./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/per-thread-struct-tid-join.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/per-thread-struct-tid-join.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 f03714ca280bfbb82eac832abd6e52b91a787db7f0e2862da3dee559279d7fbe
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-11-03 12:44:10,602 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-11-03 12:44:10,604 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-11-03 12:44:10,625 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-11-03 12:44:10,625 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-11-03 12:44:10,626 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-11-03 12:44:10,627 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-11-03 12:44:10,629 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-11-03 12:44:10,630 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-11-03 12:44:10,630 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-11-03 12:44:10,631 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-11-03 12:44:10,632 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-11-03 12:44:10,632 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-11-03 12:44:10,633 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-11-03 12:44:10,633 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-11-03 12:44:10,634 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-11-03 12:44:10,635 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-11-03 12:44:10,636 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-11-03 12:44:10,637 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-11-03 12:44:10,638 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-11-03 12:44:10,639 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-11-03 12:44:10,640 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-11-03 12:44:10,641 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-11-03 12:44:10,641 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-11-03 12:44:10,644 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-11-03 12:44:10,644 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-11-03 12:44:10,644 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-11-03 12:44:10,645 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-11-03 12:44:10,645 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-11-03 12:44:10,646 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-11-03 12:44:10,646 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-11-03 12:44:10,647 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-11-03 12:44:10,647 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-11-03 12:44:10,648 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-11-03 12:44:10,648 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-11-03 12:44:10,648 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-11-03 12:44:10,649 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-11-03 12:44:10,649 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-11-03 12:44:10,649 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-11-03 12:44:10,650 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-11-03 12:44:10,650 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-11-03 12:44:10,651 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-11-03 12:44:10,666 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-11-03 12:44:10,666 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-03 12:44:10,667 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-03 12:44:10,667 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-03 12:44:10,667 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-03 12:44:10,667 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-03 12:44:10,668 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-03 12:44:10,668 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-03 12:44:10,668 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-11-03 12:44:10,668 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-03 12:44:10,668 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-11-03 12:44:10,668 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-03 12:44:10,669 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-03 12:44:10,670 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-03 12:44:10,670 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-11-03 12:44:10,670 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-03 12:44:10,671 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-03 12:44:10,671 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-03 12:44:10,671 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-03 12:44:10,671 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-03 12:44:10,671 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-03 12:44:10,671 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-03 12:44:10,671 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 -> f03714ca280bfbb82eac832abd6e52b91a787db7f0e2862da3dee559279d7fbe
[2023-11-03 12:44:10,876 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-03 12:44:10,900 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-03 12:44:10,903 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-03 12:44:10,904 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-11-03 12:44:10,905 INFO  L275        PluginConnector]: CDTParser initialized
[2023-11-03 12:44:10,906 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/per-thread-struct-tid-join.i
[2023-11-03 12:44:12,004 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-11-03 12:44:12,176 INFO  L351              CDTParser]: Found 1 translation units.
[2023-11-03 12:44:12,177 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/per-thread-struct-tid-join.i
[2023-11-03 12:44:12,188 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/5a5e2a535/6446864e50fd4f549ec9d343c03c450d/FLAG7ab2785f3
[2023-11-03 12:44:12,198 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/5a5e2a535/6446864e50fd4f549ec9d343c03c450d
[2023-11-03 12:44:12,201 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-03 12:44:12,202 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-03 12:44:12,203 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-03 12:44:12,203 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-03 12:44:12,206 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-03 12:44:12,206 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,207 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93d256c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12, skipping insertion in model container
[2023-11-03 12:44:12,207 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,213 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-11-03 12:44:12,254 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-11-03 12:44:12,375 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-03 12:44:12,554 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-11-03 12:44:12,563 INFO  L203         MainTranslator]: Completed pre-run
[2023-11-03 12:44:12,573 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-03 12:44:12,597 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-11-03 12:44:12,635 INFO  L208         MainTranslator]: Completed translation
[2023-11-03 12:44:12,636 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12 WrapperNode
[2023-11-03 12:44:12,636 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-03 12:44:12,637 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-03 12:44:12,637 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-03 12:44:12,637 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-03 12:44:12,642 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,658 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,678 INFO  L138                Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84
[2023-11-03 12:44:12,678 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-03 12:44:12,679 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-03 12:44:12,679 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-03 12:44:12,679 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-11-03 12:44:12,686 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,686 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,690 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,691 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,697 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,699 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,701 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,702 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,704 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-03 12:44:12,705 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-03 12:44:12,705 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-11-03 12:44:12,705 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-11-03 12:44:12,706 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (1/1) ...
[2023-11-03 12:44:12,711 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-03 12:44:12,718 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 12:44:12,731 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)
[2023-11-03 12:44:12,734 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
[2023-11-03 12:44:12,757 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-03 12:44:12,757 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-03 12:44:12,757 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-11-03 12:44:12,757 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-11-03 12:44:12,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-11-03 12:44:12,758 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-03 12:44:12,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-03 12:44:12,759 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-11-03 12:44:12,870 INFO  L235             CfgBuilder]: Building ICFG
[2023-11-03 12:44:12,871 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-03 12:44:13,094 INFO  L276             CfgBuilder]: Performing block encoding
[2023-11-03 12:44:13,100 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-03 12:44:13,100 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-03 12:44:13,102 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:44:13 BoogieIcfgContainer
[2023-11-03 12:44:13,102 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-03 12:44:13,104 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-03 12:44:13,104 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-11-03 12:44:13,106 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-11-03 12:44:13,106 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:44:12" (1/3) ...
[2023-11-03 12:44:13,107 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788e85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:44:13, skipping insertion in model container
[2023-11-03 12:44:13,107 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:12" (2/3) ...
[2023-11-03 12:44:13,107 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788e85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:44:13, skipping insertion in model container
[2023-11-03 12:44:13,107 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:44:13" (3/3) ...
[2023-11-03 12:44:13,108 INFO  L112   eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i
[2023-11-03 12:44:13,114 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-03 12:44:13,121 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-03 12:44:13,121 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-11-03 12:44:13,122 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-03 12:44:13,161 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-11-03 12:44:13,188 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 110 places, 111 transitions, 230 flow
[2023-11-03 12:44:13,234 INFO  L130       PetriNetUnfolder]: 6/155 cut-off events.
[2023-11-03 12:44:13,234 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-11-03 12:44:13,238 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 161 conditions, 155 events. 6/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 75. Up to 4 conditions per place. 
[2023-11-03 12:44:13,238 INFO  L82        GeneralOperation]: Start removeDead. Operand has 110 places, 111 transitions, 230 flow
[2023-11-03 12:44:13,243 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 110 places, 111 transitions, 230 flow
[2023-11-03 12:44:13,246 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 12:44:13,254 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 111 transitions, 230 flow
[2023-11-03 12:44:13,256 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 111 transitions, 230 flow
[2023-11-03 12:44:13,257 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 110 places, 111 transitions, 230 flow
[2023-11-03 12:44:13,283 INFO  L130       PetriNetUnfolder]: 6/155 cut-off events.
[2023-11-03 12:44:13,283 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-11-03 12:44:13,283 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 161 conditions, 155 events. 6/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 75. Up to 4 conditions per place. 
[2023-11-03 12:44:13,285 INFO  L119        LiptonReduction]: Number of co-enabled transitions 1400
[2023-11-03 12:44:18,488 INFO  L134        LiptonReduction]: Checked pairs total: 2095
[2023-11-03 12:44:18,488 INFO  L136        LiptonReduction]: Total number of compositions: 107
[2023-11-03 12:44:18,502 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 12:44:18,508 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;@46f40df9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 12:44:18,508 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2023-11-03 12:44:18,510 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-11-03 12:44:18,510 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 12:44:18,511 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:18,511 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-03 12:44:18,512 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2023-11-03 12:44:18,516 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:18,516 INFO  L85        PathProgramCache]: Analyzing trace with hash 12699, now seen corresponding path program 1 times
[2023-11-03 12:44:18,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:18,523 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071653449]
[2023-11-03 12:44:18,524 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:18,524 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:18,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:18,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:18,650 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:18,650 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071653449]
[2023-11-03 12:44:18,651 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071653449] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:18,651 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:18,651 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-03 12:44:18,652 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734182100]
[2023-11-03 12:44:18,653 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:18,659 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-03 12:44:18,659 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:18,675 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-03 12:44:18,677 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-03 12:44:18,678 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 106 out of 218
[2023-11-03 12:44:18,680 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 50 flow. Second operand  has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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)
[2023-11-03 12:44:18,680 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:18,680 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 218
[2023-11-03 12:44:18,680 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:18,736 INFO  L130       PetriNetUnfolder]: 19/66 cut-off events.
[2023-11-03 12:44:18,736 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-11-03 12:44:18,736 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 127 conditions, 66 events. 19/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 206 event pairs, 18 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 99. Up to 55 conditions per place. 
[2023-11-03 12:44:18,738 INFO  L137   encePairwiseOnDemand]: 214/218 looper letters, 13 selfloop transitions, 0 changer transitions 0/17 dead transitions.
[2023-11-03 12:44:18,738 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 17 transitions, 68 flow
[2023-11-03 12:44:18,739 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-03 12:44:18,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-03 12:44:18,752 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 229 transitions.
[2023-11-03 12:44:18,755 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5252293577981652
[2023-11-03 12:44:18,756 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 229 transitions.
[2023-11-03 12:44:18,756 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 229 transitions.
[2023-11-03 12:44:18,757 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:18,759 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 229 transitions.
[2023-11-03 12:44:18,761 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 114.5) internal successors, (229), 2 states have internal predecessors, (229), 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)
[2023-11-03 12:44:18,765 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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)
[2023-11-03 12:44:18,766 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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)
[2023-11-03 12:44:18,767 INFO  L175             Difference]: Start difference. First operand has 23 places, 21 transitions, 50 flow. Second operand 2 states and 229 transitions.
[2023-11-03 12:44:18,768 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 17 transitions, 68 flow
[2023-11-03 12:44:18,769 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:18,770 INFO  L231             Difference]: Finished difference. Result has 20 places, 17 transitions, 42 flow
[2023-11-03 12:44:18,772 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=20, PETRI_TRANSITIONS=17}
[2023-11-03 12:44:18,775 INFO  L288   CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places.
