./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-barrier.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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:35:16,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:35:16,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:35:16,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:35:16,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:35:16,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:35:16,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:35:16,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:35:16,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:35:16,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:35:16,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:35:16,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:35:16,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:35:16,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:35:16,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:35:16,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:35:16,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:35:16,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:35:16,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:35:16,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:35:16,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:35:16,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:35:16,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:35:16,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:35:16,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:35:16,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:35:16,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:35:16,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:35:16,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:35:16,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:35:16,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:35:16,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:35:16,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:35:16,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:35:16,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:35:16,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:35:16,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:35:16,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:35:16,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:35:16,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:35:16,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:35:16,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:35:16,782 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:35:16,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:35:16,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:35:16,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:35:16,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:35:16,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:35:16,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:35:16,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:35:16,785 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:35:16,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:35:16,786 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:35:16,786 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:35:16,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:35:16,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:35:16,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:35:16,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:35:16,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:35:16,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:35:16,788 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:35:16,788 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:35:16,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:35:16,788 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:35:16,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:35:16,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:35:16,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:35:16,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:35:16,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:35:16,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:35:16,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:35:16,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:35:16,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:35:16,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:35:16,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:35:16,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:35:16,791 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:35:16,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:35:16,791 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:35:16,791 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:35:17,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:35:17,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:35:17,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:35:17,110 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:35:17,110 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:35:17,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-08-29 03:35:18,348 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:35:18,523 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:35:18,524 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-08-29 03:35:18,531 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781b016a9/3fd12d1c3d3c4c7c8ba1122e9bee6de6/FLAGd5f1069ad [2023-08-29 03:35:18,543 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781b016a9/3fd12d1c3d3c4c7c8ba1122e9bee6de6 [2023-08-29 03:35:18,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:35:18,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:35:18,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:35:18,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:35:18,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:35:18,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617dcf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18, skipping insertion in model container [2023-08-29 03:35:18,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:35:18,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:35:18,825 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-08-29 03:35:18,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:35:18,839 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:35:18,899 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-08-29 03:35:18,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:35:18,907 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 03:35:18,907 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 03:35:18,913 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:35:18,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18 WrapperNode [2023-08-29 03:35:18,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:35:18,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:35:18,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:35:18,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:35:18,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,983 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 543 [2023-08-29 03:35:18,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:35:18,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:35:18,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:35:18,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:35:18,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:18,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:19,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:19,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:19,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:19,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:19,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:35:19,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:35:19,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:35:19,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:35:19,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (1/1) ... [2023-08-29 03:35:19,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:35:19,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:35:19,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:35:19,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:35:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:35:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:35:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:35:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:35:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:35:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:35:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:35:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:35:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:35:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:35:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-29 03:35:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-29 03:35:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:35:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-29 03:35:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-29 03:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-08-29 03:35:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-08-29 03:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 03:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 03:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:35:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:35:19,122 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:35:19,323 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:35:19,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:35:19,964 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:35:20,113 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:35:20,113 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 03:35:20,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:35:20 BoogieIcfgContainer [2023-08-29 03:35:20,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:35:20,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:35:20,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:35:20,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:35:20,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:35:18" (1/3) ... [2023-08-29 03:35:20,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dfc0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:35:20, skipping insertion in model container [2023-08-29 03:35:20,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:35:18" (2/3) ... [2023-08-29 03:35:20,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dfc0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:35:20, skipping insertion in model container [2023-08-29 03:35:20,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:35:20" (3/3) ... [2023-08-29 03:35:20,122 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-08-29 03:35:20,129 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:35:20,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:35:20,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-08-29 03:35:20,138 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:35:20,255 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-29 03:35:20,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 469 places, 464 transitions, 1000 flow [2023-08-29 03:35:20,421 INFO L130 PetriNetUnfolder]: 14/424 cut-off events. [2023-08-29 03:35:20,422 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:35:20,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 424 events. 14/424 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 738 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 358. Up to 3 conditions per place. [2023-08-29 03:35:20,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 469 places, 464 transitions, 1000 flow [2023-08-29 03:35:20,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 413 places, 406 transitions, 860 flow [2023-08-29 03:35:20,456 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:35:20,467 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 413 places, 406 transitions, 860 flow [2023-08-29 03:35:20,469 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 413 places, 406 transitions, 860 flow [2023-08-29 03:35:20,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 413 places, 406 transitions, 860 flow [2023-08-29 03:35:20,546 INFO L130 PetriNetUnfolder]: 12/406 cut-off events. [2023-08-29 03:35:20,547 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:35:20,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 406 events. 12/406 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 721 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 358. Up to 3 conditions per place. [2023-08-29 03:35:20,566 INFO L119 LiptonReduction]: Number of co-enabled transitions 33496 [2023-08-29 03:35:27,566 INFO L134 LiptonReduction]: Checked pairs total: 316381 [2023-08-29 03:35:27,567 INFO L136 LiptonReduction]: Total number of compositions: 364 [2023-08-29 03:35:27,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:35:27,584 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44dc6a49, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:35:27,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2023-08-29 03:35:27,586 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:35:27,586 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:35:27,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:35:27,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:35:27,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-08-29 03:35:27,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:35:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1919, now seen corresponding path program 1 times [2023-08-29 03:35:27,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:35:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553288001] [2023-08-29 03:35:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:35:27,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:35:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:35:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:35:27,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:35:27,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553288001] [2023-08-29 03:35:27,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553288001] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:35:27,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:35:27,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:35:27,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822668987] [2023-08-29 03:35:27,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:35:27,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:35:27,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:35:27,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:35:27,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:35:27,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 832 [2023-08-29 03:35:27,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 184 transitions, 416 flow. Second operand has 2 states, 2 states have (on average 371.5) internal successors, (743), 2 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:35:27,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:35:27,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 832 [2023-08-29 03:35:27,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:35:42,901 INFO L130 PetriNetUnfolder]: 120456/184777 cut-off events. [2023-08-29 03:35:42,901 INFO L131 PetriNetUnfolder]: For 16737/27683 co-relation queries the response was YES. [2023-08-29 03:35:43,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353499 conditions, 184777 events. 120456/184777 cut-off events. For 16737/27683 co-relation queries the response was YES. Maximal size of possible extension queue 4003. Compared 1497259 event pairs, 116424 based on Foata normal form. 1/175104 useless extension candidates. Maximal degree in co-relation 350963. Up to 152209 conditions per place. [2023-08-29 03:35:44,695 INFO L137 encePairwiseOnDemand]: 758/832 looper letters, 55 selfloop transitions, 0 changer transitions 1/110 dead transitions. [2023-08-29 03:35:44,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 110 transitions, 380 flow [2023-08-29 03:35:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:35:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:35:44,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 872 transitions. [2023-08-29 03:35:44,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5240384615384616 [2023-08-29 03:35:44,709 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 872 transitions. [2023-08-29 03:35:44,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 872 transitions. [2023-08-29 03:35:44,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:35:44,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 872 transitions. [2023-08-29 03:35:44,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 436.0) internal successors, (872), 2 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:35:44,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 832.0) internal successors, (2496), 3 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:35:44,727 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 832.0) internal successors, (2496), 3 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:35:44,728 INFO L175 Difference]: Start difference. First operand has 197 places, 184 transitions, 416 flow. Second operand 2 states and 872 transitions. [2023-08-29 03:35:44,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 110 transitions, 380 flow [2023-08-29 03:35:45,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 110 transitions, 348 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-29 03:35:45,229 INFO L231 Difference]: Finished difference. Result has 114 places, 109 transitions, 233 flow [2023-08-29 03:35:45,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=832, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=233, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2023-08-29 03:35:45,236 INFO L281 CegarLoopForPetriNet]: 197 programPoint places, -83 predicate places. [2023-08-29 03:35:45,236 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 233 flow [2023-08-29 03:35:45,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 371.5) internal successors, (743), 2 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:35:45,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:35:45,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:35:45,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:35:45,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-08-29 03:35:45,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:35:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1365985949, now seen corresponding path program 1 times [2023-08-29 03:35:45,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:35:45,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198275840] [2023-08-29 03:35:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:35:45,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:35:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:35:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:35:45,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:35:45,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198275840] [2023-08-29 03:35:45,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198275840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:35:45,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:35:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:35:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614279506] [2023-08-29 03:35:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:35:45,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:35:45,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:35:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:35:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:35:46,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 832 [2023-08-29 03:35:46,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 363.6666666666667) internal successors, (2182), 6 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:35:46,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:35:46,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 832 [2023-08-29 03:35:46,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:36:23,218 INFO L130 PetriNetUnfolder]: 457956/600353 cut-off events. [2023-08-29 03:36:23,218 INFO L131 PetriNetUnfolder]: For 14018/37568 co-relation queries the response was YES. [2023-08-29 03:36:24,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182346 conditions, 600353 events. 457956/600353 cut-off events. For 14018/37568 co-relation queries the response was YES. Maximal size of possible extension queue 10561. Compared 4157357 event pairs, 115900 based on Foata normal form. 331/580431 useless extension candidates. Maximal degree in co-relation 1182343. Up to 167040 conditions per place. [2023-08-29 03:36:26,901 INFO L137 encePairwiseOnDemand]: 827/832 looper letters, 248 selfloop transitions, 4 changer transitions 0/300 dead transitions. [2023-08-29 03:36:26,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 300 transitions, 1167 flow [2023-08-29 03:36:26,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:36:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:36:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2425 transitions. [2023-08-29 03:36:26,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857772435897436 [2023-08-29 03:36:26,907 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2425 transitions. [2023-08-29 03:36:26,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2425 transitions. [2023-08-29 03:36:26,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:36:26,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2425 transitions. [2023-08-29 03:36:26,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.1666666666667) internal successors, (2425), 6 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:36:26,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 832.0) internal successors, (5824), 7 states have internal predecessors, (5824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:36:26,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 832.0) internal successors, (5824), 7 states have internal predecessors, (5824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:36:26,926 INFO L175 Difference]: Start difference. First operand has 114 places, 109 transitions, 233 flow. Second operand 6 states and 2425 transitions. [2023-08-29 03:36:26,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 300 transitions, 1167 flow [2023-08-29 03:36:26,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 300 transitions, 1167 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:36:26,932 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 239 flow [2023-08-29 03:36:26,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=832, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2023-08-29 03:36:26,933 INFO L281 CegarLoopForPetriNet]: 197 programPoint places, -80 predicate places. [2023-08-29 03:36:26,933 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 239 flow [2023-08-29 03:36:26,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 363.6666666666667) internal successors, (2182), 6 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:36:26,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:36:26,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:36:26,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:36:26,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-08-29 03:36:26,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:36:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash 409710799, now seen corresponding path program 1 times [2023-08-29 03:36:26,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:36:26,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955560229] [2023-08-29 03:36:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:36:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:36:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:36:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:36:27,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:36:27,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955560229] [2023-08-29 03:36:27,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955560229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:36:27,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:36:27,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:36:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140228804] [2023-08-29 03:36:27,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:36:27,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:36:27,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:36:27,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:36:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:36:27,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 832 [2023-08-29 03:36:27,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 365.3333333333333) internal successors, (2192), 6 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:36:27,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:36:27,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 832 [2023-08-29 03:36:27,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:36:56,890 INFO L130 PetriNetUnfolder]: 390378/517665 cut-off events. [2023-08-29 03:36:56,890 INFO L131 PetriNetUnfolder]: For 6199/24795 co-relation queries the response was YES. [2023-08-29 03:36:58,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010170 conditions, 517665 events. 390378/517665 cut-off events. For 6199/24795 co-relation queries the response was YES. Maximal size of possible extension queue 8464. Compared 3530806 event pairs, 110355 based on Foata normal form. 266/503925 useless extension candidates. Maximal degree in co-relation 1010166. Up to 143278 conditions per place. [2023-08-29 03:37:00,393 INFO L137 encePairwiseOnDemand]: 826/832 looper letters, 212 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2023-08-29 03:37:00,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 263 transitions, 1011 flow [2023-08-29 03:37:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:37:00,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:37:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2396 transitions. [2023-08-29 03:37:00,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47996794871794873 [2023-08-29 03:37:00,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2396 transitions. [2023-08-29 03:37:00,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2396 transitions. [2023-08-29 03:37:00,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:37:00,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2396 transitions. [2023-08-29 03:37:00,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 399.3333333333333) internal successors, (2396), 6 states have internal predecessors, (2396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:37:00,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 832.0) internal successors, (5824), 7 states have internal predecessors, (5824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:37:00,415 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 832.0) internal successors, (5824), 7 states have internal predecessors, (5824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:37:00,415 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 239 flow. Second operand 6 states and 2396 transitions. [2023-08-29 03:37:00,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 263 transitions, 1011 flow [2023-08-29 03:37:00,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 263 transitions, 1004 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:37:00,441 INFO L231 Difference]: Finished difference. Result has 117 places, 107 transitions, 240 flow [2023-08-29 03:37:00,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=832, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=117, PETRI_TRANSITIONS=107} [2023-08-29 03:37:00,442 INFO L281 CegarLoopForPetriNet]: 197 programPoint places, -80 predicate places. [2023-08-29 03:37:00,443 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 107 transitions, 240 flow [2023-08-29 03:37:00,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 365.3333333333333) internal successors, (2192), 6 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:37:00,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:37:00,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:37:00,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:37:00,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-08-29 03:37:00,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:37:00,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1084678501, now seen corresponding path program 1 times [2023-08-29 03:37:00,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:37:00,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997963959] [2023-08-29 03:37:00,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:37:00,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:37:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:37:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:37:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:37:00,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997963959] [2023-08-29 03:37:00,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997963959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:37:00,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:37:00,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:37:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703591933] [2023-08-29 03:37:00,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:37:00,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:37:00,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:37:00,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:37:00,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:37:01,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 832 [2023-08-29 03:37:01,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 107 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 365.6666666666667) internal successors, (2194), 6 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:37:01,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:37:01,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 832 [2023-08-29 03:37:01,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand