./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:34:35,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:34:35,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:34:35,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:34:35,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:34:35,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:34:35,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:34:35,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:34:35,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:34:35,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:34:35,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:34:35,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:34:35,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:34:35,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:34:35,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:34:35,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:34:35,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:34:35,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:34:35,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:34:35,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:34:35,785 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:34:35,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:34:35,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:34:35,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:34:35,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:34:35,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:34:35,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:34:35,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:34:35,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:34:35,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:34:35,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:34:35,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:34:35,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:34:35,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:34:35,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:34:35,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:34:35,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:34:35,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:34:35,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:34:35,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:34:35,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:34:35,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:34:35,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:34:35,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:34:35,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:34:35,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:34:35,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:34:35,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:34:35,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:34:35,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:34:35,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:34:35,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:34:35,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:34:35,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:34:35,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:34:35,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:35,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:34:35,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:34:35,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:34:35,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:34:35,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:34:35,861 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:34:35,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:34:35,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:34:35,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-04-18 16:34:36,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:34:36,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:34:36,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:34:36,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:34:36,063 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:34:36,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-04-18 16:34:36,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e155add5/508f8b54c1bf4df7b2fce1c4bb54afe7/FLAGca421572e [2022-04-18 16:34:36,611 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:34:36,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-04-18 16:34:36,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e155add5/508f8b54c1bf4df7b2fce1c4bb54afe7/FLAGca421572e [2022-04-18 16:34:36,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e155add5/508f8b54c1bf4df7b2fce1c4bb54afe7 [2022-04-18 16:34:36,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:34:36,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:34:36,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:36,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:34:36,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:34:36,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcd84d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36, skipping insertion in model container [2022-04-18 16:34:36,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:34:36,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:34:36,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-04-18 16:34:36,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:36,795 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:34:36,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-04-18 16:34:36,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:36,836 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:34:36,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36 WrapperNode [2022-04-18 16:34:36,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:36,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:36,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:34:36,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:34:36,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,875 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 491 [2022-04-18 16:34:36,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:36,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:34:36,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:34:36,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:34:36,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:34:36,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:34:36,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:34:36,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:34:36,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (1/1) ... [2022-04-18 16:34:36,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:36,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:34:36,948 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) [2022-04-18 16:34:36,957 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 [2022-04-18 16:34:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:34:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:34:36,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:34:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:34:36,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:34:36,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:34:36,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:34:36,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:34:36,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-04-18 16:34:36,986 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:34:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:34:36,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:34:36,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:34:36,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:34:36,988 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:34:37,084 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:34:37,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:34:37,546 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:34:37,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:34:37,692 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:34:37,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:37 BoogieIcfgContainer [2022-04-18 16:34:37,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:34:37,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:34:37,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:34:37,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:34:37,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:34:36" (1/3) ... [2022-04-18 16:34:37,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ae9780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:37, skipping insertion in model container [2022-04-18 16:34:37,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:36" (2/3) ... [2022-04-18 16:34:37,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ae9780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:37, skipping insertion in model container [2022-04-18 16:34:37,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:37" (3/3) ... [2022-04-18 16:34:37,702 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-04-18 16:34:37,705 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:34:37,705 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:34:37,706 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-04-18 16:34:37,706 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:34:37,810 INFO L135 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-04-18 16:34:37,843 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:34:37,847 INFO L340 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 [2022-04-18 16:34:37,847 INFO L341 AbstractCegarLoop]: Starting to check reachability of 134 error locations. [2022-04-18 16:34:37,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 340 places, 329 transitions, 698 flow [2022-04-18 16:34:37,928 INFO L129 PetriNetUnfolder]: 5/324 cut-off events. [2022-04-18 16:34:37,929 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:34:37,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 324 events. 5/324 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 361 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 241. Up to 2 conditions per place. [2022-04-18 16:34:37,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 340 places, 329 transitions, 698 flow [2022-04-18 16:34:37,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 300 transitions, 630 flow [2022-04-18 16:34:37,955 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2022-04-18 16:34:37,955 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:34:37,955 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:37,955 INFO L255 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] [2022-04-18 16:34:37,956 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:37,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash 245957389, now seen corresponding path program 1 times [2022-04-18 16:34:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:37,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861946495] [2022-04-18 16:34:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:38,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:38,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861946495] [2022-04-18 16:34:38,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861946495] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:38,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:38,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:38,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485801368] [2022-04-18 16:34:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:38,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:38,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:38,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:38,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:38,172 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-04-18 16:34:38,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 300 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:38,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:38,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-04-18 16:34:38,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:42,309 INFO L129 PetriNetUnfolder]: 16567/24960 cut-off events. [2022-04-18 16:34:42,309 INFO L130 PetriNetUnfolder]: For 3360/4721 co-relation queries the response was YES. [2022-04-18 16:34:42,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49658 conditions, 24960 events. 16567/24960 cut-off events. For 3360/4721 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 166963 event pairs, 16564 based on Foata normal form. 1/24675 useless extension candidates. Maximal degree in co-relation 49011. Up to 22035 conditions per place. [2022-04-18 16:34:42,509 INFO L132 encePairwiseOnDemand]: 271/329 looper letters, 34 selfloop transitions, 2 changer transitions 1/244 dead transitions. [2022-04-18 16:34:42,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 244 transitions, 590 flow [2022-04-18 16:34:42,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2022-04-18 16:34:42,526 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8074974670719351 [2022-04-18 16:34:42,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2022-04-18 16:34:42,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2022-04-18 16:34:42,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:42,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2022-04-18 16:34:42,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:42,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:42,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:42,541 INFO L186 Difference]: Start difference. First operand has 312 places, 300 transitions, 630 flow. Second operand 3 states and 797 transitions. [2022-04-18 16:34:42,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 244 transitions, 590 flow [2022-04-18 16:34:42,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 244 transitions, 570 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-04-18 16:34:42,551 INFO L242 Difference]: Finished difference. Result has 249 places, 243 transitions, 500 flow [2022-04-18 16:34:42,553 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=249, PETRI_TRANSITIONS=243} [2022-04-18 16:34:42,555 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -63 predicate places. [2022-04-18 16:34:42,555 INFO L478 AbstractCegarLoop]: Abstraction has has 249 places, 243 transitions, 500 flow [2022-04-18 16:34:42,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:42,556 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:42,556 INFO L255 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, 1] [2022-04-18 16:34:42,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:34:42,556 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:42,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:42,557 INFO L85 PathProgramCache]: Analyzing trace with hash -509374528, now seen corresponding path program 1 times [2022-04-18 16:34:42,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:42,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223703204] [2022-04-18 16:34:42,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:42,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:42,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:42,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223703204] [2022-04-18 16:34:42,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223703204] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:42,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:42,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:42,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195480598] [2022-04-18 16:34:42,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:42,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:42,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:42,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:42,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:42,595 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-04-18 16:34:42,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 243 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:42,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:42,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-04-18 16:34:42,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:45,797 INFO L129 PetriNetUnfolder]: 16567/24958 cut-off events. [2022-04-18 16:34:45,799 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:34:45,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47936 conditions, 24958 events. 16567/24958 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167285 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47897. Up to 22035 conditions per place. [2022-04-18 16:34:45,939 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-04-18 16:34:45,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 242 transitions, 570 flow [2022-04-18 16:34:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:45,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:45,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-04-18 16:34:45,941 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-04-18 16:34:45,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-04-18 16:34:45,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-04-18 16:34:45,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:45,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-04-18 16:34:45,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:45,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:45,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:45,946 INFO L186 Difference]: Start difference. First operand has 249 places, 243 transitions, 500 flow. Second operand 3 states and 742 transitions. [2022-04-18 16:34:45,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 242 transitions, 570 flow [2022-04-18 16:34:45,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 242 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:45,950 INFO L242 Difference]: Finished difference. Result has 247 places, 242 transitions, 498 flow [2022-04-18 16:34:45,951 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2022-04-18 16:34:45,952 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -65 predicate places. [2022-04-18 16:34:45,952 INFO L478 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 498 flow [2022-04-18 16:34:45,952 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:45,952 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:45,953 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:45,953 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:34:45,953 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:45,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1456635719, now seen corresponding path program 1 times [2022-04-18 16:34:45,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:45,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738847368] [2022-04-18 16:34:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:46,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:46,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738847368] [2022-04-18 16:34:46,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738847368] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:46,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:46,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:46,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200148645] [2022-04-18 16:34:46,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:46,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:46,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:46,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:46,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:46,025 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-04-18 16:34:46,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:46,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:46,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-04-18 16:34:46,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:48,597 INFO L129 PetriNetUnfolder]: 16567/24957 cut-off events. [2022-04-18 16:34:48,597 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:34:48,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47935 conditions, 24957 events. 16567/24957 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167205 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47889. Up to 22035 conditions per place. [2022-04-18 16:34:48,800 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-04-18 16:34:48,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 241 transitions, 568 flow [2022-04-18 16:34:48,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:48,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-04-18 16:34:48,806 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-04-18 16:34:48,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-04-18 16:34:48,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-04-18 16:34:48,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:48,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-04-18 16:34:48,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,812 INFO L186 Difference]: Start difference. First operand has 247 places, 242 transitions, 498 flow. Second operand 3 states and 742 transitions. [2022-04-18 16:34:48,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 241 transitions, 568 flow [2022-04-18 16:34:48,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 241 transitions, 564 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:48,816 INFO L242 Difference]: Finished difference. Result has 246 places, 241 transitions, 496 flow [2022-04-18 16:34:48,816 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2022-04-18 16:34:48,818 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -66 predicate places. [2022-04-18 16:34:48,818 INFO L478 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 496 flow [2022-04-18 16:34:48,819 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,819 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:48,819 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:48,819 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:34:48,819 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:48,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2101871149, now seen corresponding path program 1 times [2022-04-18 16:34:48,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:48,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549488225] [2022-04-18 16:34:48,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:48,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:48,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:48,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549488225] [2022-04-18 16:34:48,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549488225] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:48,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:48,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115881874] [2022-04-18 16:34:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:48,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:48,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:48,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:48,887 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-04-18 16:34:48,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:48,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-04-18 16:34:48,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:51,194 INFO L129 PetriNetUnfolder]: 16567/24956 cut-off events. [2022-04-18 16:34:51,194 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:34:51,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24956 events. 16567/24956 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167296 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47881. Up to 22035 conditions per place. [2022-04-18 16:34:51,404 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-04-18 16:34:51,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 240 transitions, 566 flow [2022-04-18 16:34:51,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-04-18 16:34:51,406 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-04-18 16:34:51,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-04-18 16:34:51,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-04-18 16:34:51,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:51,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-04-18 16:34:51,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:51,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:51,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:51,412 INFO L186 Difference]: Start difference. First operand has 246 places, 241 transitions, 496 flow. Second operand 3 states and 742 transitions. [2022-04-18 16:34:51,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 240 transitions, 566 flow [2022-04-18 16:34:51,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:51,415 INFO L242 Difference]: Finished difference. Result has 245 places, 240 transitions, 494 flow [2022-04-18 16:34:51,416 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-04-18 16:34:51,416 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -67 predicate places. [2022-04-18 16:34:51,417 INFO L478 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 494 flow [2022-04-18 16:34:51,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:51,417 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:51,418 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:51,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:34:51,424 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:51,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:51,425 INFO L85 PathProgramCache]: Analyzing trace with hash -312874930, now seen corresponding path program 1 times [2022-04-18 16:34:51,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:51,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224870863] [2022-04-18 16:34:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:51,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:51,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:51,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224870863] [2022-04-18 16:34:51,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224870863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:51,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:51,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297178219] [2022-04-18 16:34:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:51,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:51,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:51,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:51,456 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-04-18 16:34:51,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:51,457 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:51,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-04-18 16:34:51,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:53,676 INFO L129 PetriNetUnfolder]: 16567/24955 cut-off events. [2022-04-18 16:34:53,676 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:34:53,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47933 conditions, 24955 events. 16567/24955 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167251 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47873. Up to 22035 conditions per place. [2022-04-18 16:34:53,852 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2022-04-18 16:34:53,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 239 transitions, 564 flow [2022-04-18 16:34:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:53,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-04-18 16:34:53,854 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-04-18 16:34:53,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-04-18 16:34:53,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-04-18 16:34:53,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:53,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-04-18 16:34:53,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:53,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:53,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:53,858 INFO L186 Difference]: Start difference. First operand has 245 places, 240 transitions, 494 flow. Second operand 3 states and 742 transitions. [2022-04-18 16:34:53,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 239 transitions, 564 flow [2022-04-18 16:34:53,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:53,862 INFO L242 Difference]: Finished difference. Result has 244 places, 239 transitions, 492 flow [2022-04-18 16:34:53,862 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2022-04-18 16:34:53,864 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -68 predicate places. [2022-04-18 16:34:53,864 INFO L478 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 492 flow [2022-04-18 16:34:53,865 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:53,865 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:53,865 INFO L255 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, 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] [2022-04-18 16:34:53,865 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:34:53,866 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:53,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1338480598, now seen corresponding path program 1 times [2022-04-18 16:34:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:53,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125164114] [2022-04-18 16:34:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:53,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:53,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:53,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125164114] [2022-04-18 16:34:53,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125164114] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:53,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:53,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970471304] [2022-04-18 16:34:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:53,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:53,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:53,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:53,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:53,901 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 329 [2022-04-18 16:34:53,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:53,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:53,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 329 [2022-04-18 16:34:53,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:56,257 INFO L129 PetriNetUnfolder]: 16567/24954 cut-off events. [2022-04-18 16:34:56,257 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:34:56,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47941 conditions, 24954 events. 16567/24954 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167281 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47874. Up to 22044 conditions per place. [2022-04-18 16:34:56,560 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 43 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2022-04-18 16:34:56,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 238 transitions, 580 flow [2022-04-18 16:34:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:56,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-04-18 16:34:56,563 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7335359675785208 [2022-04-18 16:34:56,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-04-18 16:34:56,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-04-18 16:34:56,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:56,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-04-18 16:34:56,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:56,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:56,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:56,567 INFO L186 Difference]: Start difference. First operand has 244 places, 239 transitions, 492 flow. Second operand 3 states and 724 transitions. [2022-04-18 16:34:56,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 238 transitions, 580 flow [2022-04-18 16:34:56,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 238 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:56,570 INFO L242 Difference]: Finished difference. Result has 243 places, 238 transitions, 490 flow [2022-04-18 16:34:56,570 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=243, PETRI_TRANSITIONS=238} [2022-04-18 16:34:56,571 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -69 predicate places. [2022-04-18 16:34:56,571 INFO L478 AbstractCegarLoop]: Abstraction has has 243 places, 238 transitions, 490 flow [2022-04-18 16:34:56,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:56,572 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:56,572 INFO L255 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, 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] [2022-04-18 16:34:56,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:34:56,572 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 515718548, now seen corresponding path program 1 times [2022-04-18 16:34:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203777559] [2022-04-18 16:34:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:56,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:56,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203777559] [2022-04-18 16:34:56,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203777559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:56,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:56,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:56,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746001160] [2022-04-18 16:34:56,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:56,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:56,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:56,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:56,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:56,601 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 329 [2022-04-18 16:34:56,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 238 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:56,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:56,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 329 [2022-04-18 16:34:56,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:58,809 INFO L129 PetriNetUnfolder]: 16567/24953 cut-off events. [2022-04-18 16:34:58,809 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:34:59,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24953 events. 16567/24953 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167291 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47860. Up to 22038 conditions per place. [2022-04-18 16:34:59,124 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 37 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2022-04-18 16:34:59,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 566 flow [2022-04-18 16:34:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2022-04-18 16:34:59,127 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.745694022289767 [2022-04-18 16:34:59,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2022-04-18 16:34:59,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2022-04-18 16:34:59,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:59,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2022-04-18 16:34:59,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:59,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:59,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:59,132 INFO L186 Difference]: Start difference. First operand has 243 places, 238 transitions, 490 flow. Second operand 3 states and 736 transitions. [2022-04-18 16:34:59,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 566 flow [2022-04-18 16:34:59,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:59,137 INFO L242 Difference]: Finished difference. Result has 242 places, 237 transitions, 488 flow [2022-04-18 16:34:59,137 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-04-18 16:34:59,138 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -70 predicate places. [2022-04-18 16:34:59,139 INFO L478 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 488 flow [2022-04-18 16:34:59,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:59,139 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:59,140 INFO L255 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, 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, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:59,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:34:59,140 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:34:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash 648192479, now seen corresponding path program 1 times [2022-04-18 16:34:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:59,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688324111] [2022-04-18 16:34:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:59,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:59,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:59,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688324111] [2022-04-18 16:34:59,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688324111] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:59,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:59,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:59,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541683782] [2022-04-18 16:34:59,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:59,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:59,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:59,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:59,191 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 329 [2022-04-18 16:34:59,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:59,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:59,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 329 [2022-04-18 16:34:59,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:01,407 INFO L129 PetriNetUnfolder]: 16567/24952 cut-off events. [2022-04-18 16:35:01,408 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:35:01,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47933 conditions, 24952 events. 16567/24952 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167246 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47852. Up to 22038 conditions per place. [2022-04-18 16:35:01,597 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 37 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2022-04-18 16:35:01,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 236 transitions, 564 flow [2022-04-18 16:35:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2022-04-18 16:35:01,600 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.745694022289767 [2022-04-18 16:35:01,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2022-04-18 16:35:01,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2022-04-18 16:35:01,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:01,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2022-04-18 16:35:01,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:01,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:01,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:01,603 INFO L186 Difference]: Start difference. First operand has 242 places, 237 transitions, 488 flow. Second operand 3 states and 736 transitions. [2022-04-18 16:35:01,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 236 transitions, 564 flow [2022-04-18 16:35:01,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 236 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:01,781 INFO L242 Difference]: Finished difference. Result has 241 places, 236 transitions, 486 flow [2022-04-18 16:35:01,782 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=241, PETRI_TRANSITIONS=236} [2022-04-18 16:35:01,782 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -71 predicate places. [2022-04-18 16:35:01,782 INFO L478 AbstractCegarLoop]: Abstraction has has 241 places, 236 transitions, 486 flow [2022-04-18 16:35:01,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:01,783 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:01,783 INFO L255 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:01,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:35:01,783 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:35:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1239500351, now seen corresponding path program 1 times [2022-04-18 16:35:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:01,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665578088] [2022-04-18 16:35:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:01,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:01,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:01,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665578088] [2022-04-18 16:35:01,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665578088] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:01,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:01,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50920070] [2022-04-18 16:35:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:01,810 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:01,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:01,811 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 329 [2022-04-18 16:35:01,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 236 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:01,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:01,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 329 [2022-04-18 16:35:01,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:03,929 INFO L129 PetriNetUnfolder]: 16567/24951 cut-off events. [2022-04-18 16:35:03,930 INFO L130 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-04-18 16:35:03,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24951 events. 16567/24951 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167344 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47846. Up to 22040 conditions per place. [2022-04-18 16:35:04,068 INFO L132 encePairwiseOnDemand]: 326/329 looper letters, 39 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2022-04-18 16:35:04,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 235 transitions, 566 flow [2022-04-18 16:35:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-04-18 16:35:04,071 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7386018237082067 [2022-04-18 16:35:04,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-04-18 16:35:04,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-04-18 16:35:04,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:04,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-04-18 16:35:04,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:04,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:04,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:04,074 INFO L186 Difference]: Start difference. First operand has 241 places, 236 transitions, 486 flow. Second operand 3 states and 729 transitions. [2022-04-18 16:35:04,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 235 transitions, 566 flow [2022-04-18 16:35:04,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:04,077 INFO L242 Difference]: Finished difference. Result has 240 places, 235 transitions, 484 flow [2022-04-18 16:35:04,078 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2022-04-18 16:35:04,078 INFO L335 CegarLoopForPetriNet]: 312 programPoint places, -72 predicate places. [2022-04-18 16:35:04,078 INFO L478 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 484 flow [2022-04-18 16:35:04,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:04,079 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:04,079 INFO L255 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:04,079 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:35:04,079 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:35:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1364418355, now seen corresponding path program 1 times [2022-04-18 16:35:04,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:04,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081086436] [2022-04-18 16:35:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:04,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:04,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:04,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081086436] [2022-04-18 16:35:04,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081086436] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:04,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:04,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111238743] [2022-04-18 16:35:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:04,160 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:04,161 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 329 [2022-04-18 16:35:04,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:04,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:04,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 329 [2022-04-18 16:35:04,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand