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


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


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data -tc /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const.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 d95613863b12c8e7ad0425f6659b97df3891ba6cc951da0b981e4fca54d3b7f9
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-26 08:58:40,273 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-26 08:58:40,275 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-26 08:58:40,325 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-26 08:58:40,341 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-26 08:58:40,344 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-26 08:58:40,346 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-26 08:58:40,348 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-26 08:58:40,349 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-26 08:58:40,353 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-26 08:58:40,354 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-26 08:58:40,356 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-26 08:58:40,356 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-26 08:58:40,358 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-26 08:58:40,359 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-26 08:58:40,360 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-26 08:58:40,361 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-26 08:58:40,362 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-26 08:58:40,363 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-26 08:58:40,367 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-26 08:58:40,368 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-26 08:58:40,369 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-26 08:58:40,370 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-26 08:58:40,371 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-26 08:58:40,378 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-26 08:58:40,378 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-26 08:58:40,378 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-26 08:58:40,379 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-26 08:58:40,380 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-26 08:58:40,380 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-26 08:58:40,381 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-26 08:58:40,381 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-26 08:58:40,383 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-26 08:58:40,383 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-26 08:58:40,384 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-26 08:58:40,397 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-26 08:58:40,398 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-26 08:58:40,398 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-26 08:58:40,398 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-26 08:58:40,399 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-26 08:58:40,399 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-26 08:58:40,400 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-26 08:58:40,433 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-26 08:58:40,434 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-26 08:58:40,434 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-26 08:58:40,434 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-26 08:58:40,435 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-26 08:58:40,435 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-26 08:58:40,435 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-26 08:58:40,436 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-26 08:58:40,436 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-26 08:58:40,436 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-26 08:58:40,436 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-26 08:58:40,436 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-26 08:58:40,436 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-26 08:58:40,436 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-26 08:58:40,437 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-26 08:58:40,437 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-26 08:58:40,437 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-26 08:58:40,437 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-26 08:58:40,449 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-26 08:58:40,449 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-26 08:58:40,449 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-26 08:58:40,450 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-26 08:58:40,450 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-26 08:58:40,450 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-26 08:58:40,450 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-26 08:58:40,451 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-26 08:58:40,451 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-26 08:58:40,451 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-26 08:58:40,452 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-26 08:58:40,452 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-26 08:58:40,452 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-26 08:58:40,452 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-26 08:58:40,453 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-26 08:58:40,453 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-26 08:58:40,453 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-26 08:58:40,453 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-26 08:58:40,454 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-26 08:58:40,454 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 -> d95613863b12c8e7ad0425f6659b97df3891ba6cc951da0b981e4fca54d3b7f9
[2023-10-26 08:58:40,801 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-26 08:58:40,821 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-26 08:58:40,823 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-26 08:58:40,830 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-26 08:58:40,831 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-26 08:58:40,832 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const.i
[2023-10-26 08:58:42,418 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-26 08:58:42,777 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-26 08:58:42,785 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const.i
[2023-10-26 08:58:42,797 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/d6160c1b8/ed46c5098f0848f6b41fa4dba76e2789/FLAG30133ea9d
[2023-10-26 08:58:42,835 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/d6160c1b8/ed46c5098f0848f6b41fa4dba76e2789
[2023-10-26 08:58:42,837 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-26 08:58:42,838 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-26 08:58:42,839 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-26 08:58:42,845 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-26 08:58:42,847 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-26 08:58:42,852 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:58:42" (1/1) ...
[2023-10-26 08:58:42,853 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250390ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:42, skipping insertion in model container
[2023-10-26 08:58:42,853 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:58:42" (1/1) ...
[2023-10-26 08:58:42,873 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-26 08:58:42,919 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-26 08:58:43,368 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-26 08:58:43,378 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-26 08:58:43,460 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-26 08:58:43,509 INFO  L208         MainTranslator]: Completed translation
[2023-10-26 08:58:43,514 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43 WrapperNode
[2023-10-26 08:58:43,514 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-26 08:58:43,516 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-26 08:58:43,516 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-26 08:58:43,516 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-26 08:58:43,522 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,563 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,609 INFO  L138                Inliner]: procedures = 157, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53
[2023-10-26 08:58:43,609 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-26 08:58:43,610 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-26 08:58:43,610 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-26 08:58:43,610 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-26 08:58:43,617 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,633 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,643 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,643 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,656 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,661 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,662 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,666 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,668 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-26 08:58:43,675 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-26 08:58:43,676 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-26 08:58:43,676 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-26 08:58:43,676 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (1/1) ...
[2023-10-26 08:58:43,689 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-26 08:58:43,705 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:58:43,736 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-10-26 08:58:43,795 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-10-26 08:58:43,824 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-26 08:58:43,824 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-26 08:58:43,824 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-26 08:58:43,824 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-26 08:58:43,824 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-26 08:58:43,824 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-26 08:58:43,826 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-26 08:58:43,826 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-26 08:58:43,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-26 08:58:43,826 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-26 08:58:43,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-26 08:58:43,827 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-26 08:58:44,041 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-26 08:58:44,054 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-26 08:58:44,292 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-26 08:58:44,298 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-26 08:58:44,302 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-10-26 08:58:44,310 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:58:44 BoogieIcfgContainer
[2023-10-26 08:58:44,310 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-26 08:58:44,322 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-26 08:58:44,322 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-26 08:58:44,325 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-26 08:58:44,326 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:58:42" (1/3) ...
[2023-10-26 08:58:44,327 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636005ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:58:44, skipping insertion in model container
[2023-10-26 08:58:44,327 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:43" (2/3) ...
[2023-10-26 08:58:44,328 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636005ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:58:44, skipping insertion in model container
[2023-10-26 08:58:44,328 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:58:44" (3/3) ...
[2023-10-26 08:58:44,342 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-array-const.i
[2023-10-26 08:58:44,348 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-26 08:58:44,360 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-26 08:58:44,373 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2023-10-26 08:58:44,373 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-26 08:58:44,460 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-10-26 08:58:44,492 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 71 places, 71 transitions, 150 flow
[2023-10-26 08:58:44,582 INFO  L130       PetriNetUnfolder]: 5/97 cut-off events.
[2023-10-26 08:58:44,582 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:58:44,586 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 103 conditions, 97 events. 5/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. 
[2023-10-26 08:58:44,586 INFO  L82        GeneralOperation]: Start removeDead. Operand has 71 places, 71 transitions, 150 flow
[2023-10-26 08:58:44,599 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 71 places, 71 transitions, 150 flow
[2023-10-26 08:58:44,602 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:58:44,610 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 71 transitions, 150 flow
[2023-10-26 08:58:44,619 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 71 transitions, 150 flow
[2023-10-26 08:58:44,642 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 71 places, 71 transitions, 150 flow
[2023-10-26 08:58:44,697 INFO  L130       PetriNetUnfolder]: 5/97 cut-off events.
[2023-10-26 08:58:44,697 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:58:44,697 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 103 conditions, 97 events. 5/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. 
[2023-10-26 08:58:44,699 INFO  L119        LiptonReduction]: Number of co-enabled transitions 896
[2023-10-26 08:58:46,977 INFO  L134        LiptonReduction]: Checked pairs total: 1633
[2023-10-26 08:58:46,978 INFO  L136        LiptonReduction]: Total number of compositions: 57
[2023-10-26 08:58:46,988 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:58:46,993 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;@5b353347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:58:47,005 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:58:47,008 INFO  L130       PetriNetUnfolder]: 0/5 cut-off events.
[2023-10-26 08:58:47,013 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:58:47,013 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:47,014 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:58:47,014 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-10-26 08:58:47,018 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:47,041 INFO  L85        PathProgramCache]: Analyzing trace with hash 260257, now seen corresponding path program 1 times
[2023-10-26 08:58:47,049 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:47,049 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850177066]
[2023-10-26 08:58:47,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:47,050 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:47,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:47,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:58:47,461 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:47,461 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850177066]
[2023-10-26 08:58:47,462 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850177066] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:47,462 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:47,462 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:47,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353273941]
[2023-10-26 08:58:47,464 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:47,470 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:47,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:47,504 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:47,515 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:47,555 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 64 out of 128
[2023-10-26 08:58:47,558 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 44 flow. Second operand  has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,558 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:47,558 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 128
[2023-10-26 08:58:47,559 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:47,621 INFO  L130       PetriNetUnfolder]: 12/52 cut-off events.
[2023-10-26 08:58:47,621 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:58:47,622 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 100 conditions, 52 events. 12/52 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 144 event pairs, 5 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 72. Up to 36 conditions per place. 
[2023-10-26 08:58:47,638 INFO  L137   encePairwiseOnDemand]: 124/128 looper letters, 13 selfloop transitions, 2 changer transitions 0/20 dead transitions.
[2023-10-26 08:58:47,638 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 78 flow
[2023-10-26 08:58:47,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:47,645 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:47,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions.
[2023-10-26 08:58:47,654 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5442708333333334
[2023-10-26 08:58:47,655 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 209 transitions.
[2023-10-26 08:58:47,655 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions.
[2023-10-26 08:58:47,657 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:47,658 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions.
[2023-10-26 08:58:47,667 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,689 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,689 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,691 INFO  L175             Difference]: Start difference. First operand has 20 places, 18 transitions, 44 flow. Second operand 3 states and 209 transitions.
[2023-10-26 08:58:47,691 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 78 flow
[2023-10-26 08:58:47,693 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:58:47,694 INFO  L231             Difference]: Finished difference. Result has 22 places, 17 transitions, 50 flow
[2023-10-26 08:58:47,695 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=17}
[2023-10-26 08:58:47,698 INFO  L288   CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places.
[2023-10-26 08:58:47,699 INFO  L495      AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 50 flow
[2023-10-26 08:58:47,699 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,699 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:47,699 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:47,700 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-26 08:58:47,700 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-10-26 08:58:47,701 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:47,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -826925151, now seen corresponding path program 1 times
[2023-10-26 08:58:47,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:47,703 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267362225]
[2023-10-26 08:58:47,703 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:47,705 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:47,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:47,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:58:47,785 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:47,785 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267362225]
[2023-10-26 08:58:47,785 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267362225] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:47,785 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:47,786 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:47,786 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986431827]
[2023-10-26 08:58:47,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:47,787 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:47,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:47,798 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:47,799 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:47,809 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 61 out of 128
[2023-10-26 08:58:47,809 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 50 flow. Second operand  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,809 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:47,809 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 128
[2023-10-26 08:58:47,810 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:47,899 INFO  L130       PetriNetUnfolder]: 20/71 cut-off events.
[2023-10-26 08:58:47,900 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:58:47,900 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 153 conditions, 71 events. 20/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 225 event pairs, 13 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 122. Up to 48 conditions per place. 
[2023-10-26 08:58:47,901 INFO  L137   encePairwiseOnDemand]: 124/128 looper letters, 17 selfloop transitions, 3 changer transitions 1/24 dead transitions.
[2023-10-26 08:58:47,901 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 111 flow
[2023-10-26 08:58:47,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:47,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:47,905 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions.
[2023-10-26 08:58:47,906 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5338541666666666
[2023-10-26 08:58:47,906 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 205 transitions.
[2023-10-26 08:58:47,906 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions.
[2023-10-26 08:58:47,906 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:47,907 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions.
[2023-10-26 08:58:47,908 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,910 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,910 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,910 INFO  L175             Difference]: Start difference. First operand has 22 places, 17 transitions, 50 flow. Second operand 3 states and 205 transitions.
[2023-10-26 08:58:47,910 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 111 flow
[2023-10-26 08:58:47,911 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 105 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:58:47,912 INFO  L231             Difference]: Finished difference. Result has 23 places, 19 transitions, 65 flow
[2023-10-26 08:58:47,912 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=23, PETRI_TRANSITIONS=19}
[2023-10-26 08:58:47,913 INFO  L288   CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places.
[2023-10-26 08:58:47,913 INFO  L495      AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 65 flow
[2023-10-26 08:58:47,914 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:47,914 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:47,914 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-26 08:58:47,914 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-26 08:58:47,914 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-10-26 08:58:47,917 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:47,917 INFO  L85        PathProgramCache]: Analyzing trace with hash -826926477, now seen corresponding path program 1 times
[2023-10-26 08:58:47,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:47,918 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283231967]
[2023-10-26 08:58:47,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:47,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:47,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:58:47,970 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:58:48,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:58:48,038 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:58:48,038 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:58:48,039 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:58:48,041 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:58:48,041 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:58:48,041 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:58:48,042 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:58:48,042 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-26 08:58:48,042 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-10-26 08:58:48,046 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:58:48,046 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-26 08:58:48,089 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-10-26 08:58:48,094 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 88 places, 87 transitions, 192 flow
[2023-10-26 08:58:48,141 INFO  L130       PetriNetUnfolder]: 10/173 cut-off events.
[2023-10-26 08:58:48,141 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:58:48,144 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 187 conditions, 173 events. 10/173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 411 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 99. Up to 8 conditions per place. 
[2023-10-26 08:58:48,144 INFO  L82        GeneralOperation]: Start removeDead. Operand has 88 places, 87 transitions, 192 flow
[2023-10-26 08:58:48,145 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 88 places, 87 transitions, 192 flow
[2023-10-26 08:58:48,145 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:58:48,145 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 87 transitions, 192 flow
[2023-10-26 08:58:48,146 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 87 transitions, 192 flow
[2023-10-26 08:58:48,146 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 88 places, 87 transitions, 192 flow
[2023-10-26 08:58:48,191 INFO  L130       PetriNetUnfolder]: 10/173 cut-off events.
[2023-10-26 08:58:48,191 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:58:48,192 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 187 conditions, 173 events. 10/173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 411 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 99. Up to 8 conditions per place. 
[2023-10-26 08:58:48,194 INFO  L119        LiptonReduction]: Number of co-enabled transitions 2492
[2023-10-26 08:58:50,019 INFO  L134        LiptonReduction]: Checked pairs total: 5801
[2023-10-26 08:58:50,020 INFO  L136        LiptonReduction]: Total number of compositions: 60
[2023-10-26 08:58:50,021 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:58:50,022 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;@5b353347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:58:50,022 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2023-10-26 08:58:50,023 INFO  L130       PetriNetUnfolder]: 0/4 cut-off events.
[2023-10-26 08:58:50,023 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:58:50,023 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:50,023 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:58:50,023 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:58:50,023 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:50,024 INFO  L85        PathProgramCache]: Analyzing trace with hash 422210, now seen corresponding path program 1 times
[2023-10-26 08:58:50,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:50,024 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141347645]
[2023-10-26 08:58:50,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:50,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:50,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:50,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:58:50,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:50,127 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141347645]
[2023-10-26 08:58:50,128 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141347645] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:50,128 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:50,128 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:50,128 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349128044]
[2023-10-26 08:58:50,128 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:50,128 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:50,129 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:50,129 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:50,129 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:50,149 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 78 out of 147
[2023-10-26 08:58:50,150 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 78 flow. Second operand  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,150 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:50,150 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 147
[2023-10-26 08:58:50,150 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:50,332 INFO  L130       PetriNetUnfolder]: 457/901 cut-off events.
[2023-10-26 08:58:50,332 INFO  L131       PetriNetUnfolder]: For 36/36 co-relation queries the response was YES.
[2023-10-26 08:58:50,335 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1745 conditions, 901 events. 457/901 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4583 event pairs, 205 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 286. Up to 787 conditions per place. 
[2023-10-26 08:58:50,337 INFO  L137   encePairwiseOnDemand]: 143/147 looper letters, 27 selfloop transitions, 2 changer transitions 0/36 dead transitions.
[2023-10-26 08:58:50,349 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 148 flow
[2023-10-26 08:58:50,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:50,350 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:50,350 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions.
[2023-10-26 08:58:50,351 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6009070294784581
[2023-10-26 08:58:50,351 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 265 transitions.
[2023-10-26 08:58:50,351 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions.
[2023-10-26 08:58:50,351 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:50,351 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions.
[2023-10-26 08:58:50,352 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 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)
[2023-10-26 08:58:50,353 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,353 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,353 INFO  L175             Difference]: Start difference. First operand has 33 places, 30 transitions, 78 flow. Second operand 3 states and 265 transitions.
[2023-10-26 08:58:50,353 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 148 flow
[2023-10-26 08:58:50,354 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:58:50,355 INFO  L231             Difference]: Finished difference. Result has 35 places, 30 transitions, 88 flow
[2023-10-26 08:58:50,355 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=35, PETRI_TRANSITIONS=30}
[2023-10-26 08:58:50,355 INFO  L288   CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places.
[2023-10-26 08:58:50,355 INFO  L495      AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 88 flow
[2023-10-26 08:58:50,356 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,356 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:50,356 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:50,356 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-26 08:58:50,356 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:58:50,357 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:50,357 INFO  L85        PathProgramCache]: Analyzing trace with hash -536914938, now seen corresponding path program 1 times
[2023-10-26 08:58:50,357 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:50,357 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289758416]
[2023-10-26 08:58:50,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:50,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:50,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:50,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:58:50,412 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:50,412 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289758416]
[2023-10-26 08:58:50,412 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289758416] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:50,413 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:50,413 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:50,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054254559]
[2023-10-26 08:58:50,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:50,414 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:50,414 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:50,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:50,414 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:50,441 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 74 out of 147
[2023-10-26 08:58:50,441 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 88 flow. Second operand  has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 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)
[2023-10-26 08:58:50,441 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:50,441 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 147
[2023-10-26 08:58:50,442 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:50,729 INFO  L130       PetriNetUnfolder]: 595/1131 cut-off events.
[2023-10-26 08:58:50,729 INFO  L131       PetriNetUnfolder]: For 148/148 co-relation queries the response was YES.
[2023-10-26 08:58:50,733 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 1131 events. 595/1131 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6140 event pairs, 379 based on Foata normal form. 0/1012 useless extension candidates. Maximal degree in co-relation 2269. Up to 765 conditions per place. 
[2023-10-26 08:58:50,737 INFO  L137   encePairwiseOnDemand]: 141/147 looper letters, 36 selfloop transitions, 5 changer transitions 0/47 dead transitions.
[2023-10-26 08:58:50,746 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 219 flow
[2023-10-26 08:58:50,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:50,746 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:50,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions.
[2023-10-26 08:58:50,747 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5941043083900227
[2023-10-26 08:58:50,747 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 262 transitions.
[2023-10-26 08:58:50,748 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions.
[2023-10-26 08:58:50,748 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:50,748 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions.
[2023-10-26 08:58:50,748 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,750 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,750 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:50,750 INFO  L175             Difference]: Start difference. First operand has 35 places, 30 transitions, 88 flow. Second operand 3 states and 262 transitions.
[2023-10-26 08:58:50,750 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 219 flow
[2023-10-26 08:58:50,752 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 47 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:58:50,753 INFO  L231             Difference]: Finished difference. Result has 38 places, 34 transitions, 124 flow
[2023-10-26 08:58:50,753 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=38, PETRI_TRANSITIONS=34}
[2023-10-26 08:58:50,755 INFO  L288   CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places.
[2023-10-26 08:58:50,755 INFO  L495      AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 124 flow
[2023-10-26 08:58:50,756 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 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)
[2023-10-26 08:58:50,756 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:50,756 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:50,756 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-26 08:58:50,756 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:58:50,757 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:50,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 421910286, now seen corresponding path program 1 times
[2023-10-26 08:58:50,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:50,757 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976168117]
[2023-10-26 08:58:50,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:50,773 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:50,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:50,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:58:50,874 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:50,875 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976168117]
[2023-10-26 08:58:50,875 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976168117] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:50,880 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:50,880 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:58:50,880 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031738985]
[2023-10-26 08:58:50,882 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:50,883 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-10-26 08:58:50,883 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:50,884 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-10-26 08:58:50,884 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-10-26 08:58:50,916 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147
[2023-10-26 08:58:50,917 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 124 flow. Second operand  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 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)
[2023-10-26 08:58:50,917 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:50,917 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147
[2023-10-26 08:58:50,917 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:51,081 INFO  L130       PetriNetUnfolder]: 397/789 cut-off events.
[2023-10-26 08:58:51,084 INFO  L131       PetriNetUnfolder]: For 466/480 co-relation queries the response was YES.
[2023-10-26 08:58:51,085 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1980 conditions, 789 events. 397/789 cut-off events. For 466/480 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3804 event pairs, 204 based on Foata normal form. 50/823 useless extension candidates. Maximal degree in co-relation 727. Up to 442 conditions per place. 
[2023-10-26 08:58:51,088 INFO  L137   encePairwiseOnDemand]: 143/147 looper letters, 41 selfloop transitions, 3 changer transitions 0/51 dead transitions.
[2023-10-26 08:58:51,096 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 274 flow
[2023-10-26 08:58:51,097 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-10-26 08:58:51,097 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-10-26 08:58:51,098 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions.
[2023-10-26 08:58:51,098 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5799319727891157
[2023-10-26 08:58:51,098 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 341 transitions.
[2023-10-26 08:58:51,098 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 341 transitions.
[2023-10-26 08:58:51,098 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:51,098 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 341 transitions.
[2023-10-26 08:58:51,099 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:51,100 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:51,100 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:51,101 INFO  L175             Difference]: Start difference. First operand has 38 places, 34 transitions, 124 flow. Second operand 4 states and 341 transitions.
[2023-10-26 08:58:51,101 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 274 flow
[2023-10-26 08:58:51,104 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:58:51,105 INFO  L231             Difference]: Finished difference. Result has 40 places, 35 transitions, 130 flow
[2023-10-26 08:58:51,121 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=40, PETRI_TRANSITIONS=35}
[2023-10-26 08:58:51,125 INFO  L288   CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places.
[2023-10-26 08:58:51,125 INFO  L495      AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 130 flow
[2023-10-26 08:58:51,125 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 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)
[2023-10-26 08:58:51,125 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:51,125 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-26 08:58:51,126 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-26 08:58:51,126 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2023-10-26 08:58:51,126 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:51,126 INFO  L85        PathProgramCache]: Analyzing trace with hash -1843257085, now seen corresponding path program 1 times
[2023-10-26 08:58:51,126 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:51,126 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184392440]
[2023-10-26 08:58:51,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:51,127 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:51,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:58:51,145 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:58:51,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:58:51,181 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:58:51,181 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:58:51,181 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining)
[2023-10-26 08:58:51,181 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining)
[2023-10-26 08:58:51,184 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining)
[2023-10-26 08:58:51,184 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining)
[2023-10-26 08:58:51,184 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining)
[2023-10-26 08:58:51,185 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining)
[2023-10-26 08:58:51,188 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-10-26 08:58:51,188 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-26 08:58:51,188 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:58:51,189 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-26 08:58:51,222 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-10-26 08:58:51,226 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 236 flow
[2023-10-26 08:58:51,266 INFO  L130       PetriNetUnfolder]: 20/300 cut-off events.
[2023-10-26 08:58:51,266 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-26 08:58:51,266 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 328 conditions, 300 events. 20/300 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 916 event pairs, 1 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 181. Up to 16 conditions per place. 
[2023-10-26 08:58:51,267 INFO  L82        GeneralOperation]: Start removeDead. Operand has 105 places, 103 transitions, 236 flow
[2023-10-26 08:58:51,268 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 105 places, 103 transitions, 236 flow
[2023-10-26 08:58:51,268 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:58:51,268 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 103 transitions, 236 flow
[2023-10-26 08:58:51,269 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 103 transitions, 236 flow
[2023-10-26 08:58:51,269 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 236 flow
[2023-10-26 08:58:51,303 INFO  L130       PetriNetUnfolder]: 20/300 cut-off events.
[2023-10-26 08:58:51,309 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-26 08:58:51,310 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 328 conditions, 300 events. 20/300 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 916 event pairs, 1 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 181. Up to 16 conditions per place. 
[2023-10-26 08:58:51,314 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4452
[2023-10-26 08:58:53,182 INFO  L134        LiptonReduction]: Checked pairs total: 10175
[2023-10-26 08:58:53,182 INFO  L136        LiptonReduction]: Total number of compositions: 69
[2023-10-26 08:58:53,184 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:58:53,185 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;@5b353347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:58:53,185 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2023-10-26 08:58:53,186 INFO  L130       PetriNetUnfolder]: 0/4 cut-off events.
[2023-10-26 08:58:53,186 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:58:53,186 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:53,186 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:58:53,186 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:58:53,186 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:53,186 INFO  L85        PathProgramCache]: Analyzing trace with hash 608739, now seen corresponding path program 1 times
[2023-10-26 08:58:53,186 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:53,187 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363935827]
[2023-10-26 08:58:53,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:53,187 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:53,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:53,248 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:58:53,249 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:53,249 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363935827]
[2023-10-26 08:58:53,249 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363935827] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:53,249 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:53,249 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:53,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799867815]
[2023-10-26 08:58:53,250 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:53,251 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:53,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:53,251 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:53,251 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:53,264 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 90 out of 172
[2023-10-26 08:58:53,265 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 106 flow. Second operand  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:53,265 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:53,265 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 172
[2023-10-26 08:58:53,265 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:53,957 INFO  L130       PetriNetUnfolder]: 2815/4983 cut-off events.
[2023-10-26 08:58:53,957 INFO  L131       PetriNetUnfolder]: For 394/394 co-relation queries the response was YES.
[2023-10-26 08:58:53,966 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 9510 conditions, 4983 events. 2815/4983 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 32837 event pairs, 1785 based on Foata normal form. 0/4525 useless extension candidates. Maximal degree in co-relation 1298. Up to 4231 conditions per place. 
[2023-10-26 08:58:53,996 INFO  L137   encePairwiseOnDemand]: 168/172 looper letters, 30 selfloop transitions, 2 changer transitions 0/43 dead transitions.
[2023-10-26 08:58:54,008 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 180 flow
[2023-10-26 08:58:54,009 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:54,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:54,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions.
[2023-10-26 08:58:54,010 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5891472868217055
[2023-10-26 08:58:54,010 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 304 transitions.
[2023-10-26 08:58:54,010 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions.
[2023-10-26 08:58:54,010 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:54,010 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions.
[2023-10-26 08:58:54,011 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:54,012 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:54,015 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:54,015 INFO  L175             Difference]: Start difference. First operand has 42 places, 38 transitions, 106 flow. Second operand 3 states and 304 transitions.
[2023-10-26 08:58:54,015 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 180 flow
[2023-10-26 08:58:54,016 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:58:54,017 INFO  L231             Difference]: Finished difference. Result has 44 places, 38 transitions, 116 flow
[2023-10-26 08:58:54,017 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=38}
[2023-10-26 08:58:54,018 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places.
[2023-10-26 08:58:54,018 INFO  L495      AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 116 flow
[2023-10-26 08:58:54,018 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:54,018 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:54,018 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:54,018 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-10-26 08:58:54,019 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:58:54,019 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:54,019 INFO  L85        PathProgramCache]: Analyzing trace with hash 238525696, now seen corresponding path program 1 times
[2023-10-26 08:58:54,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:54,020 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765030101]
[2023-10-26 08:58:54,020 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:54,020 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:54,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:54,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:58:54,055 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:54,055 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765030101]
[2023-10-26 08:58:54,055 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765030101] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:54,055 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:54,055 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:54,056 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647455581]
[2023-10-26 08:58:54,056 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:54,056 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:54,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:54,056 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:54,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:54,085 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 87 out of 172
[2023-10-26 08:58:54,085 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 116 flow. Second operand  has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:54,085 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:54,086 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 172
[2023-10-26 08:58:54,086 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:55,248 INFO  L130       PetriNetUnfolder]: 6067/9611 cut-off events.
[2023-10-26 08:58:55,249 INFO  L131       PetriNetUnfolder]: For 1266/1266 co-relation queries the response was YES.
[2023-10-26 08:58:55,272 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19591 conditions, 9611 events. 6067/9611 cut-off events. For 1266/1266 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 59756 event pairs, 4931 based on Foata normal form. 0/8786 useless extension candidates. Maximal degree in co-relation 19540. Up to 7918 conditions per place. 
[2023-10-26 08:58:55,351 INFO  L137   encePairwiseOnDemand]: 166/172 looper letters, 49 selfloop transitions, 5 changer transitions 0/61 dead transitions.
[2023-10-26 08:58:55,351 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 295 flow
[2023-10-26 08:58:55,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:55,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:55,352 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions.
[2023-10-26 08:58:55,352 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6085271317829457
[2023-10-26 08:58:55,353 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 314 transitions.
[2023-10-26 08:58:55,353 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions.
[2023-10-26 08:58:55,353 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:55,353 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions.
[2023-10-26 08:58:55,354 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:55,354 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:55,355 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:55,358 INFO  L175             Difference]: Start difference. First operand has 44 places, 38 transitions, 116 flow. Second operand 3 states and 314 transitions.
[2023-10-26 08:58:55,358 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 295 flow
[2023-10-26 08:58:55,359 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:58:55,360 INFO  L231             Difference]: Finished difference. Result has 46 places, 42 transitions, 147 flow
[2023-10-26 08:58:55,369 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=46, PETRI_TRANSITIONS=42}
[2023-10-26 08:58:55,370 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places.
[2023-10-26 08:58:55,372 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 147 flow
[2023-10-26 08:58:55,372 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:55,372 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:55,372 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:55,373 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-10-26 08:58:55,373 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:58:55,373 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:55,373 INFO  L85        PathProgramCache]: Analyzing trace with hash -1336616655, now seen corresponding path program 1 times
[2023-10-26 08:58:55,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:55,374 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866232703]
[2023-10-26 08:58:55,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:55,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:55,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:55,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:58:55,441 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:55,442 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866232703]
[2023-10-26 08:58:55,443 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866232703] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:55,443 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:55,443 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:58:55,443 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474379111]
[2023-10-26 08:58:55,444 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:55,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-10-26 08:58:55,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:55,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-10-26 08:58:55,445 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-10-26 08:58:55,470 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 90 out of 172
[2023-10-26 08:58:55,470 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 147 flow. Second operand  has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:55,470 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:55,471 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 172
[2023-10-26 08:58:55,471 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:56,220 INFO  L130       PetriNetUnfolder]: 3162/5514 cut-off events.
[2023-10-26 08:58:56,221 INFO  L131       PetriNetUnfolder]: For 1355/2003 co-relation queries the response was YES.
[2023-10-26 08:58:56,226 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 12182 conditions, 5514 events. 3162/5514 cut-off events. For 1355/2003 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 36291 event pairs, 1811 based on Foata normal form. 532/5797 useless extension candidates. Maximal degree in co-relation 4425. Up to 2993 conditions per place. 
[2023-10-26 08:58:56,245 INFO  L137   encePairwiseOnDemand]: 168/172 looper letters, 44 selfloop transitions, 3 changer transitions 0/60 dead transitions.
[2023-10-26 08:58:56,261 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 291 flow
[2023-10-26 08:58:56,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-10-26 08:58:56,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-10-26 08:58:56,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions.
[2023-10-26 08:58:56,263 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5872093023255814
[2023-10-26 08:58:56,263 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 404 transitions.
[2023-10-26 08:58:56,263 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 404 transitions.
[2023-10-26 08:58:56,263 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:56,263 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 404 transitions.
[2023-10-26 08:58:56,264 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:56,265 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:56,265 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:56,265 INFO  L175             Difference]: Start difference. First operand has 46 places, 42 transitions, 147 flow. Second operand 4 states and 404 transitions.
[2023-10-26 08:58:56,265 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 291 flow
[2023-10-26 08:58:56,269 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:58:56,270 INFO  L231             Difference]: Finished difference. Result has 49 places, 43 transitions, 158 flow
[2023-10-26 08:58:56,271 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=49, PETRI_TRANSITIONS=43}
[2023-10-26 08:58:56,285 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places.
[2023-10-26 08:58:56,285 INFO  L495      AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 158 flow
[2023-10-26 08:58:56,287 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:56,287 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:56,287 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:56,287 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-10-26 08:58:56,288 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:58:56,288 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:56,288 INFO  L85        PathProgramCache]: Analyzing trace with hash 205097922, now seen corresponding path program 1 times
[2023-10-26 08:58:56,288 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:56,290 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842203002]
[2023-10-26 08:58:56,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:56,291 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:56,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:56,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-26 08:58:56,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:56,323 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842203002]
[2023-10-26 08:58:56,323 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842203002] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:56,323 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:56,323 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:58:56,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038505561]
[2023-10-26 08:58:56,323 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:56,324 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:56,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:56,324 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:56,324 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:56,344 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 87 out of 172
[2023-10-26 08:58:56,344 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 158 flow. Second operand  has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 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)
[2023-10-26 08:58:56,350 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:56,350 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 172
[2023-10-26 08:58:56,351 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:57,461 INFO  L130       PetriNetUnfolder]: 5873/9526 cut-off events.
[2023-10-26 08:58:57,466 INFO  L131       PetriNetUnfolder]: For 4841/4966 co-relation queries the response was YES.
[2023-10-26 08:58:57,474 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 22533 conditions, 9526 events. 5873/9526 cut-off events. For 4841/4966 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 60023 event pairs, 3788 based on Foata normal form. 0/9071 useless extension candidates. Maximal degree in co-relation 8932. Up to 6762 conditions per place. 
[2023-10-26 08:58:57,536 INFO  L137   encePairwiseOnDemand]: 165/172 looper letters, 53 selfloop transitions, 9 changer transitions 0/69 dead transitions.
[2023-10-26 08:58:57,536 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 377 flow
[2023-10-26 08:58:57,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:57,537 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:57,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions.
[2023-10-26 08:58:57,538 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6085271317829457
[2023-10-26 08:58:57,538 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 314 transitions.
[2023-10-26 08:58:57,538 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions.
[2023-10-26 08:58:57,538 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:57,538 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions.
[2023-10-26 08:58:57,539 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,539 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,540 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,540 INFO  L175             Difference]: Start difference. First operand has 49 places, 43 transitions, 158 flow. Second operand 3 states and 314 transitions.
[2023-10-26 08:58:57,540 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 377 flow
[2023-10-26 08:58:57,565 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:58:57,567 INFO  L231             Difference]: Finished difference. Result has 51 places, 50 transitions, 234 flow
[2023-10-26 08:58:57,567 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=51, PETRI_TRANSITIONS=50}
[2023-10-26 08:58:57,567 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places.
[2023-10-26 08:58:57,568 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 234 flow
[2023-10-26 08:58:57,568 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 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)
[2023-10-26 08:58:57,568 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:57,568 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:57,568 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-10-26 08:58:57,568 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:58:57,569 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:57,569 INFO  L85        PathProgramCache]: Analyzing trace with hash 778148188, now seen corresponding path program 1 times
[2023-10-26 08:58:57,571 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:57,571 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260209152]
[2023-10-26 08:58:57,571 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:57,571 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:57,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:58:57,706 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:58:57,706 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:58:57,706 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260209152]
[2023-10-26 08:58:57,706 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260209152] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:58:57,706 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:58:57,706 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:58:57,706 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196127911]
[2023-10-26 08:58:57,707 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:58:57,707 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:58:57,707 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:58:57,707 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:58:57,707 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:58:57,730 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 88 out of 172
[2023-10-26 08:58:57,731 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 234 flow. Second operand  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,731 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:58:57,731 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 172
[2023-10-26 08:58:57,731 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:58:57,957 INFO  L130       PetriNetUnfolder]: 663/1671 cut-off events.
[2023-10-26 08:58:57,958 INFO  L131       PetriNetUnfolder]: For 1269/1279 co-relation queries the response was YES.
[2023-10-26 08:58:57,959 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4394 conditions, 1671 events. 663/1671 cut-off events. For 1269/1279 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11341 event pairs, 162 based on Foata normal form. 312/1943 useless extension candidates. Maximal degree in co-relation 1621. Up to 1001 conditions per place. 
[2023-10-26 08:58:57,962 INFO  L137   encePairwiseOnDemand]: 166/172 looper letters, 40 selfloop transitions, 7 changer transitions 0/58 dead transitions.
[2023-10-26 08:58:57,976 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 58 transitions, 347 flow
[2023-10-26 08:58:57,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:58:57,977 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:58:57,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions.
[2023-10-26 08:58:57,978 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5910852713178295
[2023-10-26 08:58:57,978 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 305 transitions.
[2023-10-26 08:58:57,978 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions.
[2023-10-26 08:58:57,979 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:58:57,979 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions.
[2023-10-26 08:58:57,979 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,980 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,980 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,980 INFO  L175             Difference]: Start difference. First operand has 51 places, 50 transitions, 234 flow. Second operand 3 states and 305 transitions.
[2023-10-26 08:58:57,981 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 58 transitions, 347 flow
[2023-10-26 08:58:57,984 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 335 flow, removed 2 selfloop flow, removed 2 redundant places.
[2023-10-26 08:58:57,984 INFO  L231             Difference]: Finished difference. Result has 51 places, 44 transitions, 188 flow
[2023-10-26 08:58:57,985 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=51, PETRI_TRANSITIONS=44}
[2023-10-26 08:58:57,986 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places.
[2023-10-26 08:58:57,986 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 188 flow
[2023-10-26 08:58:57,986 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:58:57,986 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:58:57,986 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-10-26 08:58:57,986 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-10-26 08:58:57,986 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-10-26 08:58:57,987 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:58:57,987 INFO  L85        PathProgramCache]: Analyzing trace with hash -1624936462, now seen corresponding path program 1 times
[2023-10-26 08:58:57,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:58:57,987 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992786822]
[2023-10-26 08:58:57,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:58:57,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:58:58,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:58:58,015 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:58:58,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:58:58,030 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:58:58,041 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:58:58,042 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining)
[2023-10-26 08:58:58,042 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining)
[2023-10-26 08:58:58,042 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining)
[2023-10-26 08:58:58,042 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining)
[2023-10-26 08:58:58,042 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining)
[2023-10-26 08:58:58,042 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining)
[2023-10-26 08:58:58,043 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining)
[2023-10-26 08:58:58,043 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-10-26 08:58:58,043 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2023-10-26 08:58:58,043 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:58:58,044 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-10-26 08:58:58,079 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-10-26 08:58:58,083 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 122 places, 119 transitions, 282 flow
[2023-10-26 08:58:58,179 INFO  L130       PetriNetUnfolder]: 42/531 cut-off events.
[2023-10-26 08:58:58,179 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-26 08:58:58,180 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 586 conditions, 531 events. 42/531 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2085 event pairs, 6 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 320. Up to 32 conditions per place. 
[2023-10-26 08:58:58,180 INFO  L82        GeneralOperation]: Start removeDead. Operand has 122 places, 119 transitions, 282 flow
[2023-10-26 08:58:58,181 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 122 places, 119 transitions, 282 flow
[2023-10-26 08:58:58,181 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:58:58,182 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 119 transitions, 282 flow
[2023-10-26 08:58:58,182 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 119 transitions, 282 flow
[2023-10-26 08:58:58,182 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 122 places, 119 transitions, 282 flow
[2023-10-26 08:58:58,256 INFO  L130       PetriNetUnfolder]: 42/531 cut-off events.
[2023-10-26 08:58:58,269 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-26 08:58:58,270 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 586 conditions, 531 events. 42/531 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2085 event pairs, 6 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 320. Up to 32 conditions per place. 
[2023-10-26 08:58:58,291 INFO  L119        LiptonReduction]: Number of co-enabled transitions 6888
[2023-10-26 08:59:00,116 INFO  L134        LiptonReduction]: Checked pairs total: 17351
[2023-10-26 08:59:00,116 INFO  L136        LiptonReduction]: Total number of compositions: 76
[2023-10-26 08:59:00,117 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:59:00,118 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;@5b353347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:59:00,118 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2023-10-26 08:59:00,118 INFO  L130       PetriNetUnfolder]: 0/4 cut-off events.
[2023-10-26 08:59:00,118 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:59:00,119 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:00,119 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-10-26 08:59:00,119 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:00,119 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:00,119 INFO  L85        PathProgramCache]: Analyzing trace with hash 818201, now seen corresponding path program 1 times
[2023-10-26 08:59:00,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:00,119 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288129153]
[2023-10-26 08:59:00,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:00,119 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:00,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:00,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:59:00,168 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:00,168 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288129153]
[2023-10-26 08:59:00,169 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288129153] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:00,169 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:00,169 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:59:00,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155163447]
[2023-10-26 08:59:00,169 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:00,169 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:00,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:00,170 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:00,170 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:00,183 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 106 out of 195
[2023-10-26 08:59:00,183 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 136 flow. Second operand  has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:00,183 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:00,183 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 195
[2023-10-26 08:59:00,184 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:03,519 INFO  L130       PetriNetUnfolder]: 26018/38924 cut-off events.
[2023-10-26 08:59:03,519 INFO  L131       PetriNetUnfolder]: For 3846/3846 co-relation queries the response was YES.
[2023-10-26 08:59:03,641 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 76589 conditions, 38924 events. 26018/38924 cut-off events. For 3846/3846 co-relation queries the response was YES. Maximal size of possible extension queue 1210. Compared 273684 event pairs, 19152 based on Foata normal form. 0/35999 useless extension candidates. Maximal degree in co-relation 10917. Up to 35539 conditions per place. 
[2023-10-26 08:59:03,912 INFO  L137   encePairwiseOnDemand]: 191/195 looper letters, 37 selfloop transitions, 2 changer transitions 0/51 dead transitions.
[2023-10-26 08:59:03,925 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 224 flow
[2023-10-26 08:59:03,926 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:03,926 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:03,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions.
[2023-10-26 08:59:03,927 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6136752136752137
[2023-10-26 08:59:03,927 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 359 transitions.
[2023-10-26 08:59:03,927 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions.
[2023-10-26 08:59:03,927 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:03,928 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions.
[2023-10-26 08:59:03,928 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:03,929 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:03,929 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:03,929 INFO  L175             Difference]: Start difference. First operand has 51 places, 46 transitions, 136 flow. Second operand 3 states and 359 transitions.
[2023-10-26 08:59:03,929 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 224 flow
[2023-10-26 08:59:03,931 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:59:03,932 INFO  L231             Difference]: Finished difference. Result has 53 places, 46 transitions, 146 flow
[2023-10-26 08:59:03,932 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=53, PETRI_TRANSITIONS=46}
[2023-10-26 08:59:03,932 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places.
[2023-10-26 08:59:03,933 INFO  L495      AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 146 flow
[2023-10-26 08:59:03,933 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:03,933 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:03,933 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:03,933 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-10-26 08:59:03,933 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:03,934 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:03,934 INFO  L85        PathProgramCache]: Analyzing trace with hash 461890703, now seen corresponding path program 1 times
[2023-10-26 08:59:03,934 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:03,934 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161773106]
[2023-10-26 08:59:03,934 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:03,934 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:03,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:03,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:59:03,962 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:03,962 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161773106]
[2023-10-26 08:59:03,962 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161773106] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:03,962 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:03,963 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:59:03,963 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638296549]
[2023-10-26 08:59:03,963 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:03,963 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:03,963 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:03,963 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:03,964 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:03,981 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195
[2023-10-26 08:59:03,982 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 146 flow. Second operand  has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:03,997 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:03,997 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195
[2023-10-26 08:59:03,997 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:10,811 INFO  L130       PetriNetUnfolder]: 63239/89865 cut-off events.
[2023-10-26 08:59:10,811 INFO  L131       PetriNetUnfolder]: For 12171/12171 co-relation queries the response was YES.
[2023-10-26 08:59:10,959 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 183282 conditions, 89865 events. 63239/89865 cut-off events. For 12171/12171 co-relation queries the response was YES. Maximal size of possible extension queue 2435. Compared 619750 event pairs, 44385 based on Foata normal form. 0/83611 useless extension candidates. Maximal degree in co-relation 183230. Up to 66785 conditions per place. 
[2023-10-26 08:59:11,692 INFO  L137   encePairwiseOnDemand]: 187/195 looper letters, 62 selfloop transitions, 7 changer transitions 0/77 dead transitions.
[2023-10-26 08:59:11,693 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 77 transitions, 383 flow
[2023-10-26 08:59:11,694 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:11,694 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:11,696 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions.
[2023-10-26 08:59:11,696 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.629059829059829
[2023-10-26 08:59:11,696 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 368 transitions.
[2023-10-26 08:59:11,696 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions.
[2023-10-26 08:59:11,697 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:11,697 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions.
[2023-10-26 08:59:11,697 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:11,712 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:11,712 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:11,725 INFO  L175             Difference]: Start difference. First operand has 53 places, 46 transitions, 146 flow. Second operand 3 states and 368 transitions.
[2023-10-26 08:59:11,725 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 77 transitions, 383 flow
[2023-10-26 08:59:11,732 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 77 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:59:11,735 INFO  L231             Difference]: Finished difference. Result has 56 places, 52 transitions, 198 flow
[2023-10-26 08:59:11,735 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=56, PETRI_TRANSITIONS=52}
[2023-10-26 08:59:11,736 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places.
[2023-10-26 08:59:11,736 INFO  L495      AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 198 flow
[2023-10-26 08:59:11,736 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:11,737 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:11,737 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:11,737 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-10-26 08:59:11,737 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:11,738 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:11,738 INFO  L85        PathProgramCache]: Analyzing trace with hash 1277334436, now seen corresponding path program 1 times
[2023-10-26 08:59:11,738 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:11,738 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697817022]
[2023-10-26 08:59:11,738 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:11,738 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:11,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:11,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:59:11,784 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:11,784 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697817022]
[2023-10-26 08:59:11,784 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697817022] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:11,784 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:11,784 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:59:11,786 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516813874]
[2023-10-26 08:59:11,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:11,786 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-10-26 08:59:11,786 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:11,787 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-10-26 08:59:11,787 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-10-26 08:59:11,834 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 104 out of 195
[2023-10-26 08:59:11,834 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 198 flow. Second operand  has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 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)
[2023-10-26 08:59:11,834 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:11,834 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 195
[2023-10-26 08:59:11,835 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:15,881 INFO  L130       PetriNetUnfolder]: 38334/57310 cut-off events.
[2023-10-26 08:59:15,881 INFO  L131       PetriNetUnfolder]: For 24745/30975 co-relation queries the response was YES.
[2023-10-26 08:59:15,983 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 133333 conditions, 57310 events. 38334/57310 cut-off events. For 24745/30975 co-relation queries the response was YES. Maximal size of possible extension queue 1673. Compared 426467 event pairs, 21787 based on Foata normal form. 3440/57900 useless extension candidates. Maximal degree in co-relation 40685. Up to 34292 conditions per place. 
[2023-10-26 08:59:16,165 INFO  L137   encePairwiseOnDemand]: 191/195 looper letters, 61 selfloop transitions, 3 changer transitions 0/78 dead transitions.
[2023-10-26 08:59:16,165 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 78 transitions, 408 flow
[2023-10-26 08:59:16,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-10-26 08:59:16,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-10-26 08:59:16,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions.
[2023-10-26 08:59:16,169 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6064102564102564
[2023-10-26 08:59:16,169 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 473 transitions.
[2023-10-26 08:59:16,169 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 473 transitions.
[2023-10-26 08:59:16,169 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:16,169 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 473 transitions.
[2023-10-26 08:59:16,179 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:16,180 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:16,182 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:16,182 INFO  L175             Difference]: Start difference. First operand has 56 places, 52 transitions, 198 flow. Second operand 4 states and 473 transitions.
[2023-10-26 08:59:16,182 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 78 transitions, 408 flow
[2023-10-26 08:59:16,276 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 78 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:59:16,279 INFO  L231             Difference]: Finished difference. Result has 58 places, 53 transitions, 200 flow
[2023-10-26 08:59:16,279 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=58, PETRI_TRANSITIONS=53}
[2023-10-26 08:59:16,280 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places.
[2023-10-26 08:59:16,281 INFO  L495      AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 200 flow
[2023-10-26 08:59:16,281 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 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)
[2023-10-26 08:59:16,281 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:16,281 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:16,295 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-10-26 08:59:16,295 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:16,296 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:16,296 INFO  L85        PathProgramCache]: Analyzing trace with hash 422619653, now seen corresponding path program 1 times
[2023-10-26 08:59:16,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:16,297 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81585732]
[2023-10-26 08:59:16,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:16,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:16,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:16,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-26 08:59:16,341 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:16,341 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81585732]
[2023-10-26 08:59:16,341 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81585732] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:16,342 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:16,342 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:59:16,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981064889]
[2023-10-26 08:59:16,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:16,342 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:16,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:16,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:16,343 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:16,360 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195
[2023-10-26 08:59:16,360 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 200 flow. Second operand  has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:16,360 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:16,360 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195
[2023-10-26 08:59:16,361 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:23,724 INFO  L130       PetriNetUnfolder]: 61761/89630 cut-off events.
[2023-10-26 08:59:23,725 INFO  L131       PetriNetUnfolder]: For 43426/44605 co-relation queries the response was YES.
[2023-10-26 08:59:23,898 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 214372 conditions, 89630 events. 61761/89630 cut-off events. For 43426/44605 co-relation queries the response was YES. Maximal size of possible extension queue 2204. Compared 635112 event pairs, 46546 based on Foata normal form. 0/85570 useless extension candidates. Maximal degree in co-relation 77115. Up to 75594 conditions per place. 
[2023-10-26 08:59:24,249 INFO  L137   encePairwiseOnDemand]: 188/195 looper letters, 68 selfloop transitions, 10 changer transitions 0/86 dead transitions.
[2023-10-26 08:59:24,249 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 86 transitions, 483 flow
[2023-10-26 08:59:24,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:24,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:24,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions.
[2023-10-26 08:59:24,251 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6256410256410256
[2023-10-26 08:59:24,252 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 366 transitions.
[2023-10-26 08:59:24,252 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions.
[2023-10-26 08:59:24,252 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:24,253 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions.
[2023-10-26 08:59:24,254 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:24,256 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:24,256 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:24,256 INFO  L175             Difference]: Start difference. First operand has 58 places, 53 transitions, 200 flow. Second operand 3 states and 366 transitions.
[2023-10-26 08:59:24,256 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 86 transitions, 483 flow
[2023-10-26 08:59:24,837 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 86 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:59:24,838 INFO  L231             Difference]: Finished difference. Result has 59 places, 61 transitions, 278 flow
[2023-10-26 08:59:24,839 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=59, PETRI_TRANSITIONS=61}
[2023-10-26 08:59:24,839 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places.
[2023-10-26 08:59:24,839 INFO  L495      AbstractCegarLoop]: Abstraction has has 59 places, 61 transitions, 278 flow
[2023-10-26 08:59:24,839 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:24,839 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:24,840 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:24,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-10-26 08:59:24,840 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:24,840 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:24,840 INFO  L85        PathProgramCache]: Analyzing trace with hash 1345369614, now seen corresponding path program 1 times
[2023-10-26 08:59:24,840 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:24,840 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794181444]
[2023-10-26 08:59:24,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:24,841 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:24,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:24,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:59:24,941 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:24,941 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794181444]
[2023-10-26 08:59:24,941 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794181444] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:24,941 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:24,941 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-26 08:59:24,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105431674]
[2023-10-26 08:59:24,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:24,942 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:24,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:24,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:24,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:24,957 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195
[2023-10-26 08:59:24,958 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 61 transitions, 278 flow. Second operand  has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:24,959 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:24,959 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195
[2023-10-26 08:59:24,959 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:25,514 INFO  L130       PetriNetUnfolder]: 2892/6733 cut-off events.
[2023-10-26 08:59:25,515 INFO  L131       PetriNetUnfolder]: For 5552/5590 co-relation queries the response was YES.
[2023-10-26 08:59:25,522 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 17320 conditions, 6733 events. 2892/6733 cut-off events. For 5552/5590 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 57260 event pairs, 659 based on Foata normal form. 2073/8642 useless extension candidates. Maximal degree in co-relation 6273. Up to 4336 conditions per place. 
[2023-10-26 08:59:25,534 INFO  L137   encePairwiseOnDemand]: 187/195 looper letters, 47 selfloop transitions, 9 changer transitions 0/68 dead transitions.
[2023-10-26 08:59:25,534 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 410 flow
[2023-10-26 08:59:25,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:25,534 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:25,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions.
[2023-10-26 08:59:25,543 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6
[2023-10-26 08:59:25,543 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 351 transitions.
[2023-10-26 08:59:25,543 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions.
[2023-10-26 08:59:25,543 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:25,543 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions.
[2023-10-26 08:59:25,544 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:25,545 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:25,546 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:25,546 INFO  L175             Difference]: Start difference. First operand has 59 places, 61 transitions, 278 flow. Second operand 3 states and 351 transitions.
[2023-10-26 08:59:25,546 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 410 flow
[2023-10-26 08:59:25,562 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 403 flow, removed 2 selfloop flow, removed 1 redundant places.
[2023-10-26 08:59:25,578 INFO  L231             Difference]: Finished difference. Result has 60 places, 52 transitions, 226 flow
[2023-10-26 08:59:25,578 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=60, PETRI_TRANSITIONS=52}
[2023-10-26 08:59:25,578 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places.
[2023-10-26 08:59:25,579 INFO  L495      AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 226 flow
[2023-10-26 08:59:25,579 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:25,579 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:25,579 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:25,579 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-10-26 08:59:25,579 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:25,580 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:25,580 INFO  L85        PathProgramCache]: Analyzing trace with hash 1727818670, now seen corresponding path program 1 times
[2023-10-26 08:59:25,581 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:25,581 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242327152]
[2023-10-26 08:59:25,581 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:25,581 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:25,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:25,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-10-26 08:59:25,618 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:25,618 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242327152]
[2023-10-26 08:59:25,618 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242327152] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:25,618 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:25,619 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:59:25,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696533117]
[2023-10-26 08:59:25,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:25,619 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:25,619 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:25,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:25,620 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:25,650 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195
[2023-10-26 08:59:25,650 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 226 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)
[2023-10-26 08:59:25,651 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:25,651 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195
[2023-10-26 08:59:25,651 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:26,193 INFO  L130       PetriNetUnfolder]: 3391/7796 cut-off events.
[2023-10-26 08:59:26,193 INFO  L131       PetriNetUnfolder]: For 6336/6374 co-relation queries the response was YES.
[2023-10-26 08:59:26,200 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 20996 conditions, 7796 events. 3391/7796 cut-off events. For 6336/6374 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 65692 event pairs, 3007 based on Foata normal form. 0/7409 useless extension candidates. Maximal degree in co-relation 5279. Up to 6329 conditions per place. 
[2023-10-26 08:59:26,213 INFO  L137   encePairwiseOnDemand]: 191/195 looper letters, 54 selfloop transitions, 3 changer transitions 0/65 dead transitions.
[2023-10-26 08:59:26,213 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 400 flow
[2023-10-26 08:59:26,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:26,214 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:26,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions.
[2023-10-26 08:59:26,215 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5982905982905983
[2023-10-26 08:59:26,215 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 350 transitions.
[2023-10-26 08:59:26,215 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions.
[2023-10-26 08:59:26,215 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:26,216 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions.
[2023-10-26 08:59:26,216 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:26,217 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:26,217 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:26,217 INFO  L175             Difference]: Start difference. First operand has 60 places, 52 transitions, 226 flow. Second operand 3 states and 350 transitions.
[2023-10-26 08:59:26,218 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 400 flow
[2023-10-26 08:59:26,245 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 391 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-26 08:59:26,246 INFO  L231             Difference]: Finished difference. Result has 62 places, 54 transitions, 242 flow
[2023-10-26 08:59:26,246 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=62, PETRI_TRANSITIONS=54}
[2023-10-26 08:59:26,247 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places.
[2023-10-26 08:59:26,247 INFO  L495      AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 242 flow
[2023-10-26 08:59:26,247 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)
[2023-10-26 08:59:26,247 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:26,247 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:26,247 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-10-26 08:59:26,247 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:26,248 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:26,248 INFO  L85        PathProgramCache]: Analyzing trace with hash 948274906, now seen corresponding path program 1 times
[2023-10-26 08:59:26,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:26,248 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54569059]
[2023-10-26 08:59:26,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:26,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:26,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:26,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-10-26 08:59:26,295 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:26,295 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54569059]
[2023-10-26 08:59:26,295 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54569059] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:26,295 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:26,295 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:59:26,295 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461820371]
[2023-10-26 08:59:26,295 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:26,296 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:26,296 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:26,297 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:26,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:26,326 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 102 out of 195
[2023-10-26 08:59:26,327 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 242 flow. Second operand  has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:26,327 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:26,327 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 195
[2023-10-26 08:59:26,327 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:27,263 INFO  L130       PetriNetUnfolder]: 4657/10054 cut-off events.
[2023-10-26 08:59:27,264 INFO  L131       PetriNetUnfolder]: For 8934/8991 co-relation queries the response was YES.
[2023-10-26 08:59:27,274 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 27767 conditions, 10054 events. 4657/10054 cut-off events. For 8934/8991 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 83633 event pairs, 2809 based on Foata normal form. 0/9753 useless extension candidates. Maximal degree in co-relation 9817. Up to 6857 conditions per place. 
[2023-10-26 08:59:27,287 INFO  L137   encePairwiseOnDemand]: 188/195 looper letters, 60 selfloop transitions, 9 changer transitions 0/76 dead transitions.
[2023-10-26 08:59:27,288 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 76 transitions, 460 flow
[2023-10-26 08:59:27,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:27,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:27,305 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions.
[2023-10-26 08:59:27,305 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6273504273504273
[2023-10-26 08:59:27,305 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 367 transitions.
[2023-10-26 08:59:27,306 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions.
[2023-10-26 08:59:27,306 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:27,306 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions.
[2023-10-26 08:59:27,307 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:27,307 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:27,308 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:27,308 INFO  L175             Difference]: Start difference. First operand has 62 places, 54 transitions, 242 flow. Second operand 3 states and 367 transitions.
[2023-10-26 08:59:27,308 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 76 transitions, 460 flow
[2023-10-26 08:59:27,317 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 451 flow, removed 2 selfloop flow, removed 1 redundant places.
[2023-10-26 08:59:27,330 INFO  L231             Difference]: Finished difference. Result has 65 places, 59 transitions, 311 flow
[2023-10-26 08:59:27,330 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=65, PETRI_TRANSITIONS=59}
[2023-10-26 08:59:27,330 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 14 predicate places.
[2023-10-26 08:59:27,330 INFO  L495      AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 311 flow
[2023-10-26 08:59:27,331 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:27,331 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:27,331 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:27,331 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-10-26 08:59:27,331 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:27,331 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:27,331 INFO  L85        PathProgramCache]: Analyzing trace with hash 441686513, now seen corresponding path program 1 times
[2023-10-26 08:59:27,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:27,332 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435293894]
[2023-10-26 08:59:27,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:27,333 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:27,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:27,447 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:59:27,447 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:27,447 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435293894]
[2023-10-26 08:59:27,447 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435293894] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:59:27,448 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078365162]
[2023-10-26 08:59:27,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:27,448 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:59:27,448 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:59:27,473 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:59:27,507 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-10-26 08:59:27,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:27,618 INFO  L263         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-10-26 08:59:27,620 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:59:27,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:59:27,895 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-10-26 08:59:27,895 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078365162] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:27,895 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-10-26 08:59:27,895 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11
[2023-10-26 08:59:27,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258178240]
[2023-10-26 08:59:27,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:27,896 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-10-26 08:59:27,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:27,896 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-10-26 08:59:27,896 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2023-10-26 08:59:27,958 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 105 out of 195
[2023-10-26 08:59:27,959 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 311 flow. Second operand  has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:27,959 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:27,959 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 195
[2023-10-26 08:59:27,959 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:28,783 INFO  L130       PetriNetUnfolder]: 3751/9031 cut-off events.
[2023-10-26 08:59:28,784 INFO  L131       PetriNetUnfolder]: For 9473/10229 co-relation queries the response was YES.
[2023-10-26 08:59:28,797 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 25852 conditions, 9031 events. 3751/9031 cut-off events. For 9473/10229 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 80588 event pairs, 496 based on Foata normal form. 556/9451 useless extension candidates. Maximal degree in co-relation 11816. Up to 5598 conditions per place. 
[2023-10-26 08:59:28,810 INFO  L137   encePairwiseOnDemand]: 192/195 looper letters, 109 selfloop transitions, 5 changer transitions 10/139 dead transitions.
[2023-10-26 08:59:28,810 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 139 transitions, 899 flow
[2023-10-26 08:59:28,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-10-26 08:59:28,812 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-10-26 08:59:28,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 837 transitions.
[2023-10-26 08:59:28,813 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6131868131868132
[2023-10-26 08:59:28,813 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 837 transitions.
[2023-10-26 08:59:28,814 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 837 transitions.
[2023-10-26 08:59:28,814 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:28,814 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 837 transitions.
[2023-10-26 08:59:28,834 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 119.57142857142857) internal successors, (837), 7 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:28,837 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:28,837 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:28,837 INFO  L175             Difference]: Start difference. First operand has 65 places, 59 transitions, 311 flow. Second operand 7 states and 837 transitions.
[2023-10-26 08:59:28,838 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 139 transitions, 899 flow
[2023-10-26 08:59:28,876 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 139 transitions, 861 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-10-26 08:59:28,877 INFO  L231             Difference]: Finished difference. Result has 67 places, 60 transitions, 300 flow
[2023-10-26 08:59:28,877 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=300, PETRI_PLACES=67, PETRI_TRANSITIONS=60}
[2023-10-26 08:59:28,877 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 16 predicate places.
[2023-10-26 08:59:28,877 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 300 flow
[2023-10-26 08:59:28,878 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:28,878 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:28,878 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:28,885 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-10-26 08:59:29,082 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20
[2023-10-26 08:59:29,083 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:29,083 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:29,083 INFO  L85        PathProgramCache]: Analyzing trace with hash 446996961, now seen corresponding path program 1 times
[2023-10-26 08:59:29,083 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:29,083 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598430837]
[2023-10-26 08:59:29,084 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:29,084 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:29,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:29,128 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-10-26 08:59:29,128 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:29,129 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598430837]
[2023-10-26 08:59:29,129 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598430837] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:59:29,129 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:59:29,129 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-26 08:59:29,130 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308757428]
[2023-10-26 08:59:29,130 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:59:29,130 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-26 08:59:29,130 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:29,131 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-26 08:59:29,131 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-26 08:59:29,148 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195
[2023-10-26 08:59:29,149 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 300 flow. Second operand  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:29,149 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:29,149 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195
[2023-10-26 08:59:29,149 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:29,874 INFO  L130       PetriNetUnfolder]: 4370/10023 cut-off events.
[2023-10-26 08:59:29,874 INFO  L131       PetriNetUnfolder]: For 12467/12545 co-relation queries the response was YES.
[2023-10-26 08:59:29,884 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 29616 conditions, 10023 events. 4370/10023 cut-off events. For 12467/12545 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 88390 event pairs, 3427 based on Foata normal form. 0/9748 useless extension candidates. Maximal degree in co-relation 6410. Up to 8591 conditions per place. 
[2023-10-26 08:59:29,897 INFO  L137   encePairwiseOnDemand]: 191/195 looper letters, 58 selfloop transitions, 4 changer transitions 1/71 dead transitions.
[2023-10-26 08:59:29,897 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 71 transitions, 480 flow
[2023-10-26 08:59:29,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-26 08:59:29,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-26 08:59:29,904 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions.
[2023-10-26 08:59:29,905 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5948717948717949
[2023-10-26 08:59:29,905 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 348 transitions.
[2023-10-26 08:59:29,905 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions.
[2023-10-26 08:59:29,905 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:29,905 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions.
[2023-10-26 08:59:29,914 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:29,923 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:29,924 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:29,924 INFO  L175             Difference]: Start difference. First operand has 67 places, 60 transitions, 300 flow. Second operand 3 states and 348 transitions.
[2023-10-26 08:59:29,924 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 71 transitions, 480 flow
[2023-10-26 08:59:29,931 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 71 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-26 08:59:29,935 INFO  L231             Difference]: Finished difference. Result has 68 places, 62 transitions, 329 flow
[2023-10-26 08:59:29,935 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=68, PETRI_TRANSITIONS=62}
[2023-10-26 08:59:29,936 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places.
[2023-10-26 08:59:29,936 INFO  L495      AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 329 flow
[2023-10-26 08:59:29,936 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:29,936 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:29,936 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:29,937 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-10-26 08:59:29,937 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:29,937 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:29,937 INFO  L85        PathProgramCache]: Analyzing trace with hash -1700190220, now seen corresponding path program 1 times
[2023-10-26 08:59:29,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:29,937 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832175711]
[2023-10-26 08:59:29,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:29,938 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:29,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:30,044 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:59:30,045 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:30,045 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832175711]
[2023-10-26 08:59:30,045 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832175711] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:59:30,045 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792372753]
[2023-10-26 08:59:30,045 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:30,045 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:59:30,046 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:59:30,062 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:59:30,101 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-10-26 08:59:30,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:30,190 INFO  L263         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-10-26 08:59:30,192 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:59:30,287 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:59:30,288 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-26 08:59:30,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-10-26 08:59:30,333 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792372753] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-26 08:59:30,333 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-26 08:59:30,333 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8
[2023-10-26 08:59:30,335 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070947260]
[2023-10-26 08:59:30,335 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-26 08:59:30,335 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-10-26 08:59:30,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:30,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-10-26 08:59:30,336 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72
[2023-10-26 08:59:30,390 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 103 out of 195
[2023-10-26 08:59:30,391 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 329 flow. Second operand  has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:30,391 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:30,391 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 195
[2023-10-26 08:59:30,391 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:31,365 INFO  L130       PetriNetUnfolder]: 3198/7514 cut-off events.
[2023-10-26 08:59:31,365 INFO  L131       PetriNetUnfolder]: For 9553/10123 co-relation queries the response was YES.
[2023-10-26 08:59:31,376 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 21885 conditions, 7514 events. 3198/7514 cut-off events. For 9553/10123 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 64512 event pairs, 427 based on Foata normal form. 369/7645 useless extension candidates. Maximal degree in co-relation 7441. Up to 5705 conditions per place. 
[2023-10-26 08:59:31,386 INFO  L137   encePairwiseOnDemand]: 192/195 looper letters, 86 selfloop transitions, 5 changer transitions 0/106 dead transitions.
[2023-10-26 08:59:31,386 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 106 transitions, 663 flow
[2023-10-26 08:59:31,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-26 08:59:31,386 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-26 08:59:31,397 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 701 transitions.
[2023-10-26 08:59:31,413 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5991452991452991
[2023-10-26 08:59:31,413 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 701 transitions.
[2023-10-26 08:59:31,414 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 701 transitions.
[2023-10-26 08:59:31,414 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:31,414 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 701 transitions.
[2023-10-26 08:59:31,415 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:31,417 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:31,417 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:31,417 INFO  L175             Difference]: Start difference. First operand has 68 places, 62 transitions, 329 flow. Second operand 6 states and 701 transitions.
[2023-10-26 08:59:31,417 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 106 transitions, 663 flow
[2023-10-26 08:59:31,435 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 106 transitions, 645 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-10-26 08:59:31,437 INFO  L231             Difference]: Finished difference. Result has 75 places, 62 transitions, 335 flow
[2023-10-26 08:59:31,437 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=335, PETRI_PLACES=75, PETRI_TRANSITIONS=62}
[2023-10-26 08:59:31,437 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 24 predicate places.
[2023-10-26 08:59:31,437 INFO  L495      AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 335 flow
[2023-10-26 08:59:31,442 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:31,442 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:59:31,442 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:31,464 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-10-26 08:59:31,646 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:59:31,646 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] ===
[2023-10-26 08:59:31,647 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:59:31,647 INFO  L85        PathProgramCache]: Analyzing trace with hash 1531619191, now seen corresponding path program 1 times
[2023-10-26 08:59:31,647 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:59:31,647 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217057595]
[2023-10-26 08:59:31,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:31,647 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:59:31,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:31,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2023-10-26 08:59:31,769 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:59:31,770 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217057595]
[2023-10-26 08:59:31,770 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217057595] provided 0 perfect and 1 imperfect interpolant sequences
[2023-10-26 08:59:31,770 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544710088]
[2023-10-26 08:59:31,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:59:31,770 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-26 08:59:31,770 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:59:31,776 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-10-26 08:59:31,840 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-10-26 08:59:31,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:59:31,913 INFO  L263         TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-10-26 08:59:31,915 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-26 08:59:31,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2023-10-26 08:59:31,999 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-10-26 08:59:32,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2023-10-26 08:59:32,056 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544710088] provided 0 perfect and 2 imperfect interpolant sequences
[2023-10-26 08:59:32,056 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-10-26 08:59:32,056 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2023-10-26 08:59:32,057 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548472888]
[2023-10-26 08:59:32,057 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-10-26 08:59:32,058 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-10-26 08:59:32,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:59:32,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-10-26 08:59:32,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90
[2023-10-26 08:59:32,185 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 103 out of 195
[2023-10-26 08:59:32,186 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 335 flow. Second operand  has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:32,186 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:59:32,186 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 195
[2023-10-26 08:59:32,186 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:59:32,711 INFO  L130       PetriNetUnfolder]: 1745/3788 cut-off events.
[2023-10-26 08:59:32,711 INFO  L131       PetriNetUnfolder]: For 8557/8994 co-relation queries the response was YES.
[2023-10-26 08:59:32,716 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 10829 conditions, 3788 events. 1745/3788 cut-off events. For 8557/8994 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 25893 event pairs, 357 based on Foata normal form. 615/4402 useless extension candidates. Maximal degree in co-relation 4865. Up to 1090 conditions per place. 
[2023-10-26 08:59:32,718 INFO  L137   encePairwiseOnDemand]: 190/195 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions.
[2023-10-26 08:59:32,718 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 129 transitions, 778 flow
[2023-10-26 08:59:32,718 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-10-26 08:59:32,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-10-26 08:59:32,720 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 844 transitions.
[2023-10-26 08:59:32,720 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6183150183150183
[2023-10-26 08:59:32,720 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 844 transitions.
[2023-10-26 08:59:32,721 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 844 transitions.
[2023-10-26 08:59:32,722 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:59:32,722 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 844 transitions.
[2023-10-26 08:59:32,723 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 120.57142857142857) internal successors, (844), 7 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:32,726 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:32,743 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:32,743 INFO  L175             Difference]: Start difference. First operand has 75 places, 62 transitions, 335 flow. Second operand 7 states and 844 transitions.
[2023-10-26 08:59:32,743 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 129 transitions, 778 flow
[2023-10-26 08:59:32,748 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 129 transitions, 683 flow, removed 28 selfloop flow, removed 10 redundant places.
[2023-10-26 08:59:32,762 INFO  L231             Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow
[2023-10-26 08:59:32,762 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0}
[2023-10-26 08:59:32,762 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places.
[2023-10-26 08:59:32,762 INFO  L495      AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow
[2023-10-26 08:59:32,763 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:59:32,763 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining)
[2023-10-26 08:59:32,763 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining)
[2023-10-26 08:59:32,763 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining)
[2023-10-26 08:59:32,763 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining)
[2023-10-26 08:59:32,763 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining)
[2023-10-26 08:59:32,763 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining)
[2023-10-26 08:59:32,764 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining)
[2023-10-26 08:59:32,764 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining)
[2023-10-26 08:59:32,770 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
[2023-10-26 08:59:32,968 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2023-10-26 08:59:32,968 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:59:32,974 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances
[2023-10-26 08:59:32,975 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-10-26 08:59:32,987 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:59:32 BasicIcfg
[2023-10-26 08:59:32,987 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-10-26 08:59:32,987 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-10-26 08:59:32,987 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2023-10-26 08:59:32,988 INFO  L275        PluginConnector]: Witness Printer initialized
[2023-10-26 08:59:32,988 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:58:44" (3/4) ...
[2023-10-26 08:59:32,990 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2023-10-26 08:59:32,994 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure thread
[2023-10-26 08:59:33,013 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2023-10-26 08:59:33,013 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-10-26 08:59:33,013 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2023-10-26 08:59:33,065 INFO  L141         WitnessManager]: Wrote witness to /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/witness.graphml
[2023-10-26 08:59:33,065 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-10-26 08:59:33,066 INFO  L158              Benchmark]: Toolchain (without parser) took 50227.80ms. Allocated memory was 43.8MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 13.5MB in the beginning and 503.0MB in the end (delta: -489.5MB). Peak memory consumption was 701.7MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,066 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 32.5MB. Free memory was 11.6MB in the beginning and 11.6MB in the end (delta: 27.4kB). Peak memory consumption was 27.4kB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,066 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 676.09ms. Allocated memory is still 43.8MB. Free memory was 13.3MB in the beginning and 16.7MB in the end (delta: -3.4MB). Peak memory consumption was 2.4MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,066 INFO  L158              Benchmark]: Boogie Procedure Inliner took 93.57ms. Allocated memory is still 43.8MB. Free memory was 16.7MB in the beginning and 14.7MB in the end (delta: 1.9MB). Peak memory consumption was 1.9MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,067 INFO  L158              Benchmark]: Boogie Preprocessor took 65.13ms. Allocated memory is still 43.8MB. Free memory was 14.7MB in the beginning and 13.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.5MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,068 INFO  L158              Benchmark]: RCFGBuilder took 634.82ms. Allocated memory is still 43.8MB. Free memory was 13.2MB in the beginning and 12.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.7MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,068 INFO  L158              Benchmark]: TraceAbstraction took 48665.21ms. Allocated memory was 43.8MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 11.6MB in the beginning and 509.7MB in the end (delta: -498.1MB). Peak memory consumption was 693.1MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,069 INFO  L158              Benchmark]: Witness Printer took 77.77ms. Allocated memory is still 1.2GB. Free memory was 509.7MB in the beginning and 503.0MB in the end (delta: 6.7MB). Peak memory consumption was 6.7MB. Max. memory is 15.6GB.
[2023-10-26 08:59:33,071 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 32.5MB. Free memory was 11.6MB in the beginning and 11.6MB in the end (delta: 27.4kB). Peak memory consumption was 27.4kB. Max. memory is 15.6GB.
 * CACSL2BoogieTranslator took 676.09ms. Allocated memory is still 43.8MB. Free memory was 13.3MB in the beginning and 16.7MB in the end (delta: -3.4MB). Peak memory consumption was 2.4MB. Max. memory is 15.6GB.
 * Boogie Procedure Inliner took 93.57ms. Allocated memory is still 43.8MB. Free memory was 16.7MB in the beginning and 14.7MB in the end (delta: 1.9MB). Peak memory consumption was 1.9MB. Max. memory is 15.6GB.
 * Boogie Preprocessor took 65.13ms. Allocated memory is still 43.8MB. Free memory was 14.7MB in the beginning and 13.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.5MB. Max. memory is 15.6GB.
 * RCFGBuilder took 634.82ms. Allocated memory is still 43.8MB. Free memory was 13.2MB in the beginning and 12.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.7MB. Max. memory is 15.6GB.
 * TraceAbstraction took 48665.21ms. Allocated memory was 43.8MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 11.6MB in the beginning and 509.7MB in the end (delta: -498.1MB). Peak memory consumption was 693.1MB. Max. memory is 15.6GB.
 * Witness Printer took 77.77ms. Allocated memory is still 1.2GB. Free memory was 509.7MB in the beginning and 503.0MB in the end (delta: 6.7MB). Peak memory consumption was 6.7MB. Max. memory is 15.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 2.4s, 71 PlacesBefore, 20 PlacesAfterwards, 71 TransitionsBefore, 18 TransitionsAfterwards, 896 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 57 TotalNumberOfCompositions, 1633 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1004, independent: 917, independent conditional: 0, independent unconditional: 917, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 475, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1004, independent: 456, independent conditional: 0, independent unconditional: 456, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 475, unknown conditional: 0, unknown unconditional: 475] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.9s, 88 PlacesBefore, 33 PlacesAfterwards, 87 TransitionsBefore, 30 TransitionsAfterwards, 2492 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 5801 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3531, independent: 3364, independent conditional: 0, independent unconditional: 3364, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1320, independent: 1291, independent conditional: 0, independent unconditional: 1291, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3531, independent: 2073, independent conditional: 0, independent unconditional: 2073, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 1320, unknown conditional: 0, unknown unconditional: 1320] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.9s, 105 PlacesBefore, 42 PlacesAfterwards, 103 TransitionsBefore, 38 TransitionsAfterwards, 4452 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 69 TotalNumberOfCompositions, 10175 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5900, independent: 5702, independent conditional: 0, independent unconditional: 5702, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2314, independent: 2274, independent conditional: 0, independent unconditional: 2274, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5900, independent: 3428, independent conditional: 0, independent unconditional: 3428, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 2314, unknown conditional: 0, unknown unconditional: 2314] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.9s, 122 PlacesBefore, 51 PlacesAfterwards, 119 TransitionsBefore, 46 TransitionsAfterwards, 6888 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 17351 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8408, independent: 8146, independent conditional: 0, independent unconditional: 8146, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3461, independent: 3401, independent conditional: 0, independent unconditional: 3401, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8408, independent: 4745, independent conditional: 0, independent unconditional: 4745, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 3461, unknown conditional: 0, unknown unconditional: 3461] , Statistics on independence cache: Total cache size (in pairs): 384, Positive cache size: 357, Positive conditional cache size: 0, Positive unconditional cache size: 357, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - PositiveResult [Line: 691]: there are no data races
    For all program executions holds that there are no data races at this location
  - PositiveResult [Line: 689]: there are no data races
    For all program executions holds that there are no data races at this location
  - PositiveResult [Line: 678]: there are no data races
    For all program executions holds that there are no data races at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 3 procedures, 84 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 20 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances
    CFG has 4 procedures, 99 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 13 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=3, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances
    CFG has 5 procedures, 114 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 2 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances
    CFG has 6 procedures, 129 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 34.9s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1029 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 781 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1683 IncrementalHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 56 mSDtfsCounter, 1683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=10, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 6 NumberOfNonLiveVariables, 456 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 171/205 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-10-26 08:59:33,121 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