[2023-11-03 12:44:18,776 INFO  L495      AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 42 flow
[2023-11-03 12:44:18,776 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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)
[2023-11-03 12:44:18,776 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:18,776 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-03 12:44:18,776 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-03 12:44:18,776 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2023-11-03 12:44:18,777 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:18,777 INFO  L85        PathProgramCache]: Analyzing trace with hash 12163348, now seen corresponding path program 1 times
[2023-11-03 12:44:18,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:18,777 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135131511]
[2023-11-03 12:44:18,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:18,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:18,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:18,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:18,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:18,831 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135131511]
[2023-11-03 12:44:18,831 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135131511] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:18,831 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:18,831 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:18,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393051762]
[2023-11-03 12:44:18,832 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:18,833 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:18,833 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:18,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:18,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:18,847 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 102 out of 218
[2023-11-03 12:44:18,847 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 42 flow. Second operand  has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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)
[2023-11-03 12:44:18,847 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:18,847 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 218
[2023-11-03 12:44:18,848 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:18,936 INFO  L130       PetriNetUnfolder]: 24/81 cut-off events.
[2023-11-03 12:44:18,936 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-11-03 12:44:18,937 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 161 conditions, 81 events. 24/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 276 event pairs, 13 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 157. Up to 50 conditions per place. 
[2023-11-03 12:44:18,937 INFO  L137   encePairwiseOnDemand]: 214/218 looper letters, 14 selfloop transitions, 3 changer transitions 3/22 dead transitions.
[2023-11-03 12:44:18,937 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 92 flow
[2023-11-03 12:44:18,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:18,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:18,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions.
[2023-11-03 12:44:18,940 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5
[2023-11-03 12:44:18,940 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 327 transitions.
[2023-11-03 12:44:18,940 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions.
[2023-11-03 12:44:18,941 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:18,941 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions.
[2023-11-03 12:44:18,943 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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)
[2023-11-03 12:44:18,944 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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)
[2023-11-03 12:44:18,945 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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)
[2023-11-03 12:44:18,945 INFO  L175             Difference]: Start difference. First operand has 20 places, 17 transitions, 42 flow. Second operand 3 states and 327 transitions.
[2023-11-03 12:44:18,945 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 92 flow
[2023-11-03 12:44:18,946 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 92 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:18,947 INFO  L231             Difference]: Finished difference. Result has 24 places, 17 transitions, 57 flow
[2023-11-03 12:44:18,947 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=24, PETRI_TRANSITIONS=17}
[2023-11-03 12:44:18,948 INFO  L288   CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places.
[2023-11-03 12:44:18,948 INFO  L495      AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 57 flow
[2023-11-03 12:44:18,949 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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)
[2023-11-03 12:44:18,949 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:18,949 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-03 12:44:18,949 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-03 12:44:18,949 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2023-11-03 12:44:18,950 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:18,950 INFO  L85        PathProgramCache]: Analyzing trace with hash -1145348911, now seen corresponding path program 1 times
[2023-11-03 12:44:18,950 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:18,951 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292783660]
[2023-11-03 12:44:18,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:18,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:19,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:44:19,003 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 12:44:19,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:44:19,040 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 12:44:19,041 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 12:44:19,042 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining)
[2023-11-03 12:44:19,043 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining)
[2023-11-03 12:44:19,043 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining)
[2023-11-03 12:44:19,043 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining)
[2023-11-03 12:44:19,044 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining)
[2023-11-03 12:44:19,044 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining)
[2023-11-03 12:44:19,044 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining)
[2023-11-03 12:44:19,044 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining)
[2023-11-03 12:44:19,044 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-03 12:44:19,045 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-03 12:44:19,046 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 12:44:19,046 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-03 12:44:19,062 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-03 12:44:19,064 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 272 flow
[2023-11-03 12:44:19,089 INFO  L130       PetriNetUnfolder]: 11/275 cut-off events.
[2023-11-03 12:44:19,089 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-11-03 12:44:19,089 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 289 conditions, 275 events. 11/275 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 527 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 157. Up to 8 conditions per place. 
[2023-11-03 12:44:19,090 INFO  L82        GeneralOperation]: Start removeDead. Operand has 127 places, 127 transitions, 272 flow
[2023-11-03 12:44:19,091 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 272 flow
[2023-11-03 12:44:19,091 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 12:44:19,091 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 272 flow
[2023-11-03 12:44:19,091 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 272 flow
[2023-11-03 12:44:19,091 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 272 flow
[2023-11-03 12:44:19,111 INFO  L130       PetriNetUnfolder]: 11/275 cut-off events.
[2023-11-03 12:44:19,112 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-11-03 12:44:19,112 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 289 conditions, 275 events. 11/275 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 527 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 157. Up to 8 conditions per place. 
[2023-11-03 12:44:19,115 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4060
[2023-11-03 12:44:24,991 INFO  L134        LiptonReduction]: Checked pairs total: 8070
[2023-11-03 12:44:24,991 INFO  L136        LiptonReduction]: Total number of compositions: 109
[2023-11-03 12:44:24,994 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 12:44:24,995 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;@46f40df9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 12:44:24,995 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2023-11-03 12:44:24,996 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-11-03 12:44:24,997 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 12:44:24,997 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:24,997 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-03 12:44:24,997 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-03 12:44:24,997 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:24,998 INFO  L85        PathProgramCache]: Analyzing trace with hash 20759, now seen corresponding path program 1 times
[2023-11-03 12:44:24,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:24,998 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8418030]
[2023-11-03 12:44:24,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:24,998 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:25,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:25,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:25,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:25,023 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8418030]
[2023-11-03 12:44:25,024 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8418030] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:25,024 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:25,024 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-03 12:44:25,024 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831343981]
[2023-11-03 12:44:25,024 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:25,024 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-03 12:44:25,024 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:25,025 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-03 12:44:25,025 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-03 12:44:25,025 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 120 out of 236
[2023-11-03 12:44:25,026 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 84 flow. Second operand  has 2 states, 2 states have (on average 121.0) internal successors, (242), 2 states have internal predecessors, (242), 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)
[2023-11-03 12:44:25,026 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:25,026 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 236
[2023-11-03 12:44:25,026 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:25,158 INFO  L130       PetriNetUnfolder]: 378/759 cut-off events.
[2023-11-03 12:44:25,158 INFO  L131       PetriNetUnfolder]: For 38/38 co-relation queries the response was YES.
[2023-11-03 12:44:25,160 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1466 conditions, 759 events. 378/759 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3823 event pairs, 371 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 519. Up to 666 conditions per place. 
[2023-11-03 12:44:25,163 INFO  L137   encePairwiseOnDemand]: 232/236 looper letters, 21 selfloop transitions, 0 changer transitions 0/29 dead transitions.
[2023-11-03 12:44:25,163 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 118 flow
[2023-11-03 12:44:25,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-03 12:44:25,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-03 12:44:25,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 265 transitions.
[2023-11-03 12:44:25,166 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5614406779661016
[2023-11-03 12:44:25,166 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 265 transitions.
[2023-11-03 12:44:25,166 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 265 transitions.
[2023-11-03 12:44:25,166 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:25,166 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 265 transitions.
[2023-11-03 12:44:25,168 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 132.5) internal successors, (265), 2 states have internal predecessors, (265), 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)
[2023-11-03 12:44:25,169 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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)
[2023-11-03 12:44:25,170 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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)
[2023-11-03 12:44:25,170 INFO  L175             Difference]: Start difference. First operand has 36 places, 33 transitions, 84 flow. Second operand 2 states and 265 transitions.
[2023-11-03 12:44:25,170 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 118 flow
[2023-11-03 12:44:25,171 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:25,172 INFO  L231             Difference]: Finished difference. Result has 33 places, 29 transitions, 76 flow
[2023-11-03 12:44:25,172 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=33, PETRI_TRANSITIONS=29}
[2023-11-03 12:44:25,173 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places.
[2023-11-03 12:44:25,173 INFO  L495      AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 76 flow
[2023-11-03 12:44:25,173 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 121.0) internal successors, (242), 2 states have internal predecessors, (242), 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)
[2023-11-03 12:44:25,173 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:25,174 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-03 12:44:25,174 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-03 12:44:25,174 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-03 12:44:25,174 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:25,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 19923905, now seen corresponding path program 1 times
[2023-11-03 12:44:25,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:25,175 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753027043]
[2023-11-03 12:44:25,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:25,175 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:25,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:25,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:25,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:25,206 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753027043]
[2023-11-03 12:44:25,206 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753027043] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:25,206 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:25,206 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:25,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367219848]
[2023-11-03 12:44:25,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:25,207 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:25,207 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:25,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:25,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:25,227 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 115 out of 236
[2023-11-03 12:44:25,228 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 76 flow. Second operand  has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 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)
[2023-11-03 12:44:25,228 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:25,228 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 236
[2023-11-03 12:44:25,228 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:25,412 INFO  L130       PetriNetUnfolder]: 679/1281 cut-off events.
[2023-11-03 12:44:25,412 INFO  L131       PetriNetUnfolder]: For 42/42 co-relation queries the response was YES.
[2023-11-03 12:44:25,414 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2525 conditions, 1281 events. 679/1281 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6797 event pairs, 416 based on Foata normal form. 0/1155 useless extension candidates. Maximal degree in co-relation 2520. Up to 850 conditions per place. 
[2023-11-03 12:44:25,417 INFO  L137   encePairwiseOnDemand]: 231/236 looper letters, 32 selfloop transitions, 4 changer transitions 0/41 dead transitions.
[2023-11-03 12:44:25,417 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 172 flow
[2023-11-03 12:44:25,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:25,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:25,419 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions.
[2023-11-03 12:44:25,420 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.53954802259887
[2023-11-03 12:44:25,420 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 382 transitions.
[2023-11-03 12:44:25,420 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions.
[2023-11-03 12:44:25,420 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:25,420 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions.
[2023-11-03 12:44:25,422 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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)
[2023-11-03 12:44:25,423 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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)
[2023-11-03 12:44:25,424 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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)
[2023-11-03 12:44:25,424 INFO  L175             Difference]: Start difference. First operand has 33 places, 29 transitions, 76 flow. Second operand 3 states and 382 transitions.
[2023-11-03 12:44:25,424 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 172 flow
[2023-11-03 12:44:25,425 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:25,426 INFO  L231             Difference]: Finished difference. Result has 37 places, 32 transitions, 106 flow
[2023-11-03 12:44:25,426 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=32}
[2023-11-03 12:44:25,426 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places.
[2023-11-03 12:44:25,427 INFO  L495      AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 106 flow
[2023-11-03 12:44:25,427 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 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)
[2023-11-03 12:44:25,427 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:25,427 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:25,427 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-03 12:44:25,427 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-03 12:44:25,428 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:25,428 INFO  L85        PathProgramCache]: Analyzing trace with hash -2030480634, now seen corresponding path program 1 times
[2023-11-03 12:44:25,428 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:25,428 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209054879]
[2023-11-03 12:44:25,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:25,428 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:25,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:25,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:25,462 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:25,462 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209054879]
[2023-11-03 12:44:25,462 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209054879] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:25,463 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:25,463 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:25,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004402457]
[2023-11-03 12:44:25,463 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:25,463 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:25,463 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:25,464 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:25,464 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:25,480 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 113 out of 236
[2023-11-03 12:44:25,481 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 106 flow. Second operand  has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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)
[2023-11-03 12:44:25,481 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:25,481 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 236
[2023-11-03 12:44:25,481 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:25,692 INFO  L130       PetriNetUnfolder]: 739/1420 cut-off events.
[2023-11-03 12:44:25,692 INFO  L131       PetriNetUnfolder]: For 335/335 co-relation queries the response was YES.
[2023-11-03 12:44:25,694 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 1420 events. 739/1420 cut-off events. For 335/335 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8164 event pairs, 430 based on Foata normal form. 0/1298 useless extension candidates. Maximal degree in co-relation 3143. Up to 943 conditions per place. 
[2023-11-03 12:44:25,698 INFO  L137   encePairwiseOnDemand]: 230/236 looper letters, 35 selfloop transitions, 7 changer transitions 0/49 dead transitions.
[2023-11-03 12:44:25,698 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 49 transitions, 242 flow
[2023-11-03 12:44:25,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:25,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:25,700 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions.
[2023-11-03 12:44:25,700 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5353107344632768
[2023-11-03 12:44:25,700 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 379 transitions.
[2023-11-03 12:44:25,700 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions.
[2023-11-03 12:44:25,700 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:25,700 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions.
[2023-11-03 12:44:25,702 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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)
[2023-11-03 12:44:25,703 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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)
[2023-11-03 12:44:25,703 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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)
[2023-11-03 12:44:25,703 INFO  L175             Difference]: Start difference. First operand has 37 places, 32 transitions, 106 flow. Second operand 3 states and 379 transitions.
[2023-11-03 12:44:25,704 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 49 transitions, 242 flow
[2023-11-03 12:44:25,707 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 12:44:25,708 INFO  L231             Difference]: Finished difference. Result has 39 places, 37 transitions, 154 flow
[2023-11-03 12:44:25,708 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=39, PETRI_TRANSITIONS=37}
[2023-11-03 12:44:25,709 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places.
[2023-11-03 12:44:25,709 INFO  L495      AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 154 flow
[2023-11-03 12:44:25,709 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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)
[2023-11-03 12:44:25,709 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:25,710 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:25,710 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-03 12:44:25,710 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-03 12:44:25,710 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:25,710 INFO  L85        PathProgramCache]: Analyzing trace with hash 132359137, now seen corresponding path program 1 times
[2023-11-03 12:44:25,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:25,711 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170584659]
[2023-11-03 12:44:25,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:25,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:25,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:25,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:25,789 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:25,789 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170584659]
[2023-11-03 12:44:25,789 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170584659] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 12:44:25,790 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596870668]
[2023-11-03 12:44:25,790 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:25,790 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 12:44:25,790 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 12:44:25,792 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 12:44:25,793 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-03 12:44:25,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:25,871 INFO  L263         TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-03 12:44:25,875 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 12:44:25,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:25,927 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 12:44:25,953 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:25,953 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [596870668] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 12:44:25,953 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 12:44:25,953 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2023-11-03 12:44:25,953 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616604935]
[2023-11-03 12:44:25,954 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 12:44:25,954 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-03 12:44:25,954 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:25,954 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-03 12:44:25,954 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-11-03 12:44:26,104 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 110 out of 236
[2023-11-03 12:44:26,105 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 154 flow. Second operand  has 7 states, 7 states have (on average 111.71428571428571) internal successors, (782), 7 states have internal predecessors, (782), 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)
[2023-11-03 12:44:26,105 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:26,105 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 236
[2023-11-03 12:44:26,105 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:26,367 INFO  L130       PetriNetUnfolder]: 349/721 cut-off events.
[2023-11-03 12:44:26,367 INFO  L131       PetriNetUnfolder]: For 446/519 co-relation queries the response was YES.
[2023-11-03 12:44:26,368 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1765 conditions, 721 events. 349/721 cut-off events. For 446/519 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3554 event pairs, 166 based on Foata normal form. 83/756 useless extension candidates. Maximal degree in co-relation 1757. Up to 379 conditions per place. 
[2023-11-03 12:44:26,370 INFO  L137   encePairwiseOnDemand]: 230/236 looper letters, 38 selfloop transitions, 5 changer transitions 15/68 dead transitions.
[2023-11-03 12:44:26,370 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 374 flow
[2023-11-03 12:44:26,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-03 12:44:26,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-03 12:44:26,372 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 819 transitions.
[2023-11-03 12:44:26,373 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4957627118644068
[2023-11-03 12:44:26,373 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 819 transitions.
[2023-11-03 12:44:26,373 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 819 transitions.
[2023-11-03 12:44:26,373 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:26,373 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 819 transitions.
[2023-11-03 12:44:26,375 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 12:44:26,378 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 236.0) internal successors, (1888), 8 states have internal predecessors, (1888), 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)
[2023-11-03 12:44:26,379 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 236.0) internal successors, (1888), 8 states have internal predecessors, (1888), 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)
[2023-11-03 12:44:26,379 INFO  L175             Difference]: Start difference. First operand has 39 places, 37 transitions, 154 flow. Second operand 7 states and 819 transitions.
[2023-11-03 12:44:26,379 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 374 flow
[2023-11-03 12:44:26,381 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 68 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 12:44:26,382 INFO  L231             Difference]: Finished difference. Result has 46 places, 38 transitions, 166 flow
[2023-11-03 12:44:26,382 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=166, PETRI_PLACES=46, PETRI_TRANSITIONS=38}
[2023-11-03 12:44:26,382 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places.
[2023-11-03 12:44:26,382 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 166 flow
[2023-11-03 12:44:26,383 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 111.71428571428571) internal successors, (782), 7 states have internal predecessors, (782), 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)
[2023-11-03 12:44:26,383 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:26,383 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-11-03 12:44:26,390 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-11-03 12:44:26,584 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 12:44:26,585 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-03 12:44:26,585 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:26,585 INFO  L85        PathProgramCache]: Analyzing trace with hash 1540330148, now seen corresponding path program 1 times
[2023-11-03 12:44:26,586 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:26,586 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630619497]
[2023-11-03 12:44:26,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:26,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:26,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:44:26,629 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 12:44:26,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:44:26,651 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 12:44:26,651 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 12:44:26,651 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining)
[2023-11-03 12:44:26,651 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining)
[2023-11-03 12:44:26,652 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining)
[2023-11-03 12:44:26,652 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining)
[2023-11-03 12:44:26,652 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining)
[2023-11-03 12:44:26,652 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining)
[2023-11-03 12:44:26,652 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining)
[2023-11-03 12:44:26,653 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining)
[2023-11-03 12:44:26,653 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining)
[2023-11-03 12:44:26,653 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-03 12:44:26,653 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2023-11-03 12:44:26,653 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 12:44:26,654 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-11-03 12:44:26,670 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-11-03 12:44:26,672 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 144 places, 143 transitions, 316 flow
[2023-11-03 12:44:26,703 INFO  L130       PetriNetUnfolder]: 21/478 cut-off events.
[2023-11-03 12:44:26,703 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-11-03 12:44:26,704 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 506 conditions, 478 events. 21/478 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1233 event pairs, 1 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 283. Up to 16 conditions per place. 
[2023-11-03 12:44:26,704 INFO  L82        GeneralOperation]: Start removeDead. Operand has 144 places, 143 transitions, 316 flow
[2023-11-03 12:44:26,705 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 144 places, 143 transitions, 316 flow
[2023-11-03 12:44:26,706 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 12:44:26,706 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 143 transitions, 316 flow
[2023-11-03 12:44:26,706 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 143 transitions, 316 flow
[2023-11-03 12:44:26,706 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 144 places, 143 transitions, 316 flow
[2023-11-03 12:44:26,738 INFO  L130       PetriNetUnfolder]: 21/478 cut-off events.
[2023-11-03 12:44:26,738 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-11-03 12:44:26,739 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 506 conditions, 478 events. 21/478 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1233 event pairs, 1 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 283. Up to 16 conditions per place. 
[2023-11-03 12:44:26,744 INFO  L119        LiptonReduction]: Number of co-enabled transitions 6804
[2023-11-03 12:44:32,231 INFO  L134        LiptonReduction]: Checked pairs total: 14999
[2023-11-03 12:44:32,231 INFO  L136        LiptonReduction]: Total number of compositions: 116
[2023-11-03 12:44:32,233 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 12:44:32,233 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;@46f40df9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 12:44:32,233 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2023-11-03 12:44:32,234 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-11-03 12:44:32,234 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 12:44:32,234 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:32,234 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-03 12:44:32,235 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:32,235 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:32,235 INFO  L85        PathProgramCache]: Analyzing trace with hash 29562, now seen corresponding path program 1 times
[2023-11-03 12:44:32,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:32,235 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284318121]
[2023-11-03 12:44:32,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:32,236 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:32,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:32,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:32,244 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:32,244 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284318121]
[2023-11-03 12:44:32,245 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284318121] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:32,245 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:32,245 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-03 12:44:32,245 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672728013]
[2023-11-03 12:44:32,245 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:32,245 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-03 12:44:32,245 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:32,245 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-03 12:44:32,246 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-03 12:44:32,246 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 134 out of 259
[2023-11-03 12:44:32,246 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 112 flow. Second operand  has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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)
[2023-11-03 12:44:32,246 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:32,246 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 259
[2023-11-03 12:44:32,246 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:32,571 INFO  L130       PetriNetUnfolder]: 2816/4880 cut-off events.
[2023-11-03 12:44:32,571 INFO  L131       PetriNetUnfolder]: For 391/391 co-relation queries the response was YES.
[2023-11-03 12:44:32,576 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 9408 conditions, 4880 events. 2816/4880 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 31768 event pairs, 2773 based on Foata normal form. 0/4396 useless extension candidates. Maximal degree in co-relation 1284. Up to 4239 conditions per place. 
[2023-11-03 12:44:32,591 INFO  L137   encePairwiseOnDemand]: 255/259 looper letters, 26 selfloop transitions, 0 changer transitions 0/37 dead transitions.
[2023-11-03 12:44:32,592 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 156 flow
[2023-11-03 12:44:32,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-03 12:44:32,592 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-03 12:44:32,593 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 298 transitions.
[2023-11-03 12:44:32,593 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5752895752895753
[2023-11-03 12:44:32,593 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 298 transitions.
[2023-11-03 12:44:32,593 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 298 transitions.
[2023-11-03 12:44:32,594 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:32,594 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 298 transitions.
[2023-11-03 12:44:32,594 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 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)
[2023-11-03 12:44:32,595 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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)
[2023-11-03 12:44:32,595 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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)
[2023-11-03 12:44:32,595 INFO  L175             Difference]: Start difference. First operand has 45 places, 41 transitions, 112 flow. Second operand 2 states and 298 transitions.
[2023-11-03 12:44:32,595 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 156 flow
[2023-11-03 12:44:32,596 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 156 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:32,597 INFO  L231             Difference]: Finished difference. Result has 42 places, 37 transitions, 104 flow
[2023-11-03 12:44:32,597 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=104, PETRI_PLACES=42, PETRI_TRANSITIONS=37}
[2023-11-03 12:44:32,597 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places.
[2023-11-03 12:44:32,597 INFO  L495      AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 104 flow
[2023-11-03 12:44:32,598 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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)
[2023-11-03 12:44:32,598 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:32,598 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-03 12:44:32,598 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-03 12:44:32,598 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:32,598 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:32,598 INFO  L85        PathProgramCache]: Analyzing trace with hash 28387591, now seen corresponding path program 1 times
[2023-11-03 12:44:32,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:32,598 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465389291]
[2023-11-03 12:44:32,598 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:32,599 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:32,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:32,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:32,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:32,615 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465389291]
[2023-11-03 12:44:32,615 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465389291] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:32,616 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:32,616 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:32,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237330313]
[2023-11-03 12:44:32,616 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:32,616 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:32,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:32,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:32,616 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:32,639 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 128 out of 259
[2023-11-03 12:44:32,639 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 104 flow. Second operand  has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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)
[2023-11-03 12:44:32,639 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:32,640 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 259
[2023-11-03 12:44:32,640 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:33,272 INFO  L130       PetriNetUnfolder]: 6464/10469 cut-off events.
[2023-11-03 12:44:33,272 INFO  L131       PetriNetUnfolder]: For 513/513 co-relation queries the response was YES.
[2023-11-03 12:44:33,281 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 20544 conditions, 10469 events. 6464/10469 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 67665 event pairs, 4145 based on Foata normal form. 0/9652 useless extension candidates. Maximal degree in co-relation 20538. Up to 7124 conditions per place. 
[2023-11-03 12:44:33,313 INFO  L137   encePairwiseOnDemand]: 253/259 looper letters, 41 selfloop transitions, 5 changer transitions 0/53 dead transitions.
[2023-11-03 12:44:33,313 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 228 flow
[2023-11-03 12:44:33,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:33,314 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:33,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions.
[2023-11-03 12:44:33,315 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5546975546975547
[2023-11-03 12:44:33,315 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 431 transitions.
[2023-11-03 12:44:33,315 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 431 transitions.
[2023-11-03 12:44:33,315 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:33,315 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 431 transitions.
[2023-11-03 12:44:33,316 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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)
[2023-11-03 12:44:33,317 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:33,317 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:33,317 INFO  L175             Difference]: Start difference. First operand has 42 places, 37 transitions, 104 flow. Second operand 3 states and 431 transitions.
[2023-11-03 12:44:33,318 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 228 flow
[2023-11-03 12:44:33,318 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:33,319 INFO  L231             Difference]: Finished difference. Result has 46 places, 41 transitions, 142 flow
[2023-11-03 12:44:33,319 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=46, PETRI_TRANSITIONS=41}
[2023-11-03 12:44:33,320 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places.
[2023-11-03 12:44:33,320 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 142 flow
[2023-11-03 12:44:33,320 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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)
[2023-11-03 12:44:33,320 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:33,320 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:33,321 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-03 12:44:33,321 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:33,321 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:33,321 INFO  L85        PathProgramCache]: Analyzing trace with hash 1023113375, now seen corresponding path program 1 times
[2023-11-03 12:44:33,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:33,321 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955715911]
[2023-11-03 12:44:33,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:33,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:33,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:33,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:33,368 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:33,368 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955715911]
[2023-11-03 12:44:33,368 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955715911] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:33,368 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:33,368 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:33,368 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157984502]
[2023-11-03 12:44:33,368 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:33,368 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:33,368 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:33,369 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:33,369 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:33,390 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 126 out of 259
[2023-11-03 12:44:33,391 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 142 flow. Second operand  has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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)
[2023-11-03 12:44:33,391 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:33,391 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 259
[2023-11-03 12:44:33,391 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:34,262 INFO  L130       PetriNetUnfolder]: 7755/12626 cut-off events.
[2023-11-03 12:44:34,262 INFO  L131       PetriNetUnfolder]: For 3803/3875 co-relation queries the response was YES.
[2023-11-03 12:44:34,276 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 28091 conditions, 12626 events. 7755/12626 cut-off events. For 3803/3875 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 87005 event pairs, 4766 based on Foata normal form. 12/11662 useless extension candidates. Maximal degree in co-relation 28083. Up to 8832 conditions per place. 
[2023-11-03 12:44:34,307 INFO  L137   encePairwiseOnDemand]: 252/259 looper letters, 47 selfloop transitions, 9 changer transitions 0/65 dead transitions.
[2023-11-03 12:44:34,308 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 65 transitions, 336 flow
[2023-11-03 12:44:34,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:34,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:34,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions.
[2023-11-03 12:44:34,309 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5534105534105535
[2023-11-03 12:44:34,309 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 430 transitions.
[2023-11-03 12:44:34,309 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions.
[2023-11-03 12:44:34,310 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:34,310 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions.
[2023-11-03 12:44:34,310 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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)
[2023-11-03 12:44:34,311 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:34,312 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:34,312 INFO  L175             Difference]: Start difference. First operand has 46 places, 41 transitions, 142 flow. Second operand 3 states and 430 transitions.
[2023-11-03 12:44:34,312 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 65 transitions, 336 flow
[2023-11-03 12:44:34,343 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 12:44:34,344 INFO  L231             Difference]: Finished difference. Result has 48 places, 48 transitions, 208 flow
[2023-11-03 12:44:34,345 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=48, PETRI_TRANSITIONS=48}
[2023-11-03 12:44:34,345 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 3 predicate places.
[2023-11-03 12:44:34,345 INFO  L495      AbstractCegarLoop]: Abstraction has has 48 places, 48 transitions, 208 flow
[2023-11-03 12:44:34,345 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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)
[2023-11-03 12:44:34,345 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:34,346 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:34,346 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-03 12:44:34,346 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:34,346 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:34,346 INFO  L85        PathProgramCache]: Analyzing trace with hash -887283486, now seen corresponding path program 1 times
[2023-11-03 12:44:34,346 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:34,346 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652752838]
[2023-11-03 12:44:34,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:34,346 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:34,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:34,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-03 12:44:34,383 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:34,383 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652752838]
[2023-11-03 12:44:34,384 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652752838] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:34,384 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:34,384 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:34,384 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792353301]
[2023-11-03 12:44:34,384 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:34,384 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:34,384 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:34,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:34,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:34,406 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 126 out of 259
[2023-11-03 12:44:34,407 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 48 transitions, 208 flow. Second operand  has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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)
[2023-11-03 12:44:34,407 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:34,407 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 259
[2023-11-03 12:44:34,407 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:35,523 INFO  L130       PetriNetUnfolder]: 10028/16133 cut-off events.
[2023-11-03 12:44:35,524 INFO  L131       PetriNetUnfolder]: For 12499/12818 co-relation queries the response was YES.
[2023-11-03 12:44:35,547 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 41486 conditions, 16133 events. 10028/16133 cut-off events. For 12499/12818 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 114233 event pairs, 5272 based on Foata normal form. 0/14749 useless extension candidates. Maximal degree in co-relation 41477. Up to 11338 conditions per place. 
[2023-11-03 12:44:35,630 INFO  L137   encePairwiseOnDemand]: 252/259 looper letters, 53 selfloop transitions, 14 changer transitions 0/76 dead transitions.
[2023-11-03 12:44:35,630 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 465 flow
[2023-11-03 12:44:35,631 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:35,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:35,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions.
[2023-11-03 12:44:35,633 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5521235521235521
[2023-11-03 12:44:35,633 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 429 transitions.
[2023-11-03 12:44:35,633 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions.
[2023-11-03 12:44:35,633 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:35,633 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions.
[2023-11-03 12:44:35,634 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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)
[2023-11-03 12:44:35,635 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:35,635 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:35,635 INFO  L175             Difference]: Start difference. First operand has 48 places, 48 transitions, 208 flow. Second operand 3 states and 429 transitions.
[2023-11-03 12:44:35,635 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 465 flow
[2023-11-03 12:44:35,673 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 12:44:35,674 INFO  L231             Difference]: Finished difference. Result has 50 places, 58 transitions, 320 flow
[2023-11-03 12:44:35,674 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=320, PETRI_PLACES=50, PETRI_TRANSITIONS=58}
[2023-11-03 12:44:35,675 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 5 predicate places.
[2023-11-03 12:44:35,675 INFO  L495      AbstractCegarLoop]: Abstraction has has 50 places, 58 transitions, 320 flow
[2023-11-03 12:44:35,675 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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)
[2023-11-03 12:44:35,675 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:35,675 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:35,676 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-03 12:44:35,676 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:35,676 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:35,676 INFO  L85        PathProgramCache]: Analyzing trace with hash 1976071896, now seen corresponding path program 1 times
[2023-11-03 12:44:35,676 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:35,676 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114418644]
[2023-11-03 12:44:35,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:35,677 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:35,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:35,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:35,734 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:35,734 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114418644]
[2023-11-03 12:44:35,734 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114418644] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 12:44:35,734 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950165141]
[2023-11-03 12:44:35,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:35,735 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 12:44:35,735 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 12:44:35,736 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 12:44:35,738 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-03 12:44:35,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:35,824 INFO  L263         TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-03 12:44:35,825 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 12:44:35,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:35,851 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 12:44:35,872 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:35,872 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950165141] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 12:44:35,872 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 12:44:35,872 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2023-11-03 12:44:35,872 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268486969]
[2023-11-03 12:44:35,873 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 12:44:35,873 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-03 12:44:35,873 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:35,873 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-03 12:44:35,873 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-11-03 12:44:35,991 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259
[2023-11-03 12:44:35,992 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 58 transitions, 320 flow. Second operand  has 7 states, 7 states have (on average 125.71428571428571) internal successors, (880), 7 states have internal predecessors, (880), 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)
[2023-11-03 12:44:35,992 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:35,992 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259
[2023-11-03 12:44:35,992 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:36,811 INFO  L130       PetriNetUnfolder]: 4893/8294 cut-off events.
[2023-11-03 12:44:36,811 INFO  L131       PetriNetUnfolder]: For 10562/12770 co-relation queries the response was YES.
[2023-11-03 12:44:36,822 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 22232 conditions, 8294 events. 4893/8294 cut-off events. For 10562/12770 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 56805 event pairs, 1942 based on Foata normal form. 774/8515 useless extension candidates. Maximal degree in co-relation 22222. Up to 4458 conditions per place. 
[2023-11-03 12:44:36,842 INFO  L137   encePairwiseOnDemand]: 253/259 looper letters, 76 selfloop transitions, 6 changer transitions 4/104 dead transitions.
[2023-11-03 12:44:36,842 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 104 transitions, 679 flow
[2023-11-03 12:44:36,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-03 12:44:36,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-03 12:44:36,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 929 transitions.
[2023-11-03 12:44:36,844 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5124103695532267
[2023-11-03 12:44:36,844 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 929 transitions.
[2023-11-03 12:44:36,844 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 929 transitions.
[2023-11-03 12:44:36,845 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:36,845 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 929 transitions.
[2023-11-03 12:44:36,847 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 132.71428571428572) internal successors, (929), 7 states have internal predecessors, (929), 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)
[2023-11-03 12:44:36,849 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 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)
[2023-11-03 12:44:36,849 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 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)
[2023-11-03 12:44:36,849 INFO  L175             Difference]: Start difference. First operand has 50 places, 58 transitions, 320 flow. Second operand 7 states and 929 transitions.
[2023-11-03 12:44:36,849 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 104 transitions, 679 flow
[2023-11-03 12:44:36,855 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 104 transitions, 639 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 12:44:36,856 INFO  L231             Difference]: Finished difference. Result has 57 places, 60 transitions, 325 flow
[2023-11-03 12:44:36,856 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=325, PETRI_PLACES=57, PETRI_TRANSITIONS=60}
[2023-11-03 12:44:36,856 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places.
[2023-11-03 12:44:36,857 INFO  L495      AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 325 flow
[2023-11-03 12:44:36,857 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 125.71428571428571) internal successors, (880), 7 states have internal predecessors, (880), 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)
[2023-11-03 12:44:36,857 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:36,857 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:36,865 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-11-03 12:44:37,058 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 12:44:37,059 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:37,059 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:37,059 INFO  L85        PathProgramCache]: Analyzing trace with hash -1414615787, now seen corresponding path program 1 times
[2023-11-03 12:44:37,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:37,060 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85235242]
[2023-11-03 12:44:37,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:37,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:37,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:37,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:37,145 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:37,145 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85235242]
[2023-11-03 12:44:37,145 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85235242] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:37,146 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:37,146 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 12:44:37,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236900356]
[2023-11-03 12:44:37,146 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:37,146 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:37,146 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:37,147 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:37,147 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:37,168 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 127 out of 259
[2023-11-03 12:44:37,169 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 325 flow. Second operand  has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 12:44:37,169 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:37,169 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 259
[2023-11-03 12:44:37,169 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:37,427 INFO  L130       PetriNetUnfolder]: 750/1931 cut-off events.
[2023-11-03 12:44:37,427 INFO  L131       PetriNetUnfolder]: For 2298/2308 co-relation queries the response was YES.
[2023-11-03 12:44:37,430 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 5604 conditions, 1931 events. 750/1931 cut-off events. For 2298/2308 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 13792 event pairs, 176 based on Foata normal form. 344/2223 useless extension candidates. Maximal degree in co-relation 5591. Up to 1137 conditions per place. 
[2023-11-03 12:44:37,433 INFO  L137   encePairwiseOnDemand]: 253/259 looper letters, 42 selfloop transitions, 8 changer transitions 0/64 dead transitions.
[2023-11-03 12:44:37,433 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 420 flow
[2023-11-03 12:44:37,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:37,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:37,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions.
[2023-11-03 12:44:37,435 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5431145431145431
[2023-11-03 12:44:37,435 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 422 transitions.
[2023-11-03 12:44:37,435 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions.
[2023-11-03 12:44:37,435 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:37,435 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions.
[2023-11-03 12:44:37,436 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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)
[2023-11-03 12:44:37,437 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:37,438 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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)
[2023-11-03 12:44:37,438 INFO  L175             Difference]: Start difference. First operand has 57 places, 60 transitions, 325 flow. Second operand 3 states and 422 transitions.
[2023-11-03 12:44:37,438 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 420 flow
[2023-11-03 12:44:37,440 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 411 flow, removed 4 selfloop flow, removed 1 redundant places.
[2023-11-03 12:44:37,441 INFO  L231             Difference]: Finished difference. Result has 57 places, 50 transitions, 252 flow
[2023-11-03 12:44:37,442 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=57, PETRI_TRANSITIONS=50}
[2023-11-03 12:44:37,442 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places.
[2023-11-03 12:44:37,442 INFO  L495      AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 252 flow
[2023-11-03 12:44:37,443 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 12:44:37,443 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:37,443 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-11-03 12:44:37,443 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-11-03 12:44:37,443 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-03 12:44:37,443 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:37,443 INFO  L85        PathProgramCache]: Analyzing trace with hash 197461489, now seen corresponding path program 1 times
[2023-11-03 12:44:37,443 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:37,443 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316144168]
[2023-11-03 12:44:37,444 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:37,444 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:37,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:44:37,483 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 12:44:37,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:44:37,506 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 12:44:37,506 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 12:44:37,506 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining)
[2023-11-03 12:44:37,506 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining)
[2023-11-03 12:44:37,507 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining)
[2023-11-03 12:44:37,507 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-11-03 12:44:37,507 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:37,508 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 12:44:37,508 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-11-03 12:44:37,527 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-03 12:44:37,529 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 161 places, 159 transitions, 362 flow
[2023-11-03 12:44:37,611 INFO  L130       PetriNetUnfolder]: 43/849 cut-off events.
[2023-11-03 12:44:37,611 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-11-03 12:44:37,613 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 904 conditions, 849 events. 43/849 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3003 event pairs, 6 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 498. Up to 32 conditions per place. 
[2023-11-03 12:44:37,613 INFO  L82        GeneralOperation]: Start removeDead. Operand has 161 places, 159 transitions, 362 flow
[2023-11-03 12:44:37,615 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 161 places, 159 transitions, 362 flow
[2023-11-03 12:44:37,615 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 12:44:37,615 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 159 transitions, 362 flow
[2023-11-03 12:44:37,616 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 159 transitions, 362 flow
[2023-11-03 12:44:37,616 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 161 places, 159 transitions, 362 flow
[2023-11-03 12:44:37,698 INFO  L130       PetriNetUnfolder]: 43/849 cut-off events.
[2023-11-03 12:44:37,698 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-11-03 12:44:37,700 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 904 conditions, 849 events. 43/849 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3003 event pairs, 6 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 498. Up to 32 conditions per place. 
[2023-11-03 12:44:37,717 INFO  L119        LiptonReduction]: Number of co-enabled transitions 10024
[2023-11-03 12:44:43,378 INFO  L134        LiptonReduction]: Checked pairs total: 22537
[2023-11-03 12:44:43,378 INFO  L136        LiptonReduction]: Total number of compositions: 125
[2023-11-03 12:44:43,380 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 12:44:43,381 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;@46f40df9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 12:44:43,381 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2023-11-03 12:44:43,383 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-11-03 12:44:43,383 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 12:44:43,383 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:43,383 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-03 12:44:43,383 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:44:43,384 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:43,384 INFO  L85        PathProgramCache]: Analyzing trace with hash 39160, now seen corresponding path program 1 times
[2023-11-03 12:44:43,384 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:43,384 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132314624]
[2023-11-03 12:44:43,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:43,384 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:43,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:43,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:43,392 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:43,392 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132314624]
[2023-11-03 12:44:43,392 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132314624] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:43,392 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:43,392 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-03 12:44:43,392 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239836785]
[2023-11-03 12:44:43,392 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:43,393 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-03 12:44:43,393 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:43,393 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-03 12:44:43,393 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-03 12:44:43,394 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 148 out of 284
[2023-11-03 12:44:43,394 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 142 flow. Second operand  has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 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)
[2023-11-03 12:44:43,394 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:43,394 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 284
[2023-11-03 12:44:43,394 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:46,949 INFO  L130       PetriNetUnfolder]: 43986/63902 cut-off events.
[2023-11-03 12:44:46,949 INFO  L131       PetriNetUnfolder]: For 5920/5920 co-relation queries the response was YES.
[2023-11-03 12:44:47,026 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 126459 conditions, 63902 events. 43986/63902 cut-off events. For 5920/5920 co-relation queries the response was YES. Maximal size of possible extension queue 1708. Compared 434075 event pairs, 43586 based on Foata normal form. 0/59303 useless extension candidates. Maximal degree in co-relation 15264. Up to 59360 conditions per place. 
[2023-11-03 12:44:47,231 INFO  L137   encePairwiseOnDemand]: 280/284 looper letters, 36 selfloop transitions, 0 changer transitions 0/45 dead transitions.
[2023-11-03 12:44:47,232 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 206 flow
[2023-11-03 12:44:47,233 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-03 12:44:47,233 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-03 12:44:47,233 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 336 transitions.
[2023-11-03 12:44:47,234 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5915492957746479
[2023-11-03 12:44:47,234 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 336 transitions.
[2023-11-03 12:44:47,234 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 336 transitions.
[2023-11-03 12:44:47,234 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:47,234 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 336 transitions.
[2023-11-03 12:44:47,235 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 168.0) internal successors, (336), 2 states have internal predecessors, (336), 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)
[2023-11-03 12:44:47,235 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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)
[2023-11-03 12:44:47,236 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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)
[2023-11-03 12:44:47,236 INFO  L175             Difference]: Start difference. First operand has 54 places, 49 transitions, 142 flow. Second operand 2 states and 336 transitions.
[2023-11-03 12:44:47,236 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 206 flow
[2023-11-03 12:44:47,237 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 206 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:47,238 INFO  L231             Difference]: Finished difference. Result has 51 places, 45 transitions, 134 flow
[2023-11-03 12:44:47,238 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=51, PETRI_TRANSITIONS=45}
[2023-11-03 12:44:47,238 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places.
[2023-11-03 12:44:47,239 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 134 flow
[2023-11-03 12:44:47,239 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 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)
[2023-11-03 12:44:47,239 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:47,239 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-03 12:44:47,239 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-11-03 12:44:47,239 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:44:47,239 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:47,239 INFO  L85        PathProgramCache]: Analyzing trace with hash 37618953, now seen corresponding path program 1 times
[2023-11-03 12:44:47,240 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:47,240 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715027971]
[2023-11-03 12:44:47,240 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:47,240 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:47,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:47,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:47,256 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:47,256 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715027971]
[2023-11-03 12:44:47,257 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715027971] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:47,257 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:47,257 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:47,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518708958]
[2023-11-03 12:44:47,257 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:47,257 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:47,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:47,258 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:47,258 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:47,280 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 141 out of 284
[2023-11-03 12:44:47,281 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 134 flow. Second operand  has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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)
[2023-11-03 12:44:47,281 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:47,281 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 284
[2023-11-03 12:44:47,281 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:52,472 INFO  L130       PetriNetUnfolder]: 73069/103628 cut-off events.
[2023-11-03 12:44:52,473 INFO  L131       PetriNetUnfolder]: For 5920/5920 co-relation queries the response was YES.
[2023-11-03 12:44:52,620 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 206250 conditions, 103628 events. 73069/103628 cut-off events. For 5920/5920 co-relation queries the response was YES. Maximal size of possible extension queue 2367. Compared 705032 event pairs, 48108 based on Foata normal form. 0/97520 useless extension candidates. Maximal degree in co-relation 206243. Up to 73612 conditions per place. 
[2023-11-03 12:44:52,926 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 54 selfloop transitions, 6 changer transitions 0/67 dead transitions.
[2023-11-03 12:44:52,926 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 67 transitions, 298 flow
[2023-11-03 12:44:52,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:44:52,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:44:52,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions.
[2023-11-03 12:44:52,928 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.568075117370892
[2023-11-03 12:44:52,928 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 484 transitions.
[2023-11-03 12:44:52,928 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 484 transitions.
[2023-11-03 12:44:52,928 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:44:52,928 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 484 transitions.
[2023-11-03 12:44:52,929 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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)
[2023-11-03 12:44:52,930 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:44:52,930 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:44:52,930 INFO  L175             Difference]: Start difference. First operand has 51 places, 45 transitions, 134 flow. Second operand 3 states and 484 transitions.
[2023-11-03 12:44:52,930 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 67 transitions, 298 flow
[2023-11-03 12:44:52,932 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 67 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:44:52,933 INFO  L231             Difference]: Finished difference. Result has 55 places, 50 transitions, 180 flow
[2023-11-03 12:44:52,933 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=55, PETRI_TRANSITIONS=50}
[2023-11-03 12:44:52,934 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places.
[2023-11-03 12:44:52,934 INFO  L495      AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 180 flow
[2023-11-03 12:44:52,934 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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)
[2023-11-03 12:44:52,934 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:44:52,934 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:44:52,934 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-11-03 12:44:52,934 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:44:52,934 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:44:52,934 INFO  L85        PathProgramCache]: Analyzing trace with hash 1374823291, now seen corresponding path program 1 times
[2023-11-03 12:44:52,934 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:44:52,935 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155073947]
[2023-11-03 12:44:52,935 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:44:52,935 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:44:52,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:44:52,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:44:52,957 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:44:52,957 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155073947]
[2023-11-03 12:44:52,958 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155073947] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:44:52,958 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:44:52,958 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:44:52,958 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144862493]
[2023-11-03 12:44:52,958 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:44:52,958 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:44:52,958 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:44:52,958 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:44:52,959 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:44:52,981 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-11-03 12:44:52,982 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 180 flow. Second operand  has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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)
[2023-11-03 12:44:52,982 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:44:52,982 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-11-03 12:44:52,982 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:44:59,656 INFO  L130       PetriNetUnfolder]: 80443/116082 cut-off events.
[2023-11-03 12:44:59,656 INFO  L131       PetriNetUnfolder]: For 33081/33081 co-relation queries the response was YES.
[2023-11-03 12:44:59,859 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 261645 conditions, 116082 events. 80443/116082 cut-off events. For 33081/33081 co-relation queries the response was YES. Maximal size of possible extension queue 3245. Compared 846839 event pairs, 61928 based on Foata normal form. 0/109131 useless extension candidates. Maximal degree in co-relation 261636. Up to 97189 conditions per place. 
[2023-11-03 12:45:00,220 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 63 selfloop transitions, 10 changer transitions 0/82 dead transitions.
[2023-11-03 12:45:00,220 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 442 flow
[2023-11-03 12:45:00,221 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:45:00,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:45:00,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions.
[2023-11-03 12:45:00,222 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.568075117370892
[2023-11-03 12:45:00,222 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 484 transitions.
[2023-11-03 12:45:00,222 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 484 transitions.
[2023-11-03 12:45:00,223 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:45:00,223 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 484 transitions.
[2023-11-03 12:45:00,223 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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)
[2023-11-03 12:45:00,224 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:00,225 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:00,225 INFO  L175             Difference]: Start difference. First operand has 55 places, 50 transitions, 180 flow. Second operand 3 states and 484 transitions.
[2023-11-03 12:45:00,225 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 442 flow
[2023-11-03 12:45:02,736 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 82 transitions, 422 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 12:45:02,737 INFO  L231             Difference]: Finished difference. Result has 56 places, 58 transitions, 246 flow
[2023-11-03 12:45:02,737 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=56, PETRI_TRANSITIONS=58}
[2023-11-03 12:45:02,737 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places.
[2023-11-03 12:45:02,737 INFO  L495      AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 246 flow
[2023-11-03 12:45:02,738 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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)
[2023-11-03 12:45:02,738 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:02,738 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:45:02,738 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-11-03 12:45:02,738 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:45:02,738 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:02,738 INFO  L85        PathProgramCache]: Analyzing trace with hash -1622060290, now seen corresponding path program 1 times
[2023-11-03 12:45:02,738 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:02,739 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96417762]
[2023-11-03 12:45:02,739 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:02,739 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:02,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:02,805 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:45:02,805 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:45:02,806 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96417762]
[2023-11-03 12:45:02,806 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96417762] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 12:45:02,806 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069844583]
[2023-11-03 12:45:02,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:02,806 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 12:45:02,806 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 12:45:02,807 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 12:45:02,809 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-03 12:45:02,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:02,920 INFO  L263         TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-03 12:45:02,921 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 12:45:02,963 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:45:02,963 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 12:45:02,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:45:02,995 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069844583] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 12:45:02,995 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 12:45:02,995 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8
[2023-11-03 12:45:02,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507779214]
[2023-11-03 12:45:02,995 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 12:45:02,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-03 12:45:02,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:45:02,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-03 12:45:02,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2023-11-03 12:45:03,198 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 138 out of 284
[2023-11-03 12:45:03,199 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 246 flow. Second operand  has 9 states, 9 states have (on average 139.88888888888889) internal successors, (1259), 9 states have internal predecessors, (1259), 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)
[2023-11-03 12:45:03,199 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:45:03,199 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 284
[2023-11-03 12:45:03,199 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:45:08,565 INFO  L130       PetriNetUnfolder]: 50994/75559 cut-off events.
[2023-11-03 12:45:08,565 INFO  L131       PetriNetUnfolder]: For 47399/48880 co-relation queries the response was YES.
[2023-11-03 12:45:08,724 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 184481 conditions, 75559 events. 50994/75559 cut-off events. For 47399/48880 co-relation queries the response was YES. Maximal size of possible extension queue 1642. Compared 542080 event pairs, 22350 based on Foata normal form. 1949/73918 useless extension candidates. Maximal degree in co-relation 184471. Up to 45163 conditions per place. 
[2023-11-03 12:45:08,987 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 102 selfloop transitions, 7 changer transitions 4/123 dead transitions.
[2023-11-03 12:45:08,987 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 123 transitions, 700 flow
[2023-11-03 12:45:08,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-11-03 12:45:08,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2023-11-03 12:45:08,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1198 transitions.
[2023-11-03 12:45:08,990 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5272887323943662
[2023-11-03 12:45:08,990 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 1198 transitions.
[2023-11-03 12:45:08,990 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 1198 transitions.
[2023-11-03 12:45:08,991 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:45:08,991 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1198 transitions.
[2023-11-03 12:45:08,993 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 9 states, 8 states have (on average 149.75) internal successors, (1198), 8 states have internal predecessors, (1198), 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)
[2023-11-03 12:45:08,995 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 9 states, 9 states have (on average 284.0) internal successors, (2556), 9 states have internal predecessors, (2556), 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)
[2023-11-03 12:45:08,995 INFO  L81            ComplementDD]: Finished complementDD. Result  has 9 states, 9 states have (on average 284.0) internal successors, (2556), 9 states have internal predecessors, (2556), 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)
[2023-11-03 12:45:08,995 INFO  L175             Difference]: Start difference. First operand has 56 places, 58 transitions, 246 flow. Second operand 8 states and 1198 transitions.
[2023-11-03 12:45:08,995 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 123 transitions, 700 flow
[2023-11-03 12:45:09,463 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 123 transitions, 678 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 12:45:09,464 INFO  L231             Difference]: Finished difference. Result has 66 places, 62 transitions, 281 flow
[2023-11-03 12:45:09,464 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=281, PETRI_PLACES=66, PETRI_TRANSITIONS=62}
[2023-11-03 12:45:09,465 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places.
[2023-11-03 12:45:09,465 INFO  L495      AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 281 flow
[2023-11-03 12:45:09,465 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 139.88888888888889) internal successors, (1259), 9 states have internal predecessors, (1259), 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)
[2023-11-03 12:45:09,465 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:09,465 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:45:09,474 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-03 12:45:09,666 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 12:45:09,666 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:45:09,667 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:09,667 INFO  L85        PathProgramCache]: Analyzing trace with hash 29635704, now seen corresponding path program 1 times
[2023-11-03 12:45:09,667 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:09,667 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671832005]
[2023-11-03 12:45:09,668 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:09,668 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:09,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:09,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-03 12:45:09,704 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:45:09,704 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671832005]
[2023-11-03 12:45:09,704 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671832005] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:45:09,704 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:45:09,704 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:45:09,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533460071]
[2023-11-03 12:45:09,704 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:45:09,705 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:45:09,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:45:09,705 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:45:09,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:45:09,731 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-11-03 12:45:09,731 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 281 flow. Second operand  has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 12:45:09,731 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:45:09,731 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-11-03 12:45:09,731 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:45:15,477 INFO  L130       PetriNetUnfolder]: 63229/93063 cut-off events.
[2023-11-03 12:45:15,478 INFO  L131       PetriNetUnfolder]: For 66511/67704 co-relation queries the response was YES.
[2023-11-03 12:45:15,887 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 243236 conditions, 93063 events. 63229/93063 cut-off events. For 66511/67704 co-relation queries the response was YES. Maximal size of possible extension queue 2023. Compared 675427 event pairs, 48365 based on Foata normal form. 0/88943 useless extension candidates. Maximal degree in co-relation 243222. Up to 78269 conditions per place. 
[2023-11-03 12:45:16,183 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 74 selfloop transitions, 12 changer transitions 0/95 dead transitions.
[2023-11-03 12:45:16,183 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 598 flow
[2023-11-03 12:45:16,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:45:16,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:45:16,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions.
[2023-11-03 12:45:16,185 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5669014084507042
[2023-11-03 12:45:16,185 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 483 transitions.
[2023-11-03 12:45:16,185 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions.
[2023-11-03 12:45:16,185 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:45:16,185 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions.
[2023-11-03 12:45:16,186 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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)
[2023-11-03 12:45:16,187 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:16,187 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:16,187 INFO  L175             Difference]: Start difference. First operand has 66 places, 62 transitions, 281 flow. Second operand 3 states and 483 transitions.
[2023-11-03 12:45:16,187 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 598 flow
[2023-11-03 12:45:16,310 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 95 transitions, 593 flow, removed 2 selfloop flow, removed 1 redundant places.
[2023-11-03 12:45:16,311 INFO  L231             Difference]: Finished difference. Result has 67 places, 70 transitions, 378 flow
[2023-11-03 12:45:16,311 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=67, PETRI_TRANSITIONS=70}
[2023-11-03 12:45:16,312 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 13 predicate places.
[2023-11-03 12:45:16,312 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 70 transitions, 378 flow
[2023-11-03 12:45:16,312 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 12:45:16,312 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:16,313 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:45:16,313 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-11-03 12:45:16,313 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:45:16,313 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:16,313 INFO  L85        PathProgramCache]: Analyzing trace with hash 1732566129, now seen corresponding path program 1 times
[2023-11-03 12:45:16,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:16,313 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066087062]
[2023-11-03 12:45:16,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:16,313 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:16,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:16,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:45:16,368 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:45:16,368 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066087062]
[2023-11-03 12:45:16,368 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066087062] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:45:16,369 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:45:16,369 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 12:45:16,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558471422]
[2023-11-03 12:45:16,369 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:45:16,369 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:45:16,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:45:16,370 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:45:16,370 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:45:16,393 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-11-03 12:45:16,394 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 378 flow. Second operand  has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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)
[2023-11-03 12:45:16,394 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:45:16,394 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-11-03 12:45:16,394 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:45:17,134 INFO  L130       PetriNetUnfolder]: 3991/8775 cut-off events.
[2023-11-03 12:45:17,135 INFO  L131       PetriNetUnfolder]: For 11403/11441 co-relation queries the response was YES.
[2023-11-03 12:45:17,152 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 25780 conditions, 8775 events. 3991/8775 cut-off events. For 11403/11441 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 76128 event pairs, 747 based on Foata normal form. 2998/11469 useless extension candidates. Maximal degree in co-relation 25765. Up to 6443 conditions per place. 
[2023-11-03 12:45:17,170 INFO  L137   encePairwiseOnDemand]: 276/284 looper letters, 57 selfloop transitions, 8 changer transitions 0/75 dead transitions.
[2023-11-03 12:45:17,170 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 511 flow
[2023-11-03 12:45:17,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:45:17,171 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:45:17,172 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions.
[2023-11-03 12:45:17,172 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5528169014084507
[2023-11-03 12:45:17,172 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 471 transitions.
[2023-11-03 12:45:17,172 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions.
[2023-11-03 12:45:17,172 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:45:17,172 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions.
[2023-11-03 12:45:17,173 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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)
[2023-11-03 12:45:17,174 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:17,174 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:17,174 INFO  L175             Difference]: Start difference. First operand has 67 places, 70 transitions, 378 flow. Second operand 3 states and 471 transitions.
[2023-11-03 12:45:17,174 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 511 flow
[2023-11-03 12:45:17,191 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 75 transitions, 505 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-03 12:45:17,192 INFO  L231             Difference]: Finished difference. Result has 68 places, 58 transitions, 292 flow
[2023-11-03 12:45:17,192 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=68, PETRI_TRANSITIONS=58}
[2023-11-03 12:45:17,193 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places.
[2023-11-03 12:45:17,193 INFO  L495      AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 292 flow
[2023-11-03 12:45:17,193 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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)
[2023-11-03 12:45:17,193 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:17,193 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:45:17,193 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-11-03 12:45:17,194 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:45:17,194 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:17,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 587722635, now seen corresponding path program 1 times
[2023-11-03 12:45:17,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:17,194 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423997146]
[2023-11-03 12:45:17,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:17,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:17,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:17,229 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-11-03 12:45:17,229 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:45:17,229 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423997146]
[2023-11-03 12:45:17,229 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423997146] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:45:17,229 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:45:17,229 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:45:17,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387154478]
[2023-11-03 12:45:17,229 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:45:17,230 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:45:17,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:45:17,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:45:17,230 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:45:17,253 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-11-03 12:45:17,253 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 58 transitions, 292 flow. Second operand  has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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)
[2023-11-03 12:45:17,253 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:45:17,254 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-11-03 12:45:17,254 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:45:18,036 INFO  L130       PetriNetUnfolder]: 3994/9075 cut-off events.
[2023-11-03 12:45:18,036 INFO  L131       PetriNetUnfolder]: For 11127/11169 co-relation queries the response was YES.
[2023-11-03 12:45:18,056 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 27763 conditions, 9075 events. 3994/9075 cut-off events. For 11127/11169 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 78413 event pairs, 3219 based on Foata normal form. 0/8862 useless extension candidates. Maximal degree in co-relation 27748. Up to 7619 conditions per place. 
[2023-11-03 12:45:18,075 INFO  L137   encePairwiseOnDemand]: 280/284 looper letters, 59 selfloop transitions, 4 changer transitions 0/72 dead transitions.
[2023-11-03 12:45:18,075 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 492 flow
[2023-11-03 12:45:18,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:45:18,076 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:45:18,077 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions.
[2023-11-03 12:45:18,077 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5481220657276995
[2023-11-03 12:45:18,077 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 467 transitions.
[2023-11-03 12:45:18,077 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 467 transitions.
[2023-11-03 12:45:18,077 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:45:18,077 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 467 transitions.
[2023-11-03 12:45:18,078 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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)
[2023-11-03 12:45:18,079 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:18,079 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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)
[2023-11-03 12:45:18,079 INFO  L175             Difference]: Start difference. First operand has 68 places, 58 transitions, 292 flow. Second operand 3 states and 467 transitions.
[2023-11-03 12:45:18,079 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 492 flow
[2023-11-03 12:45:18,089 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 12:45:18,090 INFO  L231             Difference]: Finished difference. Result has 70 places, 60 transitions, 314 flow
[2023-11-03 12:45:18,090 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=70, PETRI_TRANSITIONS=60}
[2023-11-03 12:45:18,090 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places.
[2023-11-03 12:45:18,090 INFO  L495      AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 314 flow
[2023-11-03 12:45:18,091 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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)
[2023-11-03 12:45:18,091 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:18,091 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:45:18,091 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-11-03 12:45:18,091 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-03 12:45:18,091 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:18,091 INFO  L85        PathProgramCache]: Analyzing trace with hash 705590099, now seen corresponding path program 1 times
[2023-11-03 12:45:18,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:18,091 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695370667]
[2023-11-03 12:45:18,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:18,092 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:18,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:45:18,127 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 12:45:18,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 12:45:18,151 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 12:45:18,151 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 12:45:18,151 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining)
[2023-11-03 12:45:18,152 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining)
[2023-11-03 12:45:18,153 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining)
[2023-11-03 12:45:18,153 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining)
[2023-11-03 12:45:18,153 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining)
[2023-11-03 12:45:18,153 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-11-03 12:45:18,153 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:45:18,153 WARN  L233   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 12:45:18,153 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2023-11-03 12:45:18,171 INFO  L144    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2023-11-03 12:45:18,173 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 178 places, 175 transitions, 410 flow
[2023-11-03 12:45:18,327 INFO  L130       PetriNetUnfolder]: 93/1560 cut-off events.
[2023-11-03 12:45:18,327 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2023-11-03 12:45:18,332 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 1560 events. 93/1560 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7351 event pairs, 23 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 894. Up to 80 conditions per place. 
[2023-11-03 12:45:18,332 INFO  L82        GeneralOperation]: Start removeDead. Operand has 178 places, 175 transitions, 410 flow
[2023-11-03 12:45:18,336 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 178 places, 175 transitions, 410 flow
[2023-11-03 12:45:18,336 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 12:45:18,336 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 175 transitions, 410 flow
[2023-11-03 12:45:18,336 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 175 transitions, 410 flow
[2023-11-03 12:45:18,336 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 178 places, 175 transitions, 410 flow
[2023-11-03 12:45:18,482 INFO  L130       PetriNetUnfolder]: 93/1560 cut-off events.
[2023-11-03 12:45:18,482 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2023-11-03 12:45:18,487 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 1560 events. 93/1560 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7351 event pairs, 23 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 894. Up to 80 conditions per place. 
[2023-11-03 12:45:18,505 INFO  L119        LiptonReduction]: Number of co-enabled transitions 13720
[2023-11-03 12:45:23,896 INFO  L134        LiptonReduction]: Checked pairs total: 31638
[2023-11-03 12:45:23,896 INFO  L136        LiptonReduction]: Total number of compositions: 134
[2023-11-03 12:45:23,897 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 12:45:23,898 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;@46f40df9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 12:45:23,898 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 12 error locations.
[2023-11-03 12:45:23,898 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-11-03 12:45:23,898 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 12:45:23,898 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:23,898 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-03 12:45:23,898 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] ===
[2023-11-03 12:45:23,899 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:23,899 INFO  L85        PathProgramCache]: Analyzing trace with hash 49561, now seen corresponding path program 1 times
[2023-11-03 12:45:23,899 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:23,899 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817880375]
[2023-11-03 12:45:23,899 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:23,899 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:23,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:23,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:45:23,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:45:23,906 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817880375]
[2023-11-03 12:45:23,906 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817880375] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:45:23,906 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:45:23,906 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-03 12:45:23,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133378794]
[2023-11-03 12:45:23,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:45:23,906 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-03 12:45:23,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:45:23,906 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-03 12:45:23,906 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-03 12:45:23,907 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 162 out of 309
[2023-11-03 12:45:23,907 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 57 transitions, 174 flow. Second operand  has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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)
[2023-11-03 12:45:23,907 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:45:23,907 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 309
[2023-11-03 12:45:23,907 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:45:45,745 INFO  L130       PetriNetUnfolder]: 267125/366917 cut-off events.
[2023-11-03 12:45:45,745 INFO  L131       PetriNetUnfolder]: For 40206/40206 co-relation queries the response was YES.
[2023-11-03 12:45:46,338 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 728547 conditions, 366917 events. 267125/366917 cut-off events. For 40206/40206 co-relation queries the response was YES. Maximal size of possible extension queue 8453. Compared 2747687 event pairs, 265059 based on Foata normal form. 0/344380 useless extension candidates. Maximal degree in co-relation 90441. Up to 342926 conditions per place. 
[2023-11-03 12:45:47,649 INFO  L137   encePairwiseOnDemand]: 305/309 looper letters, 41 selfloop transitions, 0 changer transitions 0/53 dead transitions.
[2023-11-03 12:45:47,649 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 248 flow
[2023-11-03 12:45:47,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-03 12:45:47,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-03 12:45:47,651 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 369 transitions.
[2023-11-03 12:45:47,651 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5970873786407767
[2023-11-03 12:45:47,651 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 369 transitions.
[2023-11-03 12:45:47,651 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 369 transitions.
[2023-11-03 12:45:47,651 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:45:47,651 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 369 transitions.
[2023-11-03 12:45:47,652 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 184.5) internal successors, (369), 2 states have internal predecessors, (369), 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)
[2023-11-03 12:45:47,653 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 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)
[2023-11-03 12:45:47,653 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 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)
[2023-11-03 12:45:47,653 INFO  L175             Difference]: Start difference. First operand has 63 places, 57 transitions, 174 flow. Second operand 2 states and 369 transitions.
[2023-11-03 12:45:47,653 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 248 flow
[2023-11-03 12:45:47,655 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:45:47,656 INFO  L231             Difference]: Finished difference. Result has 60 places, 53 transitions, 166 flow
[2023-11-03 12:45:47,656 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=60, PETRI_TRANSITIONS=53}
[2023-11-03 12:45:47,656 INFO  L288   CegarLoopForPetriNet]: 63 programPoint places, -3 predicate places.
[2023-11-03 12:45:47,657 INFO  L495      AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 166 flow
[2023-11-03 12:45:47,657 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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)
[2023-11-03 12:45:47,657 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:45:47,657 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-03 12:45:47,657 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-11-03 12:45:47,657 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] ===
[2023-11-03 12:45:47,657 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:45:47,657 INFO  L85        PathProgramCache]: Analyzing trace with hash 47619822, now seen corresponding path program 1 times
[2023-11-03 12:45:47,658 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:45:47,658 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447709210]
[2023-11-03 12:45:47,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:45:47,658 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:45:47,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:45:47,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:45:47,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:45:47,672 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447709210]
[2023-11-03 12:45:47,672 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447709210] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:45:47,672 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:45:47,672 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:45:47,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566965794]
[2023-11-03 12:45:47,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:45:47,672 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:45:47,672 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:45:47,673 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:45:47,673 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:45:47,699 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 154 out of 309
[2023-11-03 12:45:47,700 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 166 flow. Second operand  has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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)
[2023-11-03 12:45:47,700 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:45:47,700 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 309
[2023-11-03 12:45:47,700 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:46:35,254 INFO  L130       PetriNetUnfolder]: 645436/859208 cut-off events.
[2023-11-03 12:46:35,254 INFO  L131       PetriNetUnfolder]: For 54683/54683 co-relation queries the response was YES.
[2023-11-03 12:46:36,677 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1714187 conditions, 859208 events. 645436/859208 cut-off events. For 54683/54683 co-relation queries the response was YES. Maximal size of possible extension queue 14575. Compared 6219937 event pairs, 430853 based on Foata normal form. 0/817280 useless extension candidates. Maximal degree in co-relation 1714179. Up to 619363 conditions per place. 
[2023-11-03 12:46:39,728 INFO  L137   encePairwiseOnDemand]: 301/309 looper letters, 65 selfloop transitions, 7 changer transitions 0/80 dead transitions.
[2023-11-03 12:46:39,728 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 80 transitions, 364 flow
[2023-11-03 12:46:39,729 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 12:46:39,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 12:46:39,730 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions.
[2023-11-03 12:46:39,730 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5771305285868392
[2023-11-03 12:46:39,730 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 535 transitions.
[2023-11-03 12:46:39,730 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions.
[2023-11-03 12:46:39,730 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 12:46:39,730 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions.
[2023-11-03 12:46:39,731 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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)
[2023-11-03 12:46:39,732 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 309.0) internal successors, (1236), 4 states have internal predecessors, (1236), 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)
[2023-11-03 12:46:39,732 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 309.0) internal successors, (1236), 4 states have internal predecessors, (1236), 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)
[2023-11-03 12:46:39,732 INFO  L175             Difference]: Start difference. First operand has 60 places, 53 transitions, 166 flow. Second operand 3 states and 535 transitions.
[2023-11-03 12:46:39,732 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 80 transitions, 364 flow
[2023-11-03 12:46:39,734 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 80 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-03 12:46:39,735 INFO  L231             Difference]: Finished difference. Result has 64 places, 59 transitions, 220 flow
[2023-11-03 12:46:39,735 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=64, PETRI_TRANSITIONS=59}
[2023-11-03 12:46:39,736 INFO  L288   CegarLoopForPetriNet]: 63 programPoint places, 1 predicate places.
[2023-11-03 12:46:39,736 INFO  L495      AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 220 flow
[2023-11-03 12:46:39,736 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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)
[2023-11-03 12:46:39,736 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 12:46:39,736 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 12:46:39,736 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-11-03 12:46:39,736 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] ===
[2023-11-03 12:46:39,737 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 12:46:39,737 INFO  L85        PathProgramCache]: Analyzing trace with hash -1257468605, now seen corresponding path program 1 times
[2023-11-03 12:46:39,737 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 12:46:39,737 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371812608]
[2023-11-03 12:46:39,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 12:46:39,737 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 12:46:39,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 12:46:39,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 12:46:39,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 12:46:39,761 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371812608]
[2023-11-03 12:46:39,761 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371812608] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 12:46:39,761 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 12:46:39,761 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 12:46:39,761 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417993519]
[2023-11-03 12:46:39,761 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 12:46:39,761 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 12:46:39,761 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 12:46:39,762 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 12:46:39,762 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 12:46:39,790 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 152 out of 309
[2023-11-03 12:46:39,791 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 220 flow. Second operand  has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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)
[2023-11-03 12:46:39,791 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 12:46:39,791 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 309
[2023-11-03 12:46:39,791 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 12:47:46,462 INFO  L130       PetriNetUnfolder]: 807819/1083707 cut-off events.
[2023-11-03 12:47:46,462 INFO  L131       PetriNetUnfolder]: For 335065/335065 co-relation queries the response was YES.
[2023-11-03 12:47:48,751 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2453961 conditions, 1083707 events. 807819/1083707 cut-off events. For 335065/335065 co-relation queries the response was YES. Maximal size of possible extension queue 21908. Compared 8349863 event pairs, 537437 based on Foata normal form. 0/1024613 useless extension candidates. Maximal degree in co-relation 2453951. Up to 822765 conditions per place. 
