./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-5.i --full-output --architecture 32bit


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


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8 --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 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 12:05:55,741 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 12:05:55,743 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 12:05:55,757 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 12:05:55,757 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 12:05:55,758 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 12:05:55,759 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 12:05:55,760 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 12:05:55,761 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 12:05:55,761 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 12:05:55,762 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 12:05:55,763 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 12:05:55,763 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 12:05:55,764 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 12:05:55,765 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 12:05:55,765 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 12:05:55,766 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 12:05:55,767 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 12:05:55,768 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 12:05:55,769 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 12:05:55,770 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 12:05:55,771 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 12:05:55,772 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 12:05:55,772 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 12:05:55,775 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 12:05:55,775 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 12:05:55,775 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 12:05:55,776 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 12:05:55,776 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 12:05:55,777 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 12:05:55,777 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 12:05:55,777 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 12:05:55,778 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 12:05:55,779 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 12:05:55,779 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 12:05:55,780 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 12:05:55,780 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 12:05:55,780 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 12:05:55,780 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 12:05:55,781 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 12:05:55,781 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 12:05:55,782 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2022-12-13 12:05:55,797 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 12:05:55,797 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 12:05:55,797 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 12:05:55,797 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 12:05:55,797 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 12:05:55,798 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 12:05:55,798 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 12:05:55,798 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 12:05:55,798 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 12:05:55,798 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 12:05:55,799 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 12:05:55,800 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 12:05:55,800 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 12:05:55,801 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 12:05:55,801 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 12:05:55,802 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 12:05:55,802 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8
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 -> 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d
[2022-12-13 12:05:55,994 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 12:05:56,014 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 12:05:56,017 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 12:05:56,018 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 12:05:56,018 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 12:05:56,019 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-deagle/floating_read-5.i
[2022-12-13 12:05:58,495 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 12:05:58,695 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 12:05:58,695 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/sv-benchmarks/c/pthread-deagle/floating_read-5.i
[2022-12-13 12:05:58,705 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/data/1706e1061/e31e98a90c36487798783856863cadb9/FLAG995bfee80
[2022-12-13 12:05:58,715 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/data/1706e1061/e31e98a90c36487798783856863cadb9
[2022-12-13 12:05:58,717 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 12:05:58,718 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 12:05:58,719 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 12:05:58,719 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 12:05:58,722 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 12:05:58,723 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:05:58" (1/1) ...
[2022-12-13 12:05:58,724 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a075c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:58, skipping insertion in model container
[2022-12-13 12:05:58,724 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:05:58" (1/1) ...
[2022-12-13 12:05:58,729 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 12:05:58,754 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 12:05:58,951 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 12:05:58,951 WARN  L1576              CHandler]: Possible shadowing of function thread
[2022-12-13 12:05:58,955 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 12:05:58,957 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 12:05:58,958 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 12:05:58,962 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/sv-benchmarks/c/pthread-deagle/floating_read-5.i[31193,31206]
[2022-12-13 12:05:58,964 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 12:05:58,970 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 12:05:58,993 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 12:05:58,994 WARN  L1576              CHandler]: Possible shadowing of function thread
[2022-12-13 12:05:58,994 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 12:05:58,995 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 12:05:58,996 WARN  L623        FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 12:05:58,997 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/sv-benchmarks/c/pthread-deagle/floating_read-5.i[31193,31206]
[2022-12-13 12:05:58,999 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 12:05:59,017 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 12:05:59,018 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59 WrapperNode
[2022-12-13 12:05:59,018 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 12:05:59,019 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 12:05:59,019 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 12:05:59,019 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 12:05:59,024 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,033 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,046 INFO  L138                Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63
[2022-12-13 12:05:59,047 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 12:05:59,047 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 12:05:59,047 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 12:05:59,047 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 12:05:59,053 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,054 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,055 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,056 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,059 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,062 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,063 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,063 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,065 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 12:05:59,066 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 12:05:59,066 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 12:05:59,066 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 12:05:59,067 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (1/1) ...
[2022-12-13 12:05:59,072 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 12:05:59,080 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:05:59,090 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 12:05:59,092 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 12:05:59,124 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2022-12-13 12:05:59,125 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-12-13 12:05:59,125 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 12:05:59,126 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 12:05:59,127 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-12-13 12:05:59,220 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 12:05:59,222 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 12:05:59,351 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 12:05:59,374 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 12:05:59,374 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2022-12-13 12:05:59,377 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:05:59 BoogieIcfgContainer
[2022-12-13 12:05:59,377 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 12:05:59,380 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 12:05:59,380 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 12:05:59,382 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 12:05:59,383 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:05:58" (1/3) ...
[2022-12-13 12:05:59,383 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4706e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:05:59, skipping insertion in model container
[2022-12-13 12:05:59,384 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:05:59" (2/3) ...
[2022-12-13 12:05:59,384 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4706e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:05:59, skipping insertion in model container
[2022-12-13 12:05:59,384 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:05:59" (3/3) ...
[2022-12-13 12:05:59,386 INFO  L112   eAbstractionObserver]: Analyzing ICFG floating_read-5.i
[2022-12-13 12:05:59,398 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-12-13 12:05:59,405 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 12:05:59,405 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2022-12-13 12:05:59,405 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-12-13 12:05:59,445 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-12-13 12:05:59,476 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 68 places, 69 transitions, 146 flow
[2022-12-13 12:05:59,517 INFO  L130       PetriNetUnfolder]: 7/99 cut-off events.
[2022-12-13 12:05:59,518 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-12-13 12:05:59,521 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 105 conditions, 99 events. 7/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 159 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. 
[2022-12-13 12:05:59,521 INFO  L82        GeneralOperation]: Start removeDead. Operand has 68 places, 69 transitions, 146 flow
[2022-12-13 12:05:59,524 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 68 places, 69 transitions, 146 flow
[2022-12-13 12:05:59,527 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2022-12-13 12:05:59,536 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 69 transitions, 146 flow
[2022-12-13 12:05:59,538 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 69 transitions, 146 flow
[2022-12-13 12:05:59,538 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 68 places, 69 transitions, 146 flow
[2022-12-13 12:05:59,557 INFO  L130       PetriNetUnfolder]: 7/99 cut-off events.
[2022-12-13 12:05:59,557 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-12-13 12:05:59,557 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 105 conditions, 99 events. 7/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 159 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. 
[2022-12-13 12:05:59,558 INFO  L119        LiptonReduction]: Number of co-enabled transitions 432
[2022-12-13 12:06:00,875 INFO  L134        LiptonReduction]: Checked pairs total: 599
[2022-12-13 12:06:00,876 INFO  L136        LiptonReduction]: Total number of compositions: 64
[2022-12-13 12:06:00,889 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 12:06:00,895 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;@78df3b96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 12:06:00,895 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-12-13 12:06:00,896 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2022-12-13 12:06:00,896 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-13 12:06:00,896 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:00,897 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2022-12-13 12:06:00,897 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] ===
[2022-12-13 12:06:00,901 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:00,901 INFO  L85        PathProgramCache]: Analyzing trace with hash 281, now seen corresponding path program 1 times
[2022-12-13 12:06:00,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:00,907 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218954443]
[2022-12-13 12:06:00,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:00,908 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:00,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:00,980 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:00,981 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:00,981 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218954443]
[2022-12-13 12:06:00,981 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218954443] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:00,982 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:00,982 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-12-13 12:06:00,983 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174621931]
[2022-12-13 12:06:00,983 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:00,989 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 12:06:00,989 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:01,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 12:06:01,005 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 12:06:01,006 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 59 out of 133
[2022-12-13 12:06:01,007 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 18 transitions, 44 flow. Second operand  has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,007 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:01,007 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 133
[2022-12-13 12:06:01,008 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:01,036 INFO  L130       PetriNetUnfolder]: 7/36 cut-off events.
[2022-12-13 12:06:01,036 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-12-13 12:06:01,036 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 72 conditions, 36 events. 7/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 6 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 42. Up to 29 conditions per place. 
[2022-12-13 12:06:01,037 INFO  L137   encePairwiseOnDemand]: 129/133 looper letters, 6 selfloop transitions, 0 changer transitions 5/14 dead transitions.
[2022-12-13 12:06:01,037 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 14 transitions, 58 flow
[2022-12-13 12:06:01,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 12:06:01,040 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-12-13 12:06:01,045 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 133 transitions.
[2022-12-13 12:06:01,047 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5
[2022-12-13 12:06:01,047 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 133 transitions.
[2022-12-13 12:06:01,048 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 133 transitions.
[2022-12-13 12:06:01,049 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:01,050 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 133 transitions.
[2022-12-13 12:06:01,053 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,057 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,057 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,059 INFO  L175             Difference]: Start difference. First operand has 19 places, 18 transitions, 44 flow. Second operand 2 states and 133 transitions.
[2022-12-13 12:06:01,060 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 14 transitions, 58 flow
[2022-12-13 12:06:01,062 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:01,063 INFO  L231             Difference]: Finished difference. Result has 17 places, 9 transitions, 23 flow
[2022-12-13 12:06:01,065 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=23, PETRI_PLACES=17, PETRI_TRANSITIONS=9}
[2022-12-13 12:06:01,068 INFO  L288   CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places.
[2022-12-13 12:06:01,068 INFO  L495      AbstractCegarLoop]: Abstraction has has 17 places, 9 transitions, 23 flow
[2022-12-13 12:06:01,068 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,068 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:01,068 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2022-12-13 12:06:01,069 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 12:06:01,069 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] ===
[2022-12-13 12:06:01,070 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:01,070 INFO  L85        PathProgramCache]: Analyzing trace with hash 277862, now seen corresponding path program 1 times
[2022-12-13 12:06:01,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:01,070 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426465112]
[2022-12-13 12:06:01,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:01,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:01,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:01,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:01,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:01,156 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426465112]
[2022-12-13 12:06:01,156 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426465112] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:01,156 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:01,156 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 12:06:01,156 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375512767]
[2022-12-13 12:06:01,156 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:01,157 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:01,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:01,158 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:01,158 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:06:01,168 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 55 out of 133
[2022-12-13 12:06:01,168 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 9 transitions, 23 flow. Second operand  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,169 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:01,169 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 133
[2022-12-13 12:06:01,169 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:01,181 INFO  L130       PetriNetUnfolder]: 3/19 cut-off events.
[2022-12-13 12:06:01,182 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-13 12:06:01,182 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 40 conditions, 19 events. 3/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 35 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 36. Up to 10 conditions per place. 
[2022-12-13 12:06:01,182 INFO  L137   encePairwiseOnDemand]: 130/133 looper letters, 6 selfloop transitions, 2 changer transitions 0/11 dead transitions.
[2022-12-13 12:06:01,182 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 11 transitions, 43 flow
[2022-12-13 12:06:01,183 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:01,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:01,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions.
[2022-12-13 12:06:01,185 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.43609022556390975
[2022-12-13 12:06:01,185 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 174 transitions.
[2022-12-13 12:06:01,185 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 174 transitions.
[2022-12-13 12:06:01,185 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:01,185 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 174 transitions.
[2022-12-13 12:06:01,186 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,188 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,188 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,188 INFO  L175             Difference]: Start difference. First operand has 17 places, 9 transitions, 23 flow. Second operand 3 states and 174 transitions.
[2022-12-13 12:06:01,188 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 11 transitions, 43 flow
[2022-12-13 12:06:01,189 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 11 transitions, 43 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:01,189 INFO  L231             Difference]: Finished difference. Result has 16 places, 9 transitions, 31 flow
[2022-12-13 12:06:01,189 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=31, PETRI_PLACES=16, PETRI_TRANSITIONS=9}
[2022-12-13 12:06:01,190 INFO  L288   CegarLoopForPetriNet]: 19 programPoint places, -3 predicate places.
[2022-12-13 12:06:01,190 INFO  L495      AbstractCegarLoop]: Abstraction has has 16 places, 9 transitions, 31 flow
[2022-12-13 12:06:01,190 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,190 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:01,190 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:01,191 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 12:06:01,191 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] ===
[2022-12-13 12:06:01,191 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:01,191 INFO  L85        PathProgramCache]: Analyzing trace with hash -290010982, now seen corresponding path program 1 times
[2022-12-13 12:06:01,191 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:01,191 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8123045]
[2022-12-13 12:06:01,192 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:01,192 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:01,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:01,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:01,250 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:01,250 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8123045]
[2022-12-13 12:06:01,250 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8123045] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:01,250 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154740930]
[2022-12-13 12:06:01,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:01,250 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:01,251 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:01,251 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:01,253 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-12-13 12:06:01,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:01,296 INFO  L263         TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:01,299 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:01,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 12:06:01,308 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:06:01,308 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154740930] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:01,308 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:06:01,308 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5
[2022-12-13 12:06:01,309 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415006736]
[2022-12-13 12:06:01,309 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:01,309 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:01,309 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:01,309 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:01,309 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-13 12:06:01,312 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 56 out of 133
[2022-12-13 12:06:01,312 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 9 transitions, 31 flow. Second operand  has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,312 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:01,312 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 133
[2022-12-13 12:06:01,312 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:01,325 INFO  L130       PetriNetUnfolder]: 3/19 cut-off events.
[2022-12-13 12:06:01,325 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-12-13 12:06:01,325 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 53 conditions, 19 events. 3/19 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 47. Up to 14 conditions per place. 
[2022-12-13 12:06:01,325 INFO  L137   encePairwiseOnDemand]: 129/133 looper letters, 6 selfloop transitions, 2 changer transitions 2/11 dead transitions.
[2022-12-13 12:06:01,325 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 11 transitions, 55 flow
[2022-12-13 12:06:01,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:01,325 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:01,326 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions.
[2022-12-13 12:06:01,326 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.44862155388471175
[2022-12-13 12:06:01,326 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 179 transitions.
[2022-12-13 12:06:01,326 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 179 transitions.
[2022-12-13 12:06:01,327 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:01,327 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 179 transitions.
[2022-12-13 12:06:01,327 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,328 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,328 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,328 INFO  L175             Difference]: Start difference. First operand has 16 places, 9 transitions, 31 flow. Second operand 3 states and 179 transitions.
[2022-12-13 12:06:01,328 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 11 transitions, 55 flow
[2022-12-13 12:06:01,329 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 11 transitions, 51 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-13 12:06:01,329 INFO  L231             Difference]: Finished difference. Result has 17 places, 9 transitions, 37 flow
[2022-12-13 12:06:01,329 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=17, PETRI_TRANSITIONS=9}
[2022-12-13 12:06:01,329 INFO  L288   CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places.
[2022-12-13 12:06:01,329 INFO  L495      AbstractCegarLoop]: Abstraction has has 17 places, 9 transitions, 37 flow
[2022-12-13 12:06:01,330 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:01,330 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:01,330 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2022-12-13 12:06:01,337 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-12-13 12:06:01,530 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:01,531 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] ===
[2022-12-13 12:06:01,532 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:01,532 INFO  L85        PathProgramCache]: Analyzing trace with hash -290010248, now seen corresponding path program 1 times
[2022-12-13 12:06:01,532 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:01,532 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802608256]
[2022-12-13 12:06:01,532 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:01,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:01,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:01,563 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-12-13 12:06:01,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:01,587 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-12-13 12:06:01,587 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2022-12-13 12:06:01,587 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining)
[2022-12-13 12:06:01,589 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining)
[2022-12-13 12:06:01,589 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining)
[2022-12-13 12:06:01,589 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining)
[2022-12-13 12:06:01,589 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining)
[2022-12-13 12:06:01,589 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining)
[2022-12-13 12:06:01,590 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-13 12:06:01,590 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-12-13 12:06:01,591 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-12-13 12:06:01,591 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2022-12-13 12:06:01,600 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-12-13 12:06:01,602 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 172 flow
[2022-12-13 12:06:01,619 INFO  L130       PetriNetUnfolder]: 13/168 cut-off events.
[2022-12-13 12:06:01,619 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-12-13 12:06:01,619 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 13/168 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 337 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 101. Up to 8 conditions per place. 
[2022-12-13 12:06:01,619 INFO  L82        GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 172 flow
[2022-12-13 12:06:01,620 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 172 flow
[2022-12-13 12:06:01,620 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2022-12-13 12:06:01,620 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 77 transitions, 172 flow
[2022-12-13 12:06:01,620 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 77 transitions, 172 flow
[2022-12-13 12:06:01,620 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 172 flow
[2022-12-13 12:06:01,635 INFO  L130       PetriNetUnfolder]: 13/168 cut-off events.
[2022-12-13 12:06:01,635 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-12-13 12:06:01,635 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 13/168 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 337 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 101. Up to 8 conditions per place. 
[2022-12-13 12:06:01,636 INFO  L119        LiptonReduction]: Number of co-enabled transitions 1068
[2022-12-13 12:06:02,980 INFO  L134        LiptonReduction]: Checked pairs total: 1695
[2022-12-13 12:06:02,980 INFO  L136        LiptonReduction]: Total number of compositions: 68
[2022-12-13 12:06:02,982 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 12:06:02,983 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;@78df3b96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 12:06:02,983 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2022-12-13 12:06:02,984 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2022-12-13 12:06:02,984 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-13 12:06:02,984 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:02,984 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2022-12-13 12:06:02,984 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 4 more)] ===
[2022-12-13 12:06:02,985 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:02,985 INFO  L85        PathProgramCache]: Analyzing trace with hash 434, now seen corresponding path program 1 times
[2022-12-13 12:06:02,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:02,985 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380995583]
[2022-12-13 12:06:02,985 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:02,985 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:02,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:02,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:02,991 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:02,991 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380995583]
[2022-12-13 12:06:02,991 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380995583] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:02,991 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:02,991 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-12-13 12:06:02,991 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726098339]
[2022-12-13 12:06:02,991 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:02,991 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 12:06:02,991 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:02,992 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 12:06:02,992 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 12:06:02,992 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 63 out of 145
[2022-12-13 12:06:02,992 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 66 flow. Second operand  has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:02,992 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:02,992 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 145
[2022-12-13 12:06:02,992 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:03,022 INFO  L130       PetriNetUnfolder]: 41/118 cut-off events.
[2022-12-13 12:06:03,022 INFO  L131       PetriNetUnfolder]: For 14/14 co-relation queries the response was YES.
[2022-12-13 12:06:03,023 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 240 conditions, 118 events. 41/118 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 341 event pairs, 37 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 77. Up to 101 conditions per place. 
[2022-12-13 12:06:03,023 INFO  L137   encePairwiseOnDemand]: 140/145 looper letters, 8 selfloop transitions, 0 changer transitions 7/19 dead transitions.
[2022-12-13 12:06:03,023 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 84 flow
[2022-12-13 12:06:03,024 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 12:06:03,024 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-12-13 12:06:03,024 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 145 transitions.
[2022-12-13 12:06:03,024 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5
[2022-12-13 12:06:03,025 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 145 transitions.
[2022-12-13 12:06:03,025 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 145 transitions.
[2022-12-13 12:06:03,025 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:03,025 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 145 transitions.
[2022-12-13 12:06:03,025 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,026 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,026 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,026 INFO  L175             Difference]: Start difference. First operand has 26 places, 24 transitions, 66 flow. Second operand 2 states and 145 transitions.
[2022-12-13 12:06:03,026 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 84 flow
[2022-12-13 12:06:03,027 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 84 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:03,027 INFO  L231             Difference]: Finished difference. Result has 23 places, 12 transitions, 36 flow
[2022-12-13 12:06:03,027 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=36, PETRI_PLACES=23, PETRI_TRANSITIONS=12}
[2022-12-13 12:06:03,027 INFO  L288   CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places.
[2022-12-13 12:06:03,027 INFO  L495      AbstractCegarLoop]: Abstraction has has 23 places, 12 transitions, 36 flow
[2022-12-13 12:06:03,028 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,028 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:03,028 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2022-12-13 12:06:03,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-13 12:06:03,028 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 4 more)] ===
[2022-12-13 12:06:03,028 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:03,028 INFO  L85        PathProgramCache]: Analyzing trace with hash 429655, now seen corresponding path program 1 times
[2022-12-13 12:06:03,028 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:03,028 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481045597]
[2022-12-13 12:06:03,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:03,029 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:03,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:03,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:03,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:03,049 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481045597]
[2022-12-13 12:06:03,049 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481045597] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:03,050 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:03,050 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 12:06:03,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589391714]
[2022-12-13 12:06:03,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:03,050 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:03,050 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:03,051 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:03,051 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:06:03,060 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 59 out of 145
[2022-12-13 12:06:03,061 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 12 transitions, 36 flow. Second operand  has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,061 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:03,061 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 145
[2022-12-13 12:06:03,061 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:03,080 INFO  L130       PetriNetUnfolder]: 17/56 cut-off events.
[2022-12-13 12:06:03,080 INFO  L131       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2022-12-13 12:06:03,080 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 116 conditions, 56 events. 17/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 150 event pairs, 6 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 111. Up to 40 conditions per place. 
[2022-12-13 12:06:03,080 INFO  L137   encePairwiseOnDemand]: 142/145 looper letters, 9 selfloop transitions, 2 changer transitions 0/15 dead transitions.
[2022-12-13 12:06:03,081 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 64 flow
[2022-12-13 12:06:03,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:03,081 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:03,081 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions.
[2022-12-13 12:06:03,082 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.43448275862068964
[2022-12-13 12:06:03,082 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 189 transitions.
[2022-12-13 12:06:03,082 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 189 transitions.
[2022-12-13 12:06:03,082 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:03,082 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 189 transitions.
[2022-12-13 12:06:03,082 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 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)
[2022-12-13 12:06:03,083 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,083 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,084 INFO  L175             Difference]: Start difference. First operand has 23 places, 12 transitions, 36 flow. Second operand 3 states and 189 transitions.
[2022-12-13 12:06:03,084 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 64 flow
[2022-12-13 12:06:03,084 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 62 flow, removed 1 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:03,084 INFO  L231             Difference]: Finished difference. Result has 21 places, 13 transitions, 46 flow
[2022-12-13 12:06:03,084 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=21, PETRI_TRANSITIONS=13}
[2022-12-13 12:06:03,085 INFO  L288   CegarLoopForPetriNet]: 26 programPoint places, -5 predicate places.
[2022-12-13 12:06:03,085 INFO  L495      AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 46 flow
[2022-12-13 12:06:03,085 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,085 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:03,085 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:03,085 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-13 12:06:03,086 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 4 more)] ===
[2022-12-13 12:06:03,086 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:03,086 INFO  L85        PathProgramCache]: Analyzing trace with hash -1856535042, now seen corresponding path program 1 times
[2022-12-13 12:06:03,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:03,086 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402368258]
[2022-12-13 12:06:03,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:03,086 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:03,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:03,116 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:03,117 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:03,117 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402368258]
[2022-12-13 12:06:03,117 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402368258] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:03,117 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468150698]
[2022-12-13 12:06:03,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:03,117 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:03,117 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:03,118 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:03,119 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-12-13 12:06:03,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:03,162 INFO  L263         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:03,162 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:03,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 12:06:03,167 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:06:03,168 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468150698] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:03,168 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:06:03,168 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5
[2022-12-13 12:06:03,168 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740599437]
[2022-12-13 12:06:03,168 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:03,168 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:03,168 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:03,169 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:03,169 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-13 12:06:03,173 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 60 out of 145
[2022-12-13 12:06:03,173 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 46 flow. Second operand  has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,173 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:03,173 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 145
[2022-12-13 12:06:03,173 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:03,197 INFO  L130       PetriNetUnfolder]: 24/73 cut-off events.
[2022-12-13 12:06:03,197 INFO  L131       PetriNetUnfolder]: For 13/13 co-relation queries the response was YES.
[2022-12-13 12:06:03,197 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 173 conditions, 73 events. 24/73 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 223 event pairs, 15 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 166. Up to 53 conditions per place. 
[2022-12-13 12:06:03,198 INFO  L137   encePairwiseOnDemand]: 140/145 looper letters, 9 selfloop transitions, 3 changer transitions 2/16 dead transitions.
[2022-12-13 12:06:03,198 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 80 flow
[2022-12-13 12:06:03,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:03,198 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:03,199 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions.
[2022-12-13 12:06:03,199 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4459770114942529
[2022-12-13 12:06:03,199 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 194 transitions.
[2022-12-13 12:06:03,199 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 194 transitions.
[2022-12-13 12:06:03,200 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:03,200 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 194 transitions.
[2022-12-13 12:06:03,200 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,202 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,202 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,202 INFO  L175             Difference]: Start difference. First operand has 21 places, 13 transitions, 46 flow. Second operand 3 states and 194 transitions.
[2022-12-13 12:06:03,202 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 80 flow
[2022-12-13 12:06:03,203 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 78 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:03,203 INFO  L231             Difference]: Finished difference. Result has 23 places, 14 transitions, 61 flow
[2022-12-13 12:06:03,203 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=14}
[2022-12-13 12:06:03,204 INFO  L288   CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places.
[2022-12-13 12:06:03,204 INFO  L495      AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 61 flow
[2022-12-13 12:06:03,204 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,204 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:03,205 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:03,209 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-12-13 12:06:03,405 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:03,406 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 4 more)] ===
[2022-12-13 12:06:03,407 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:03,408 INFO  L85        PathProgramCache]: Analyzing trace with hash -1718007274, now seen corresponding path program 1 times
[2022-12-13 12:06:03,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:03,409 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137724891]
[2022-12-13 12:06:03,409 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:03,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:03,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:03,486 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:03,486 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:03,486 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137724891]
[2022-12-13 12:06:03,486 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137724891] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:03,486 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623478102]
[2022-12-13 12:06:03,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:03,487 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:03,487 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:03,488 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:03,488 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-12-13 12:06:03,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:03,528 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:03,528 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:03,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:03,556 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 12:06:03,576 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:03,576 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623478102] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 12:06:03,576 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 12:06:03,576 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2022-12-13 12:06:03,577 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689736752]
[2022-12-13 12:06:03,577 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 12:06:03,577 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 12:06:03,577 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:03,578 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 12:06:03,578 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-12-13 12:06:03,594 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 58 out of 145
[2022-12-13 12:06:03,595 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 61 flow. Second operand  has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,595 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:03,595 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 145
[2022-12-13 12:06:03,595 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:03,620 INFO  L130       PetriNetUnfolder]: 12/39 cut-off events.
[2022-12-13 12:06:03,620 INFO  L131       PetriNetUnfolder]: For 25/25 co-relation queries the response was YES.
[2022-12-13 12:06:03,621 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 113 conditions, 39 events. 12/39 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 105. Up to 16 conditions per place. 
[2022-12-13 12:06:03,621 INFO  L137   encePairwiseOnDemand]: 142/145 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions.
[2022-12-13 12:06:03,621 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 15 transitions, 82 flow
[2022-12-13 12:06:03,621 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-12-13 12:06:03,621 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-12-13 12:06:03,622 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 305 transitions.
[2022-12-13 12:06:03,622 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4206896551724138
[2022-12-13 12:06:03,622 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 305 transitions.
[2022-12-13 12:06:03,622 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 305 transitions.
[2022-12-13 12:06:03,623 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:03,623 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 305 transitions.
[2022-12-13 12:06:03,623 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 61.0) internal successors, (305), 5 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)
[2022-12-13 12:06:03,624 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,624 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,625 INFO  L175             Difference]: Start difference. First operand has 23 places, 14 transitions, 61 flow. Second operand 5 states and 305 transitions.
[2022-12-13 12:06:03,625 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 15 transitions, 82 flow
[2022-12-13 12:06:03,625 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 15 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:03,625 INFO  L231             Difference]: Finished difference. Result has 23 places, 10 transitions, 46 flow
[2022-12-13 12:06:03,625 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=10}
[2022-12-13 12:06:03,626 INFO  L288   CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places.
[2022-12-13 12:06:03,626 INFO  L495      AbstractCegarLoop]: Abstraction has has 23 places, 10 transitions, 46 flow
[2022-12-13 12:06:03,626 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:03,626 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:03,626 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-12-13 12:06:03,631 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-12-13 12:06:03,827 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2022-12-13 12:06:03,829 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 4 more)] ===
[2022-12-13 12:06:03,830 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:03,830 INFO  L85        PathProgramCache]: Analyzing trace with hash -1667994393, now seen corresponding path program 1 times
[2022-12-13 12:06:03,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:03,831 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101046764]
[2022-12-13 12:06:03,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:03,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:03,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:03,865 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-12-13 12:06:03,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:03,894 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-12-13 12:06:03,895 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2022-12-13 12:06:03,896 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining)
[2022-12-13 12:06:03,896 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining)
[2022-12-13 12:06:03,897 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining)
[2022-12-13 12:06:03,897 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining)
[2022-12-13 12:06:03,898 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining)
[2022-12-13 12:06:03,898 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining)
[2022-12-13 12:06:03,899 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining)
[2022-12-13 12:06:03,899 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-12-13 12:06:03,900 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-12-13 12:06:03,902 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-12-13 12:06:03,902 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2022-12-13 12:06:03,942 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-12-13 12:06:03,946 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 86 places, 85 transitions, 200 flow
[2022-12-13 12:06:03,978 INFO  L130       PetriNetUnfolder]: 24/282 cut-off events.
[2022-12-13 12:06:03,978 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2022-12-13 12:06:03,979 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 310 conditions, 282 events. 24/282 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 736 event pairs, 1 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 176. Up to 16 conditions per place. 
[2022-12-13 12:06:03,979 INFO  L82        GeneralOperation]: Start removeDead. Operand has 86 places, 85 transitions, 200 flow
[2022-12-13 12:06:03,980 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 86 places, 85 transitions, 200 flow
[2022-12-13 12:06:03,980 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2022-12-13 12:06:03,980 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 85 transitions, 200 flow
[2022-12-13 12:06:03,981 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 85 transitions, 200 flow
[2022-12-13 12:06:03,981 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 86 places, 85 transitions, 200 flow
[2022-12-13 12:06:03,999 INFO  L130       PetriNetUnfolder]: 24/282 cut-off events.
[2022-12-13 12:06:03,999 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2022-12-13 12:06:04,000 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 310 conditions, 282 events. 24/282 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 736 event pairs, 1 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 176. Up to 16 conditions per place. 
[2022-12-13 12:06:04,002 INFO  L119        LiptonReduction]: Number of co-enabled transitions 1764
[2022-12-13 12:06:05,126 INFO  L134        LiptonReduction]: Checked pairs total: 2779
[2022-12-13 12:06:05,126 INFO  L136        LiptonReduction]: Total number of compositions: 74
[2022-12-13 12:06:05,127 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 12:06:05,128 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;@78df3b96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 12:06:05,128 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2022-12-13 12:06:05,128 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2022-12-13 12:06:05,128 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-13 12:06:05,128 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:05,129 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2022-12-13 12:06:05,129 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2022-12-13 12:06:05,129 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:05,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 601, now seen corresponding path program 1 times
[2022-12-13 12:06:05,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:05,129 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504254712]
[2022-12-13 12:06:05,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:05,129 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:05,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:05,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:05,134 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:05,134 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504254712]
[2022-12-13 12:06:05,134 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504254712] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:05,134 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:05,134 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-12-13 12:06:05,134 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033240443]
[2022-12-13 12:06:05,134 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:05,135 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 12:06:05,135 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:05,135 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 12:06:05,135 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 12:06:05,135 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 67 out of 159
[2022-12-13 12:06:05,136 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 86 flow. Second operand  has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,136 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:05,136 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 159
[2022-12-13 12:06:05,136 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:05,178 INFO  L130       PetriNetUnfolder]: 172/375 cut-off events.
[2022-12-13 12:06:05,178 INFO  L131       PetriNetUnfolder]: For 73/73 co-relation queries the response was YES.
[2022-12-13 12:06:05,179 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 774 conditions, 375 events. 172/375 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1438 event pairs, 159 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 242. Up to 332 conditions per place. 
[2022-12-13 12:06:05,180 INFO  L137   encePairwiseOnDemand]: 153/159 looper letters, 10 selfloop transitions, 0 changer transitions 8/22 dead transitions.
[2022-12-13 12:06:05,180 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 108 flow
[2022-12-13 12:06:05,180 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 12:06:05,180 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-12-13 12:06:05,180 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 157 transitions.
[2022-12-13 12:06:05,181 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4937106918238994
[2022-12-13 12:06:05,181 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 157 transitions.
[2022-12-13 12:06:05,181 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 157 transitions.
[2022-12-13 12:06:05,181 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:05,181 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 157 transitions.
[2022-12-13 12:06:05,181 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,182 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,182 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,182 INFO  L175             Difference]: Start difference. First operand has 31 places, 28 transitions, 86 flow. Second operand 2 states and 157 transitions.
[2022-12-13 12:06:05,182 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 108 flow
[2022-12-13 12:06:05,182 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 108 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:05,183 INFO  L231             Difference]: Finished difference. Result has 27 places, 14 transitions, 49 flow
[2022-12-13 12:06:05,183 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=49, PETRI_PLACES=27, PETRI_TRANSITIONS=14}
[2022-12-13 12:06:05,183 INFO  L288   CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places.
[2022-12-13 12:06:05,183 INFO  L495      AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 49 flow
[2022-12-13 12:06:05,183 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,184 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:05,184 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2022-12-13 12:06:05,184 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-12-13 12:06:05,184 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2022-12-13 12:06:05,184 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:05,184 INFO  L85        PathProgramCache]: Analyzing trace with hash 595441, now seen corresponding path program 1 times
[2022-12-13 12:06:05,184 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:05,184 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222141521]
[2022-12-13 12:06:05,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:05,184 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:05,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:05,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:05,198 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:05,198 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222141521]
[2022-12-13 12:06:05,198 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222141521] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:05,198 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:05,198 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 12:06:05,198 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230043529]
[2022-12-13 12:06:05,198 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:05,198 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:05,199 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:05,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:05,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:06:05,207 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 63 out of 159
[2022-12-13 12:06:05,208 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 49 flow. Second operand  has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,208 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:05,208 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 159
[2022-12-13 12:06:05,208 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:05,230 INFO  L130       PetriNetUnfolder]: 61/146 cut-off events.
[2022-12-13 12:06:05,230 INFO  L131       PetriNetUnfolder]: For 32/32 co-relation queries the response was YES.
[2022-12-13 12:06:05,230 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 307 conditions, 146 events. 61/146 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 489 event pairs, 34 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 301. Up to 116 conditions per place. 
[2022-12-13 12:06:05,231 INFO  L137   encePairwiseOnDemand]: 156/159 looper letters, 11 selfloop transitions, 2 changer transitions 0/17 dead transitions.
[2022-12-13 12:06:05,231 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 81 flow
[2022-12-13 12:06:05,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:05,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:05,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions.
[2022-12-13 12:06:05,232 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.42557651991614254
[2022-12-13 12:06:05,232 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 203 transitions.
[2022-12-13 12:06:05,232 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions.
[2022-12-13 12:06:05,232 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:05,232 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions.
[2022-12-13 12:06:05,232 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,233 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,233 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,233 INFO  L175             Difference]: Start difference. First operand has 27 places, 14 transitions, 49 flow. Second operand 3 states and 203 transitions.
[2022-12-13 12:06:05,233 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 81 flow
[2022-12-13 12:06:05,233 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 75 flow, removed 3 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:05,234 INFO  L231             Difference]: Finished difference. Result has 25 places, 15 transitions, 55 flow
[2022-12-13 12:06:05,234 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=25, PETRI_TRANSITIONS=15}
[2022-12-13 12:06:05,234 INFO  L288   CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places.
[2022-12-13 12:06:05,234 INFO  L495      AbstractCegarLoop]: Abstraction has has 25 places, 15 transitions, 55 flow
[2022-12-13 12:06:05,235 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,235 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:05,235 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:05,235 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-12-13 12:06:05,235 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2022-12-13 12:06:05,235 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:05,235 INFO  L85        PathProgramCache]: Analyzing trace with hash 1108502906, now seen corresponding path program 1 times
[2022-12-13 12:06:05,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:05,235 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124463472]
[2022-12-13 12:06:05,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:05,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:05,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:05,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:05,257 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:05,257 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124463472]
[2022-12-13 12:06:05,257 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124463472] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:05,257 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791071854]
[2022-12-13 12:06:05,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:05,257 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:05,257 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:05,258 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:05,259 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-12-13 12:06:05,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:05,307 INFO  L263         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:05,308 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:05,313 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 12:06:05,313 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:06:05,313 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [791071854] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:05,313 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:06:05,313 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5
[2022-12-13 12:06:05,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584008758]
[2022-12-13 12:06:05,314 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:05,314 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:05,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:05,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:05,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-13 12:06:05,317 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 64 out of 159
[2022-12-13 12:06:05,317 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 55 flow. Second operand  has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,318 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:05,318 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 159
[2022-12-13 12:06:05,318 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:05,353 INFO  L130       PetriNetUnfolder]: 100/216 cut-off events.
[2022-12-13 12:06:05,354 INFO  L131       PetriNetUnfolder]: For 33/33 co-relation queries the response was YES.
[2022-12-13 12:06:05,354 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 484 conditions, 216 events. 100/216 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 789 event pairs, 62 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 476. Up to 167 conditions per place. 
[2022-12-13 12:06:05,355 INFO  L137   encePairwiseOnDemand]: 153/159 looper letters, 11 selfloop transitions, 4 changer transitions 2/19 dead transitions.
[2022-12-13 12:06:05,355 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 97 flow
[2022-12-13 12:06:05,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:05,355 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:05,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions.
[2022-12-13 12:06:05,356 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4381551362683438
[2022-12-13 12:06:05,356 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 209 transitions.
[2022-12-13 12:06:05,356 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions.
[2022-12-13 12:06:05,356 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:05,356 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions.
[2022-12-13 12:06:05,357 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)
[2022-12-13 12:06:05,358 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,358 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,358 INFO  L175             Difference]: Start difference. First operand has 25 places, 15 transitions, 55 flow. Second operand 3 states and 209 transitions.
[2022-12-13 12:06:05,358 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 97 flow
[2022-12-13 12:06:05,359 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:05,359 INFO  L231             Difference]: Finished difference. Result has 27 places, 17 transitions, 77 flow
[2022-12-13 12:06:05,359 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=27, PETRI_TRANSITIONS=17}
[2022-12-13 12:06:05,360 INFO  L288   CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places.
[2022-12-13 12:06:05,360 INFO  L495      AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 77 flow
[2022-12-13 12:06:05,360 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,360 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:05,360 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:05,364 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-12-13 12:06:05,561 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2022-12-13 12:06:05,561 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2022-12-13 12:06:05,562 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:05,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 3856330, now seen corresponding path program 1 times
[2022-12-13 12:06:05,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:05,562 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188450883]
[2022-12-13 12:06:05,562 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:05,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:05,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:05,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:05,642 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:05,642 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188450883]
[2022-12-13 12:06:05,642 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188450883] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:05,643 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253675306]
[2022-12-13 12:06:05,643 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:05,643 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:05,644 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:05,646 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:05,648 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-12-13 12:06:05,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:05,723 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:05,724 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:05,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:05,734 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 12:06:05,748 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:05,748 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253675306] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 12:06:05,748 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 12:06:05,748 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2022-12-13 12:06:05,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853225726]
[2022-12-13 12:06:05,748 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 12:06:05,749 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 12:06:05,749 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:05,749 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 12:06:05,749 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-12-13 12:06:05,763 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 62 out of 159
[2022-12-13 12:06:05,763 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 77 flow. Second operand  has 7 states, 7 states have (on average 64.14285714285714) internal successors, (449), 7 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,764 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:05,764 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 159
[2022-12-13 12:06:05,764 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:05,797 INFO  L130       PetriNetUnfolder]: 44/103 cut-off events.
[2022-12-13 12:06:05,797 INFO  L131       PetriNetUnfolder]: For 73/73 co-relation queries the response was YES.
[2022-12-13 12:06:05,797 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 294 conditions, 103 events. 44/103 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 247 event pairs, 0 based on Foata normal form. 14/117 useless extension candidates. Maximal degree in co-relation 285. Up to 52 conditions per place. 
[2022-12-13 12:06:05,798 INFO  L137   encePairwiseOnDemand]: 156/159 looper letters, 16 selfloop transitions, 4 changer transitions 0/22 dead transitions.
[2022-12-13 12:06:05,798 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 125 flow
[2022-12-13 12:06:05,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-12-13 12:06:05,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-12-13 12:06:05,799 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 395 transitions.
[2022-12-13 12:06:05,799 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4140461215932914
[2022-12-13 12:06:05,799 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 395 transitions.
[2022-12-13 12:06:05,799 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 395 transitions.
[2022-12-13 12:06:05,799 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:05,800 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 395 transitions.
[2022-12-13 12:06:05,800 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,801 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,801 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,801 INFO  L175             Difference]: Start difference. First operand has 27 places, 17 transitions, 77 flow. Second operand 6 states and 395 transitions.
[2022-12-13 12:06:05,801 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 125 flow
[2022-12-13 12:06:05,802 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 125 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:05,802 INFO  L231             Difference]: Finished difference. Result has 28 places, 13 transitions, 63 flow
[2022-12-13 12:06:05,802 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=63, PETRI_PLACES=28, PETRI_TRANSITIONS=13}
[2022-12-13 12:06:05,802 INFO  L288   CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places.
[2022-12-13 12:06:05,803 INFO  L495      AbstractCegarLoop]: Abstraction has has 28 places, 13 transitions, 63 flow
[2022-12-13 12:06:05,803 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 64.14285714285714) internal successors, (449), 7 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:05,803 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:05,803 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2022-12-13 12:06:05,808 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-12-13 12:06:06,003 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2022-12-13 12:06:06,004 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2022-12-13 12:06:06,004 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:06,004 INFO  L85        PathProgramCache]: Analyzing trace with hash 919285008, now seen corresponding path program 1 times
[2022-12-13 12:06:06,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:06,005 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064083538]
[2022-12-13 12:06:06,005 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:06,005 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:06,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:06,017 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-12-13 12:06:06,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:06,029 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-12-13 12:06:06,029 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining)
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining)
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining)
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining)
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining)
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining)
[2022-12-13 12:06:06,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining)
[2022-12-13 12:06:06,031 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining)
[2022-12-13 12:06:06,031 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-12-13 12:06:06,031 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-12-13 12:06:06,032 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-12-13 12:06:06,032 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2022-12-13 12:06:06,057 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2022-12-13 12:06:06,059 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 95 places, 93 transitions, 230 flow
[2022-12-13 12:06:06,141 INFO  L130       PetriNetUnfolder]: 47/488 cut-off events.
[2022-12-13 12:06:06,141 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2022-12-13 12:06:06,142 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 543 conditions, 488 events. 47/488 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1682 event pairs, 6 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 302. Up to 32 conditions per place. 
[2022-12-13 12:06:06,142 INFO  L82        GeneralOperation]: Start removeDead. Operand has 95 places, 93 transitions, 230 flow
[2022-12-13 12:06:06,144 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 95 places, 93 transitions, 230 flow
[2022-12-13 12:06:06,144 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2022-12-13 12:06:06,144 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 93 transitions, 230 flow
[2022-12-13 12:06:06,144 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 93 transitions, 230 flow
[2022-12-13 12:06:06,144 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 95 places, 93 transitions, 230 flow
[2022-12-13 12:06:06,193 INFO  L130       PetriNetUnfolder]: 47/488 cut-off events.
[2022-12-13 12:06:06,193 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2022-12-13 12:06:06,194 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 543 conditions, 488 events. 47/488 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1682 event pairs, 6 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 302. Up to 32 conditions per place. 
[2022-12-13 12:06:06,199 INFO  L119        LiptonReduction]: Number of co-enabled transitions 2568
[2022-12-13 12:06:07,436 INFO  L134        LiptonReduction]: Checked pairs total: 4103
[2022-12-13 12:06:07,436 INFO  L136        LiptonReduction]: Total number of compositions: 78
[2022-12-13 12:06:07,437 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 12:06:07,437 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;@78df3b96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 12:06:07,437 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2022-12-13 12:06:07,438 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2022-12-13 12:06:07,438 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-13 12:06:07,438 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:07,438 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2022-12-13 12:06:07,438 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2022-12-13 12:06:07,438 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:07,438 INFO  L85        PathProgramCache]: Analyzing trace with hash 780, now seen corresponding path program 1 times
[2022-12-13 12:06:07,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:07,438 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725835297]
[2022-12-13 12:06:07,438 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:07,438 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:07,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:07,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:07,441 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:07,441 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725835297]
[2022-12-13 12:06:07,441 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725835297] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:07,442 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:07,442 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-12-13 12:06:07,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142612337]
[2022-12-13 12:06:07,442 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:07,442 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 12:06:07,442 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:07,442 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 12:06:07,442 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 12:06:07,442 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 71 out of 171
[2022-12-13 12:06:07,443 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 108 flow. Second operand  has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,443 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:07,443 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 171
[2022-12-13 12:06:07,443 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:07,534 INFO  L130       PetriNetUnfolder]: 639/1178 cut-off events.
[2022-12-13 12:06:07,534 INFO  L131       PetriNetUnfolder]: For 296/296 co-relation queries the response was YES.
[2022-12-13 12:06:07,536 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2458 conditions, 1178 events. 639/1178 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5380 event pairs, 599 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 781. Up to 1071 conditions per place. 
[2022-12-13 12:06:07,537 INFO  L137   encePairwiseOnDemand]: 164/171 looper letters, 12 selfloop transitions, 0 changer transitions 9/25 dead transitions.
[2022-12-13 12:06:07,537 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 134 flow
[2022-12-13 12:06:07,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 12:06:07,538 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-12-13 12:06:07,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 169 transitions.
[2022-12-13 12:06:07,538 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.49415204678362573
[2022-12-13 12:06:07,538 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 169 transitions.
[2022-12-13 12:06:07,538 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 169 transitions.
[2022-12-13 12:06:07,538 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:07,539 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 169 transitions.
[2022-12-13 12:06:07,539 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,540 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,540 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,540 INFO  L175             Difference]: Start difference. First operand has 36 places, 32 transitions, 108 flow. Second operand 2 states and 169 transitions.
[2022-12-13 12:06:07,540 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 134 flow
[2022-12-13 12:06:07,541 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 134 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:07,541 INFO  L231             Difference]: Finished difference. Result has 31 places, 16 transitions, 64 flow
[2022-12-13 12:06:07,541 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=16}
[2022-12-13 12:06:07,542 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, -5 predicate places.
[2022-12-13 12:06:07,542 INFO  L495      AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 64 flow
[2022-12-13 12:06:07,542 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,542 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:07,542 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2022-12-13 12:06:07,542 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-12-13 12:06:07,542 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2022-12-13 12:06:07,542 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:07,542 INFO  L85        PathProgramCache]: Analyzing trace with hash 773052, now seen corresponding path program 1 times
[2022-12-13 12:06:07,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:07,543 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591129874]
[2022-12-13 12:06:07,543 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:07,543 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:07,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:07,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:07,556 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:07,556 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591129874]
[2022-12-13 12:06:07,556 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591129874] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:07,556 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:07,556 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 12:06:07,556 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163082462]
[2022-12-13 12:06:07,556 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:07,556 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:07,556 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:07,557 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:07,557 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:06:07,565 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 67 out of 171
[2022-12-13 12:06:07,565 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 64 flow. Second operand  has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,565 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:07,565 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 171
[2022-12-13 12:06:07,565 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:07,609 INFO  L130       PetriNetUnfolder]: 181/358 cut-off events.
[2022-12-13 12:06:07,610 INFO  L131       PetriNetUnfolder]: For 132/132 co-relation queries the response was YES.
[2022-12-13 12:06:07,610 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 764 conditions, 358 events. 181/358 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1389 event pairs, 122 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 757. Up to 300 conditions per place. 
[2022-12-13 12:06:07,611 INFO  L137   encePairwiseOnDemand]: 168/171 looper letters, 13 selfloop transitions, 2 changer transitions 0/19 dead transitions.
[2022-12-13 12:06:07,612 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 100 flow
[2022-12-13 12:06:07,612 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:07,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:07,613 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions.
[2022-12-13 12:06:07,613 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.42300194931773877
[2022-12-13 12:06:07,613 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 217 transitions.
[2022-12-13 12:06:07,613 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions.
[2022-12-13 12:06:07,613 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:07,613 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions.
[2022-12-13 12:06:07,614 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,615 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,615 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,615 INFO  L175             Difference]: Start difference. First operand has 31 places, 16 transitions, 64 flow. Second operand 3 states and 217 transitions.
[2022-12-13 12:06:07,615 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 100 flow
[2022-12-13 12:06:07,616 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 88 flow, removed 6 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:07,616 INFO  L231             Difference]: Finished difference. Result has 29 places, 17 transitions, 64 flow
[2022-12-13 12:06:07,617 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=29, PETRI_TRANSITIONS=17}
[2022-12-13 12:06:07,617 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, -7 predicate places.
[2022-12-13 12:06:07,617 INFO  L495      AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 64 flow
[2022-12-13 12:06:07,617 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,618 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:07,618 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:07,618 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-12-13 12:06:07,618 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2022-12-13 12:06:07,618 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:07,618 INFO  L85        PathProgramCache]: Analyzing trace with hash 2081068773, now seen corresponding path program 1 times
[2022-12-13 12:06:07,618 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:07,618 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444868116]
[2022-12-13 12:06:07,619 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:07,619 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:07,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:07,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:07,645 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:07,645 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444868116]
[2022-12-13 12:06:07,645 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444868116] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:07,645 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879094822]
[2022-12-13 12:06:07,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:07,645 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:07,645 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:07,646 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:07,647 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-12-13 12:06:07,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:07,695 INFO  L263         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:07,696 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:07,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 12:06:07,700 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:06:07,700 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879094822] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:07,700 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:06:07,700 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5
[2022-12-13 12:06:07,700 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573820472]
[2022-12-13 12:06:07,700 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:07,700 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:07,701 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:07,701 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:07,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-13 12:06:07,703 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 68 out of 171
[2022-12-13 12:06:07,703 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 64 flow. Second operand  has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,703 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:07,703 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 171
[2022-12-13 12:06:07,703 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:07,769 INFO  L130       PetriNetUnfolder]: 321/574 cut-off events.
[2022-12-13 12:06:07,769 INFO  L131       PetriNetUnfolder]: For 73/73 co-relation queries the response was YES.
[2022-12-13 12:06:07,770 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1249 conditions, 574 events. 321/574 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2318 event pairs, 201 based on Foata normal form. 0/548 useless extension candidates. Maximal degree in co-relation 1240. Up to 466 conditions per place. 
[2022-12-13 12:06:07,772 INFO  L137   encePairwiseOnDemand]: 164/171 looper letters, 13 selfloop transitions, 5 changer transitions 2/22 dead transitions.
[2022-12-13 12:06:07,772 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 114 flow
[2022-12-13 12:06:07,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:07,773 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:07,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions.
[2022-12-13 12:06:07,774 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.43664717348927873
[2022-12-13 12:06:07,774 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 224 transitions.
[2022-12-13 12:06:07,774 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions.
[2022-12-13 12:06:07,774 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:07,774 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions.
[2022-12-13 12:06:07,775 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,776 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,776 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,776 INFO  L175             Difference]: Start difference. First operand has 29 places, 17 transitions, 64 flow. Second operand 3 states and 224 transitions.
[2022-12-13 12:06:07,776 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 114 flow
[2022-12-13 12:06:07,777 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:07,777 INFO  L231             Difference]: Finished difference. Result has 31 places, 20 transitions, 93 flow
[2022-12-13 12:06:07,777 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=31, PETRI_TRANSITIONS=20}
[2022-12-13 12:06:07,778 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, -5 predicate places.
[2022-12-13 12:06:07,778 INFO  L495      AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 93 flow
[2022-12-13 12:06:07,778 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:07,778 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:07,778 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:07,783 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2022-12-13 12:06:07,978 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2022-12-13 12:06:07,979 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2022-12-13 12:06:07,979 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:07,979 INFO  L85        PathProgramCache]: Analyzing trace with hash 88627364, now seen corresponding path program 1 times
[2022-12-13 12:06:07,979 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:07,979 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722829403]
[2022-12-13 12:06:07,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:07,980 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:07,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:08,004 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:08,005 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:08,005 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722829403]
[2022-12-13 12:06:08,005 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722829403] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:08,005 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66236989]
[2022-12-13 12:06:08,005 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:08,005 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:08,005 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:08,006 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:08,007 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-12-13 12:06:08,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:08,051 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:08,051 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:08,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:08,058 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 12:06:08,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:08,070 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [66236989] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 12:06:08,070 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 12:06:08,070 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5
[2022-12-13 12:06:08,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104510706]
[2022-12-13 12:06:08,070 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 12:06:08,071 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-12-13 12:06:08,071 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:08,071 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-12-13 12:06:08,071 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-12-13 12:06:08,080 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171
[2022-12-13 12:06:08,080 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 93 flow. Second operand  has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:08,081 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:08,081 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171
[2022-12-13 12:06:08,081 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:08,136 INFO  L130       PetriNetUnfolder]: 205/366 cut-off events.
[2022-12-13 12:06:08,136 INFO  L131       PetriNetUnfolder]: For 205/205 co-relation queries the response was YES.
[2022-12-13 12:06:08,137 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 366 events. 205/366 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1242 event pairs, 8 based on Foata normal form. 14/380 useless extension candidates. Maximal degree in co-relation 1091. Up to 251 conditions per place. 
[2022-12-13 12:06:08,139 INFO  L137   encePairwiseOnDemand]: 167/171 looper letters, 27 selfloop transitions, 6 changer transitions 0/36 dead transitions.
[2022-12-13 12:06:08,139 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 215 flow
[2022-12-13 12:06:08,139 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-12-13 12:06:08,139 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-12-13 12:06:08,140 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 428 transitions.
[2022-12-13 12:06:08,141 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4171539961013645
[2022-12-13 12:06:08,141 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 428 transitions.
[2022-12-13 12:06:08,141 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 428 transitions.
[2022-12-13 12:06:08,141 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:08,141 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 428 transitions.
[2022-12-13 12:06:08,142 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:08,144 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:08,144 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:08,144 INFO  L175             Difference]: Start difference. First operand has 31 places, 20 transitions, 93 flow. Second operand 6 states and 428 transitions.
[2022-12-13 12:06:08,144 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 215 flow
[2022-12-13 12:06:08,146 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:08,146 INFO  L231             Difference]: Finished difference. Result has 38 places, 23 transitions, 128 flow
[2022-12-13 12:06:08,147 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=38, PETRI_TRANSITIONS=23}
[2022-12-13 12:06:08,147 INFO  L288   CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places.
[2022-12-13 12:06:08,147 INFO  L495      AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 128 flow
[2022-12-13 12:06:08,147 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:08,147 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:08,148 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:08,152 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2022-12-13 12:06:08,348 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2022-12-13 12:06:08,349 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2022-12-13 12:06:08,349 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:08,349 INFO  L85        PathProgramCache]: Analyzing trace with hash 943701256, now seen corresponding path program 1 times
[2022-12-13 12:06:08,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:08,349 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053962709]
[2022-12-13 12:06:08,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:08,349 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:08,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:08,364 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-12-13 12:06:08,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:08,378 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-12-13 12:06:08,379 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2022-12-13 12:06:08,379 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining)
[2022-12-13 12:06:08,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining)
[2022-12-13 12:06:08,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining)
[2022-12-13 12:06:08,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining)
[2022-12-13 12:06:08,379 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining)
[2022-12-13 12:06:08,380 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining)
[2022-12-13 12:06:08,380 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining)
[2022-12-13 12:06:08,380 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining)
[2022-12-13 12:06:08,380 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining)
[2022-12-13 12:06:08,380 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-12-13 12:06:08,380 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-12-13 12:06:08,381 WARN  L233   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-12-13 12:06:08,381 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2022-12-13 12:06:08,395 INFO  L144    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2022-12-13 12:06:08,397 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 104 places, 101 transitions, 262 flow
[2022-12-13 12:06:08,462 INFO  L130       PetriNetUnfolder]: 98/882 cut-off events.
[2022-12-13 12:06:08,462 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2022-12-13 12:06:08,463 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 993 conditions, 882 events. 98/882 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4021 event pairs, 23 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 533. Up to 80 conditions per place. 
[2022-12-13 12:06:08,463 INFO  L82        GeneralOperation]: Start removeDead. Operand has 104 places, 101 transitions, 262 flow
[2022-12-13 12:06:08,465 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 104 places, 101 transitions, 262 flow
[2022-12-13 12:06:08,465 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2022-12-13 12:06:08,465 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 101 transitions, 262 flow
[2022-12-13 12:06:08,465 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 101 transitions, 262 flow
[2022-12-13 12:06:08,465 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 104 places, 101 transitions, 262 flow
[2022-12-13 12:06:08,524 INFO  L130       PetriNetUnfolder]: 98/882 cut-off events.
[2022-12-13 12:06:08,524 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2022-12-13 12:06:08,525 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 993 conditions, 882 events. 98/882 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4021 event pairs, 23 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 533. Up to 80 conditions per place. 
[2022-12-13 12:06:08,532 INFO  L119        LiptonReduction]: Number of co-enabled transitions 3480
[2022-12-13 12:06:09,781 INFO  L134        LiptonReduction]: Checked pairs total: 5618
[2022-12-13 12:06:09,781 INFO  L136        LiptonReduction]: Total number of compositions: 83
[2022-12-13 12:06:09,782 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 12:06:09,783 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;@78df3b96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 12:06:09,783 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2022-12-13 12:06:09,783 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2022-12-13 12:06:09,783 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-13 12:06:09,783 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:09,783 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2022-12-13 12:06:09,783 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:09,784 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:09,784 INFO  L85        PathProgramCache]: Analyzing trace with hash 973, now seen corresponding path program 1 times
[2022-12-13 12:06:09,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:09,784 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823363416]
[2022-12-13 12:06:09,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:09,784 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:09,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:09,787 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:09,787 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:09,787 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823363416]
[2022-12-13 12:06:09,787 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823363416] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:09,787 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:09,788 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-12-13 12:06:09,788 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18118181]
[2022-12-13 12:06:09,788 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:09,788 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 12:06:09,788 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:09,788 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 12:06:09,788 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 12:06:09,788 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 75 out of 184
[2022-12-13 12:06:09,788 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 132 flow. Second operand  has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:09,788 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:09,789 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 184
[2022-12-13 12:06:09,789 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:10,071 INFO  L130       PetriNetUnfolder]: 2250/3713 cut-off events.
[2022-12-13 12:06:10,071 INFO  L131       PetriNetUnfolder]: For 1067/1067 co-relation queries the response was YES.
[2022-12-13 12:06:10,075 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 7806 conditions, 3713 events. 2250/3713 cut-off events. For 1067/1067 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 19063 event pairs, 2129 based on Foata normal form. 0/3375 useless extension candidates. Maximal degree in co-relation 2476. Up to 3442 conditions per place. 
[2022-12-13 12:06:10,080 INFO  L137   encePairwiseOnDemand]: 176/184 looper letters, 14 selfloop transitions, 0 changer transitions 10/28 dead transitions.
[2022-12-13 12:06:10,080 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 162 flow
[2022-12-13 12:06:10,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 12:06:10,081 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-12-13 12:06:10,082 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 181 transitions.
[2022-12-13 12:06:10,082 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.49184782608695654
[2022-12-13 12:06:10,082 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 181 transitions.
[2022-12-13 12:06:10,082 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 181 transitions.
[2022-12-13 12:06:10,082 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:10,082 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 181 transitions.
[2022-12-13 12:06:10,083 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,083 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,084 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,084 INFO  L175             Difference]: Start difference. First operand has 41 places, 36 transitions, 132 flow. Second operand 2 states and 181 transitions.
[2022-12-13 12:06:10,084 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 162 flow
[2022-12-13 12:06:10,085 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 162 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:10,085 INFO  L231             Difference]: Finished difference. Result has 35 places, 18 transitions, 81 flow
[2022-12-13 12:06:10,086 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=81, PETRI_PLACES=35, PETRI_TRANSITIONS=18}
[2022-12-13 12:06:10,086 INFO  L288   CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places.
[2022-12-13 12:06:10,086 INFO  L495      AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 81 flow
[2022-12-13 12:06:10,086 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,086 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:10,086 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2022-12-13 12:06:10,087 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-12-13 12:06:10,087 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:10,087 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:10,087 INFO  L85        PathProgramCache]: Analyzing trace with hash 962703, now seen corresponding path program 1 times
[2022-12-13 12:06:10,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:10,087 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944697419]
[2022-12-13 12:06:10,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:10,087 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:10,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:10,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:10,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:10,102 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944697419]
[2022-12-13 12:06:10,102 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944697419] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:10,102 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:06:10,102 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 12:06:10,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759778303]
[2022-12-13 12:06:10,102 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:10,102 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:10,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:10,103 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:10,103 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:06:10,110 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 71 out of 184
[2022-12-13 12:06:10,110 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 81 flow. Second operand  has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,110 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:10,110 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 184
[2022-12-13 12:06:10,111 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:10,180 INFO  L130       PetriNetUnfolder]: 485/846 cut-off events.
[2022-12-13 12:06:10,180 INFO  L131       PetriNetUnfolder]: For 444/444 co-relation queries the response was YES.
[2022-12-13 12:06:10,181 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1829 conditions, 846 events. 485/846 cut-off events. For 444/444 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3614 event pairs, 362 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 1821. Up to 732 conditions per place. 
[2022-12-13 12:06:10,183 INFO  L137   encePairwiseOnDemand]: 181/184 looper letters, 15 selfloop transitions, 2 changer transitions 0/21 dead transitions.
[2022-12-13 12:06:10,183 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 21 transitions, 121 flow
[2022-12-13 12:06:10,183 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:10,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:10,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions.
[2022-12-13 12:06:10,184 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.41847826086956524
[2022-12-13 12:06:10,184 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 231 transitions.
[2022-12-13 12:06:10,184 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions.
[2022-12-13 12:06:10,184 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:10,184 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions.
[2022-12-13 12:06:10,185 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,185 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,185 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,185 INFO  L175             Difference]: Start difference. First operand has 35 places, 18 transitions, 81 flow. Second operand 3 states and 231 transitions.
[2022-12-13 12:06:10,185 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 21 transitions, 121 flow
[2022-12-13 12:06:10,186 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 101 flow, removed 10 selfloop flow, removed 0 redundant places.
[2022-12-13 12:06:10,186 INFO  L231             Difference]: Finished difference. Result has 33 places, 19 transitions, 73 flow
[2022-12-13 12:06:10,186 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=33, PETRI_TRANSITIONS=19}
[2022-12-13 12:06:10,187 INFO  L288   CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places.
[2022-12-13 12:06:10,187 INFO  L495      AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 73 flow
[2022-12-13 12:06:10,187 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,187 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:10,187 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:10,187 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-12-13 12:06:10,188 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:10,188 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:10,188 INFO  L85        PathProgramCache]: Analyzing trace with hash 1030643336, now seen corresponding path program 1 times
[2022-12-13 12:06:10,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:10,188 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031344201]
[2022-12-13 12:06:10,188 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:10,188 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:10,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:10,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:10,208 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:10,208 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031344201]
[2022-12-13 12:06:10,208 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031344201] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:10,208 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602866552]
[2022-12-13 12:06:10,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:10,208 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:10,208 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:10,209 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:10,210 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-12-13 12:06:10,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:10,256 INFO  L263         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:10,256 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:10,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 12:06:10,260 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:06:10,260 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [602866552] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:10,260 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:06:10,260 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5
[2022-12-13 12:06:10,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104655411]
[2022-12-13 12:06:10,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:10,261 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:06:10,261 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:10,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:06:10,261 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-13 12:06:10,263 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 72 out of 184
[2022-12-13 12:06:10,263 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 73 flow. Second operand  has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,263 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:10,263 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 184
[2022-12-13 12:06:10,263 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:10,348 INFO  L130       PetriNetUnfolder]: 899/1429 cut-off events.
[2022-12-13 12:06:10,348 INFO  L131       PetriNetUnfolder]: For 153/153 co-relation queries the response was YES.
[2022-12-13 12:06:10,350 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3056 conditions, 1429 events. 899/1429 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6099 event pairs, 572 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 3046. Up to 1202 conditions per place. 
[2022-12-13 12:06:10,352 INFO  L137   encePairwiseOnDemand]: 176/184 looper letters, 15 selfloop transitions, 6 changer transitions 2/25 dead transitions.
[2022-12-13 12:06:10,352 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 131 flow
[2022-12-13 12:06:10,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:06:10,353 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-13 12:06:10,353 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions.
[2022-12-13 12:06:10,353 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4329710144927536
[2022-12-13 12:06:10,353 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 239 transitions.
[2022-12-13 12:06:10,353 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 239 transitions.
[2022-12-13 12:06:10,353 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:10,353 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 239 transitions.
[2022-12-13 12:06:10,354 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,354 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,355 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,355 INFO  L175             Difference]: Start difference. First operand has 33 places, 19 transitions, 73 flow. Second operand 3 states and 239 transitions.
[2022-12-13 12:06:10,355 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 131 flow
[2022-12-13 12:06:10,355 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:10,355 INFO  L231             Difference]: Finished difference. Result has 35 places, 23 transitions, 109 flow
[2022-12-13 12:06:10,355 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=35, PETRI_TRANSITIONS=23}
[2022-12-13 12:06:10,356 INFO  L288   CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places.
[2022-12-13 12:06:10,356 INFO  L495      AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 109 flow
[2022-12-13 12:06:10,356 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,356 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:10,356 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:10,361 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2022-12-13 12:06:10,556 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:10,558 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:10,558 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:10,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 1885177798, now seen corresponding path program 1 times
[2022-12-13 12:06:10,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:10,559 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104736580]
[2022-12-13 12:06:10,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:10,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:10,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:10,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:10,616 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:10,616 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104736580]
[2022-12-13 12:06:10,616 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104736580] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:10,616 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818656702]
[2022-12-13 12:06:10,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:10,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:10,616 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:10,617 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:10,618 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2022-12-13 12:06:10,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:10,669 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:06:10,670 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:10,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:10,680 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 12:06:10,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:10,693 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818656702] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 12:06:10,693 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 12:06:10,693 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2022-12-13 12:06:10,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136386335]
[2022-12-13 12:06:10,693 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 12:06:10,694 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 12:06:10,694 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:10,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 12:06:10,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-12-13 12:06:10,711 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 70 out of 184
[2022-12-13 12:06:10,711 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 109 flow. Second operand  has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,712 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:10,712 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 184
[2022-12-13 12:06:10,712 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:10,816 INFO  L130       PetriNetUnfolder]: 628/1003 cut-off events.
[2022-12-13 12:06:10,816 INFO  L131       PetriNetUnfolder]: For 536/536 co-relation queries the response was YES.
[2022-12-13 12:06:10,817 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 1003 events. 628/1003 cut-off events. For 536/536 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3830 event pairs, 56 based on Foata normal form. 14/1016 useless extension candidates. Maximal degree in co-relation 3043. Up to 752 conditions per place. 
[2022-12-13 12:06:10,822 INFO  L137   encePairwiseOnDemand]: 180/184 looper letters, 31 selfloop transitions, 6 changer transitions 0/40 dead transitions.
[2022-12-13 12:06:10,822 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 243 flow
[2022-12-13 12:06:10,822 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-12-13 12:06:10,822 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-12-13 12:06:10,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions.
[2022-12-13 12:06:10,823 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4121376811594203
[2022-12-13 12:06:10,823 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 455 transitions.
[2022-12-13 12:06:10,823 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 455 transitions.
[2022-12-13 12:06:10,823 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:10,823 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 455 transitions.
[2022-12-13 12:06:10,824 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,826 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,826 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,826 INFO  L175             Difference]: Start difference. First operand has 35 places, 23 transitions, 109 flow. Second operand 6 states and 455 transitions.
[2022-12-13 12:06:10,826 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 243 flow
[2022-12-13 12:06:10,828 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:10,828 INFO  L231             Difference]: Finished difference. Result has 42 places, 26 transitions, 143 flow
[2022-12-13 12:06:10,828 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=143, PETRI_PLACES=42, PETRI_TRANSITIONS=26}
[2022-12-13 12:06:10,829 INFO  L288   CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places.
[2022-12-13 12:06:10,829 INFO  L495      AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 143 flow
[2022-12-13 12:06:10,829 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:10,829 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:10,829 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:10,834 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2022-12-13 12:06:11,030 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2022-12-13 12:06:11,030 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:11,031 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:11,031 INFO  L85        PathProgramCache]: Analyzing trace with hash 1184132085, now seen corresponding path program 1 times
[2022-12-13 12:06:11,032 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:11,032 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578914622]
[2022-12-13 12:06:11,032 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:11,033 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:11,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:11,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:11,098 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:11,098 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578914622]
[2022-12-13 12:06:11,098 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578914622] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:11,098 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778997254]
[2022-12-13 12:06:11,098 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:11,098 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:11,099 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:11,099 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:11,101 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2022-12-13 12:06:11,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:11,174 INFO  L263         TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-12-13 12:06:11,175 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:11,193 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:11,193 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 12:06:11,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:11,217 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778997254] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 12:06:11,217 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 12:06:11,217 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7
[2022-12-13 12:06:11,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76954622]
[2022-12-13 12:06:11,217 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 12:06:11,217 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-12-13 12:06:11,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:11,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-12-13 12:06:11,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2022-12-13 12:06:11,230 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 70 out of 184
[2022-12-13 12:06:11,231 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 143 flow. Second operand  has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,231 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:11,231 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 184
[2022-12-13 12:06:11,231 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:11,318 INFO  L130       PetriNetUnfolder]: 555/884 cut-off events.
[2022-12-13 12:06:11,318 INFO  L131       PetriNetUnfolder]: For 896/896 co-relation queries the response was YES.
[2022-12-13 12:06:11,320 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 884 events. 555/884 cut-off events. For 896/896 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3254 event pairs, 16 based on Foata normal form. 16/899 useless extension candidates. Maximal degree in co-relation 2904. Up to 649 conditions per place. 
[2022-12-13 12:06:11,322 INFO  L137   encePairwiseOnDemand]: 180/184 looper letters, 36 selfloop transitions, 7 changer transitions 0/46 dead transitions.
[2022-12-13 12:06:11,322 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 315 flow
[2022-12-13 12:06:11,322 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-12-13 12:06:11,322 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2022-12-13 12:06:11,323 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 529 transitions.
[2022-12-13 12:06:11,323 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4107142857142857
[2022-12-13 12:06:11,323 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 529 transitions.
[2022-12-13 12:06:11,323 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 529 transitions.
[2022-12-13 12:06:11,323 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:11,324 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 529 transitions.
[2022-12-13 12:06:11,324 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,325 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,325 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,325 INFO  L175             Difference]: Start difference. First operand has 42 places, 26 transitions, 143 flow. Second operand 7 states and 529 transitions.
[2022-12-13 12:06:11,325 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 315 flow
[2022-12-13 12:06:11,327 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 46 transitions, 305 flow, removed 4 selfloop flow, removed 1 redundant places.
[2022-12-13 12:06:11,327 INFO  L231             Difference]: Finished difference. Result has 49 places, 28 transitions, 171 flow
[2022-12-13 12:06:11,327 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=171, PETRI_PLACES=49, PETRI_TRANSITIONS=28}
[2022-12-13 12:06:11,327 INFO  L288   CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places.
[2022-12-13 12:06:11,327 INFO  L495      AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 171 flow
[2022-12-13 12:06:11,328 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,328 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:11,328 INFO  L209   CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:11,332 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2022-12-13 12:06:11,528 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:11,529 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:11,530 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:11,530 INFO  L85        PathProgramCache]: Analyzing trace with hash -1528773726, now seen corresponding path program 1 times
[2022-12-13 12:06:11,530 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:11,530 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819704454]
[2022-12-13 12:06:11,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:11,531 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:11,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:11,684 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 33 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:11,684 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:06:11,684 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819704454]
[2022-12-13 12:06:11,684 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819704454] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:06:11,684 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245666866]
[2022-12-13 12:06:11,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:11,684 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:06:11,684 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:06:11,685 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:06:11,686 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2022-12-13 12:06:11,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:06:11,758 INFO  L263         TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-12-13 12:06:11,759 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:06:11,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 12:06:11,789 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:06:11,789 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245666866] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:06:11,789 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:06:11,789 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8
[2022-12-13 12:06:11,789 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101202597]
[2022-12-13 12:06:11,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:06:11,789 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-12-13 12:06:11,789 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:06:11,790 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-12-13 12:06:11,790 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2022-12-13 12:06:11,805 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 70 out of 184
[2022-12-13 12:06:11,806 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 171 flow. Second operand  has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,806 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-13 12:06:11,806 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 184
[2022-12-13 12:06:11,806 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-13 12:06:11,926 INFO  L130       PetriNetUnfolder]: 475/756 cut-off events.
[2022-12-13 12:06:11,926 INFO  L131       PetriNetUnfolder]: For 1088/1088 co-relation queries the response was YES.
[2022-12-13 12:06:11,927 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 756 events. 475/756 cut-off events. For 1088/1088 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2560 event pairs, 0 based on Foata normal form. 32/787 useless extension candidates. Maximal degree in co-relation 2587. Up to 569 conditions per place. 
[2022-12-13 12:06:11,929 INFO  L137   encePairwiseOnDemand]: 181/184 looper letters, 36 selfloop transitions, 6 changer transitions 0/44 dead transitions.
[2022-12-13 12:06:11,929 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 313 flow
[2022-12-13 12:06:11,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-12-13 12:06:11,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2022-12-13 12:06:11,930 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 598 transitions.
[2022-12-13 12:06:11,931 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.40625
[2022-12-13 12:06:11,931 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 598 transitions.
[2022-12-13 12:06:11,931 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 598 transitions.
[2022-12-13 12:06:11,931 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-12-13 12:06:11,931 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 598 transitions.
[2022-12-13 12:06:11,932 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 9 states, 8 states have (on average 74.75) internal successors, (598), 8 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,933 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,934 INFO  L81            ComplementDD]: Finished complementDD. Result  has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,934 INFO  L175             Difference]: Start difference. First operand has 49 places, 28 transitions, 171 flow. Second operand 8 states and 598 transitions.
[2022-12-13 12:06:11,934 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 313 flow
[2022-12-13 12:06:11,935 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 304 flow, removed 0 selfloop flow, removed 5 redundant places.
[2022-12-13 12:06:11,936 INFO  L231             Difference]: Finished difference. Result has 50 places, 26 transitions, 160 flow
[2022-12-13 12:06:11,936 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=160, PETRI_PLACES=50, PETRI_TRANSITIONS=26}
[2022-12-13 12:06:11,936 INFO  L288   CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places.
[2022-12-13 12:06:11,936 INFO  L495      AbstractCegarLoop]: Abstraction has has 50 places, 26 transitions, 160 flow
[2022-12-13 12:06:11,936 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:06:11,936 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2022-12-13 12:06:11,937 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:11,941 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2022-12-13 12:06:12,137 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2022-12-13 12:06:12,137 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2022-12-13 12:06:12,138 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:06:12,138 INFO  L85        PathProgramCache]: Analyzing trace with hash -147372904, now seen corresponding path program 1 times
[2022-12-13 12:06:12,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:06:12,138 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018864417]
[2022-12-13 12:06:12,138 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:06:12,138 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:06:12,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:12,153 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-12-13 12:06:12,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 12:06:12,178 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-12-13 12:06:12,179 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2022-12-13 12:06:12,179 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining)
[2022-12-13 12:06:12,179 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining)
[2022-12-13 12:06:12,180 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining)
[2022-12-13 12:06:12,180 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 10 remaining)
[2022-12-13 12:06:12,180 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining)
[2022-12-13 12:06:12,180 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining)
[2022-12-13 12:06:12,181 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining)
[2022-12-13 12:06:12,181 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining)
[2022-12-13 12:06:12,181 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining)
[2022-12-13 12:06:12,181 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining)
[2022-12-13 12:06:12,182 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-12-13 12:06:12,182 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:06:12,193 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 5 thread instances
[2022-12-13 12:06:12,193 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-12-13 12:06:12,285 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:06:12 BasicIcfg
[2022-12-13 12:06:12,285 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-12-13 12:06:12,286 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-12-13 12:06:12,286 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-12-13 12:06:12,286 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-12-13 12:06:12,286 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:05:59" (3/4) ...
[2022-12-13 12:06:12,289 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-12-13 12:06:12,289 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-12-13 12:06:12,289 INFO  L158              Benchmark]: Toolchain (without parser) took 13571.17ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 83.2MB in the beginning and 73.2MB in the end (delta: 10.0MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB.
[2022-12-13 12:06:12,290 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 12:06:12,290 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 298.95ms. Allocated memory is still 115.3MB. Free memory was 82.8MB in the beginning and 63.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2022-12-13 12:06:12,290 INFO  L158              Benchmark]: Boogie Procedure Inliner took 28.25ms. Allocated memory is still 115.3MB. Free memory was 63.2MB in the beginning and 61.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-12-13 12:06:12,290 INFO  L158              Benchmark]: Boogie Preprocessor took 17.92ms. Allocated memory is still 115.3MB. Free memory was 61.1MB in the beginning and 59.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-12-13 12:06:12,290 INFO  L158              Benchmark]: RCFGBuilder took 311.27ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 59.8MB in the beginning and 111.5MB in the end (delta: -51.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB.
[2022-12-13 12:06:12,291 INFO  L158              Benchmark]: TraceAbstraction took 12905.66ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 110.8MB in the beginning and 73.2MB in the end (delta: 37.6MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB.
[2022-12-13 12:06:12,291 INFO  L158              Benchmark]: Witness Printer took 3.27ms. Allocated memory is still 169.9MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 12:06:12,292 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 298.95ms. Allocated memory is still 115.3MB. Free memory was 82.8MB in the beginning and 63.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 28.25ms. Allocated memory is still 115.3MB. Free memory was 63.2MB in the beginning and 61.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 17.92ms. Allocated memory is still 115.3MB. Free memory was 61.1MB in the beginning and 59.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 311.27ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 59.8MB in the beginning and 111.5MB in the end (delta: -51.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB.
 * TraceAbstraction took 12905.66ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 110.8MB in the beginning and 73.2MB in the end (delta: 37.6MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB.
 * Witness Printer took 3.27ms. Allocated memory is still 169.9MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.3s, 68 PlacesBefore, 19 PlacesAfterwards, 69 TransitionsBefore, 18 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 599 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 444, independent: 400, independent conditional: 0, independent unconditional: 400, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 235, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 444, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 235, unknown conditional: 0, unknown unconditional: 235] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.4s, 77 PlacesBefore, 26 PlacesAfterwards, 77 TransitionsBefore, 24 TransitionsAfterwards, 1068 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 1695 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1340, independent: 1291, independent conditional: 0, independent unconditional: 1291, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 575, independent: 552, independent conditional: 0, independent unconditional: 552, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1340, independent: 739, independent conditional: 0, independent unconditional: 739, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 575, unknown conditional: 0, unknown unconditional: 575] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.1s, 86 PlacesBefore, 31 PlacesAfterwards, 85 TransitionsBefore, 28 TransitionsAfterwards, 1764 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2779 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2151, independent: 2097, independent conditional: 0, independent unconditional: 2097, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 891, independent: 874, independent conditional: 0, independent unconditional: 874, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2151, independent: 1223, independent conditional: 0, independent unconditional: 1223, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 891, unknown conditional: 0, unknown unconditional: 891] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.3s, 95 PlacesBefore, 36 PlacesAfterwards, 93 TransitionsBefore, 32 TransitionsAfterwards, 2568 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 78 TotalNumberOfCompositions, 4103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3162, independent: 3103, independent conditional: 0, independent unconditional: 3103, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1333, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3162, independent: 1792, independent conditional: 0, independent unconditional: 1792, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 1333, unknown conditional: 0, unknown unconditional: 1333] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1.3s, 104 PlacesBefore, 41 PlacesAfterwards, 101 TransitionsBefore, 36 TransitionsAfterwards, 3480 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 83 TotalNumberOfCompositions, 5618 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4463, independent: 4409, independent conditional: 0, independent unconditional: 4409, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1764, independent: 1739, independent conditional: 0, independent unconditional: 1739, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4463, independent: 2670, independent conditional: 0, independent unconditional: 2670, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 1764, unknown conditional: 0, unknown unconditional: 1764] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - DataRaceFoundResult [Line: 726]: Data race detected
    Data race detected
The following path leads to a data race: 
[L710]               0  intptr_t x;
[L719]               0  pthread_t t[5 + 1];
[L721]               0  x = 0
[L723]               0  intptr_t i = 1;
        VAL             [\old(argc)=50, argc=50, argv={51:52}, argv={51:52}, i=1, t={3:0}, x=0]
[L723]  COND TRUE    0  i <= 5
[L724]  FCALL, FORK  0  pthread_create(t + i, 0, thread, (void *)i)
        VAL             [\old(argc)=50, arg={0:1}, argc=50, argv={51:52}, argv={51:52}, i=1, pthread_create(t + i, 0, thread, (void *)i)=-5, t={3:0}, x=0]
[L723]               0  i++
        VAL             [\old(argc)=50, arg={0:1}, argc=50, argv={51:52}, argv={51:52}, i=2, t={3:0}, x=0]
[L723]  COND TRUE    0  i <= 5
[L724]  FCALL, FORK  0  pthread_create(t + i, 0, thread, (void *)i)
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=2, pthread_create(t + i, 0, thread, (void *)i)=-4, t={3:0}, x=0]
[L723]               0  i++
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=3, t={3:0}, x=0]
[L723]  COND TRUE    0  i <= 5
[L724]  FCALL, FORK  0  pthread_create(t + i, 0, thread, (void *)i)
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=3, pthread_create(t + i, 0, thread, (void *)i)=-3, t={3:0}, x=0]
[L723]               0  i++
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=4, t={3:0}, x=0]
[L723]  COND TRUE    0  i <= 5
[L724]  FCALL, FORK  0  pthread_create(t + i, 0, thread, (void *)i)
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=4, pthread_create(t + i, 0, thread, (void *)i)=-2, t={3:0}, x=0]
[L723]               0  i++
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=5, t={3:0}, x=0]
[L723]  COND TRUE    0  i <= 5
[L724]  FCALL, FORK  0  pthread_create(t + i, 0, thread, (void *)i)
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=5, pthread_create(t + i, 0, thread, (void *)i)=-1, t={3:0}, x=0]
[L723]               0  i++
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=6, t={3:0}, x=0]
[L723]  COND FALSE   0  !(i <= 5)
[L726]               0  x < 5 + 1
        VAL             [\old(argc)=50, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=6, t={3:0}, x=0]
[L712]               1  intptr_t thread = (intptr_t)arg;
[L714]               1  x = thread
[L716]               1  return ((void *)0);
[L726]               0  x < 5 + 1
        VAL             [\old(argc)=50, \result={0:0}, arg={0:1}, arg={0:2}, argc=50, argv={51:52}, argv={51:52}, i=6, t={3:0}, thread=1, x=1]

Now there is a data race on ~x~0 between 
	C: x = thread [714]
and
	C: x < 5 + 1 [726]

  - UnprovableResult [Line: 721]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 730]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 714]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 3 procedures, 73 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 10 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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, 80 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 2 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 1/5 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 3 thread instances
    CFG has 5 procedures, 87 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 1/5 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, 94 locations, 9 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 144 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 1/5 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 5 thread instances
    CFG has 7 procedures, 101 locations, 10 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: 3.8s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 376 IncrementalHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 4 mSDtfsCounter, 376 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=5, InterpolantAutomatonStates: 29, 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, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 84/189 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2022-12-13 12:06:12,362 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d6f079-9f0e-4fbc-8409-ab01a5fc3555/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

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