./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
[2023-10-27 12:34:22,902 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-27 12:34:22,910 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-27 12:34:22,968 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-27 12:34:22,968 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-27 12:34:22,969 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-27 12:34:22,974 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-27 12:34:22,975 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-27 12:34:22,976 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-27 12:34:22,994 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-27 12:34:22,996 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-27 12:34:22,998 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-27 12:34:22,998 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-27 12:34:23,006 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-27 12:34:23,009 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-27 12:34:23,011 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-27 12:34:23,013 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-27 12:34:23,014 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-27 12:34:23,015 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-27 12:34:23,020 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-27 12:34:23,021 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-27 12:34:23,023 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-27 12:34:23,024 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-27 12:34:23,024 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-27 12:34:23,041 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-27 12:34:23,042 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-27 12:34:23,042 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-27 12:34:23,043 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-27 12:34:23,043 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-27 12:34:23,044 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-27 12:34:23,044 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-27 12:34:23,044 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-27 12:34:23,045 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-27 12:34:23,045 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-27 12:34:23,046 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-27 12:34:23,046 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-27 12:34:23,047 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-27 12:34:23,047 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-27 12:34:23,047 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-27 12:34:23,048 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-27 12:34:23,048 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-27 12:34:23,049 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-27 12:34:23,094 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-27 12:34:23,095 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-27 12:34:23,096 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-27 12:34:23,096 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-27 12:34:23,096 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-27 12:34:23,097 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-27 12:34:23,097 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-27 12:34:23,105 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-27 12:34:23,106 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-27 12:34:23,106 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-27 12:34:23,107 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-27 12:34:23,107 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-27 12:34:23,107 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-27 12:34:23,107 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-27 12:34:23,108 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-27 12:34:23,108 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-27 12:34:23,108 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-27 12:34:23,108 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-27 12:34:23,108 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-27 12:34:23,108 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-27 12:34:23,109 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-27 12:34:23,109 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-27 12:34:23,109 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-27 12:34:23,109 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-27 12:34:23,109 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-27 12:34:23,109 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-27 12:34:23,110 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:34:23,110 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-27 12:34:23,110 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-27 12:34:23,110 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-27 12:34:23,110 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-27 12:34:23,111 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-27 12:34:23,111 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-27 12:34:23,112 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-27 12:34:23,112 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-27 12:34:23,112 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-27 12:34:23,112 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-27 12:34:23,112 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
[2023-10-27 12:34:23,503 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-27 12:34:23,530 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-27 12:34:23,543 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-27 12:34:23,544 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-27 12:34:23,545 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-27 12:34:23,545 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/per-thread-struct-tid-join.i
[2023-10-27 12:34:25,248 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-27 12:34:25,649 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-27 12:34:25,649 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/per-thread-struct-tid-join.i
[2023-10-27 12:34:25,659 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/35964df1c/15c3871204354510933012daeae6897a/FLAG664f38b1d
[2023-10-27 12:34:25,688 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/35964df1c/15c3871204354510933012daeae6897a
[2023-10-27 12:34:25,692 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-27 12:34:25,706 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-27 12:34:25,707 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-27 12:34:25,708 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-27 12:34:25,710 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-27 12:34:25,710 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:34:25" (1/1) ...
[2023-10-27 12:34:25,712 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6db657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:25, skipping insertion in model container
[2023-10-27 12:34:25,712 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:34:25" (1/1) ...
[2023-10-27 12:34:25,717 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-27 12:34:25,793 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-27 12:34:26,032 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-10-27 12:34:26,430 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:34:26,457 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-27 12:34:26,476 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-10-27 12:34:26,526 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:34:26,621 INFO  L208         MainTranslator]: Completed translation
[2023-10-27 12:34:26,621 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26 WrapperNode
[2023-10-27 12:34:26,622 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-27 12:34:26,623 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-27 12:34:26,623 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-27 12:34:26,623 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-27 12:34:26,633 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,662 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,699 INFO  L138                Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84
[2023-10-27 12:34:26,706 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-27 12:34:26,707 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-27 12:34:26,710 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-27 12:34:26,710 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-27 12:34:26,733 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,733 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,752 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,755 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,762 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,772 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,783 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,792 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,795 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-27 12:34:26,795 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-27 12:34:26,795 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-27 12:34:26,796 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-27 12:34:26,796 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (1/1) ...
[2023-10-27 12:34:26,800 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:34:26,833 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:34:26,846 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-10-27 12:34:26,888 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-10-27 12:34:26,894 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-10-27 12:34:26,895 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-27 12:34:26,896 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-27 12:34:26,896 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-27 12:34:26,897 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-27 12:34:26,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-27 12:34:26,898 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-27 12:34:27,164 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-27 12:34:27,165 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-27 12:34:27,597 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-27 12:34:27,603 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-27 12:34:27,610 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-10-27 12:34:27,612 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:34:27 BoogieIcfgContainer
[2023-10-27 12:34:27,613 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-27 12:34:27,626 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-27 12:34:27,626 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-27 12:34:27,628 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-27 12:34:27,629 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:34:25" (1/3) ...
[2023-10-27 12:34:27,629 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bdc023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:34:27, skipping insertion in model container
[2023-10-27 12:34:27,629 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:34:26" (2/3) ...
[2023-10-27 12:34:27,630 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bdc023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:34:27, skipping insertion in model container
[2023-10-27 12:34:27,630 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:34:27" (3/3) ...
[2023-10-27 12:34:27,631 INFO  L112   eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i
[2023-10-27 12:34:27,642 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-27 12:34:27,668 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-27 12:34:27,668 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-10-27 12:34:27,669 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-27 12:34:27,789 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-10-27 12:34:27,833 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 110 places, 111 transitions, 230 flow
[2023-10-27 12:34:27,925 INFO  L130       PetriNetUnfolder]: 6/155 cut-off events.
[2023-10-27 12:34:27,933 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-27 12:34:27,937 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. 
[2023-10-27 12:34:27,938 INFO  L82        GeneralOperation]: Start removeDead. Operand has 110 places, 111 transitions, 230 flow
[2023-10-27 12:34:27,946 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 110 places, 111 transitions, 230 flow
[2023-10-27 12:34:27,949 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:34:27,975 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 111 transitions, 230 flow
[2023-10-27 12:34:27,989 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 111 transitions, 230 flow
[2023-10-27 12:34:27,991 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 110 places, 111 transitions, 230 flow
[2023-10-27 12:34:28,082 INFO  L130       PetriNetUnfolder]: 6/155 cut-off events.
[2023-10-27 12:34:28,084 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-27 12:34:28,084 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. 
[2023-10-27 12:34:28,086 INFO  L119        LiptonReduction]: Number of co-enabled transitions 1400
[2023-10-27 12:34:34,837 INFO  L134        LiptonReduction]: Checked pairs total: 2095
[2023-10-27 12:34:34,837 INFO  L136        LiptonReduction]: Total number of compositions: 107
[2023-10-27 12:34:34,874 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:34:34,881 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;@369b59a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:34:34,882 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2023-10-27 12:34:34,887 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-27 12:34:34,887 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:34:34,888 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:34,889 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-27 12:34:34,890 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)] ===
[2023-10-27 12:34:34,900 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:34,901 INFO  L85        PathProgramCache]: Analyzing trace with hash 12699, now seen corresponding path program 1 times
[2023-10-27 12:34:34,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:34,922 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425235781]
[2023-10-27 12:34:34,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:34,923 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:35,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:35,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:35,191 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:35,192 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425235781]
[2023-10-27 12:34:35,192 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425235781] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:35,209 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:35,210 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-27 12:34:35,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561245579]
[2023-10-27 12:34:35,211 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:35,218 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-27 12:34:35,231 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:35,257 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-27 12:34:35,264 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-27 12:34:35,267 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 106 out of 218
[2023-10-27 12:34:35,277 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)
[2023-10-27 12:34:35,277 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:35,278 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 218
[2023-10-27 12:34:35,278 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:35,369 INFO  L130       PetriNetUnfolder]: 19/66 cut-off events.
[2023-10-27 12:34:35,369 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-27 12:34:35,369 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. 
[2023-10-27 12:34:35,371 INFO  L137   encePairwiseOnDemand]: 214/218 looper letters, 13 selfloop transitions, 0 changer transitions 0/17 dead transitions.
[2023-10-27 12:34:35,371 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 17 transitions, 68 flow
[2023-10-27 12:34:35,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-27 12:34:35,374 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-27 12:34:35,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 229 transitions.
[2023-10-27 12:34:35,397 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5252293577981652
[2023-10-27 12:34:35,398 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 229 transitions.
[2023-10-27 12:34:35,399 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 229 transitions.
[2023-10-27 12:34:35,400 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:35,402 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 229 transitions.
[2023-10-27 12:34:35,407 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)
[2023-10-27 12:34:35,412 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)
[2023-10-27 12:34:35,413 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)
[2023-10-27 12:34:35,427 INFO  L175             Difference]: Start difference. First operand has 23 places, 21 transitions, 50 flow. Second operand 2 states and 229 transitions.
[2023-10-27 12:34:35,428 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 17 transitions, 68 flow
[2023-10-27 12:34:35,429 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:34:35,430 INFO  L231             Difference]: Finished difference. Result has 20 places, 17 transitions, 42 flow
[2023-10-27 12:34:35,432 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}
[2023-10-27 12:34:35,435 INFO  L288   CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places.
[2023-10-27 12:34:35,435 INFO  L495      AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 42 flow
[2023-10-27 12:34:35,436 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)
[2023-10-27 12:34:35,436 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:35,437 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:34:35,437 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-27 12:34:35,438 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)] ===
[2023-10-27 12:34:35,438 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:35,440 INFO  L85        PathProgramCache]: Analyzing trace with hash 12163348, now seen corresponding path program 1 times
[2023-10-27 12:34:35,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:35,441 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903674343]
[2023-10-27 12:34:35,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:35,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:35,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:35,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:35,592 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:35,592 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903674343]
[2023-10-27 12:34:35,595 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903674343] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:35,600 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:35,600 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:34:35,600 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455451299]
[2023-10-27 12:34:35,600 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:35,601 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:34:35,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:35,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:34:35,619 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:34:35,632 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 102 out of 218
[2023-10-27 12:34:35,632 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)
[2023-10-27 12:34:35,633 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:35,633 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 218
[2023-10-27 12:34:35,633 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:35,723 INFO  L130       PetriNetUnfolder]: 24/81 cut-off events.
[2023-10-27 12:34:35,731 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-27 12:34:35,733 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. 
[2023-10-27 12:34:35,734 INFO  L137   encePairwiseOnDemand]: 214/218 looper letters, 14 selfloop transitions, 3 changer transitions 3/22 dead transitions.
[2023-10-27 12:34:35,734 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 92 flow
[2023-10-27 12:34:35,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:34:35,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:34:35,739 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions.
[2023-10-27 12:34:35,740 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5
[2023-10-27 12:34:35,740 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 327 transitions.
[2023-10-27 12:34:35,740 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions.
[2023-10-27 12:34:35,741 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:35,741 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions.
[2023-10-27 12:34:35,743 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)
[2023-10-27 12:34:35,745 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)
[2023-10-27 12:34:35,746 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)
[2023-10-27 12:34:35,746 INFO  L175             Difference]: Start difference. First operand has 20 places, 17 transitions, 42 flow. Second operand 3 states and 327 transitions.
[2023-10-27 12:34:35,746 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 92 flow
[2023-10-27 12:34:35,747 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 92 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:34:35,748 INFO  L231             Difference]: Finished difference. Result has 24 places, 17 transitions, 57 flow
[2023-10-27 12:34:35,749 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}
[2023-10-27 12:34:35,750 INFO  L288   CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places.
[2023-10-27 12:34:35,751 INFO  L495      AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 57 flow
[2023-10-27 12:34:35,751 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)
[2023-10-27 12:34:35,765 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:35,765 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-27 12:34:35,765 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-27 12:34:35,766 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)] ===
[2023-10-27 12:34:35,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:35,767 INFO  L85        PathProgramCache]: Analyzing trace with hash -1145348911, now seen corresponding path program 1 times
[2023-10-27 12:34:35,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:35,768 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514432669]
[2023-10-27 12:34:35,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:35,768 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:35,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:34:35,893 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:34:35,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:34:35,983 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:34:35,983 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:34:35,985 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining)
[2023-10-27 12:34:35,986 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining)
[2023-10-27 12:34:35,987 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining)
[2023-10-27 12:34:35,988 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining)
[2023-10-27 12:34:35,988 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining)
[2023-10-27 12:34:35,988 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining)
[2023-10-27 12:34:35,991 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining)
[2023-10-27 12:34:35,992 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining)
[2023-10-27 12:34:35,992 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-27 12:34:35,992 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-10-27 12:34:36,001 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:34:36,002 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-27 12:34:36,040 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-10-27 12:34:36,044 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 272 flow
[2023-10-27 12:34:36,094 INFO  L130       PetriNetUnfolder]: 11/275 cut-off events.
[2023-10-27 12:34:36,113 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-27 12:34:36,114 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. 
[2023-10-27 12:34:36,114 INFO  L82        GeneralOperation]: Start removeDead. Operand has 127 places, 127 transitions, 272 flow
[2023-10-27 12:34:36,116 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 272 flow
[2023-10-27 12:34:36,116 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:34:36,116 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 272 flow
[2023-10-27 12:34:36,116 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 272 flow
[2023-10-27 12:34:36,117 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 272 flow
[2023-10-27 12:34:36,158 INFO  L130       PetriNetUnfolder]: 11/275 cut-off events.
[2023-10-27 12:34:36,159 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-27 12:34:36,160 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. 
[2023-10-27 12:34:36,166 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4060
[2023-10-27 12:34:42,181 INFO  L134        LiptonReduction]: Checked pairs total: 8070
[2023-10-27 12:34:42,181 INFO  L136        LiptonReduction]: Total number of compositions: 109
[2023-10-27 12:34:42,183 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:34:42,183 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;@369b59a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:34:42,183 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2023-10-27 12:34:42,184 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-27 12:34:42,184 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:34:42,184 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:42,184 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-27 12:34:42,185 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)] ===
[2023-10-27 12:34:42,185 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:42,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 20759, now seen corresponding path program 1 times
[2023-10-27 12:34:42,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:42,185 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852055750]
[2023-10-27 12:34:42,185 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:42,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:42,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:42,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:42,239 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:42,239 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852055750]
[2023-10-27 12:34:42,241 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852055750] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:42,241 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:42,241 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-27 12:34:42,241 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778577748]
[2023-10-27 12:34:42,242 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:42,242 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-27 12:34:42,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:42,243 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-27 12:34:42,243 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-27 12:34:42,243 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 120 out of 236
[2023-10-27 12:34:42,244 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)
[2023-10-27 12:34:42,244 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:42,244 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 236
[2023-10-27 12:34:42,244 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:42,510 INFO  L130       PetriNetUnfolder]: 378/759 cut-off events.
[2023-10-27 12:34:42,510 INFO  L131       PetriNetUnfolder]: For 38/38 co-relation queries the response was YES.
[2023-10-27 12:34:42,514 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. 
[2023-10-27 12:34:42,517 INFO  L137   encePairwiseOnDemand]: 232/236 looper letters, 21 selfloop transitions, 0 changer transitions 0/29 dead transitions.
[2023-10-27 12:34:42,519 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 118 flow
[2023-10-27 12:34:42,520 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-27 12:34:42,520 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-27 12:34:42,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 265 transitions.
[2023-10-27 12:34:42,520 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5614406779661016
[2023-10-27 12:34:42,521 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 265 transitions.
[2023-10-27 12:34:42,521 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 265 transitions.
[2023-10-27 12:34:42,521 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:42,521 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 265 transitions.
[2023-10-27 12:34:42,522 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)
[2023-10-27 12:34:42,524 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)
[2023-10-27 12:34:42,525 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)
[2023-10-27 12:34:42,525 INFO  L175             Difference]: Start difference. First operand has 36 places, 33 transitions, 84 flow. Second operand 2 states and 265 transitions.
[2023-10-27 12:34:42,525 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 118 flow
[2023-10-27 12:34:42,542 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:34:42,543 INFO  L231             Difference]: Finished difference. Result has 33 places, 29 transitions, 76 flow
[2023-10-27 12:34:42,543 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}
[2023-10-27 12:34:42,545 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places.
[2023-10-27 12:34:42,545 INFO  L495      AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 76 flow
[2023-10-27 12:34:42,546 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)
[2023-10-27 12:34:42,546 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:42,546 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:34:42,546 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-27 12:34:42,546 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)] ===
[2023-10-27 12:34:42,547 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:42,547 INFO  L85        PathProgramCache]: Analyzing trace with hash 19923905, now seen corresponding path program 1 times
[2023-10-27 12:34:42,547 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:42,548 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610375961]
[2023-10-27 12:34:42,548 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:42,548 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:42,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:42,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:42,601 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:42,601 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610375961]
[2023-10-27 12:34:42,601 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610375961] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:42,601 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:42,601 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:34:42,601 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110858296]
[2023-10-27 12:34:42,602 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:42,602 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:34:42,602 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:42,603 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:34:42,603 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:34:42,616 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 115 out of 236
[2023-10-27 12:34:42,616 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)
[2023-10-27 12:34:42,617 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:42,617 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 236
[2023-10-27 12:34:42,617 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:42,868 INFO  L130       PetriNetUnfolder]: 679/1281 cut-off events.
[2023-10-27 12:34:42,874 INFO  L131       PetriNetUnfolder]: For 42/42 co-relation queries the response was YES.
[2023-10-27 12:34:42,875 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. 
[2023-10-27 12:34:42,879 INFO  L137   encePairwiseOnDemand]: 231/236 looper letters, 32 selfloop transitions, 4 changer transitions 0/41 dead transitions.
[2023-10-27 12:34:42,879 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 172 flow
[2023-10-27 12:34:42,880 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:34:42,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:34:42,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions.
[2023-10-27 12:34:42,894 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.53954802259887
[2023-10-27 12:34:42,894 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 382 transitions.
[2023-10-27 12:34:42,894 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions.
[2023-10-27 12:34:42,895 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:42,895 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions.
[2023-10-27 12:34:42,896 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)
[2023-10-27 12:34:42,897 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)
[2023-10-27 12:34:42,898 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)
[2023-10-27 12:34:42,898 INFO  L175             Difference]: Start difference. First operand has 33 places, 29 transitions, 76 flow. Second operand 3 states and 382 transitions.
[2023-10-27 12:34:42,898 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 172 flow
[2023-10-27 12:34:42,900 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:34:42,900 INFO  L231             Difference]: Finished difference. Result has 37 places, 32 transitions, 106 flow
[2023-10-27 12:34:42,900 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}
[2023-10-27 12:34:42,902 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places.
[2023-10-27 12:34:42,902 INFO  L495      AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 106 flow
[2023-10-27 12:34:42,902 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)
[2023-10-27 12:34:42,903 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:42,903 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:34:42,903 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-27 12:34:42,903 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-10-27 12:34:42,904 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:42,904 INFO  L85        PathProgramCache]: Analyzing trace with hash -2030480634, now seen corresponding path program 1 times
[2023-10-27 12:34:42,904 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:42,904 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721605965]
[2023-10-27 12:34:42,904 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:42,905 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:42,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:42,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:42,975 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:42,975 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721605965]
[2023-10-27 12:34:42,977 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721605965] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:42,977 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:42,977 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:34:42,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127303842]
[2023-10-27 12:34:42,978 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:42,978 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:34:42,978 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:42,979 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:34:42,979 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:34:43,003 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 113 out of 236
[2023-10-27 12:34:43,003 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)
[2023-10-27 12:34:43,003 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:43,004 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 236
[2023-10-27 12:34:43,004 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:43,346 INFO  L130       PetriNetUnfolder]: 739/1420 cut-off events.
[2023-10-27 12:34:43,346 INFO  L131       PetriNetUnfolder]: For 335/335 co-relation queries the response was YES.
[2023-10-27 12:34:43,348 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. 
[2023-10-27 12:34:43,352 INFO  L137   encePairwiseOnDemand]: 230/236 looper letters, 35 selfloop transitions, 7 changer transitions 0/49 dead transitions.
[2023-10-27 12:34:43,352 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 49 transitions, 242 flow
[2023-10-27 12:34:43,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:34:43,353 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:34:43,353 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions.
[2023-10-27 12:34:43,354 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5353107344632768
[2023-10-27 12:34:43,354 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 379 transitions.
[2023-10-27 12:34:43,354 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions.
[2023-10-27 12:34:43,354 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:43,354 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions.
[2023-10-27 12:34:43,355 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)
[2023-10-27 12:34:43,369 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)
[2023-10-27 12:34:43,370 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)
[2023-10-27 12:34:43,370 INFO  L175             Difference]: Start difference. First operand has 37 places, 32 transitions, 106 flow. Second operand 3 states and 379 transitions.
[2023-10-27 12:34:43,370 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 49 transitions, 242 flow
[2023-10-27 12:34:43,375 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:34:43,376 INFO  L231             Difference]: Finished difference. Result has 39 places, 37 transitions, 154 flow
[2023-10-27 12:34:43,377 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}
[2023-10-27 12:34:43,379 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places.
[2023-10-27 12:34:43,379 INFO  L495      AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 154 flow
[2023-10-27 12:34:43,380 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)
[2023-10-27 12:34:43,393 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:43,393 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:34:43,393 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-27 12:34:43,394 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)] ===
[2023-10-27 12:34:43,394 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:43,394 INFO  L85        PathProgramCache]: Analyzing trace with hash 132359137, now seen corresponding path program 1 times
[2023-10-27 12:34:43,394 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:43,394 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276803054]
[2023-10-27 12:34:43,394 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:43,395 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:43,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:43,524 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:43,524 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:43,526 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276803054]
[2023-10-27 12:34:43,526 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276803054] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-27 12:34:43,527 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044248853]
[2023-10-27 12:34:43,527 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:43,527 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-27 12:34:43,527 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:34:43,553 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-27 12:34:43,582 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-10-27 12:34:43,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:43,727 INFO  L263         TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-10-27 12:34:43,730 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-27 12:34:43,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:43,835 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-27 12:34:43,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:43,878 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044248853] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-27 12:34:43,879 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-27 12:34:43,879 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2023-10-27 12:34:43,879 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087227100]
[2023-10-27 12:34:43,886 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-27 12:34:43,886 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-10-27 12:34:43,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:43,887 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-10-27 12:34:43,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-10-27 12:34:44,168 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 110 out of 236
[2023-10-27 12:34:44,169 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)
[2023-10-27 12:34:44,176 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:44,176 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 236
[2023-10-27 12:34:44,176 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:44,545 INFO  L130       PetriNetUnfolder]: 349/721 cut-off events.
[2023-10-27 12:34:44,545 INFO  L131       PetriNetUnfolder]: For 446/519 co-relation queries the response was YES.
[2023-10-27 12:34:44,546 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. 
[2023-10-27 12:34:44,548 INFO  L137   encePairwiseOnDemand]: 230/236 looper letters, 38 selfloop transitions, 5 changer transitions 15/68 dead transitions.
[2023-10-27 12:34:44,554 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 374 flow
[2023-10-27 12:34:44,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-10-27 12:34:44,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-10-27 12:34:44,556 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 819 transitions.
[2023-10-27 12:34:44,556 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4957627118644068
[2023-10-27 12:34:44,557 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 819 transitions.
[2023-10-27 12:34:44,557 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 819 transitions.
[2023-10-27 12:34:44,557 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:44,559 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 819 transitions.
[2023-10-27 12:34:44,561 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:34:44,563 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)
[2023-10-27 12:34:44,577 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)
[2023-10-27 12:34:44,577 INFO  L175             Difference]: Start difference. First operand has 39 places, 37 transitions, 154 flow. Second operand 7 states and 819 transitions.
[2023-10-27 12:34:44,578 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 374 flow
[2023-10-27 12:34:44,580 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 68 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:34:44,581 INFO  L231             Difference]: Finished difference. Result has 46 places, 38 transitions, 166 flow
[2023-10-27 12:34:44,581 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}
[2023-10-27 12:34:44,582 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places.
[2023-10-27 12:34:44,582 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 166 flow
[2023-10-27 12:34:44,582 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)
[2023-10-27 12:34:44,583 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:44,583 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-27 12:34:44,590 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-10-27 12:34:44,787 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
[2023-10-27 12:34:44,787 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)] ===
[2023-10-27 12:34:44,788 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:44,788 INFO  L85        PathProgramCache]: Analyzing trace with hash 1540330148, now seen corresponding path program 1 times
[2023-10-27 12:34:44,788 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:44,788 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710273687]
[2023-10-27 12:34:44,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:44,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:44,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:34:44,869 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:34:44,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:34:44,914 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:34:44,914 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:34:44,914 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining)
[2023-10-27 12:34:44,914 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining)
[2023-10-27 12:34:44,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining)
[2023-10-27 12:34:44,916 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-10-27 12:34:44,916 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2023-10-27 12:34:44,917 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:34:44,917 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-27 12:34:44,951 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-10-27 12:34:44,953 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 144 places, 143 transitions, 316 flow
[2023-10-27 12:34:45,103 INFO  L130       PetriNetUnfolder]: 21/478 cut-off events.
[2023-10-27 12:34:45,103 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-27 12:34:45,104 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. 
[2023-10-27 12:34:45,104 INFO  L82        GeneralOperation]: Start removeDead. Operand has 144 places, 143 transitions, 316 flow
[2023-10-27 12:34:45,105 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 144 places, 143 transitions, 316 flow
[2023-10-27 12:34:45,106 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:34:45,106 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 143 transitions, 316 flow
[2023-10-27 12:34:45,106 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 143 transitions, 316 flow
[2023-10-27 12:34:45,106 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 144 places, 143 transitions, 316 flow
[2023-10-27 12:34:45,171 INFO  L130       PetriNetUnfolder]: 21/478 cut-off events.
[2023-10-27 12:34:45,171 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-27 12:34:45,172 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. 
[2023-10-27 12:34:45,177 INFO  L119        LiptonReduction]: Number of co-enabled transitions 6804
[2023-10-27 12:34:51,804 INFO  L134        LiptonReduction]: Checked pairs total: 14999
[2023-10-27 12:34:51,804 INFO  L136        LiptonReduction]: Total number of compositions: 116
[2023-10-27 12:34:51,805 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:34:51,806 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;@369b59a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:34:51,806 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2023-10-27 12:34:51,807 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-27 12:34:51,807 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:34:51,807 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:51,807 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-27 12:34:51,807 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)] ===
[2023-10-27 12:34:51,807 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:51,807 INFO  L85        PathProgramCache]: Analyzing trace with hash 29562, now seen corresponding path program 1 times
[2023-10-27 12:34:51,807 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:51,807 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500339503]
[2023-10-27 12:34:51,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:51,807 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:51,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:51,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:51,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:51,840 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500339503]
[2023-10-27 12:34:51,840 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500339503] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:51,840 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:51,840 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-27 12:34:51,840 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493275172]
[2023-10-27 12:34:51,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:51,842 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-27 12:34:51,842 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:51,843 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-27 12:34:51,843 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-27 12:34:51,843 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 134 out of 259
[2023-10-27 12:34:51,843 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)
[2023-10-27 12:34:51,843 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:51,844 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 259
[2023-10-27 12:34:51,844 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:52,598 INFO  L130       PetriNetUnfolder]: 2816/4880 cut-off events.
[2023-10-27 12:34:52,598 INFO  L131       PetriNetUnfolder]: For 391/391 co-relation queries the response was YES.
[2023-10-27 12:34:52,603 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. 
[2023-10-27 12:34:52,637 INFO  L137   encePairwiseOnDemand]: 255/259 looper letters, 26 selfloop transitions, 0 changer transitions 0/37 dead transitions.
[2023-10-27 12:34:52,638 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 156 flow
[2023-10-27 12:34:52,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-27 12:34:52,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-27 12:34:52,654 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 298 transitions.
[2023-10-27 12:34:52,654 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5752895752895753
[2023-10-27 12:34:52,655 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 298 transitions.
[2023-10-27 12:34:52,655 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 298 transitions.
[2023-10-27 12:34:52,655 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:52,655 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 298 transitions.
[2023-10-27 12:34:52,656 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)
[2023-10-27 12:34:52,657 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)
[2023-10-27 12:34:52,657 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)
[2023-10-27 12:34:52,657 INFO  L175             Difference]: Start difference. First operand has 45 places, 41 transitions, 112 flow. Second operand 2 states and 298 transitions.
[2023-10-27 12:34:52,657 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 156 flow
[2023-10-27 12:34:52,659 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 156 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:34:52,659 INFO  L231             Difference]: Finished difference. Result has 42 places, 37 transitions, 104 flow
[2023-10-27 12:34:52,660 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}
[2023-10-27 12:34:52,660 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places.
[2023-10-27 12:34:52,661 INFO  L495      AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 104 flow
[2023-10-27 12:34:52,661 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)
[2023-10-27 12:34:52,661 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:52,661 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:34:52,661 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-10-27 12:34:52,661 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)] ===
[2023-10-27 12:34:52,668 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:52,669 INFO  L85        PathProgramCache]: Analyzing trace with hash 28387591, now seen corresponding path program 1 times
[2023-10-27 12:34:52,669 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:52,669 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665988340]
[2023-10-27 12:34:52,669 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:52,669 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:52,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:52,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:52,701 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:52,701 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665988340]
[2023-10-27 12:34:52,702 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665988340] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:52,702 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:52,702 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:34:52,702 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512826502]
[2023-10-27 12:34:52,702 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:52,703 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:34:52,703 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:52,704 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:34:52,704 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:34:52,717 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 128 out of 259
[2023-10-27 12:34:52,717 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)
[2023-10-27 12:34:52,717 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:52,718 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 259
[2023-10-27 12:34:52,718 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:54,064 INFO  L130       PetriNetUnfolder]: 6464/10469 cut-off events.
[2023-10-27 12:34:54,065 INFO  L131       PetriNetUnfolder]: For 513/513 co-relation queries the response was YES.
[2023-10-27 12:34:54,085 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. 
[2023-10-27 12:34:54,142 INFO  L137   encePairwiseOnDemand]: 253/259 looper letters, 41 selfloop transitions, 5 changer transitions 0/53 dead transitions.
[2023-10-27 12:34:54,155 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 228 flow
[2023-10-27 12:34:54,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:34:54,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:34:54,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions.
[2023-10-27 12:34:54,157 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5546975546975547
[2023-10-27 12:34:54,157 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 431 transitions.
[2023-10-27 12:34:54,157 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 431 transitions.
[2023-10-27 12:34:54,158 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:54,158 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 431 transitions.
[2023-10-27 12:34:54,159 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)
[2023-10-27 12:34:54,160 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)
[2023-10-27 12:34:54,161 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)
[2023-10-27 12:34:54,161 INFO  L175             Difference]: Start difference. First operand has 42 places, 37 transitions, 104 flow. Second operand 3 states and 431 transitions.
[2023-10-27 12:34:54,161 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 228 flow
[2023-10-27 12:34:54,163 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:34:54,168 INFO  L231             Difference]: Finished difference. Result has 46 places, 41 transitions, 142 flow
[2023-10-27 12:34:54,169 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}
[2023-10-27 12:34:54,170 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places.
[2023-10-27 12:34:54,170 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 142 flow
[2023-10-27 12:34:54,171 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)
[2023-10-27 12:34:54,171 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:54,171 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:34:54,171 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-10-27 12:34:54,171 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-10-27 12:34:54,172 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:54,172 INFO  L85        PathProgramCache]: Analyzing trace with hash 1023113375, now seen corresponding path program 1 times
[2023-10-27 12:34:54,172 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:54,172 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325924829]
[2023-10-27 12:34:54,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:54,175 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:54,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:54,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:54,237 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:54,237 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325924829]
[2023-10-27 12:34:54,237 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325924829] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:54,237 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:54,238 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:34:54,238 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785468753]
[2023-10-27 12:34:54,238 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:54,238 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:34:54,238 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:54,239 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:34:54,239 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:34:54,255 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 126 out of 259
[2023-10-27 12:34:54,256 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)
[2023-10-27 12:34:54,256 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:54,256 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 259
[2023-10-27 12:34:54,256 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:55,879 INFO  L130       PetriNetUnfolder]: 7755/12626 cut-off events.
[2023-10-27 12:34:55,890 INFO  L131       PetriNetUnfolder]: For 3803/3875 co-relation queries the response was YES.
[2023-10-27 12:34:55,909 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. 
[2023-10-27 12:34:55,991 INFO  L137   encePairwiseOnDemand]: 252/259 looper letters, 47 selfloop transitions, 9 changer transitions 0/65 dead transitions.
[2023-10-27 12:34:55,991 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 65 transitions, 336 flow
[2023-10-27 12:34:55,991 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:34:55,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:34:55,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions.
[2023-10-27 12:34:55,993 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5534105534105535
[2023-10-27 12:34:55,993 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 430 transitions.
[2023-10-27 12:34:55,993 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions.
[2023-10-27 12:34:55,993 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:55,993 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions.
[2023-10-27 12:34:55,994 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)
[2023-10-27 12:34:55,995 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)
[2023-10-27 12:34:55,995 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)
[2023-10-27 12:34:55,996 INFO  L175             Difference]: Start difference. First operand has 46 places, 41 transitions, 142 flow. Second operand 3 states and 430 transitions.
[2023-10-27 12:34:55,996 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 65 transitions, 336 flow
[2023-10-27 12:34:56,106 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:34:56,109 INFO  L231             Difference]: Finished difference. Result has 48 places, 48 transitions, 208 flow
[2023-10-27 12:34:56,110 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}
[2023-10-27 12:34:56,110 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 3 predicate places.
[2023-10-27 12:34:56,111 INFO  L495      AbstractCegarLoop]: Abstraction has has 48 places, 48 transitions, 208 flow
[2023-10-27 12:34:56,111 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)
[2023-10-27 12:34:56,111 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:56,111 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:34:56,111 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-10-27 12:34:56,112 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-10-27 12:34:56,112 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:56,112 INFO  L85        PathProgramCache]: Analyzing trace with hash -887283486, now seen corresponding path program 1 times
[2023-10-27 12:34:56,112 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:56,124 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261032375]
[2023-10-27 12:34:56,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:56,124 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:56,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:56,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-27 12:34:56,197 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:56,197 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261032375]
[2023-10-27 12:34:56,197 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261032375] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:34:56,197 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:34:56,197 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:34:56,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509264323]
[2023-10-27 12:34:56,198 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:34:56,198 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:34:56,198 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:56,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:34:56,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:34:56,226 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 126 out of 259
[2023-10-27 12:34:56,227 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)
[2023-10-27 12:34:56,227 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:56,227 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 259
[2023-10-27 12:34:56,227 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:57,789 INFO  L130       PetriNetUnfolder]: 10028/16133 cut-off events.
[2023-10-27 12:34:57,790 INFO  L131       PetriNetUnfolder]: For 12499/12818 co-relation queries the response was YES.
[2023-10-27 12:34:57,814 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. 
[2023-10-27 12:34:57,952 INFO  L137   encePairwiseOnDemand]: 252/259 looper letters, 53 selfloop transitions, 14 changer transitions 0/76 dead transitions.
[2023-10-27 12:34:57,953 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 465 flow
[2023-10-27 12:34:57,953 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:34:57,953 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:34:57,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions.
[2023-10-27 12:34:57,954 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5521235521235521
[2023-10-27 12:34:57,954 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 429 transitions.
[2023-10-27 12:34:57,955 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions.
[2023-10-27 12:34:57,955 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:57,955 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions.
[2023-10-27 12:34:57,956 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)
[2023-10-27 12:34:57,957 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)
[2023-10-27 12:34:57,957 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)
[2023-10-27 12:34:57,958 INFO  L175             Difference]: Start difference. First operand has 48 places, 48 transitions, 208 flow. Second operand 3 states and 429 transitions.
[2023-10-27 12:34:57,958 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 465 flow
[2023-10-27 12:34:58,110 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:34:58,126 INFO  L231             Difference]: Finished difference. Result has 50 places, 58 transitions, 320 flow
[2023-10-27 12:34:58,127 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}
[2023-10-27 12:34:58,128 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 5 predicate places.
[2023-10-27 12:34:58,128 INFO  L495      AbstractCegarLoop]: Abstraction has has 50 places, 58 transitions, 320 flow
[2023-10-27 12:34:58,128 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)
[2023-10-27 12:34:58,128 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:58,128 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:34:58,128 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-10-27 12:34:58,129 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)] ===
[2023-10-27 12:34:58,129 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:58,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 1976071896, now seen corresponding path program 1 times
[2023-10-27 12:34:58,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:58,129 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210099430]
[2023-10-27 12:34:58,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:58,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:58,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:58,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:58,221 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:34:58,221 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210099430]
[2023-10-27 12:34:58,222 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210099430] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-27 12:34:58,222 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323300537]
[2023-10-27 12:34:58,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:58,222 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-27 12:34:58,222 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:34:58,235 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-27 12:34:58,280 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-10-27 12:34:58,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:34:58,386 INFO  L263         TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-10-27 12:34:58,387 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-27 12:34:58,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:58,434 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-27 12:34:58,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:34:58,453 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323300537] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-27 12:34:58,453 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-27 12:34:58,453 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2023-10-27 12:34:58,454 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942234827]
[2023-10-27 12:34:58,454 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-27 12:34:58,454 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-10-27 12:34:58,454 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:34:58,454 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-10-27 12:34:58,455 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-10-27 12:34:58,605 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 124 out of 259
[2023-10-27 12:34:58,606 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)
[2023-10-27 12:34:58,606 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:34:58,606 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 259
[2023-10-27 12:34:58,606 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:34:59,537 INFO  L130       PetriNetUnfolder]: 4893/8294 cut-off events.
[2023-10-27 12:34:59,537 INFO  L131       PetriNetUnfolder]: For 10562/12770 co-relation queries the response was YES.
[2023-10-27 12:34:59,547 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. 
[2023-10-27 12:34:59,623 INFO  L137   encePairwiseOnDemand]: 253/259 looper letters, 76 selfloop transitions, 6 changer transitions 4/104 dead transitions.
[2023-10-27 12:34:59,623 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 104 transitions, 679 flow
[2023-10-27 12:34:59,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-10-27 12:34:59,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-10-27 12:34:59,626 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 929 transitions.
[2023-10-27 12:34:59,626 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5124103695532267
[2023-10-27 12:34:59,626 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 929 transitions.
[2023-10-27 12:34:59,626 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 929 transitions.
[2023-10-27 12:34:59,627 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:34:59,627 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 929 transitions.
[2023-10-27 12:34:59,630 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)
[2023-10-27 12:34:59,632 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)
[2023-10-27 12:34:59,632 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)
[2023-10-27 12:34:59,632 INFO  L175             Difference]: Start difference. First operand has 50 places, 58 transitions, 320 flow. Second operand 7 states and 929 transitions.
[2023-10-27 12:34:59,632 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 104 transitions, 679 flow
[2023-10-27 12:34:59,654 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 104 transitions, 639 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:34:59,655 INFO  L231             Difference]: Finished difference. Result has 57 places, 60 transitions, 325 flow
[2023-10-27 12:34:59,655 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}
[2023-10-27 12:34:59,656 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places.
[2023-10-27 12:34:59,656 INFO  L495      AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 325 flow
[2023-10-27 12:34:59,656 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)
[2023-10-27 12:34:59,656 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:34:59,656 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:34:59,663 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-10-27 12:34:59,860 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
[2023-10-27 12:34:59,861 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-10-27 12:34:59,861 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:34:59,861 INFO  L85        PathProgramCache]: Analyzing trace with hash -1414615787, now seen corresponding path program 1 times
[2023-10-27 12:34:59,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:34:59,862 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620722065]
[2023-10-27 12:34:59,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:34:59,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:34:59,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:00,041 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:00,042 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:00,042 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620722065]
[2023-10-27 12:35:00,042 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620722065] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:00,042 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:00,042 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-27 12:35:00,042 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063658389]
[2023-10-27 12:35:00,044 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:00,044 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:35:00,045 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:00,045 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:35:00,045 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:35:00,059 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 127 out of 259
[2023-10-27 12:35:00,060 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)
[2023-10-27 12:35:00,060 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:00,060 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 259
[2023-10-27 12:35:00,060 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:00,320 INFO  L130       PetriNetUnfolder]: 750/1931 cut-off events.
[2023-10-27 12:35:00,321 INFO  L131       PetriNetUnfolder]: For 2298/2308 co-relation queries the response was YES.
[2023-10-27 12:35:00,322 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. 
[2023-10-27 12:35:00,338 INFO  L137   encePairwiseOnDemand]: 253/259 looper letters, 42 selfloop transitions, 8 changer transitions 0/64 dead transitions.
[2023-10-27 12:35:00,353 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 420 flow
[2023-10-27 12:35:00,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:35:00,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:35:00,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions.
[2023-10-27 12:35:00,355 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5431145431145431
[2023-10-27 12:35:00,355 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 422 transitions.
[2023-10-27 12:35:00,355 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions.
[2023-10-27 12:35:00,357 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:00,357 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions.
[2023-10-27 12:35:00,358 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)
[2023-10-27 12:35:00,359 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)
[2023-10-27 12:35:00,359 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)
[2023-10-27 12:35:00,359 INFO  L175             Difference]: Start difference. First operand has 57 places, 60 transitions, 325 flow. Second operand 3 states and 422 transitions.
[2023-10-27 12:35:00,360 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 420 flow
[2023-10-27 12:35:00,362 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 411 flow, removed 4 selfloop flow, removed 1 redundant places.
[2023-10-27 12:35:00,365 INFO  L231             Difference]: Finished difference. Result has 57 places, 50 transitions, 252 flow
[2023-10-27 12:35:00,365 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}
[2023-10-27 12:35:00,366 INFO  L288   CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places.
[2023-10-27 12:35:00,366 INFO  L495      AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 252 flow
[2023-10-27 12:35:00,366 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-27 12:35:00,366 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:00,367 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-10-27 12:35:00,367 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-10-27 12:35:00,367 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)] ===
[2023-10-27 12:35:00,367 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:00,367 INFO  L85        PathProgramCache]: Analyzing trace with hash 197461489, now seen corresponding path program 1 times
[2023-10-27 12:35:00,367 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:00,368 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687149118]
[2023-10-27 12:35:00,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:00,368 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:00,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:35:00,441 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:35:00,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:35:00,501 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:35:00,502 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:35:00,502 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining)
[2023-10-27 12:35:00,502 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining)
[2023-10-27 12:35:00,502 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining)
[2023-10-27 12:35:00,502 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining)
[2023-10-27 12:35:00,502 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining)
[2023-10-27 12:35:00,503 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining)
[2023-10-27 12:35:00,503 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining)
[2023-10-27 12:35:00,503 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining)
[2023-10-27 12:35:00,503 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining)
[2023-10-27 12:35:00,503 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining)
[2023-10-27 12:35:00,503 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-10-27 12:35:00,503 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:00,504 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:35:00,504 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-10-27 12:35:00,532 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-10-27 12:35:00,534 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 161 places, 159 transitions, 362 flow
[2023-10-27 12:35:00,694 INFO  L130       PetriNetUnfolder]: 43/849 cut-off events.
[2023-10-27 12:35:00,695 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-27 12:35:00,696 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. 
[2023-10-27 12:35:00,696 INFO  L82        GeneralOperation]: Start removeDead. Operand has 161 places, 159 transitions, 362 flow
[2023-10-27 12:35:00,698 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 161 places, 159 transitions, 362 flow
[2023-10-27 12:35:00,699 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:35:00,699 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 159 transitions, 362 flow
[2023-10-27 12:35:00,699 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 159 transitions, 362 flow
[2023-10-27 12:35:00,699 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 161 places, 159 transitions, 362 flow
[2023-10-27 12:35:00,828 INFO  L130       PetriNetUnfolder]: 43/849 cut-off events.
[2023-10-27 12:35:00,828 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-27 12:35:00,830 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. 
[2023-10-27 12:35:00,871 INFO  L119        LiptonReduction]: Number of co-enabled transitions 10024
[2023-10-27 12:35:06,483 INFO  L134        LiptonReduction]: Checked pairs total: 22537
[2023-10-27 12:35:06,483 INFO  L136        LiptonReduction]: Total number of compositions: 125
[2023-10-27 12:35:06,484 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:35:06,485 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;@369b59a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:35:06,485 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2023-10-27 12:35:06,486 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-27 12:35:06,486 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:35:06,486 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:06,486 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-27 12:35:06,486 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)] ===
[2023-10-27 12:35:06,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:06,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 39160, now seen corresponding path program 1 times
[2023-10-27 12:35:06,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:06,486 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019756832]
[2023-10-27 12:35:06,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:06,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:06,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:06,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:06,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:06,521 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019756832]
[2023-10-27 12:35:06,522 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019756832] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:06,522 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:06,522 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-27 12:35:06,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009573998]
[2023-10-27 12:35:06,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:06,522 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-27 12:35:06,522 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:06,523 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-27 12:35:06,523 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-27 12:35:06,523 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 148 out of 284
[2023-10-27 12:35:06,525 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)
[2023-10-27 12:35:06,525 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:06,525 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 284
[2023-10-27 12:35:06,525 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:12,887 INFO  L130       PetriNetUnfolder]: 43986/63902 cut-off events.
[2023-10-27 12:35:12,887 INFO  L131       PetriNetUnfolder]: For 5920/5920 co-relation queries the response was YES.
[2023-10-27 12:35:12,976 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. 
[2023-10-27 12:35:13,181 INFO  L137   encePairwiseOnDemand]: 280/284 looper letters, 36 selfloop transitions, 0 changer transitions 0/45 dead transitions.
[2023-10-27 12:35:13,181 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 206 flow
[2023-10-27 12:35:13,182 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-27 12:35:13,182 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-27 12:35:13,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 336 transitions.
[2023-10-27 12:35:13,196 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5915492957746479
[2023-10-27 12:35:13,196 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 336 transitions.
[2023-10-27 12:35:13,196 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 336 transitions.
[2023-10-27 12:35:13,197 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:13,197 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 336 transitions.
[2023-10-27 12:35:13,198 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)
[2023-10-27 12:35:13,199 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)
[2023-10-27 12:35:13,199 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)
[2023-10-27 12:35:13,199 INFO  L175             Difference]: Start difference. First operand has 54 places, 49 transitions, 142 flow. Second operand 2 states and 336 transitions.
[2023-10-27 12:35:13,200 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 206 flow
[2023-10-27 12:35:13,202 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 206 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:35:13,203 INFO  L231             Difference]: Finished difference. Result has 51 places, 45 transitions, 134 flow
[2023-10-27 12:35:13,203 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}
[2023-10-27 12:35:13,204 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places.
[2023-10-27 12:35:13,204 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 134 flow
[2023-10-27 12:35:13,205 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)
[2023-10-27 12:35:13,205 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:13,205 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:35:13,205 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-10-27 12:35:13,205 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)] ===
[2023-10-27 12:35:13,206 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:13,206 INFO  L85        PathProgramCache]: Analyzing trace with hash 37618953, now seen corresponding path program 1 times
[2023-10-27 12:35:13,206 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:13,206 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366605917]
[2023-10-27 12:35:13,206 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:13,207 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:13,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:13,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:13,246 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:13,246 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366605917]
[2023-10-27 12:35:13,246 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366605917] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:13,246 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:13,246 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:35:13,258 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352786558]
[2023-10-27 12:35:13,259 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:13,259 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:35:13,259 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:13,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:35:13,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:35:13,274 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 141 out of 284
[2023-10-27 12:35:13,275 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)
[2023-10-27 12:35:13,275 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:13,276 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 284
[2023-10-27 12:35:13,276 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:20,802 INFO  L130       PetriNetUnfolder]: 73069/103628 cut-off events.
[2023-10-27 12:35:20,803 INFO  L131       PetriNetUnfolder]: For 5920/5920 co-relation queries the response was YES.
[2023-10-27 12:35:20,958 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. 
[2023-10-27 12:35:21,376 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 54 selfloop transitions, 6 changer transitions 0/67 dead transitions.
[2023-10-27 12:35:21,377 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 67 transitions, 298 flow
[2023-10-27 12:35:21,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:35:21,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:35:21,400 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions.
[2023-10-27 12:35:21,401 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.568075117370892
[2023-10-27 12:35:21,402 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 484 transitions.
[2023-10-27 12:35:21,402 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 484 transitions.
[2023-10-27 12:35:21,402 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:21,402 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 484 transitions.
[2023-10-27 12:35:21,404 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)
[2023-10-27 12:35:21,407 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)
[2023-10-27 12:35:21,407 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)
[2023-10-27 12:35:21,408 INFO  L175             Difference]: Start difference. First operand has 51 places, 45 transitions, 134 flow. Second operand 3 states and 484 transitions.
[2023-10-27 12:35:21,408 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 67 transitions, 298 flow
[2023-10-27 12:35:21,410 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 67 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:35:21,411 INFO  L231             Difference]: Finished difference. Result has 55 places, 50 transitions, 180 flow
[2023-10-27 12:35:21,425 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}
[2023-10-27 12:35:21,426 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places.
[2023-10-27 12:35:21,426 INFO  L495      AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 180 flow
[2023-10-27 12:35:21,427 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)
[2023-10-27 12:35:21,427 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:21,427 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:21,427 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-10-27 12:35:21,427 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-10-27 12:35:21,427 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:21,428 INFO  L85        PathProgramCache]: Analyzing trace with hash 1374823291, now seen corresponding path program 1 times
[2023-10-27 12:35:21,428 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:21,428 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560049784]
[2023-10-27 12:35:21,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:21,428 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:21,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:21,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:21,469 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:21,469 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560049784]
[2023-10-27 12:35:21,469 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560049784] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:21,469 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:21,469 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:35:21,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982553366]
[2023-10-27 12:35:21,469 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:21,470 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:35:21,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:21,470 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:35:21,470 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:35:21,486 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-10-27 12:35:21,487 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)
[2023-10-27 12:35:21,487 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:21,487 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-10-27 12:35:21,487 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:30,917 INFO  L130       PetriNetUnfolder]: 80443/116082 cut-off events.
[2023-10-27 12:35:30,917 INFO  L131       PetriNetUnfolder]: For 33081/33081 co-relation queries the response was YES.
[2023-10-27 12:35:31,160 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. 
[2023-10-27 12:35:31,991 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 63 selfloop transitions, 10 changer transitions 0/82 dead transitions.
[2023-10-27 12:35:31,991 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 442 flow
[2023-10-27 12:35:31,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:35:31,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:35:31,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions.
[2023-10-27 12:35:31,996 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.568075117370892
[2023-10-27 12:35:31,997 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 484 transitions.
[2023-10-27 12:35:31,997 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 484 transitions.
[2023-10-27 12:35:31,997 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:31,997 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 484 transitions.
[2023-10-27 12:35:32,000 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)
[2023-10-27 12:35:32,014 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)
[2023-10-27 12:35:32,015 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)
[2023-10-27 12:35:32,029 INFO  L175             Difference]: Start difference. First operand has 55 places, 50 transitions, 180 flow. Second operand 3 states and 484 transitions.
[2023-10-27 12:35:32,029 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 442 flow
[2023-10-27 12:35:35,739 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 82 transitions, 422 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:35:35,741 INFO  L231             Difference]: Finished difference. Result has 56 places, 58 transitions, 246 flow
[2023-10-27 12:35:35,741 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}
[2023-10-27 12:35:35,742 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places.
[2023-10-27 12:35:35,743 INFO  L495      AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 246 flow
[2023-10-27 12:35:35,743 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)
[2023-10-27 12:35:35,743 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:35,744 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:35,744 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-10-27 12:35:35,744 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)] ===
[2023-10-27 12:35:35,744 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:35,744 INFO  L85        PathProgramCache]: Analyzing trace with hash -1622060290, now seen corresponding path program 1 times
[2023-10-27 12:35:35,745 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:35,745 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422626561]
[2023-10-27 12:35:35,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:35,745 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:35,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:35,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:35,873 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:35,873 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422626561]
[2023-10-27 12:35:35,873 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422626561] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-27 12:35:35,874 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36404492]
[2023-10-27 12:35:35,874 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:35,874 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-27 12:35:35,874 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:35:35,890 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-27 12:35:35,917 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-10-27 12:35:36,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:36,020 INFO  L263         TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-10-27 12:35:36,021 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-27 12:35:36,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:36,073 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-27 12:35:36,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:36,107 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [36404492] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-27 12:35:36,107 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-27 12:35:36,107 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8
[2023-10-27 12:35:36,107 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157475909]
[2023-10-27 12:35:36,108 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-27 12:35:36,108 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-10-27 12:35:36,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:36,108 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-10-27 12:35:36,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2023-10-27 12:35:36,350 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 138 out of 284
[2023-10-27 12:35:36,351 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)
[2023-10-27 12:35:36,351 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:36,351 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 284
[2023-10-27 12:35:36,351 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:43,194 INFO  L130       PetriNetUnfolder]: 50994/75559 cut-off events.
[2023-10-27 12:35:43,194 INFO  L131       PetriNetUnfolder]: For 47399/48880 co-relation queries the response was YES.
[2023-10-27 12:35:43,334 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. 
[2023-10-27 12:35:43,561 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 102 selfloop transitions, 7 changer transitions 4/123 dead transitions.
[2023-10-27 12:35:43,561 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 123 transitions, 700 flow
[2023-10-27 12:35:43,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-10-27 12:35:43,562 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2023-10-27 12:35:43,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1198 transitions.
[2023-10-27 12:35:43,564 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5272887323943662
[2023-10-27 12:35:43,564 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 1198 transitions.
[2023-10-27 12:35:43,564 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 1198 transitions.
[2023-10-27 12:35:43,565 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:43,565 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1198 transitions.
[2023-10-27 12:35:43,585 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)
[2023-10-27 12:35:43,587 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)
[2023-10-27 12:35:43,588 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)
[2023-10-27 12:35:43,588 INFO  L175             Difference]: Start difference. First operand has 56 places, 58 transitions, 246 flow. Second operand 8 states and 1198 transitions.
[2023-10-27 12:35:43,588 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 123 transitions, 700 flow
[2023-10-27 12:35:44,186 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 123 transitions, 678 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-27 12:35:44,188 INFO  L231             Difference]: Finished difference. Result has 66 places, 62 transitions, 281 flow
[2023-10-27 12:35:44,188 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}
[2023-10-27 12:35:44,193 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places.
[2023-10-27 12:35:44,193 INFO  L495      AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 281 flow
[2023-10-27 12:35:44,193 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)
[2023-10-27 12:35:44,193 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:44,194 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:44,208 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
[2023-10-27 12:35:44,406 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
[2023-10-27 12:35:44,407 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-10-27 12:35:44,408 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:44,408 INFO  L85        PathProgramCache]: Analyzing trace with hash 29635704, now seen corresponding path program 1 times
[2023-10-27 12:35:44,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:44,409 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065848549]
[2023-10-27 12:35:44,409 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:44,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:44,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:44,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-27 12:35:44,506 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:44,506 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065848549]
[2023-10-27 12:35:44,507 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065848549] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:44,521 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:44,521 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:35:44,521 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784324395]
[2023-10-27 12:35:44,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:44,522 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:35:44,522 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:44,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:35:44,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:35:44,541 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-10-27 12:35:44,541 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)
[2023-10-27 12:35:44,541 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:44,541 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-10-27 12:35:44,541 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:51,970 INFO  L130       PetriNetUnfolder]: 63229/93063 cut-off events.
[2023-10-27 12:35:51,970 INFO  L131       PetriNetUnfolder]: For 66511/67704 co-relation queries the response was YES.
[2023-10-27 12:35:52,189 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. 
[2023-10-27 12:35:52,492 INFO  L137   encePairwiseOnDemand]: 277/284 looper letters, 74 selfloop transitions, 12 changer transitions 0/95 dead transitions.
[2023-10-27 12:35:52,493 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 598 flow
[2023-10-27 12:35:52,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:35:52,493 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:35:52,503 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions.
[2023-10-27 12:35:52,504 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5669014084507042
[2023-10-27 12:35:52,504 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 483 transitions.
[2023-10-27 12:35:52,504 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions.
[2023-10-27 12:35:52,504 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:52,504 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions.
[2023-10-27 12:35:52,505 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)
[2023-10-27 12:35:52,508 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)
[2023-10-27 12:35:52,508 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)
[2023-10-27 12:35:52,508 INFO  L175             Difference]: Start difference. First operand has 66 places, 62 transitions, 281 flow. Second operand 3 states and 483 transitions.
[2023-10-27 12:35:52,509 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 598 flow
[2023-10-27 12:35:52,721 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 95 transitions, 593 flow, removed 2 selfloop flow, removed 1 redundant places.
[2023-10-27 12:35:52,722 INFO  L231             Difference]: Finished difference. Result has 67 places, 70 transitions, 378 flow
[2023-10-27 12:35:52,722 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}
[2023-10-27 12:35:52,722 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 13 predicate places.
[2023-10-27 12:35:52,723 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 70 transitions, 378 flow
[2023-10-27 12:35:52,723 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)
[2023-10-27 12:35:52,723 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:52,723 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:52,723 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-10-27 12:35:52,724 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-10-27 12:35:52,724 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:52,724 INFO  L85        PathProgramCache]: Analyzing trace with hash 1732566129, now seen corresponding path program 1 times
[2023-10-27 12:35:52,724 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:52,724 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970970288]
[2023-10-27 12:35:52,725 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:52,725 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:52,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:52,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:35:52,866 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:52,866 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970970288]
[2023-10-27 12:35:52,867 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970970288] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:52,867 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:52,867 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-27 12:35:52,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872565951]
[2023-10-27 12:35:52,868 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:52,868 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:35:52,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:52,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:35:52,869 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:35:52,887 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-10-27 12:35:52,888 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)
[2023-10-27 12:35:52,888 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:52,888 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-10-27 12:35:52,888 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:53,831 INFO  L130       PetriNetUnfolder]: 3991/8775 cut-off events.
[2023-10-27 12:35:53,832 INFO  L131       PetriNetUnfolder]: For 11403/11441 co-relation queries the response was YES.
[2023-10-27 12:35:53,841 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. 
[2023-10-27 12:35:53,855 INFO  L137   encePairwiseOnDemand]: 276/284 looper letters, 57 selfloop transitions, 8 changer transitions 0/75 dead transitions.
[2023-10-27 12:35:53,855 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 511 flow
[2023-10-27 12:35:53,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:35:53,856 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:35:53,856 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions.
[2023-10-27 12:35:53,857 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5528169014084507
[2023-10-27 12:35:53,857 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 471 transitions.
[2023-10-27 12:35:53,857 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions.
[2023-10-27 12:35:53,858 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:53,858 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions.
[2023-10-27 12:35:53,859 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)
[2023-10-27 12:35:53,874 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)
[2023-10-27 12:35:53,874 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)
[2023-10-27 12:35:53,874 INFO  L175             Difference]: Start difference. First operand has 67 places, 70 transitions, 378 flow. Second operand 3 states and 471 transitions.
[2023-10-27 12:35:53,874 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 511 flow
[2023-10-27 12:35:53,913 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 75 transitions, 505 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-10-27 12:35:53,914 INFO  L231             Difference]: Finished difference. Result has 68 places, 58 transitions, 292 flow
[2023-10-27 12:35:53,914 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}
[2023-10-27 12:35:53,915 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places.
[2023-10-27 12:35:53,915 INFO  L495      AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 292 flow
[2023-10-27 12:35:53,915 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)
[2023-10-27 12:35:53,915 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:53,915 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:53,916 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-10-27 12:35:53,916 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-10-27 12:35:53,916 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:53,916 INFO  L85        PathProgramCache]: Analyzing trace with hash 587722635, now seen corresponding path program 1 times
[2023-10-27 12:35:53,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:53,916 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610818210]
[2023-10-27 12:35:53,916 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:53,917 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:53,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:35:53,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-10-27 12:35:53,994 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:35:53,994 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610818210]
[2023-10-27 12:35:53,994 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610818210] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:35:53,994 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:35:53,994 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:35:53,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091614552]
[2023-10-27 12:35:53,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:35:53,997 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:35:53,997 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:35:53,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:35:53,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:35:54,013 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 139 out of 284
[2023-10-27 12:35:54,014 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)
[2023-10-27 12:35:54,014 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:35:54,014 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 284
[2023-10-27 12:35:54,014 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:35:55,176 INFO  L130       PetriNetUnfolder]: 3994/9075 cut-off events.
[2023-10-27 12:35:55,177 INFO  L131       PetriNetUnfolder]: For 11127/11169 co-relation queries the response was YES.
[2023-10-27 12:35:55,191 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. 
[2023-10-27 12:35:55,205 INFO  L137   encePairwiseOnDemand]: 280/284 looper letters, 59 selfloop transitions, 4 changer transitions 0/72 dead transitions.
[2023-10-27 12:35:55,205 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 492 flow
[2023-10-27 12:35:55,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:35:55,206 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:35:55,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions.
[2023-10-27 12:35:55,207 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5481220657276995
[2023-10-27 12:35:55,207 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 467 transitions.
[2023-10-27 12:35:55,207 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 467 transitions.
[2023-10-27 12:35:55,208 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:35:55,208 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 467 transitions.
[2023-10-27 12:35:55,209 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)
[2023-10-27 12:35:55,210 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)
[2023-10-27 12:35:55,210 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)
[2023-10-27 12:35:55,210 INFO  L175             Difference]: Start difference. First operand has 68 places, 58 transitions, 292 flow. Second operand 3 states and 467 transitions.
[2023-10-27 12:35:55,210 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 492 flow
[2023-10-27 12:35:55,220 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-27 12:35:55,221 INFO  L231             Difference]: Finished difference. Result has 70 places, 60 transitions, 314 flow
[2023-10-27 12:35:55,221 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}
[2023-10-27 12:35:55,223 INFO  L288   CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places.
[2023-10-27 12:35:55,223 INFO  L495      AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 314 flow
[2023-10-27 12:35:55,223 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)
[2023-10-27 12:35:55,223 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:35:55,223 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:55,224 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-10-27 12:35:55,224 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)] ===
[2023-10-27 12:35:55,224 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:35:55,224 INFO  L85        PathProgramCache]: Analyzing trace with hash 705590099, now seen corresponding path program 1 times
[2023-10-27 12:35:55,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:35:55,225 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347805513]
[2023-10-27 12:35:55,225 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:35:55,226 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:35:55,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:35:55,318 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:35:55,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:35:55,377 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:35:55,378 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:35:55,378 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining)
[2023-10-27 12:35:55,378 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining)
[2023-10-27 12:35:55,378 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining)
[2023-10-27 12:35:55,378 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining)
[2023-10-27 12:35:55,378 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining)
[2023-10-27 12:35:55,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining)
[2023-10-27 12:35:55,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining)
[2023-10-27 12:35:55,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining)
[2023-10-27 12:35:55,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining)
[2023-10-27 12:35:55,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining)
[2023-10-27 12:35:55,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining)
[2023-10-27 12:35:55,380 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-10-27 12:35:55,380 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:35:55,380 WARN  L233   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:35:55,380 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2023-10-27 12:35:55,410 INFO  L144    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2023-10-27 12:35:55,412 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 178 places, 175 transitions, 410 flow
[2023-10-27 12:35:55,688 INFO  L130       PetriNetUnfolder]: 93/1560 cut-off events.
[2023-10-27 12:35:55,688 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2023-10-27 12:35:55,694 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. 
[2023-10-27 12:35:55,694 INFO  L82        GeneralOperation]: Start removeDead. Operand has 178 places, 175 transitions, 410 flow
[2023-10-27 12:35:55,697 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 178 places, 175 transitions, 410 flow
[2023-10-27 12:35:55,698 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:35:55,698 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 175 transitions, 410 flow
[2023-10-27 12:35:55,698 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 175 transitions, 410 flow
[2023-10-27 12:35:55,705 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 178 places, 175 transitions, 410 flow
[2023-10-27 12:35:55,921 INFO  L130       PetriNetUnfolder]: 93/1560 cut-off events.
[2023-10-27 12:35:55,922 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2023-10-27 12:35:55,924 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. 
[2023-10-27 12:35:55,953 INFO  L119        LiptonReduction]: Number of co-enabled transitions 13720
[2023-10-27 12:36:01,116 INFO  L134        LiptonReduction]: Checked pairs total: 31638
[2023-10-27 12:36:01,117 INFO  L136        LiptonReduction]: Total number of compositions: 134
[2023-10-27 12:36:01,118 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:36:01,118 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;@369b59a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:36:01,118 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 12 error locations.
[2023-10-27 12:36:01,118 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-27 12:36:01,118 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:36:01,119 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:36:01,119 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-27 12:36:01,119 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)] ===
[2023-10-27 12:36:01,119 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:36:01,119 INFO  L85        PathProgramCache]: Analyzing trace with hash 49561, now seen corresponding path program 1 times
[2023-10-27 12:36:01,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:36:01,119 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835234755]
[2023-10-27 12:36:01,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:36:01,119 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:36:01,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:36:01,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:36:01,153 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:36:01,153 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835234755]
[2023-10-27 12:36:01,153 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835234755] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:36:01,153 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:36:01,153 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-27 12:36:01,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762493953]
[2023-10-27 12:36:01,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:36:01,154 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-27 12:36:01,154 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:36:01,154 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-27 12:36:01,154 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-27 12:36:01,154 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 162 out of 309
[2023-10-27 12:36:01,155 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)
[2023-10-27 12:36:01,155 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:36:01,155 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 309
[2023-10-27 12:36:01,155 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:36:35,752 INFO  L130       PetriNetUnfolder]: 267125/366917 cut-off events.
[2023-10-27 12:36:35,753 INFO  L131       PetriNetUnfolder]: For 40206/40206 co-relation queries the response was YES.
[2023-10-27 12:36:36,551 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. 
[2023-10-27 12:36:37,993 INFO  L137   encePairwiseOnDemand]: 305/309 looper letters, 41 selfloop transitions, 0 changer transitions 0/53 dead transitions.
[2023-10-27 12:36:37,994 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 248 flow
[2023-10-27 12:36:37,994 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-27 12:36:37,994 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-27 12:36:37,995 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 369 transitions.
[2023-10-27 12:36:37,995 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5970873786407767
[2023-10-27 12:36:37,996 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 369 transitions.
[2023-10-27 12:36:37,996 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 369 transitions.
[2023-10-27 12:36:37,996 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:36:38,008 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 369 transitions.
[2023-10-27 12:36:38,009 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)
[2023-10-27 12:36:38,010 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)
[2023-10-27 12:36:38,010 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)
[2023-10-27 12:36:38,010 INFO  L175             Difference]: Start difference. First operand has 63 places, 57 transitions, 174 flow. Second operand 2 states and 369 transitions.
[2023-10-27 12:36:38,010 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 248 flow
[2023-10-27 12:36:38,014 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:36:38,015 INFO  L231             Difference]: Finished difference. Result has 60 places, 53 transitions, 166 flow
[2023-10-27 12:36:38,015 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}
[2023-10-27 12:36:38,016 INFO  L288   CegarLoopForPetriNet]: 63 programPoint places, -3 predicate places.
[2023-10-27 12:36:38,016 INFO  L495      AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 166 flow
[2023-10-27 12:36:38,021 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)
[2023-10-27 12:36:38,021 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:36:38,021 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:36:38,021 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-10-27 12:36:38,021 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)] ===
[2023-10-27 12:36:38,022 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:36:38,041 INFO  L85        PathProgramCache]: Analyzing trace with hash 47619822, now seen corresponding path program 1 times
[2023-10-27 12:36:38,041 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:36:38,042 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778700754]
[2023-10-27 12:36:38,042 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:36:38,042 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:36:38,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:36:38,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:36:38,058 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:36:38,059 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778700754]
[2023-10-27 12:36:38,072 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778700754] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:36:38,072 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:36:38,072 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:36:38,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055479249]
[2023-10-27 12:36:38,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:36:38,073 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:36:38,073 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:36:38,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:36:38,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:36:38,093 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 154 out of 309
[2023-10-27 12:36:38,094 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)
[2023-10-27 12:36:38,094 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:36:38,094 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 309
[2023-10-27 12:36:38,094 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
