs, 122 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 899. Up to 327 conditions per place. 
[2023-10-27 12:48:48,492 INFO  L137   encePairwiseOnDemand]: 273/277 looper letters, 44 selfloop transitions, 3 changer transitions 0/75 dead transitions.
[2023-10-27 12:48:48,493 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 249 flow
[2023-10-27 12:48:48,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:48:48,493 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:48:48,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions.
[2023-10-27 12:48:48,494 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6101083032490975
[2023-10-27 12:48:48,495 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 507 transitions.
[2023-10-27 12:48:48,495 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions.
[2023-10-27 12:48:48,495 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:48:48,495 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions.
[2023-10-27 12:48:48,496 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,503 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,504 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,504 INFO  L175             Difference]: Start difference. First operand has 59 places, 57 transitions, 119 flow. Second operand 3 states and 507 transitions.
[2023-10-27 12:48:48,504 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 249 flow
[2023-10-27 12:48:48,522 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 249 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:48:48,524 INFO  L231             Difference]: Finished difference. Result has 62 places, 59 transitions, 138 flow
[2023-10-27 12:48:48,524 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=62, PETRI_TRANSITIONS=59}
[2023-10-27 12:48:48,525 INFO  L288   CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places.
[2023-10-27 12:48:48,525 INFO  L495      AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 138 flow
[2023-10-27 12:48:48,525 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:48,525 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:48,526 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-27 12:48:48,526 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-27 12:48:48,526 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 14 more)] ===
[2023-10-27 12:48:48,528 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:48,528 INFO  L85        PathProgramCache]: Analyzing trace with hash -695960389, now seen corresponding path program 1 times
[2023-10-27 12:48:48,528 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:48,529 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999898396]
[2023-10-27 12:48:48,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:48,529 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:48,587 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:48:48,587 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:48:48,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:48:48,662 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:48:48,662 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:48:48,663 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining)
[2023-10-27 12:48:48,664 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining)
[2023-10-27 12:48:48,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining)
[2023-10-27 12:48:48,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining)
[2023-10-27 12:48:48,674 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining)
[2023-10-27 12:48:48,674 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining)
[2023-10-27 12:48:48,677 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining)
[2023-10-27 12:48:48,677 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining)
[2023-10-27 12:48:48,678 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining)
[2023-10-27 12:48:48,678 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining)
[2023-10-27 12:48:48,678 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining)
[2023-10-27 12:48:48,678 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining)
[2023-10-27 12:48:48,681 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining)
[2023-10-27 12:48:48,681 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining)
[2023-10-27 12:48:48,681 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining)
[2023-10-27 12:48:48,681 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining)
[2023-10-27 12:48:48,682 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining)
[2023-10-27 12:48:48,682 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-27 12:48:48,682 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-10-27 12:48:48,701 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:48:48,701 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-27 12:48:48,773 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:48:48,794 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 217 places, 220 transitions, 452 flow
[2023-10-27 12:48:48,853 INFO  L130       PetriNetUnfolder]: 14/308 cut-off events.
[2023-10-27 12:48:48,853 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:48:48,854 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 318 conditions, 308 events. 14/308 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 719 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 201. Up to 6 conditions per place. 
[2023-10-27 12:48:48,854 INFO  L82        GeneralOperation]: Start removeDead. Operand has 217 places, 220 transitions, 452 flow
[2023-10-27 12:48:48,856 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 217 places, 220 transitions, 452 flow
[2023-10-27 12:48:48,856 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:48:48,856 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 220 transitions, 452 flow
[2023-10-27 12:48:48,856 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 220 transitions, 452 flow
[2023-10-27 12:48:48,856 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 217 places, 220 transitions, 452 flow
[2023-10-27 12:48:48,972 INFO  L130       PetriNetUnfolder]: 14/308 cut-off events.
[2023-10-27 12:48:48,974 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:48:48,980 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 318 conditions, 308 events. 14/308 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 719 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 201. Up to 6 conditions per place. 
[2023-10-27 12:48:49,006 INFO  L119        LiptonReduction]: Number of co-enabled transitions 17604
[2023-10-27 12:48:54,511 INFO  L134        LiptonReduction]: Checked pairs total: 106952
[2023-10-27 12:48:54,512 INFO  L136        LiptonReduction]: Total number of compositions: 129
[2023-10-27 12:48:54,514 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:48:54,516 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;@2f03402, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:48:54,517 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2023-10-27 12:48:54,519 INFO  L130       PetriNetUnfolder]: 0/8 cut-off events.
[2023-10-27 12:48:54,520 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:48:54,520 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:54,520 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-10-27 12:48:54,520 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-27 12:48:54,521 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:54,521 INFO  L85        PathProgramCache]: Analyzing trace with hash 916382540, now seen corresponding path program 1 times
[2023-10-27 12:48:54,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:54,522 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101940528]
[2023-10-27 12:48:54,522 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:54,522 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:54,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:54,571 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:48:54,571 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:54,572 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101940528]
[2023-10-27 12:48:54,572 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101940528] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:54,572 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:54,572 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:54,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220735584]
[2023-10-27 12:48:54,573 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:54,574 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:54,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:54,574 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:54,574 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:54,599 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 205 out of 349
[2023-10-27 12:48:54,603 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 100 transitions, 212 flow. Second operand  has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:54,603 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:54,603 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 349
[2023-10-27 12:48:54,603 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:48:56,432 INFO  L130       PetriNetUnfolder]: 5716/11255 cut-off events.
[2023-10-27 12:48:56,433 INFO  L131       PetriNetUnfolder]: For 52/52 co-relation queries the response was YES.
[2023-10-27 12:48:56,454 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19977 conditions, 11255 events. 5716/11255 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 94064 event pairs, 4342 based on Foata normal form. 273/10177 useless extension candidates. Maximal degree in co-relation 13130. Up to 7889 conditions per place. 
[2023-10-27 12:48:56,540 INFO  L137   encePairwiseOnDemand]: 340/349 looper letters, 74 selfloop transitions, 4 changer transitions 0/129 dead transitions.
[2023-10-27 12:48:56,568 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 129 transitions, 426 flow
[2023-10-27 12:48:56,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:48:56,570 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:48:56,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions.
[2023-10-27 12:48:56,571 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6685768863419294
[2023-10-27 12:48:56,571 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 700 transitions.
[2023-10-27 12:48:56,571 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 700 transitions.
[2023-10-27 12:48:56,572 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:48:56,572 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 700 transitions.
[2023-10-27 12:48:56,573 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:56,575 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:56,576 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:56,576 INFO  L175             Difference]: Start difference. First operand has 99 places, 100 transitions, 212 flow. Second operand 3 states and 700 transitions.
[2023-10-27 12:48:56,576 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 129 transitions, 426 flow
[2023-10-27 12:48:56,577 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 129 transitions, 424 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-10-27 12:48:56,579 INFO  L231             Difference]: Finished difference. Result has 101 places, 99 transitions, 228 flow
[2023-10-27 12:48:56,579 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=101, PETRI_TRANSITIONS=99}
[2023-10-27 12:48:56,579 INFO  L288   CegarLoopForPetriNet]: 99 programPoint places, 2 predicate places.
[2023-10-27 12:48:56,580 INFO  L495      AbstractCegarLoop]: Abstraction has has 101 places, 99 transitions, 228 flow
[2023-10-27 12:48:56,580 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:56,580 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:48:56,580 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-27 12:48:56,580 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-27 12:48:56,580 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-27 12:48:56,581 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:48:56,581 INFO  L85        PathProgramCache]: Analyzing trace with hash -1628816552, now seen corresponding path program 1 times
[2023-10-27 12:48:56,581 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:48:56,581 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514221320]
[2023-10-27 12:48:56,581 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:48:56,582 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:48:56,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:48:56,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:48:56,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:48:56,637 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514221320]
[2023-10-27 12:48:56,637 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514221320] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:48:56,637 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:48:56,637 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:48:56,638 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197157752]
[2023-10-27 12:48:56,638 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:48:56,638 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:48:56,638 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:48:56,638 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:48:56,639 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:48:56,670 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 194 out of 349
[2023-10-27 12:48:56,671 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 99 transitions, 228 flow. Second operand  has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:48:56,685 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:48:56,685 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 349
[2023-10-27 12:48:56,685 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:00,098 INFO  L130       PetriNetUnfolder]: 14507/28611 cut-off events.
[2023-10-27 12:49:00,098 INFO  L131       PetriNetUnfolder]: For 1159/2291 co-relation queries the response was YES.
[2023-10-27 12:49:00,165 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 52699 conditions, 28611 events. 14507/28611 cut-off events. For 1159/2291 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 267182 event pairs, 5650 based on Foata normal form. 523/25786 useless extension candidates. Maximal degree in co-relation 32290. Up to 11396 conditions per place. 
[2023-10-27 12:49:00,383 INFO  L137   encePairwiseOnDemand]: 330/349 looper letters, 91 selfloop transitions, 14 changer transitions 0/148 dead transitions.
[2023-10-27 12:49:00,383 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 148 transitions, 546 flow
[2023-10-27 12:49:00,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:00,384 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:00,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 690 transitions.
[2023-10-27 12:49:00,397 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6590257879656161
[2023-10-27 12:49:00,397 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 690 transitions.
[2023-10-27 12:49:00,398 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 690 transitions.
[2023-10-27 12:49:00,398 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:00,398 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 690 transitions.
[2023-10-27 12:49:00,399 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:00,402 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:00,403 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:00,403 INFO  L175             Difference]: Start difference. First operand has 101 places, 99 transitions, 228 flow. Second operand 3 states and 690 transitions.
[2023-10-27 12:49:00,403 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 148 transitions, 546 flow
[2023-10-27 12:49:00,412 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 148 transitions, 541 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-27 12:49:00,429 INFO  L231             Difference]: Finished difference. Result has 104 places, 113 transitions, 346 flow
[2023-10-27 12:49:00,429 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=104, PETRI_TRANSITIONS=113}
[2023-10-27 12:49:00,431 INFO  L288   CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places.
[2023-10-27 12:49:00,431 INFO  L495      AbstractCegarLoop]: Abstraction has has 104 places, 113 transitions, 346 flow
[2023-10-27 12:49:00,432 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:00,432 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:00,432 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:49:00,432 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-27 12:49:00,432 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-27 12:49:00,432 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:00,433 INFO  L85        PathProgramCache]: Analyzing trace with hash 1602562493, now seen corresponding path program 1 times
[2023-10-27 12:49:00,433 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:00,435 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501998487]
[2023-10-27 12:49:00,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:00,435 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:00,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:00,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:00,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:00,518 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501998487]
[2023-10-27 12:49:00,520 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501998487] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:00,520 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:00,528 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:00,528 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174619836]
[2023-10-27 12:49:00,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:00,529 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:00,529 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:00,530 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:00,530 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:00,575 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 200 out of 349
[2023-10-27 12:49:00,576 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 113 transitions, 346 flow. Second operand  has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:00,576 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:00,576 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 349
[2023-10-27 12:49:00,576 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:03,161 INFO  L130       PetriNetUnfolder]: 11974/24211 cut-off events.
[2023-10-27 12:49:03,162 INFO  L131       PetriNetUnfolder]: For 8378/9823 co-relation queries the response was YES.
[2023-10-27 12:49:03,194 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 51086 conditions, 24211 events. 11974/24211 cut-off events. For 8378/9823 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 229785 event pairs, 7592 based on Foata normal form. 525/22170 useless extension candidates. Maximal degree in co-relation 36796. Up to 16952 conditions per place. 
[2023-10-27 12:49:03,363 INFO  L137   encePairwiseOnDemand]: 341/349 looper letters, 76 selfloop transitions, 13 changer transitions 0/146 dead transitions.
[2023-10-27 12:49:03,363 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 146 transitions, 629 flow
[2023-10-27 12:49:03,363 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:03,364 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:03,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions.
[2023-10-27 12:49:03,365 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6437440305635148
[2023-10-27 12:49:03,365 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 674 transitions.
[2023-10-27 12:49:03,365 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions.
[2023-10-27 12:49:03,365 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:03,366 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions.
[2023-10-27 12:49:03,367 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:03,368 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:03,369 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:03,369 INFO  L175             Difference]: Start difference. First operand has 104 places, 113 transitions, 346 flow. Second operand 3 states and 674 transitions.
[2023-10-27 12:49:03,369 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 146 transitions, 629 flow
[2023-10-27 12:49:03,407 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 146 transitions, 591 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:49:03,410 INFO  L231             Difference]: Finished difference. Result has 105 places, 124 transitions, 423 flow
[2023-10-27 12:49:03,411 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=423, PETRI_PLACES=105, PETRI_TRANSITIONS=124}
[2023-10-27 12:49:03,413 INFO  L288   CegarLoopForPetriNet]: 99 programPoint places, 6 predicate places.
[2023-10-27 12:49:03,413 INFO  L495      AbstractCegarLoop]: Abstraction has has 105 places, 124 transitions, 423 flow
[2023-10-27 12:49:03,414 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:03,414 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:03,414 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-27 12:49:03,414 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-27 12:49:03,414 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-27 12:49:03,415 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:03,415 INFO  L85        PathProgramCache]: Analyzing trace with hash 1414557886, now seen corresponding path program 1 times
[2023-10-27 12:49:03,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:03,416 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369257653]
[2023-10-27 12:49:03,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:03,416 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:03,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:03,444 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:49:03,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:03,495 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:49:03,496 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:49:03,496 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining)
[2023-10-27 12:49:03,496 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining)
[2023-10-27 12:49:03,497 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining)
[2023-10-27 12:49:03,498 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining)
[2023-10-27 12:49:03,498 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining)
[2023-10-27 12:49:03,498 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining)
[2023-10-27 12:49:03,498 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining)
[2023-10-27 12:49:03,499 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining)
[2023-10-27 12:49:03,500 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining)
[2023-10-27 12:49:03,500 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining)
[2023-10-27 12:49:03,500 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining)
[2023-10-27 12:49:03,500 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining)
[2023-10-27 12:49:03,501 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining)
[2023-10-27 12:49:03,501 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining)
[2023-10-27 12:49:03,501 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining)
[2023-10-27 12:49:03,501 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining)
[2023-10-27 12:49:03,503 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-10-27 12:49:03,503 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-27 12:49:03,504 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:49:03,504 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-27 12:49:03,542 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:03,545 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 272 places, 275 transitions, 571 flow
[2023-10-27 12:49:03,632 INFO  L130       PetriNetUnfolder]: 19/416 cut-off events.
[2023-10-27 12:49:03,642 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:49:03,645 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 432 conditions, 416 events. 19/416 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1086 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 312. Up to 8 conditions per place. 
[2023-10-27 12:49:03,645 INFO  L82        GeneralOperation]: Start removeDead. Operand has 272 places, 275 transitions, 571 flow
[2023-10-27 12:49:03,647 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 272 places, 275 transitions, 571 flow
[2023-10-27 12:49:03,647 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:03,647 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 275 transitions, 571 flow
[2023-10-27 12:49:03,648 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 275 transitions, 571 flow
[2023-10-27 12:49:03,648 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 272 places, 275 transitions, 571 flow
[2023-10-27 12:49:03,703 INFO  L130       PetriNetUnfolder]: 19/416 cut-off events.
[2023-10-27 12:49:03,714 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:49:03,717 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 432 conditions, 416 events. 19/416 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1086 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 312. Up to 8 conditions per place. 
[2023-10-27 12:49:03,736 INFO  L119        LiptonReduction]: Number of co-enabled transitions 35316
[2023-10-27 12:49:08,425 INFO  L134        LiptonReduction]: Checked pairs total: 203877
[2023-10-27 12:49:08,426 INFO  L136        LiptonReduction]: Total number of compositions: 148
[2023-10-27 12:49:08,427 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:08,427 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;@2f03402, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:08,427 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 29 error locations.
[2023-10-27 12:49:08,428 INFO  L130       PetriNetUnfolder]: 0/8 cut-off events.
[2023-10-27 12:49:08,428 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:08,428 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:08,428 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-10-27 12:49:08,428 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 26 more)] ===
[2023-10-27 12:49:08,429 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:08,429 INFO  L85        PathProgramCache]: Analyzing trace with hash 1372449550, now seen corresponding path program 1 times
[2023-10-27 12:49:08,429 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:08,429 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575890058]
[2023-10-27 12:49:08,429 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:08,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:08,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:08,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:08,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:08,480 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575890058]
[2023-10-27 12:49:08,480 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575890058] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:08,481 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:08,481 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:08,481 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297912959]
[2023-10-27 12:49:08,481 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:08,481 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:08,481 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:08,482 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:08,482 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:08,505 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 257 out of 423
[2023-10-27 12:49:08,506 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 137 transitions, 295 flow. Second operand  has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:08,506 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:08,506 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 423
[2023-10-27 12:49:08,506 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:30,725 INFO  L130       PetriNetUnfolder]: 131304/210223 cut-off events.
[2023-10-27 12:49:30,725 INFO  L131       PetriNetUnfolder]: For 1639/1639 co-relation queries the response was YES.
[2023-10-27 12:49:31,206 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 387383 conditions, 210223 events. 131304/210223 cut-off events. For 1639/1639 co-relation queries the response was YES. Maximal size of possible extension queue 5640. Compared 2035707 event pairs, 103363 based on Foata normal form. 4096/193316 useless extension candidates. Maximal degree in co-relation 203634. Up to 160686 conditions per place. 
[2023-10-27 12:49:32,295 INFO  L137   encePairwiseOnDemand]: 412/423 looper letters, 104 selfloop transitions, 5 changer transitions 0/180 dead transitions.
[2023-10-27 12:49:32,295 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 180 transitions, 599 flow
[2023-10-27 12:49:32,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:32,295 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:32,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions.
[2023-10-27 12:49:32,297 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.7005516154452325
[2023-10-27 12:49:32,297 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 889 transitions.
[2023-10-27 12:49:32,297 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 889 transitions.
[2023-10-27 12:49:32,298 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:32,298 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 889 transitions.
[2023-10-27 12:49:32,313 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:32,316 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:32,317 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:32,317 INFO  L175             Difference]: Start difference. First operand has 136 places, 137 transitions, 295 flow. Second operand 3 states and 889 transitions.
[2023-10-27 12:49:32,317 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 180 transitions, 599 flow
[2023-10-27 12:49:32,326 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 180 transitions, 593 flow, removed 3 selfloop flow, removed 0 redundant places.
[2023-10-27 12:49:32,328 INFO  L231             Difference]: Finished difference. Result has 138 places, 136 transitions, 312 flow
[2023-10-27 12:49:32,330 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=138, PETRI_TRANSITIONS=136}
[2023-10-27 12:49:32,331 INFO  L288   CegarLoopForPetriNet]: 136 programPoint places, 2 predicate places.
[2023-10-27 12:49:32,331 INFO  L495      AbstractCegarLoop]: Abstraction has has 138 places, 136 transitions, 312 flow
[2023-10-27 12:49:32,333 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:32,333 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:32,334 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-27 12:49:32,334 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-10-27 12:49:32,338 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 26 more)] ===
[2023-10-27 12:49:32,338 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:32,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -372484136, now seen corresponding path program 1 times
[2023-10-27 12:49:32,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:32,340 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376986609]
[2023-10-27 12:49:32,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:32,341 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:32,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:32,382 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:32,383 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:32,383 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376986609]
[2023-10-27 12:49:32,383 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376986609] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:32,383 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:32,383 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:32,383 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923094404]
[2023-10-27 12:49:32,384 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:32,384 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:32,384 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:32,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:32,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:32,438 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 239 out of 423
[2023-10-27 12:49:32,439 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 136 transitions, 312 flow. Second operand  has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:49:32,439 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:32,439 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 423
[2023-10-27 12:49:32,439 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
