./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i --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/pthread-atomic/lamport-b.i -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 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 --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 [2023-08-28 17:52:09,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:52:09,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:52:09,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:52:09,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:52:09,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:52:09,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:52:09,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:52:09,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:52:09,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:52:09,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:52:09,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:52:09,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:52:09,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:52:09,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:52:09,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:52:09,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:52:09,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:52:09,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:52:09,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:52:09,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:52:09,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:52:09,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:52:09,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:52:09,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:52:09,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:52:09,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:52:09,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:52:09,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:52:09,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:52:09,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:52:09,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:52:09,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:52:09,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:52:09,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:52:09,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:52:09,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:52:09,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:52:09,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:52:09,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:52:09,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:52:09,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:52:09,766 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:52:09,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:52:09,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:52:09,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:52:09,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:52:09,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:52:09,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:52:09,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:52:09,770 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:52:09,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:52:09,770 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:52:09,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:52:09,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:52:09,771 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:52:09,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:52:09,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:52:09,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:52:09,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:52:09,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:09,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:52:09,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:52:09,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:52:09,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:52:09,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:52:09,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:52:09,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:52:09,773 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:52:09,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:52:09,774 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:52:09,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:52:10,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:52:10,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:52:10,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:52:10,100 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:52:10,100 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:52:10,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-28 17:52:11,170 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:52:11,461 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:52:11,461 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-28 17:52:11,474 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15ab2974e/a0692dd7c4284d109b5122546bb895f1/FLAGaf6fb8c1f [2023-08-28 17:52:11,485 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15ab2974e/a0692dd7c4284d109b5122546bb895f1 [2023-08-28 17:52:11,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:52:11,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:52:11,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:11,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:52:11,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:52:11,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:11,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98bc24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11, skipping insertion in model container [2023-08-28 17:52:11,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:11,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:52:11,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:52:11,822 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30203,30216] [2023-08-28 17:52:11,831 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30581,30594] [2023-08-28 17:52:11,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:11,852 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:52:11,896 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30203,30216] [2023-08-28 17:52:11,902 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30581,30594] [2023-08-28 17:52:11,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:11,951 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:52:11,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11 WrapperNode [2023-08-28 17:52:11,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:11,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:11,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:52:11,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:52:11,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:11,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,025 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-08-28 17:52:12,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:12,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:52:12,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:52:12,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:52:12,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:52:12,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:52:12,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:52:12,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:52:12,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (1/1) ... [2023-08-28 17:52:12,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:12,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:52:12,114 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) [2023-08-28 17:52:12,121 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 [2023-08-28 17:52:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:52:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-28 17:52:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-28 17:52:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 17:52:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 17:52:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:52:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:52:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:52:12,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:52:12,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:52:12,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:52:12,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:52:12,151 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:52:12,330 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:52:12,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:52:12,622 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:52:12,630 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:52:12,631 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-28 17:52:12,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:12 BoogieIcfgContainer [2023-08-28 17:52:12,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:52:12,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:52:12,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:52:12,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:52:12,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:52:11" (1/3) ... [2023-08-28 17:52:12,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ef80d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:12, skipping insertion in model container [2023-08-28 17:52:12,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:11" (2/3) ... [2023-08-28 17:52:12,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ef80d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:12, skipping insertion in model container [2023-08-28 17:52:12,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:12" (3/3) ... [2023-08-28 17:52:12,640 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2023-08-28 17:52:12,646 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:52:12,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:52:12,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-28 17:52:12,655 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:52:12,756 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:52:12,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 245 transitions, 506 flow [2023-08-28 17:52:12,927 INFO L130 PetriNetUnfolder]: 24/243 cut-off events. [2023-08-28 17:52:12,928 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:52:12,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 243 events. 24/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 738 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2023-08-28 17:52:12,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 245 transitions, 506 flow [2023-08-28 17:52:12,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 234 transitions, 477 flow [2023-08-28 17:52:12,954 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:52:12,975 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 234 transitions, 477 flow [2023-08-28 17:52:12,981 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 234 transitions, 477 flow [2023-08-28 17:52:12,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 234 transitions, 477 flow [2023-08-28 17:52:13,050 INFO L130 PetriNetUnfolder]: 24/234 cut-off events. [2023-08-28 17:52:13,050 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:52:13,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 234 events. 24/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 733 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2023-08-28 17:52:13,071 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2023-08-28 17:52:15,219 INFO L134 LiptonReduction]: Checked pairs total: 127584 [2023-08-28 17:52:15,219 INFO L136 LiptonReduction]: Total number of compositions: 97 [2023-08-28 17:52:15,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:52:15,237 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;@5dc391d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:52:15,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-28 17:52:15,241 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-28 17:52:15,242 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:52:15,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:15,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:52:15,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:15,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash 865377876, now seen corresponding path program 1 times [2023-08-28 17:52:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:15,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087017918] [2023-08-28 17:52:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:15,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:15,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087017918] [2023-08-28 17:52:15,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087017918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:15,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:15,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:15,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985065749] [2023-08-28 17:52:15,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:15,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:52:15,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:15,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:52:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:52:15,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 342 [2023-08-28 17:52:15,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 157 transitions, 323 flow. Second operand has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:15,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:15,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 342 [2023-08-28 17:52:15,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:15,835 INFO L130 PetriNetUnfolder]: 1416/4269 cut-off events. [2023-08-28 17:52:15,836 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-28 17:52:15,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6241 conditions, 4269 events. 1416/4269 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 35489 event pairs, 1080 based on Foata normal form. 269/3781 useless extension candidates. Maximal degree in co-relation 6064. Up to 1910 conditions per place. [2023-08-28 17:52:15,874 INFO L137 encePairwiseOnDemand]: 328/342 looper letters, 43 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2023-08-28 17:52:15,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 141 transitions, 377 flow [2023-08-28 17:52:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:52:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:52:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 511 transitions. [2023-08-28 17:52:15,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7470760233918129 [2023-08-28 17:52:15,887 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 511 transitions. [2023-08-28 17:52:15,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 511 transitions. [2023-08-28 17:52:15,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:15,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 511 transitions. [2023-08-28 17:52:15,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 255.5) internal successors, (511), 2 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:15,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:15,900 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:15,901 INFO L175 Difference]: Start difference. First operand has 140 places, 157 transitions, 323 flow. Second operand 2 states and 511 transitions. [2023-08-28 17:52:15,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 141 transitions, 377 flow [2023-08-28 17:52:15,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 372 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-28 17:52:15,909 INFO L231 Difference]: Finished difference. Result has 134 places, 141 transitions, 286 flow [2023-08-28 17:52:15,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=134, PETRI_TRANSITIONS=141} [2023-08-28 17:52:15,914 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -6 predicate places. [2023-08-28 17:52:15,914 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 141 transitions, 286 flow [2023-08-28 17:52:15,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:15,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:15,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-28 17:52:15,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:52:15,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:15,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1055108706, now seen corresponding path program 1 times [2023-08-28 17:52:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:15,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513604945] [2023-08-28 17:52:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:15,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513604945] [2023-08-28 17:52:15,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513604945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:15,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:15,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:15,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901408641] [2023-08-28 17:52:15,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:15,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:15,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:15,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:15,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:15,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 342 [2023-08-28 17:52:15,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 141 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:15,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:15,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 342 [2023-08-28 17:52:15,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:16,488 INFO L130 PetriNetUnfolder]: 1847/5060 cut-off events. [2023-08-28 17:52:16,488 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:52:16,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7686 conditions, 5060 events. 1847/5060 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 41197 event pairs, 1281 based on Foata normal form. 0/4170 useless extension candidates. Maximal degree in co-relation 7683. Up to 2345 conditions per place. [2023-08-28 17:52:16,515 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 68 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2023-08-28 17:52:16,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 480 flow [2023-08-28 17:52:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:16,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-28 17:52:16,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7085769980506823 [2023-08-28 17:52:16,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-28 17:52:16,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-28 17:52:16,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:16,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-28 17:52:16,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:16,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:16,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:16,525 INFO L175 Difference]: Start difference. First operand has 134 places, 141 transitions, 286 flow. Second operand 3 states and 727 transitions. [2023-08-28 17:52:16,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 480 flow [2023-08-28 17:52:16,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 165 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:52:16,529 INFO L231 Difference]: Finished difference. Result has 138 places, 144 transitions, 316 flow [2023-08-28 17:52:16,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=138, PETRI_TRANSITIONS=144} [2023-08-28 17:52:16,530 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -2 predicate places. [2023-08-28 17:52:16,530 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 144 transitions, 316 flow [2023-08-28 17:52:16,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:16,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:16,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:16,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:52:16,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:16,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1735749835, now seen corresponding path program 1 times [2023-08-28 17:52:16,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:16,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385489972] [2023-08-28 17:52:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:16,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:16,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:16,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385489972] [2023-08-28 17:52:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385489972] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:16,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:16,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:16,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737745597] [2023-08-28 17:52:16,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:16,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:16,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:16,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:16,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:16,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 342 [2023-08-28 17:52:16,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 144 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:16,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:16,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 342 [2023-08-28 17:52:16,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:17,050 INFO L130 PetriNetUnfolder]: 1870/5228 cut-off events. [2023-08-28 17:52:17,051 INFO L131 PetriNetUnfolder]: For 326/367 co-relation queries the response was YES. [2023-08-28 17:52:17,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8226 conditions, 5228 events. 1870/5228 cut-off events. For 326/367 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 43544 event pairs, 1258 based on Foata normal form. 0/4332 useless extension candidates. Maximal degree in co-relation 8221. Up to 2394 conditions per place. [2023-08-28 17:52:17,082 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 69 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2023-08-28 17:52:17,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 169 transitions, 523 flow [2023-08-28 17:52:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-08-28 17:52:17,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2023-08-28 17:52:17,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-08-28 17:52:17,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-08-28 17:52:17,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:17,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-08-28 17:52:17,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,092 INFO L175 Difference]: Start difference. First operand has 138 places, 144 transitions, 316 flow. Second operand 3 states and 726 transitions. [2023-08-28 17:52:17,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 169 transitions, 523 flow [2023-08-28 17:52:17,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 169 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:17,098 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 338 flow [2023-08-28 17:52:17,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=140, PETRI_TRANSITIONS=147} [2023-08-28 17:52:17,101 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2023-08-28 17:52:17,101 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 338 flow [2023-08-28 17:52:17,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:17,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:17,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:52:17,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:17,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2121366934, now seen corresponding path program 1 times [2023-08-28 17:52:17,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:17,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268891812] [2023-08-28 17:52:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:17,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:17,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:17,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268891812] [2023-08-28 17:52:17,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268891812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:17,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:17,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:17,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848410902] [2023-08-28 17:52:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:17,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:17,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:17,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:17,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:17,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 342 [2023-08-28 17:52:17,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 147 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:17,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 342 [2023-08-28 17:52:17,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:17,625 INFO L130 PetriNetUnfolder]: 1985/5685 cut-off events. [2023-08-28 17:52:17,626 INFO L131 PetriNetUnfolder]: For 474/543 co-relation queries the response was YES. [2023-08-28 17:52:17,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9043 conditions, 5685 events. 1985/5685 cut-off events. For 474/543 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 48740 event pairs, 1295 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 9037. Up to 2537 conditions per place. [2023-08-28 17:52:17,651 INFO L137 encePairwiseOnDemand]: 336/342 looper letters, 69 selfloop transitions, 5 changer transitions 0/172 dead transitions. [2023-08-28 17:52:17,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 172 transitions, 548 flow [2023-08-28 17:52:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-08-28 17:52:17,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2023-08-28 17:52:17,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-08-28 17:52:17,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-08-28 17:52:17,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:17,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-08-28 17:52:17,656 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) [2023-08-28 17:52:17,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,659 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 338 flow. Second operand 3 states and 729 transitions. [2023-08-28 17:52:17,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 172 transitions, 548 flow [2023-08-28 17:52:17,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 172 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:17,664 INFO L231 Difference]: Finished difference. Result has 142 places, 151 transitions, 368 flow [2023-08-28 17:52:17,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=142, PETRI_TRANSITIONS=151} [2023-08-28 17:52:17,665 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 2 predicate places. [2023-08-28 17:52:17,665 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 151 transitions, 368 flow [2023-08-28 17:52:17,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:17,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:17,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:52:17,666 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:17,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:17,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1475869747, now seen corresponding path program 1 times [2023-08-28 17:52:17,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:17,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987788035] [2023-08-28 17:52:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:17,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:17,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:17,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987788035] [2023-08-28 17:52:17,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987788035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:17,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:17,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:17,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672237730] [2023-08-28 17:52:17,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:17,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:17,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:17,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:17,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:17,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 342 [2023-08-28 17:52:17,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 151 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:17,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:17,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 342 [2023-08-28 17:52:17,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:18,750 INFO L130 PetriNetUnfolder]: 4917/12145 cut-off events. [2023-08-28 17:52:18,750 INFO L131 PetriNetUnfolder]: For 914/1067 co-relation queries the response was YES. [2023-08-28 17:52:18,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 12145 events. 4917/12145 cut-off events. For 914/1067 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 108414 event pairs, 1506 based on Foata normal form. 0/10585 useless extension candidates. Maximal degree in co-relation 21297. Up to 4429 conditions per place. [2023-08-28 17:52:18,823 INFO L137 encePairwiseOnDemand]: 314/342 looper letters, 111 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2023-08-28 17:52:18,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 212 transitions, 785 flow [2023-08-28 17:52:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:18,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-08-28 17:52:18,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2023-08-28 17:52:18,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-08-28 17:52:18,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-08-28 17:52:18,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:18,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-08-28 17:52:18,828 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) [2023-08-28 17:52:18,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:18,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:18,831 INFO L175 Difference]: Start difference. First operand has 142 places, 151 transitions, 368 flow. Second operand 3 states and 729 transitions. [2023-08-28 17:52:18,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 212 transitions, 785 flow [2023-08-28 17:52:18,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 212 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:18,838 INFO L231 Difference]: Finished difference. Result has 144 places, 172 transitions, 546 flow [2023-08-28 17:52:18,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=546, PETRI_PLACES=144, PETRI_TRANSITIONS=172} [2023-08-28 17:52:18,839 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 4 predicate places. [2023-08-28 17:52:18,839 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 172 transitions, 546 flow [2023-08-28 17:52:18,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:18,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:18,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:18,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:52:18,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:18,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1683730201, now seen corresponding path program 1 times [2023-08-28 17:52:18,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:18,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559779147] [2023-08-28 17:52:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:18,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:18,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559779147] [2023-08-28 17:52:18,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559779147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:18,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:18,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:18,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203413524] [2023-08-28 17:52:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:18,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:18,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:18,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 342 [2023-08-28 17:52:18,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 172 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:18,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:18,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 342 [2023-08-28 17:52:18,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:19,767 INFO L130 PetriNetUnfolder]: 3802/10948 cut-off events. [2023-08-28 17:52:19,768 INFO L131 PetriNetUnfolder]: For 2215/2454 co-relation queries the response was YES. [2023-08-28 17:52:19,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19915 conditions, 10948 events. 3802/10948 cut-off events. For 2215/2454 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 105577 event pairs, 2335 based on Foata normal form. 36/9424 useless extension candidates. Maximal degree in co-relation 19907. Up to 5049 conditions per place. [2023-08-28 17:52:19,837 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 79 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2023-08-28 17:52:19,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 200 transitions, 805 flow [2023-08-28 17:52:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-28 17:52:19,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7085769980506823 [2023-08-28 17:52:19,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-28 17:52:19,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-28 17:52:19,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:19,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-28 17:52:19,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:19,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:19,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:19,845 INFO L175 Difference]: Start difference. First operand has 144 places, 172 transitions, 546 flow. Second operand 3 states and 727 transitions. [2023-08-28 17:52:19,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 200 transitions, 805 flow [2023-08-28 17:52:19,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 200 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:19,854 INFO L231 Difference]: Finished difference. Result has 145 places, 175 transitions, 535 flow [2023-08-28 17:52:19,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=145, PETRI_TRANSITIONS=175} [2023-08-28 17:52:19,856 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2023-08-28 17:52:19,856 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 175 transitions, 535 flow [2023-08-28 17:52:19,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:19,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:19,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:19,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:52:19,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:19,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1741418017, now seen corresponding path program 1 times [2023-08-28 17:52:19,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:19,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406398010] [2023-08-28 17:52:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:19,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:19,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:19,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406398010] [2023-08-28 17:52:19,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406398010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:19,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:19,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:19,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197057965] [2023-08-28 17:52:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:19,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:19,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:19,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:19,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:19,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 342 [2023-08-28 17:52:19,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 175 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:19,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:19,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 342 [2023-08-28 17:52:19,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:20,746 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 37#L727-1true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,746 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-28 17:52:20,747 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-28 17:52:20,747 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-28 17:52:20,747 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-28 17:52:20,747 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([681] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [265#(= ~y~0 0), 130#L693-4true, Black: 252#true, 4#L727-5true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,748 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,748 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,748 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,748 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,748 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([682] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][188], [130#L693-4true, Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 144#L727-4true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,748 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,749 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,749 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,749 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,749 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 135#L727-2true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,749 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,749 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,750 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,750 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,773 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 37#L727-1true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,774 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,774 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-28 17:52:20,774 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,774 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-28 17:52:20,775 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([681] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [265#(= ~y~0 0), 130#L693-4true, Black: 252#true, 4#L727-5true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,775 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-28 17:52:20,775 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-28 17:52:20,775 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-28 17:52:20,775 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-28 17:52:20,776 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([682] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][188], [130#L693-4true, Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 144#L727-4true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,776 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-28 17:52:20,776 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-28 17:52:20,776 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-28 17:52:20,776 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-28 17:52:20,776 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, 135#L727-2true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-28 17:52:20,777 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-28 17:52:20,777 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-28 17:52:20,777 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-28 17:52:20,777 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-28 17:52:21,151 INFO L130 PetriNetUnfolder]: 5891/15039 cut-off events. [2023-08-28 17:52:21,151 INFO L131 PetriNetUnfolder]: For 2184/2683 co-relation queries the response was YES. [2023-08-28 17:52:21,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28900 conditions, 15039 events. 5891/15039 cut-off events. For 2184/2683 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 146404 event pairs, 2033 based on Foata normal form. 236/13461 useless extension candidates. Maximal degree in co-relation 28891. Up to 5300 conditions per place. [2023-08-28 17:52:21,261 INFO L137 encePairwiseOnDemand]: 323/342 looper letters, 119 selfloop transitions, 11 changer transitions 0/234 dead transitions. [2023-08-28 17:52:21,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 234 transitions, 970 flow [2023-08-28 17:52:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2023-08-28 17:52:21,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.723196881091618 [2023-08-28 17:52:21,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2023-08-28 17:52:21,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2023-08-28 17:52:21,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:21,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2023-08-28 17:52:21,266 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) [2023-08-28 17:52:21,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:21,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:21,269 INFO L175 Difference]: Start difference. First operand has 145 places, 175 transitions, 535 flow. Second operand 3 states and 742 transitions. [2023-08-28 17:52:21,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 234 transitions, 970 flow [2023-08-28 17:52:21,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 234 transitions, 963 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:21,278 INFO L231 Difference]: Finished difference. Result has 148 places, 185 transitions, 630 flow [2023-08-28 17:52:21,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=148, PETRI_TRANSITIONS=185} [2023-08-28 17:52:21,279 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2023-08-28 17:52:21,279 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 185 transitions, 630 flow [2023-08-28 17:52:21,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:21,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:21,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:21,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:52:21,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:21,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1741455529, now seen corresponding path program 1 times [2023-08-28 17:52:21,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:21,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14084591] [2023-08-28 17:52:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:21,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:21,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:21,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14084591] [2023-08-28 17:52:21,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14084591] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:21,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:21,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:21,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984245230] [2023-08-28 17:52:21,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:21,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:21,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:21,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:21,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:21,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 342 [2023-08-28 17:52:21,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 185 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:21,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:21,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 342 [2023-08-28 17:52:21,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:22,393 INFO L130 PetriNetUnfolder]: 5347/14337 cut-off events. [2023-08-28 17:52:22,393 INFO L131 PetriNetUnfolder]: For 3447/3866 co-relation queries the response was YES. [2023-08-28 17:52:22,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28989 conditions, 14337 events. 5347/14337 cut-off events. For 3447/3866 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 143785 event pairs, 3225 based on Foata normal form. 56/12820 useless extension candidates. Maximal degree in co-relation 28979. Up to 7639 conditions per place. [2023-08-28 17:52:22,494 INFO L137 encePairwiseOnDemand]: 333/342 looper letters, 91 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2023-08-28 17:52:22,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 218 transitions, 944 flow [2023-08-28 17:52:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2023-08-28 17:52:22,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6939571150097466 [2023-08-28 17:52:22,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2023-08-28 17:52:22,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2023-08-28 17:52:22,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:22,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2023-08-28 17:52:22,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:22,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:22,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:22,503 INFO L175 Difference]: Start difference. First operand has 148 places, 185 transitions, 630 flow. Second operand 3 states and 712 transitions. [2023-08-28 17:52:22,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 218 transitions, 944 flow [2023-08-28 17:52:22,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 218 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:22,515 INFO L231 Difference]: Finished difference. Result has 149 places, 197 transitions, 722 flow [2023-08-28 17:52:22,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=149, PETRI_TRANSITIONS=197} [2023-08-28 17:52:22,518 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2023-08-28 17:52:22,518 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 197 transitions, 722 flow [2023-08-28 17:52:22,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:22,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:22,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:22,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 17:52:22,519 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-28 17:52:22,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:22,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2035874648, now seen corresponding path program 1 times [2023-08-28 17:52:22,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:22,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111231449] [2023-08-28 17:52:22,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:52:22,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 17:52:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:52:22,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 17:52:22,583 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 17:52:22,584 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2023-08-28 17:52:22,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2023-08-28 17:52:22,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2023-08-28 17:52:22,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2023-08-28 17:52:22,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2023-08-28 17:52:22,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2023-08-28 17:52:22,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2023-08-28 17:52:22,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2023-08-28 17:52:22,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2023-08-28 17:52:22,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2023-08-28 17:52:22,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2023-08-28 17:52:22,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2023-08-28 17:52:22,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2023-08-28 17:52:22,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2023-08-28 17:52:22,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2023-08-28 17:52:22,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2023-08-28 17:52:22,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2023-08-28 17:52:22,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2023-08-28 17:52:22,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2023-08-28 17:52:22,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2023-08-28 17:52:22,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2023-08-28 17:52:22,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2023-08-28 17:52:22,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2023-08-28 17:52:22,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2023-08-28 17:52:22,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2023-08-28 17:52:22,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2023-08-28 17:52:22,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2023-08-28 17:52:22,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2023-08-28 17:52:22,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2023-08-28 17:52:22,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2023-08-28 17:52:22,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2023-08-28 17:52:22,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2023-08-28 17:52:22,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2023-08-28 17:52:22,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 64 remaining) [2023-08-28 17:52:22,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 64 remaining) [2023-08-28 17:52:22,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2023-08-28 17:52:22,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2023-08-28 17:52:22,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2023-08-28 17:52:22,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2023-08-28 17:52:22,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2023-08-28 17:52:22,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2023-08-28 17:52:22,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2023-08-28 17:52:22,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2023-08-28 17:52:22,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2023-08-28 17:52:22,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2023-08-28 17:52:22,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2023-08-28 17:52:22,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2023-08-28 17:52:22,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2023-08-28 17:52:22,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2023-08-28 17:52:22,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2023-08-28 17:52:22,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2023-08-28 17:52:22,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2023-08-28 17:52:22,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2023-08-28 17:52:22,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2023-08-28 17:52:22,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2023-08-28 17:52:22,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2023-08-28 17:52:22,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2023-08-28 17:52:22,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2023-08-28 17:52:22,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2023-08-28 17:52:22,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2023-08-28 17:52:22,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2023-08-28 17:52:22,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2023-08-28 17:52:22,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2023-08-28 17:52:22,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2023-08-28 17:52:22,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-28 17:52:22,606 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:22,615 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:52:22,615 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:52:22,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:52:22 BasicIcfg [2023-08-28 17:52:22,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:52:22,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:52:22,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:52:22,656 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:52:22,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:12" (3/4) ... [2023-08-28 17:52:22,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 17:52:22,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:52:22,659 INFO L158 Benchmark]: Toolchain (without parser) took 11171.34ms. Allocated memory was 83.9MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 60.7MB in the beginning and 950.3MB in the end (delta: -889.6MB). Peak memory consumption was 680.9MB. Max. memory is 16.1GB. [2023-08-28 17:52:22,659 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:22,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.83ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 40.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-28 17:52:22,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.23ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 62.0MB in the end (delta: -21.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-28 17:52:22,662 INFO L158 Benchmark]: Boogie Preprocessor took 56.53ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 60.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:22,662 INFO L158 Benchmark]: RCFGBuilder took 549.40ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 40.1MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-28 17:52:22,662 INFO L158 Benchmark]: TraceAbstraction took 10020.70ms. Allocated memory was 83.9MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 39.7MB in the beginning and 950.3MB in the end (delta: -910.6MB). Peak memory consumption was 658.3MB. Max. memory is 16.1GB. [2023-08-28 17:52:22,663 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 1.7GB. Free memory is still 950.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:22,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.83ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 40.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.23ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 62.0MB in the end (delta: -21.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.53ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 60.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.40ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 40.1MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10020.70ms. Allocated memory was 83.9MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 39.7MB in the beginning and 950.3MB in the end (delta: -910.6MB). Peak memory consumption was 658.3MB. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 1.7GB. Free memory is still 950.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 217 PlacesBefore, 140 PlacesAfterwards, 234 TransitionsBefore, 157 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 97 TotalNumberOfCompositions, 127584 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47122, independent: 45739, independent conditional: 0, independent unconditional: 45739, dependent: 1383, dependent conditional: 0, dependent unconditional: 1383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11235, independent: 11030, independent conditional: 0, independent unconditional: 11030, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 47122, independent: 34709, independent conditional: 0, independent unconditional: 34709, dependent: 1178, dependent conditional: 0, dependent unconditional: 1178, unknown: 11235, unknown conditional: 0, unknown unconditional: 11235] , Statistics on independence cache: Total cache size (in pairs): 3579, Positive cache size: 3435, Positive conditional cache size: 0, Positive unconditional cache size: 3435, Negative cache size: 144, Negative conditional cache size: 0, Negative unconditional cache size: 144, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [X=0, _={0:0}, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, x=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [X=0, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, x=0, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [X=0, _={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x=2, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x = 1=51, x = 2=52, x=2, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 392 locations, 64 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 264 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1009 IncrementalHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 48 mSDtfsCounter, 1009 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=722occurred in iteration=8, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-28 17:52:22,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE