./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:14:30,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:14:30,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:14:30,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:14:30,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:14:30,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:14:30,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:14:30,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:14:30,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:14:30,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:14:30,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:14:30,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:14:30,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:14:30,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:14:30,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:14:30,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:14:30,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:14:30,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:14:30,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:14:30,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:14:30,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:14:30,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:14:30,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:14:30,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:14:30,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:14:30,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:14:30,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:14:30,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:14:30,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:14:30,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:14:30,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:14:30,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:14:30,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:14:30,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:14:30,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:14:30,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:14:30,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:14:30,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:14:30,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:14:30,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:14:30,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:14:30,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:14:30,843 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:14:30,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:14:30,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:14:30,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:14:30,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:14:30,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:14:30,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:14:30,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:14:30,847 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:14:30,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:14:30,848 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:14:30,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:14:30,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:14:30,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:14:30,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:14:30,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:14:30,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:14:30,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:14:30,849 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:14:30,850 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:14:30,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:14:30,850 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:14:30,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:14:30,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:14:30,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:14:30,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:14:30,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:14:30,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:14:30,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:14:30,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:14:30,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:14:30,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:14:30,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:14:30,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:14:30,853 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:14:30,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:14:30,853 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:14:30,853 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:14:31,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:14:31,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:14:31,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:14:31,206 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:14:31,207 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:14:31,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-08-29 19:14:32,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:14:32,597 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:14:32,598 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-08-29 19:14:32,604 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063a2e7c4/c709a98c838f4e579fd2d31e28f12a31/FLAGb99236146 [2023-08-29 19:14:32,616 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063a2e7c4/c709a98c838f4e579fd2d31e28f12a31 [2023-08-29 19:14:32,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:14:32,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:14:32,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:14:32,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:14:32,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:14:32,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:32,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b53caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32, skipping insertion in model container [2023-08-29 19:14:32,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:32,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:14:32,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:14:32,870 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c[2823,2836] [2023-08-29 19:14:32,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:14:32,901 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:14:32,949 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c[2823,2836] [2023-08-29 19:14:32,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:14:32,982 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:14:32,983 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:14:32,989 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:14:32,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32 WrapperNode [2023-08-29 19:14:32,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:14:32,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:14:32,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:14:32,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:14:32,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,067 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 375 [2023-08-29 19:14:33,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:14:33,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:14:33,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:14:33,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:14:33,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,154 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:14:33,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:14:33,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:14:33,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:14:33,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (1/1) ... [2023-08-29 19:14:33,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:14:33,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:14:33,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 19:14:33,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 19:14:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:14:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:14:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:14:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:14:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:14:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:14:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:14:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:14:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 19:14:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 19:14:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:14:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:14:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:14:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 19:14:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:14:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:14:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:14:33,289 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:14:33,424 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:14:33,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:14:34,160 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:14:34,339 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:14:34,340 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 19:14:34,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:14:34 BoogieIcfgContainer [2023-08-29 19:14:34,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:14:34,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:14:34,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:14:34,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:14:34,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:14:32" (1/3) ... [2023-08-29 19:14:34,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150c59d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:14:34, skipping insertion in model container [2023-08-29 19:14:34,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:32" (2/3) ... [2023-08-29 19:14:34,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150c59d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:14:34, skipping insertion in model container [2023-08-29 19:14:34,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:14:34" (3/3) ... [2023-08-29 19:14:34,350 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2023-08-29 19:14:34,357 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:14:34,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:14:34,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-08-29 19:14:34,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:14:34,495 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 19:14:34,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 480 places, 497 transitions, 1018 flow [2023-08-29 19:14:34,727 INFO L130 PetriNetUnfolder]: 27/494 cut-off events. [2023-08-29 19:14:34,728 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:14:34,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 494 events. 27/494 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 628 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 399. Up to 3 conditions per place. [2023-08-29 19:14:34,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 480 places, 497 transitions, 1018 flow [2023-08-29 19:14:34,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:34,751 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:14:34,772 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:34,777 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:34,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:34,853 INFO L130 PetriNetUnfolder]: 24/456 cut-off events. [2023-08-29 19:14:34,854 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:14:34,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 456 events. 24/456 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 621 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 399. Up to 3 conditions per place. [2023-08-29 19:14:34,864 INFO L119 LiptonReduction]: Number of co-enabled transitions 13362 [2023-08-29 19:14:59,887 INFO L134 LiptonReduction]: Checked pairs total: 104366 [2023-08-29 19:14:59,887 INFO L136 LiptonReduction]: Total number of compositions: 452 [2023-08-29 19:14:59,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:14:59,904 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;@10abfee6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:14:59,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-08-29 19:14:59,906 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:14:59,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:14:59,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:14:59,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:14:59,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:14:59,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:14:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2023-08-29 19:14:59,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:14:59,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303681570] [2023-08-29 19:14:59,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:14:59,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:14:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:14:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:14:59,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:14:59,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303681570] [2023-08-29 19:15:00,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303681570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:00,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:00,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:15:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863145075] [2023-08-29 19:15:00,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:00,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:15:00,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:00,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:15:00,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:15:00,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 949 [2023-08-29 19:15:00,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 143 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:00,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:00,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 949 [2023-08-29 19:15:00,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:00,587 INFO L130 PetriNetUnfolder]: 1464/3602 cut-off events. [2023-08-29 19:15:00,588 INFO L131 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2023-08-29 19:15:00,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 3602 events. 1464/3602 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 29406 event pairs, 753 based on Foata normal form. 531/3237 useless extension candidates. Maximal degree in co-relation 5158. Up to 1909 conditions per place. [2023-08-29 19:15:00,614 INFO L137 encePairwiseOnDemand]: 903/949 looper letters, 35 selfloop transitions, 0 changer transitions 1/97 dead transitions. [2023-08-29 19:15:00,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 97 transitions, 284 flow [2023-08-29 19:15:00,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:15:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:15:00,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 992 transitions. [2023-08-29 19:15:00,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5226554267650158 [2023-08-29 19:15:00,635 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 992 transitions. [2023-08-29 19:15:00,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 992 transitions. [2023-08-29 19:15:00,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:00,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 992 transitions. [2023-08-29 19:15:00,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 496.0) internal successors, (992), 2 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:00,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 949.0) internal successors, (2847), 3 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:00,657 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 949.0) internal successors, (2847), 3 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:00,659 INFO L175 Difference]: Start difference. First operand has 141 places, 143 transitions, 304 flow. Second operand 2 states and 992 transitions. [2023-08-29 19:15:00,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 97 transitions, 284 flow [2023-08-29 19:15:00,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 97 transitions, 272 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 19:15:00,668 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 197 flow [2023-08-29 19:15:00,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=197, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2023-08-29 19:15:00,677 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -48 predicate places. [2023-08-29 19:15:00,679 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 197 flow [2023-08-29 19:15:00,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:00,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:00,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:00,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:15:00,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:00,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash -938995998, now seen corresponding path program 1 times [2023-08-29 19:15:00,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:00,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319481434] [2023-08-29 19:15:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:00,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:00,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:00,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319481434] [2023-08-29 19:15:00,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319481434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:00,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:00,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:00,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906105923] [2023-08-29 19:15:00,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:00,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:00,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:00,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:01,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 949 [2023-08-29 19:15:01,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:01,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:01,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 949 [2023-08-29 19:15:01,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:01,695 INFO L130 PetriNetUnfolder]: 2244/5346 cut-off events. [2023-08-29 19:15:01,695 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-29 19:15:01,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8513 conditions, 5346 events. 2244/5346 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 44393 event pairs, 1615 based on Foata normal form. 0/4332 useless extension candidates. Maximal degree in co-relation 8510. Up to 3097 conditions per place. [2023-08-29 19:15:01,726 INFO L137 encePairwiseOnDemand]: 945/949 looper letters, 38 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-08-29 19:15:01,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 269 flow [2023-08-29 19:15:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1341 transitions. [2023-08-29 19:15:01,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102212855637515 [2023-08-29 19:15:01,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1341 transitions. [2023-08-29 19:15:01,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1341 transitions. [2023-08-29 19:15:01,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:01,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1341 transitions. [2023-08-29 19:15:01,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:01,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:01,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:01,744 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 197 flow. Second operand 3 states and 1341 transitions. [2023-08-29 19:15:01,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 269 flow [2023-08-29 19:15:01,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:01,747 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 193 flow [2023-08-29 19:15:01,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2023-08-29 19:15:01,748 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -50 predicate places. [2023-08-29 19:15:01,748 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 193 flow [2023-08-29 19:15:01,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:01,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:01,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:01,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:15:01,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:01,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash -431632596, now seen corresponding path program 1 times [2023-08-29 19:15:01,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:01,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687928011] [2023-08-29 19:15:01,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:01,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:01,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:01,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687928011] [2023-08-29 19:15:01,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687928011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:01,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:01,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:01,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673838680] [2023-08-29 19:15:01,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:01,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:01,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:01,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 949 [2023-08-29 19:15:01,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:01,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:01,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 949 [2023-08-29 19:15:01,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:02,309 INFO L130 PetriNetUnfolder]: 1885/4239 cut-off events. [2023-08-29 19:15:02,310 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:15:02,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6769 conditions, 4239 events. 1885/4239 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 32940 event pairs, 1010 based on Foata normal form. 0/3294 useless extension candidates. Maximal degree in co-relation 6765. Up to 2453 conditions per place. [2023-08-29 19:15:02,363 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 37 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-08-29 19:15:02,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 265 flow [2023-08-29 19:15:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:02,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2023-08-29 19:15:02,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47980330172110996 [2023-08-29 19:15:02,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2023-08-29 19:15:02,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2023-08-29 19:15:02,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:02,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2023-08-29 19:15:02,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:02,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:02,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:02,379 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 193 flow. Second operand 3 states and 1366 transitions. [2023-08-29 19:15:02,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 265 flow [2023-08-29 19:15:02,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:02,383 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 190 flow [2023-08-29 19:15:02,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2023-08-29 19:15:02,385 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -51 predicate places. [2023-08-29 19:15:02,387 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 190 flow [2023-08-29 19:15:02,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:02,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:02,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:02,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:15:02,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:02,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:02,389 INFO L85 PathProgramCache]: Analyzing trace with hash -96971984, now seen corresponding path program 1 times [2023-08-29 19:15:02,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:02,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53418056] [2023-08-29 19:15:02,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:02,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:02,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:02,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:02,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53418056] [2023-08-29 19:15:02,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53418056] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:02,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:02,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:02,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999436827] [2023-08-29 19:15:02,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:02,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:02,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:02,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:02,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:02,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 949 [2023-08-29 19:15:02,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:02,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:02,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 949 [2023-08-29 19:15:02,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:03,188 INFO L130 PetriNetUnfolder]: 1464/3422 cut-off events. [2023-08-29 19:15:03,189 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:15:03,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5387 conditions, 3422 events. 1464/3422 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26774 event pairs, 753 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 5383. Up to 1908 conditions per place. [2023-08-29 19:15:03,209 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 34 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-08-29 19:15:03,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 264 flow [2023-08-29 19:15:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2023-08-29 19:15:03,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47980330172110996 [2023-08-29 19:15:03,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2023-08-29 19:15:03,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2023-08-29 19:15:03,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:03,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2023-08-29 19:15:03,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,226 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 190 flow. Second operand 3 states and 1366 transitions. [2023-08-29 19:15:03,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 264 flow [2023-08-29 19:15:03,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:03,228 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 201 flow [2023-08-29 19:15:03,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2023-08-29 19:15:03,229 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -49 predicate places. [2023-08-29 19:15:03,229 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 201 flow [2023-08-29 19:15:03,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:03,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:03,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:15:03,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:03,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:03,231 INFO L85 PathProgramCache]: Analyzing trace with hash -41923511, now seen corresponding path program 1 times [2023-08-29 19:15:03,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:03,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302088298] [2023-08-29 19:15:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:03,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:15:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:03,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302088298] [2023-08-29 19:15:03,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302088298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 19:15:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040608017] [2023-08-29 19:15:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:03,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 19:15:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 19:15:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 19:15:03,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 949 [2023-08-29 19:15:03,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 443.75) internal successors, (1775), 4 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:03,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 949 [2023-08-29 19:15:03,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:03,909 INFO L130 PetriNetUnfolder]: 1464/3424 cut-off events. [2023-08-29 19:15:03,910 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:15:03,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5397 conditions, 3424 events. 1464/3424 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26804 event pairs, 753 based on Foata normal form. 0/2618 useless extension candidates. Maximal degree in co-relation 5392. Up to 1907 conditions per place. [2023-08-29 19:15:03,927 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 32 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2023-08-29 19:15:03,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 281 flow [2023-08-29 19:15:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 19:15:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 19:15:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1804 transitions. [2023-08-29 19:15:03,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47523709167544786 [2023-08-29 19:15:03,933 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1804 transitions. [2023-08-29 19:15:03,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1804 transitions. [2023-08-29 19:15:03,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:03,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1804 transitions. [2023-08-29 19:15:03,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 949.0) internal successors, (4745), 5 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,946 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 949.0) internal successors, (4745), 5 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,946 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 201 flow. Second operand 4 states and 1804 transitions. [2023-08-29 19:15:03,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 281 flow [2023-08-29 19:15:03,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 277 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:03,948 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 225 flow [2023-08-29 19:15:03,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2023-08-29 19:15:03,949 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -46 predicate places. [2023-08-29 19:15:03,949 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 225 flow [2023-08-29 19:15:03,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 443.75) internal successors, (1775), 4 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:03,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:03,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:03,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:15:03,951 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:03,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:03,952 INFO L85 PathProgramCache]: Analyzing trace with hash 45779351, now seen corresponding path program 1 times [2023-08-29 19:15:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:03,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985611740] [2023-08-29 19:15:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:03,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:15:04,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:04,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985611740] [2023-08-29 19:15:04,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985611740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:04,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:04,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:04,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31116801] [2023-08-29 19:15:04,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:04,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:04,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:04,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:04,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:04,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 19:15:04,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:04,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:04,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 19:15:04,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:06,713 INFO L130 PetriNetUnfolder]: 7780/12675 cut-off events. [2023-08-29 19:15:06,713 INFO L131 PetriNetUnfolder]: For 20/32 co-relation queries the response was YES. [2023-08-29 19:15:06,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22527 conditions, 12675 events. 7780/12675 cut-off events. For 20/32 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 91995 event pairs, 1991 based on Foata normal form. 4/9566 useless extension candidates. Maximal degree in co-relation 22521. Up to 5477 conditions per place. [2023-08-29 19:15:06,802 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 115 selfloop transitions, 9 changer transitions 0/174 dead transitions. [2023-08-29 19:15:06,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 174 transitions, 635 flow [2023-08-29 19:15:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:15:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:15:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2726 transitions. [2023-08-29 19:15:06,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47874956094134175 [2023-08-29 19:15:06,811 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2726 transitions. [2023-08-29 19:15:06,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2726 transitions. [2023-08-29 19:15:06,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:06,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2726 transitions. [2023-08-29 19:15:06,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 454.3333333333333) internal successors, (2726), 6 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:06,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:06,830 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:06,830 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 225 flow. Second operand 6 states and 2726 transitions. [2023-08-29 19:15:06,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 174 transitions, 635 flow [2023-08-29 19:15:06,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 174 transitions, 634 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:06,835 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 288 flow [2023-08-29 19:15:06,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2023-08-29 19:15:06,838 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -37 predicate places. [2023-08-29 19:15:06,838 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 288 flow [2023-08-29 19:15:06,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:06,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:06,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:06,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 19:15:06,840 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:06,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash 40373737, now seen corresponding path program 1 times [2023-08-29 19:15:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:06,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813640960] [2023-08-29 19:15:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:06,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813640960] [2023-08-29 19:15:07,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813640960] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:15:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899248526] [2023-08-29 19:15:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:07,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:15:07,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:15:07,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:15:07,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 19:15:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:07,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 19:15:07,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:15:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:07,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:15:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:07,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899248526] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 19:15:07,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 19:15:07,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 19:15:07,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645089288] [2023-08-29 19:15:07,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 19:15:07,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 19:15:07,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 19:15:07,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:15:08,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 19:15:08,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 288 flow. Second operand has 12 states, 12 states have (on average 432.6666666666667) internal successors, (5192), 12 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:08,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:08,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 19:15:08,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:09,989 INFO L130 PetriNetUnfolder]: 5656/11573 cut-off events. [2023-08-29 19:15:09,989 INFO L131 PetriNetUnfolder]: For 1492/1613 co-relation queries the response was YES. [2023-08-29 19:15:10,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 11573 events. 5656/11573 cut-off events. For 1492/1613 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 100012 event pairs, 1979 based on Foata normal form. 29/9220 useless extension candidates. Maximal degree in co-relation 21294. Up to 3870 conditions per place. [2023-08-29 19:15:10,056 INFO L137 encePairwiseOnDemand]: 939/949 looper letters, 132 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2023-08-29 19:15:10,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 212 transitions, 963 flow [2023-08-29 19:15:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:15:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:15:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4441 transitions. [2023-08-29 19:15:10,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46796628029504744 [2023-08-29 19:15:10,067 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4441 transitions. [2023-08-29 19:15:10,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4441 transitions. [2023-08-29 19:15:10,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:10,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4441 transitions. [2023-08-29 19:15:10,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 444.1) internal successors, (4441), 10 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,104 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,104 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 288 flow. Second operand 10 states and 4441 transitions. [2023-08-29 19:15:10,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 212 transitions, 963 flow [2023-08-29 19:15:10,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 212 transitions, 963 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:10,121 INFO L231 Difference]: Finished difference. Result has 118 places, 117 transitions, 438 flow [2023-08-29 19:15:10,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=438, PETRI_PLACES=118, PETRI_TRANSITIONS=117} [2023-08-29 19:15:10,123 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -23 predicate places. [2023-08-29 19:15:10,123 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 117 transitions, 438 flow [2023-08-29 19:15:10,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 432.6666666666667) internal successors, (5192), 12 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:10,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:10,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 19:15:10,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:15:10,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:10,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash 833024825, now seen corresponding path program 1 times [2023-08-29 19:15:10,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:10,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533379147] [2023-08-29 19:15:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:10,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:10,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533379147] [2023-08-29 19:15:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533379147] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:15:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875510875] [2023-08-29 19:15:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:10,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:15:10,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:15:10,534 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:15:10,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 19:15:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:10,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 19:15:10,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:15:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:10,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:15:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:10,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875510875] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 19:15:10,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 19:15:10,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 19:15:10,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003556751] [2023-08-29 19:15:10,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 19:15:10,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 19:15:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:10,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 19:15:10,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:15:11,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 19:15:11,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 438 flow. Second operand has 12 states, 12 states have (on average 433.1666666666667) internal successors, (5198), 12 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:11,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:11,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 19:15:11,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:12,454 INFO L130 PetriNetUnfolder]: 3944/8623 cut-off events. [2023-08-29 19:15:12,454 INFO L131 PetriNetUnfolder]: For 1921/2120 co-relation queries the response was YES. [2023-08-29 19:15:12,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16142 conditions, 8623 events. 3944/8623 cut-off events. For 1921/2120 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 74969 event pairs, 1345 based on Foata normal form. 66/7168 useless extension candidates. Maximal degree in co-relation 16127. Up to 3219 conditions per place. [2023-08-29 19:15:12,505 INFO L137 encePairwiseOnDemand]: 939/949 looper letters, 112 selfloop transitions, 21 changer transitions 0/194 dead transitions. [2023-08-29 19:15:12,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 194 transitions, 909 flow [2023-08-29 19:15:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:15:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:15:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4441 transitions. [2023-08-29 19:15:12,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46796628029504744 [2023-08-29 19:15:12,517 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4441 transitions. [2023-08-29 19:15:12,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4441 transitions. [2023-08-29 19:15:12,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:12,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4441 transitions. [2023-08-29 19:15:12,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 444.1) internal successors, (4441), 10 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:12,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:12,544 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:12,544 INFO L175 Difference]: Start difference. First operand has 118 places, 117 transitions, 438 flow. Second operand 10 states and 4441 transitions. [2023-08-29 19:15:12,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 194 transitions, 909 flow [2023-08-29 19:15:12,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 194 transitions, 887 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:12,558 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 481 flow [2023-08-29 19:15:12,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-29 19:15:12,559 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -12 predicate places. [2023-08-29 19:15:12,559 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 481 flow [2023-08-29 19:15:12,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 433.1666666666667) internal successors, (5198), 12 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:12,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:12,561 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:12,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 19:15:12,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-29 19:15:12,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:12,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1189619696, now seen corresponding path program 2 times [2023-08-29 19:15:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:12,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424423057] [2023-08-29 19:15:12,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:12,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:13,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:13,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424423057] [2023-08-29 19:15:13,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424423057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:13,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:13,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:13,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222285127] [2023-08-29 19:15:13,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:13,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:13,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:13,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:13,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:13,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 949 [2023-08-29 19:15:13,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 429.5) internal successors, (2577), 6 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:13,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:13,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 949 [2023-08-29 19:15:13,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:16,379 INFO L130 PetriNetUnfolder]: 11834/19861 cut-off events. [2023-08-29 19:15:16,379 INFO L131 PetriNetUnfolder]: For 9325/9745 co-relation queries the response was YES. [2023-08-29 19:15:16,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46281 conditions, 19861 events. 11834/19861 cut-off events. For 9325/9745 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 154800 event pairs, 2224 based on Foata normal form. 52/16967 useless extension candidates. Maximal degree in co-relation 46263. Up to 8760 conditions per place. [2023-08-29 19:15:16,519 INFO L137 encePairwiseOnDemand]: 933/949 looper letters, 119 selfloop transitions, 33 changer transitions 0/203 dead transitions. [2023-08-29 19:15:16,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 203 transitions, 1059 flow [2023-08-29 19:15:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:15:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:15:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2677 transitions. [2023-08-29 19:15:16,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4701440112399016 [2023-08-29 19:15:16,527 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2677 transitions. [2023-08-29 19:15:16,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2677 transitions. [2023-08-29 19:15:16,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:16,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2677 transitions. [2023-08-29 19:15:16,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 446.1666666666667) internal successors, (2677), 6 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:16,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:16,542 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:16,542 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 481 flow. Second operand 6 states and 2677 transitions. [2023-08-29 19:15:16,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 203 transitions, 1059 flow [2023-08-29 19:15:16,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 203 transitions, 1038 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 19:15:16,664 INFO L231 Difference]: Finished difference. Result has 136 places, 152 transitions, 766 flow [2023-08-29 19:15:16,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=136, PETRI_TRANSITIONS=152} [2023-08-29 19:15:16,666 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -5 predicate places. [2023-08-29 19:15:16,666 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 152 transitions, 766 flow [2023-08-29 19:15:16,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.5) internal successors, (2577), 6 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:16,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:16,667 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:16,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 19:15:16,667 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:16,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:16,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1776508583, now seen corresponding path program 1 times [2023-08-29 19:15:16,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:16,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492650766] [2023-08-29 19:15:16,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:16,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:16,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:16,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:16,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492650766] [2023-08-29 19:15:16,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492650766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:16,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:16,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:16,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983916323] [2023-08-29 19:15:16,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:16,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:16,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:16,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:16,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:16,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 949 [2023-08-29 19:15:16,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 152 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:16,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:16,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 949 [2023-08-29 19:15:16,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:19,273 INFO L130 PetriNetUnfolder]: 12047/23688 cut-off events. [2023-08-29 19:15:19,273 INFO L131 PetriNetUnfolder]: For 21973/23919 co-relation queries the response was YES. [2023-08-29 19:15:19,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60309 conditions, 23688 events. 12047/23688 cut-off events. For 21973/23919 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 216867 event pairs, 2210 based on Foata normal form. 102/20698 useless extension candidates. Maximal degree in co-relation 60286. Up to 9117 conditions per place. [2023-08-29 19:15:19,580 INFO L137 encePairwiseOnDemand]: 945/949 looper letters, 124 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2023-08-29 19:15:19,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 200 transitions, 1338 flow [2023-08-29 19:15:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:19,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1399 transitions. [2023-08-29 19:15:19,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4913944502985599 [2023-08-29 19:15:19,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1399 transitions. [2023-08-29 19:15:19,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1399 transitions. [2023-08-29 19:15:19,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:19,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1399 transitions. [2023-08-29 19:15:19,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 466.3333333333333) internal successors, (1399), 3 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:19,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:19,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:19,590 INFO L175 Difference]: Start difference. First operand has 136 places, 152 transitions, 766 flow. Second operand 3 states and 1399 transitions. [2023-08-29 19:15:19,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 200 transitions, 1338 flow [2023-08-29 19:15:19,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 200 transitions, 1338 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:19,690 INFO L231 Difference]: Finished difference. Result has 138 places, 155 transitions, 810 flow [2023-08-29 19:15:19,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=138, PETRI_TRANSITIONS=155} [2023-08-29 19:15:19,691 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -3 predicate places. [2023-08-29 19:15:19,691 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 155 transitions, 810 flow [2023-08-29 19:15:19,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:19,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:19,692 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:19,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 19:15:19,692 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:19,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -762799491, now seen corresponding path program 1 times [2023-08-29 19:15:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664034319] [2023-08-29 19:15:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:19,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:19,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:19,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664034319] [2023-08-29 19:15:19,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664034319] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:19,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:19,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:19,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386635022] [2023-08-29 19:15:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:19,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:19,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:19,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:19,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 949 [2023-08-29 19:15:19,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 155 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:19,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:19,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 949 [2023-08-29 19:15:19,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:22,495 INFO L130 PetriNetUnfolder]: 13053/24004 cut-off events. [2023-08-29 19:15:22,495 INFO L131 PetriNetUnfolder]: For 27770/29935 co-relation queries the response was YES. [2023-08-29 19:15:22,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63973 conditions, 24004 events. 13053/24004 cut-off events. For 27770/29935 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 208030 event pairs, 5272 based on Foata normal form. 118/21391 useless extension candidates. Maximal degree in co-relation 63949. Up to 16252 conditions per place. [2023-08-29 19:15:22,675 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 85 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2023-08-29 19:15:22,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 980 flow [2023-08-29 19:15:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:22,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1365 transitions. [2023-08-29 19:15:22,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4794520547945205 [2023-08-29 19:15:22,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1365 transitions. [2023-08-29 19:15:22,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1365 transitions. [2023-08-29 19:15:22,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:22,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1365 transitions. [2023-08-29 19:15:22,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:22,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:22,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:22,685 INFO L175 Difference]: Start difference. First operand has 138 places, 155 transitions, 810 flow. Second operand 3 states and 1365 transitions. [2023-08-29 19:15:22,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 980 flow [2023-08-29 19:15:22,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 153 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:22,789 INFO L231 Difference]: Finished difference. Result has 137 places, 153 transitions, 804 flow [2023-08-29 19:15:22,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=137, PETRI_TRANSITIONS=153} [2023-08-29 19:15:22,790 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -4 predicate places. [2023-08-29 19:15:22,790 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 153 transitions, 804 flow [2023-08-29 19:15:22,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:22,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:22,791 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:22,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 19:15:22,791 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:22,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:22,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1535335502, now seen corresponding path program 2 times [2023-08-29 19:15:22,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:22,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692630968] [2023-08-29 19:15:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:22,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:23,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:23,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692630968] [2023-08-29 19:15:23,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692630968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:23,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:23,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 19:15:23,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392764288] [2023-08-29 19:15:23,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:23,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 19:15:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 19:15:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-29 19:15:25,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 949 [2023-08-29 19:15:25,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 153 transitions, 804 flow. Second operand has 11 states, 11 states have (on average 423.8181818181818) internal successors, (4662), 11 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:25,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:25,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 949 [2023-08-29 19:15:25,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:29,441 INFO L130 PetriNetUnfolder]: 22244/33780 cut-off events. [2023-08-29 19:15:29,441 INFO L131 PetriNetUnfolder]: For 37833/42289 co-relation queries the response was YES. [2023-08-29 19:15:29,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96442 conditions, 33780 events. 22244/33780 cut-off events. For 37833/42289 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 246358 event pairs, 2231 based on Foata normal form. 1686/31596 useless extension candidates. Maximal degree in co-relation 96417. Up to 9892 conditions per place. [2023-08-29 19:15:29,720 INFO L137 encePairwiseOnDemand]: 943/949 looper letters, 218 selfloop transitions, 8 changer transitions 0/284 dead transitions. [2023-08-29 19:15:29,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 284 transitions, 1948 flow [2023-08-29 19:15:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 19:15:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 19:15:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3067 transitions. [2023-08-29 19:15:29,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616889959355713 [2023-08-29 19:15:29,725 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3067 transitions. [2023-08-29 19:15:29,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3067 transitions. [2023-08-29 19:15:29,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:29,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3067 transitions. [2023-08-29 19:15:29,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 438.14285714285717) internal successors, (3067), 7 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:29,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 949.0) internal successors, (7592), 8 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:29,736 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 949.0) internal successors, (7592), 8 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:29,736 INFO L175 Difference]: Start difference. First operand has 137 places, 153 transitions, 804 flow. Second operand 7 states and 3067 transitions. [2023-08-29 19:15:29,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 284 transitions, 1948 flow [2023-08-29 19:15:30,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 284 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 19:15:30,039 INFO L231 Difference]: Finished difference. Result has 140 places, 152 transitions, 807 flow [2023-08-29 19:15:30,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=807, PETRI_PLACES=140, PETRI_TRANSITIONS=152} [2023-08-29 19:15:30,040 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2023-08-29 19:15:30,040 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 152 transitions, 807 flow [2023-08-29 19:15:30,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 423.8181818181818) internal successors, (4662), 11 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:30,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:30,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:30,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 19:15:30,042 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:30,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:30,042 INFO L85 PathProgramCache]: Analyzing trace with hash 879521503, now seen corresponding path program 1 times [2023-08-29 19:15:30,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:30,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640918126] [2023-08-29 19:15:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:30,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:15:30,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:30,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640918126] [2023-08-29 19:15:30,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640918126] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:30,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:30,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952659309] [2023-08-29 19:15:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:30,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:30,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:30,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:31,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 19:15:31,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 152 transitions, 807 flow. Second operand has 6 states, 6 states have (on average 437.5) internal successors, (2625), 6 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:31,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:31,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 19:15:31,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:34,317 INFO L130 PetriNetUnfolder]: 13363/24568 cut-off events. [2023-08-29 19:15:34,317 INFO L131 PetriNetUnfolder]: For 27373/29559 co-relation queries the response was YES. [2023-08-29 19:15:34,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64879 conditions, 24568 events. 13363/24568 cut-off events. For 27373/29559 co-relation queries the response was YES. Maximal size of possible extension queue 758. Compared 213838 event pairs, 4730 based on Foata normal form. 158/21908 useless extension candidates. Maximal degree in co-relation 64855. Up to 15323 conditions per place. [2023-08-29 19:15:34,680 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 120 selfloop transitions, 13 changer transitions 0/194 dead transitions. [2023-08-29 19:15:34,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 194 transitions, 1230 flow [2023-08-29 19:15:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:15:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:15:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2680 transitions. [2023-08-29 19:15:34,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47067088162978576 [2023-08-29 19:15:34,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2680 transitions. [2023-08-29 19:15:34,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2680 transitions. [2023-08-29 19:15:34,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:34,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2680 transitions. [2023-08-29 19:15:34,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 446.6666666666667) internal successors, (2680), 6 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:34,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:34,692 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:34,692 INFO L175 Difference]: Start difference. First operand has 140 places, 152 transitions, 807 flow. Second operand 6 states and 2680 transitions. [2023-08-29 19:15:34,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 194 transitions, 1230 flow [2023-08-29 19:15:34,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 194 transitions, 1216 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:15:34,764 INFO L231 Difference]: Finished difference. Result has 145 places, 164 transitions, 919 flow [2023-08-29 19:15:34,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=145, PETRI_TRANSITIONS=164} [2023-08-29 19:15:34,765 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 4 predicate places. [2023-08-29 19:15:34,765 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 164 transitions, 919 flow [2023-08-29 19:15:34,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.5) internal successors, (2625), 6 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:34,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:34,766 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:34,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 19:15:34,766 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:34,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1444693734, now seen corresponding path program 1 times [2023-08-29 19:15:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:34,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160015192] [2023-08-29 19:15:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:34,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:36,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:36,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:36,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160015192] [2023-08-29 19:15:36,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160015192] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:36,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:36,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 19:15:36,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060334598] [2023-08-29 19:15:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:36,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 19:15:36,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 19:15:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-29 19:15:37,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 949 [2023-08-29 19:15:37,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 164 transitions, 919 flow. Second operand has 11 states, 11 states have (on average 417.6363636363636) internal successors, (4594), 11 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:37,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:37,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 949 [2023-08-29 19:15:37,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:44,221 INFO L130 PetriNetUnfolder]: 32738/53327 cut-off events. [2023-08-29 19:15:44,221 INFO L131 PetriNetUnfolder]: For 64807/71369 co-relation queries the response was YES. [2023-08-29 19:15:44,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148222 conditions, 53327 events. 32738/53327 cut-off events. For 64807/71369 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 437829 event pairs, 5722 based on Foata normal form. 247/47646 useless extension candidates. Maximal degree in co-relation 148194. Up to 22851 conditions per place. [2023-08-29 19:15:44,719 INFO L137 encePairwiseOnDemand]: 936/949 looper letters, 256 selfloop transitions, 62 changer transitions 0/373 dead transitions. [2023-08-29 19:15:44,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 373 transitions, 2924 flow [2023-08-29 19:15:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:15:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:15:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4300 transitions. [2023-08-29 19:15:44,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45310853530031614 [2023-08-29 19:15:44,724 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4300 transitions. [2023-08-29 19:15:44,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4300 transitions. [2023-08-29 19:15:44,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:44,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4300 transitions. [2023-08-29 19:15:44,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:44,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:44,735 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:44,735 INFO L175 Difference]: Start difference. First operand has 145 places, 164 transitions, 919 flow. Second operand 10 states and 4300 transitions. [2023-08-29 19:15:44,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 373 transitions, 2924 flow [2023-08-29 19:15:44,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 373 transitions, 2868 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:44,867 INFO L231 Difference]: Finished difference. Result has 158 places, 214 transitions, 1624 flow [2023-08-29 19:15:44,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1624, PETRI_PLACES=158, PETRI_TRANSITIONS=214} [2023-08-29 19:15:44,868 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 17 predicate places. [2023-08-29 19:15:44,868 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 214 transitions, 1624 flow [2023-08-29 19:15:44,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 417.6363636363636) internal successors, (4594), 11 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:44,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:44,869 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:44,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 19:15:44,869 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:44,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:44,870 INFO L85 PathProgramCache]: Analyzing trace with hash 652334830, now seen corresponding path program 2 times [2023-08-29 19:15:44,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:44,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140799679] [2023-08-29 19:15:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:46,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:46,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140799679] [2023-08-29 19:15:46,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140799679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:46,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:46,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 19:15:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216978080] [2023-08-29 19:15:46,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:46,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 19:15:46,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:46,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 19:15:46,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-29 19:15:47,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 949 [2023-08-29 19:15:47,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 214 transitions, 1624 flow. Second operand has 9 states, 9 states have (on average 421.77777777777777) internal successors, (3796), 9 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:47,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:47,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 949 [2023-08-29 19:15:47,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:56,281 INFO L130 PetriNetUnfolder]: 35903/64641 cut-off events. [2023-08-29 19:15:56,281 INFO L131 PetriNetUnfolder]: For 147315/158317 co-relation queries the response was YES. [2023-08-29 19:15:56,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192514 conditions, 64641 events. 35903/64641 cut-off events. For 147315/158317 co-relation queries the response was YES. Maximal size of possible extension queue 1791. Compared 611728 event pairs, 9745 based on Foata normal form. 846/58458 useless extension candidates. Maximal degree in co-relation 192481. Up to 30662 conditions per place. [2023-08-29 19:15:57,072 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 217 selfloop transitions, 124 changer transitions 0/404 dead transitions. [2023-08-29 19:15:57,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 404 transitions, 3819 flow [2023-08-29 19:15:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:15:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:15:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4326 transitions. [2023-08-29 19:15:57,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4558482613277134 [2023-08-29 19:15:57,078 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4326 transitions. [2023-08-29 19:15:57,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4326 transitions. [2023-08-29 19:15:57,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:57,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4326 transitions. [2023-08-29 19:15:57,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 432.6) internal successors, (4326), 10 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:57,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:57,088 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:57,088 INFO L175 Difference]: Start difference. First operand has 158 places, 214 transitions, 1624 flow. Second operand 10 states and 4326 transitions. [2023-08-29 19:15:57,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 404 transitions, 3819 flow [2023-08-29 19:15:57,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 404 transitions, 3803 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:15:57,622 INFO L231 Difference]: Finished difference. Result has 166 places, 293 transitions, 3037 flow [2023-08-29 19:15:57,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=1608, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3037, PETRI_PLACES=166, PETRI_TRANSITIONS=293} [2023-08-29 19:15:57,623 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 25 predicate places. [2023-08-29 19:15:57,623 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 293 transitions, 3037 flow [2023-08-29 19:15:57,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 421.77777777777777) internal successors, (3796), 9 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:57,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:57,624 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:57,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 19:15:57,624 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:57,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1546112379, now seen corresponding path program 1 times [2023-08-29 19:15:57,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:57,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802757374] [2023-08-29 19:15:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:57,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:58,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:58,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802757374] [2023-08-29 19:15:58,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802757374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:58,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:58,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243315648] [2023-08-29 19:15:58,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:58,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:58,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:58,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:58,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:58,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 949 [2023-08-29 19:15:58,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 293 transitions, 3037 flow. Second operand has 6 states, 6 states have (on average 429.8333333333333) internal successors, (2579), 6 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:58,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:58,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 949 [2023-08-29 19:15:58,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:16:12,281 INFO L130 PetriNetUnfolder]: 62449/96179 cut-off events. [2023-08-29 19:16:12,282 INFO L131 PetriNetUnfolder]: For 349888/359283 co-relation queries the response was YES. [2023-08-29 19:16:13,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321894 conditions, 96179 events. 62449/96179 cut-off events. For 349888/359283 co-relation queries the response was YES. Maximal size of possible extension queue 2349. Compared 790468 event pairs, 14305 based on Foata normal form. 770/85666 useless extension candidates. Maximal degree in co-relation 321858. Up to 53457 conditions per place. [2023-08-29 19:16:13,458 INFO L137 encePairwiseOnDemand]: 935/949 looper letters, 268 selfloop transitions, 145 changer transitions 0/475 dead transitions. [2023-08-29 19:16:13,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 475 transitions, 5951 flow [2023-08-29 19:16:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:16:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:16:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2672 transitions. [2023-08-29 19:16:13,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46926589392342816 [2023-08-29 19:16:13,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2672 transitions. [2023-08-29 19:16:13,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2672 transitions. [2023-08-29 19:16:13,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:16:13,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2672 transitions. [2023-08-29 19:16:13,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 445.3333333333333) internal successors, (2672), 6 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:13,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:13,468 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:13,468 INFO L175 Difference]: Start difference. First operand has 166 places, 293 transitions, 3037 flow. Second operand 6 states and 2672 transitions. [2023-08-29 19:16:13,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 475 transitions, 5951 flow [2023-08-29 19:16:14,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 475 transitions, 5667 flow, removed 134 selfloop flow, removed 4 redundant places. [2023-08-29 19:16:14,782 INFO L231 Difference]: Finished difference. Result has 172 places, 427 transitions, 5381 flow [2023-08-29 19:16:14,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=2913, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5381, PETRI_PLACES=172, PETRI_TRANSITIONS=427} [2023-08-29 19:16:14,783 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 31 predicate places. [2023-08-29 19:16:14,783 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 427 transitions, 5381 flow [2023-08-29 19:16:14,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.8333333333333) internal successors, (2579), 6 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:14,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:16:14,783 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:16:14,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 19:16:14,783 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:16:14,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:16:14,784 INFO L85 PathProgramCache]: Analyzing trace with hash 996210625, now seen corresponding path program 3 times [2023-08-29 19:16:14,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:16:14,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647462154] [2023-08-29 19:16:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:16:14,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:16:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:16:15,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:16:15,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:16:15,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647462154] [2023-08-29 19:16:15,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647462154] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:16:15,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121560879] [2023-08-29 19:16:15,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 19:16:15,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:16:15,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:16:15,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:16:15,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 19:16:15,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-29 19:16:15,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 19:16:15,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 69 conjunts are in the unsatisfiable core [2023-08-29 19:16:15,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:16:15,452 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-08-29 19:16:15,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2023-08-29 19:16:15,500 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-29 19:16:15,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-29 19:16:15,539 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-29 19:16:15,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-29 19:16:15,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-08-29 19:16:15,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-29 19:16:15,717 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 19:16:15,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-29 19:16:15,765 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 19:16:15,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-29 19:16:15,854 INFO L321 Elim1Store]: treesize reduction 83, result has 36.6 percent of original size [2023-08-29 19:16:15,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 116 [2023-08-29 19:16:15,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 94 [2023-08-29 19:16:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-29 19:16:17,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 19:16:17,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121560879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:16:17,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 19:16:17,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 16 [2023-08-29 19:16:17,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135286043] [2023-08-29 19:16:17,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:16:17,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 19:16:17,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:16:17,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 19:16:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-08-29 19:16:19,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 949 [2023-08-29 19:16:19,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 427 transitions, 5381 flow. Second operand has 11 states, 11 states have (on average 415.8181818181818) internal successors, (4574), 11 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:19,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:16:19,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 949 [2023-08-29 19:16:19,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:16:33,939 INFO L130 PetriNetUnfolder]: 60736/94851 cut-off events. [2023-08-29 19:16:33,939 INFO L131 PetriNetUnfolder]: For 412757/423001 co-relation queries the response was YES. [2023-08-29 19:16:34,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343206 conditions, 94851 events. 60736/94851 cut-off events. For 412757/423001 co-relation queries the response was YES. Maximal size of possible extension queue 2418. Compared 796176 event pairs, 7301 based on Foata normal form. 710/85218 useless extension candidates. Maximal degree in co-relation 343166. Up to 51664 conditions per place. [2023-08-29 19:16:35,443 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 404 selfloop transitions, 38 changer transitions 0/504 dead transitions. [2023-08-29 19:16:35,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 504 transitions, 6930 flow [2023-08-29 19:16:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:16:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:16:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4234 transitions. [2023-08-29 19:16:35,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2023-08-29 19:16:35,449 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4234 transitions. [2023-08-29 19:16:35,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4234 transitions. [2023-08-29 19:16:35,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:16:35,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4234 transitions. [2023-08-29 19:16:35,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 423.4) internal successors, (4234), 10 states have internal predecessors, (4234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:35,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:35,460 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:35,460 INFO L175 Difference]: Start difference. First operand has 172 places, 427 transitions, 5381 flow. Second operand 10 states and 4234 transitions. [2023-08-29 19:16:35,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 504 transitions, 6930 flow [2023-08-29 19:16:39,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 504 transitions, 6714 flow, removed 108 selfloop flow, removed 0 redundant places. [2023-08-29 19:16:39,425 INFO L231 Difference]: Finished difference. Result has 179 places, 425 transitions, 5227 flow [2023-08-29 19:16:39,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5151, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5227, PETRI_PLACES=179, PETRI_TRANSITIONS=425} [2023-08-29 19:16:39,426 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 38 predicate places. [2023-08-29 19:16:39,426 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 425 transitions, 5227 flow [2023-08-29 19:16:39,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 415.8181818181818) internal successors, (4574), 11 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:39,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:16:39,427 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:16:39,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 19:16:39,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:16:39,627 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:16:39,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:16:39,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1734949736, now seen corresponding path program 1 times [2023-08-29 19:16:39,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:16:39,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647569357] [2023-08-29 19:16:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:16:39,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:16:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:16:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:16:39,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:16:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647569357] [2023-08-29 19:16:39,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647569357] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:16:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047447152] [2023-08-29 19:16:39,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:16:39,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:16:39,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:16:39,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:16:39,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 19:16:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:16:40,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 19:16:40,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:16:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:16:40,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:16:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:16:40,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047447152] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 19:16:40,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 19:16:40,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2023-08-29 19:16:40,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746074300] [2023-08-29 19:16:40,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:16:40,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:16:40,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:16:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:16:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:16:40,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 19:16:40,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 425 transitions, 5227 flow. Second operand has 6 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:40,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:16:40,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 19:16:40,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:16:50,944 INFO L130 PetriNetUnfolder]: 40447/71232 cut-off events. [2023-08-29 19:16:50,945 INFO L131 PetriNetUnfolder]: For 350175/361040 co-relation queries the response was YES. [2023-08-29 19:16:51,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263731 conditions, 71232 events. 40447/71232 cut-off events. For 350175/361040 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 660245 event pairs, 3812 based on Foata normal form. 698/64565 useless extension candidates. Maximal degree in co-relation 263690. Up to 43336 conditions per place. [2023-08-29 19:16:51,996 INFO L137 encePairwiseOnDemand]: 938/949 looper letters, 338 selfloop transitions, 32 changer transitions 15/460 dead transitions. [2023-08-29 19:16:51,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 460 transitions, 6155 flow [2023-08-29 19:16:51,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:16:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:16:51,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2662 transitions. [2023-08-29 19:16:51,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675096592904812 [2023-08-29 19:16:52,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2662 transitions. [2023-08-29 19:16:52,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2662 transitions. [2023-08-29 19:16:52,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:16:52,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2662 transitions. [2023-08-29 19:16:52,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 443.6666666666667) internal successors, (2662), 6 states have internal predecessors, (2662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:52,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:52,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:52,007 INFO L175 Difference]: Start difference. First operand has 179 places, 425 transitions, 5227 flow. Second operand 6 states and 2662 transitions. [2023-08-29 19:16:52,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 460 transitions, 6155 flow [2023-08-29 19:16:53,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 460 transitions, 6077 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-29 19:16:53,138 INFO L231 Difference]: Finished difference. Result has 177 places, 409 transitions, 5079 flow [2023-08-29 19:16:53,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5035, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5079, PETRI_PLACES=177, PETRI_TRANSITIONS=409} [2023-08-29 19:16:53,139 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 36 predicate places. [2023-08-29 19:16:53,139 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 409 transitions, 5079 flow [2023-08-29 19:16:53,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:53,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:16:53,139 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:16:53,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-29 19:16:53,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-29 19:16:53,340 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:16:53,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:16:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1752257351, now seen corresponding path program 1 times [2023-08-29 19:16:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:16:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906263827] [2023-08-29 19:16:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:16:53,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:16:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:16:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:16:54,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:16:54,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906263827] [2023-08-29 19:16:54,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906263827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:16:54,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:16:54,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 19:16:54,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827790545] [2023-08-29 19:16:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:16:54,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 19:16:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:16:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 19:16:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-29 19:16:55,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 949 [2023-08-29 19:16:55,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 409 transitions, 5079 flow. Second operand has 8 states, 8 states have (on average 424.25) internal successors, (3394), 8 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:55,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:16:55,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 949 [2023-08-29 19:16:55,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:17:07,406 INFO L130 PetriNetUnfolder]: 46242/79347 cut-off events. [2023-08-29 19:17:07,406 INFO L131 PetriNetUnfolder]: For 417319/436635 co-relation queries the response was YES. [2023-08-29 19:17:08,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296492 conditions, 79347 events. 46242/79347 cut-off events. For 417319/436635 co-relation queries the response was YES. Maximal size of possible extension queue 2249. Compared 732523 event pairs, 8202 based on Foata normal form. 1373/71942 useless extension candidates. Maximal degree in co-relation 296449. Up to 23686 conditions per place. [2023-08-29 19:17:08,600 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 475 selfloop transitions, 91 changer transitions 0/634 dead transitions. [2023-08-29 19:17:08,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 634 transitions, 8742 flow [2023-08-29 19:17:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 19:17:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 19:17:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3924 transitions. [2023-08-29 19:17:08,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594309799789252 [2023-08-29 19:17:08,604 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3924 transitions. [2023-08-29 19:17:08,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3924 transitions. [2023-08-29 19:17:08,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:17:08,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3924 transitions. [2023-08-29 19:17:08,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 436.0) internal successors, (3924), 9 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:08,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 949.0) internal successors, (9490), 10 states have internal predecessors, (9490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:08,615 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 949.0) internal successors, (9490), 10 states have internal predecessors, (9490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:08,615 INFO L175 Difference]: Start difference. First operand has 177 places, 409 transitions, 5079 flow. Second operand 9 states and 3924 transitions. [2023-08-29 19:17:08,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 634 transitions, 8742 flow [2023-08-29 19:17:09,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 634 transitions, 8679 flow, removed 14 selfloop flow, removed 5 redundant places. [2023-08-29 19:17:09,830 INFO L231 Difference]: Finished difference. Result has 179 places, 421 transitions, 5539 flow [2023-08-29 19:17:09,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5033, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5539, PETRI_PLACES=179, PETRI_TRANSITIONS=421} [2023-08-29 19:17:09,831 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 38 predicate places. [2023-08-29 19:17:09,831 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 421 transitions, 5539 flow [2023-08-29 19:17:09,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 424.25) internal successors, (3394), 8 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:09,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:17:09,832 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:17:09,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 19:17:09,832 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:17:09,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:17:09,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1305572275, now seen corresponding path program 2 times [2023-08-29 19:17:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:17:09,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972890023] [2023-08-29 19:17:09,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:17:09,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:17:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:17:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:17:11,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:17:11,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972890023] [2023-08-29 19:17:11,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972890023] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:17:11,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:17:11,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 19:17:11,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379804703] [2023-08-29 19:17:11,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:17:11,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 19:17:11,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:17:11,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 19:17:11,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-29 19:17:12,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 949 [2023-08-29 19:17:12,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 421 transitions, 5539 flow. Second operand has 9 states, 9 states have (on average 422.0) internal successors, (3798), 9 states have internal predecessors, (3798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:12,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:17:12,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 949 [2023-08-29 19:17:12,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:17:24,812 INFO L130 PetriNetUnfolder]: 45794/79810 cut-off events. [2023-08-29 19:17:24,812 INFO L131 PetriNetUnfolder]: For 417920/433365 co-relation queries the response was YES. [2023-08-29 19:17:25,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298624 conditions, 79810 events. 45794/79810 cut-off events. For 417920/433365 co-relation queries the response was YES. Maximal size of possible extension queue 2346. Compared 751446 event pairs, 5118 based on Foata normal form. 1103/72364 useless extension candidates. Maximal degree in co-relation 298580. Up to 33769 conditions per place. [2023-08-29 19:17:26,005 INFO L137 encePairwiseOnDemand]: 938/949 looper letters, 297 selfloop transitions, 200 changer transitions 0/565 dead transitions. [2023-08-29 19:17:26,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 565 transitions, 7736 flow [2023-08-29 19:17:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:17:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:17:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4332 transitions. [2023-08-29 19:17:26,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4564805057955743 [2023-08-29 19:17:26,008 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4332 transitions. [2023-08-29 19:17:26,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4332 transitions. [2023-08-29 19:17:26,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:17:26,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4332 transitions. [2023-08-29 19:17:26,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 433.2) internal successors, (4332), 10 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:26,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:26,020 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:26,020 INFO L175 Difference]: Start difference. First operand has 179 places, 421 transitions, 5539 flow. Second operand 10 states and 4332 transitions. [2023-08-29 19:17:26,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 565 transitions, 7736 flow [2023-08-29 19:17:27,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 565 transitions, 7701 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:17:27,410 INFO L231 Difference]: Finished difference. Result has 185 places, 436 transitions, 6342 flow [2023-08-29 19:17:27,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5498, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6342, PETRI_PLACES=185, PETRI_TRANSITIONS=436} [2023-08-29 19:17:27,411 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 44 predicate places. [2023-08-29 19:17:27,411 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 436 transitions, 6342 flow [2023-08-29 19:17:27,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 422.0) internal successors, (3798), 9 states have internal predecessors, (3798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:27,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:17:27,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:17:27,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 19:17:27,412 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:17:27,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:17:27,412 INFO L85 PathProgramCache]: Analyzing trace with hash 679886212, now seen corresponding path program 1 times [2023-08-29 19:17:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:17:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799355619] [2023-08-29 19:17:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:17:27,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:17:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:17:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:17:27,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:17:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799355619] [2023-08-29 19:17:27,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799355619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:17:27,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:17:27,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:17:27,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882559393] [2023-08-29 19:17:27,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:17:27,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:17:27,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:17:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:17:27,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:17:28,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 19:17:28,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 436 transitions, 6342 flow. Second operand has 6 states, 6 states have (on average 437.8333333333333) internal successors, (2627), 6 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:28,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:17:28,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 19:17:28,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand