./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 BEFORE --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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 11:27:11,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 11:27:11,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 11:27:11,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 11:27:11,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 11:27:11,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 11:27:11,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 11:27:11,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 11:27:11,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 11:27:11,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 11:27:11,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 11:27:11,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 11:27:11,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 11:27:11,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 11:27:11,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 11:27:11,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 11:27:11,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 11:27:11,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 11:27:11,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 11:27:11,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 11:27:11,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 11:27:11,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 11:27:11,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 11:27:11,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 11:27:11,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 11:27:11,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 11:27:11,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 11:27:11,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 11:27:11,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 11:27:11,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 11:27:11,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 11:27:11,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 11:27:11,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 11:27:11,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 11:27:11,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 11:27:11,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 11:27:11,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 11:27:11,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 11:27:11,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 11:27:11,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 11:27:11,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 11:27:11,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 11:27:11,696 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 11:27:11,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 11:27:11,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 11:27:11,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 11:27:11,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 11:27:11,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 11:27:11,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 11:27:11,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 11:27:11,699 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 11:27:11,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 11:27:11,700 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 11:27:11,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 11:27:11,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 11:27:11,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 11:27:11,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 11:27:11,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 11:27:11,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 11:27:11,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 11:27:11,701 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 11:27:11,702 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 11:27:11,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 11:27:11,702 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 11:27:11,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 11:27:11,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 11:27:11,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 11:27:11,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 11:27:11,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:27:11,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 11:27:11,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 11:27:11,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 11:27:11,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 11:27:11,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 11:27:11,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 11:27:11,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 11:27:11,704 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 11:27:11,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 11:27:11,705 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 11:27:11,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 11:27:11,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 11:27:12,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 11:27:12,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 11:27:12,024 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 11:27:12,025 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 11:27:12,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-31 11:27:13,173 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 11:27:13,441 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 11:27:13,442 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-31 11:27:13,459 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0ca3bba/5c9eda16a1ec4e50b164ff458a615194/FLAG903ace17c [2023-08-31 11:27:13,476 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0ca3bba/5c9eda16a1ec4e50b164ff458a615194 [2023-08-31 11:27:13,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 11:27:13,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 11:27:13,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 11:27:13,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 11:27:13,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 11:27:13,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170b9ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13, skipping insertion in model container [2023-08-31 11:27:13,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 11:27:13,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 11:27:13,829 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] [2023-08-31 11:27:13,837 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] [2023-08-31 11:27:13,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:27:13,856 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 11:27:13,898 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] [2023-08-31 11:27:13,901 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] [2023-08-31 11:27:13,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:27:13,947 INFO L208 MainTranslator]: Completed translation [2023-08-31 11:27:13,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13 WrapperNode [2023-08-31 11:27:13,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 11:27:13,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 11:27:13,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 11:27:13,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 11:27:13,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,982 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-08-31 11:27:13,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 11:27:13,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 11:27:13,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 11:27:13,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 11:27:13,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:13,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:14,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:14,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:14,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:14,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:14,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 11:27:14,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 11:27:14,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 11:27:14,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 11:27:14,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (1/1) ... [2023-08-31 11:27:14,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:27:14,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 11:27:14,054 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) [2023-08-31 11:27:14,076 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 [2023-08-31 11:27:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 11:27:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-31 11:27:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-31 11:27:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-31 11:27:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-31 11:27:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 11:27:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 11:27:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 11:27:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 11:27:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 11:27:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 11:27:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 11:27:14,105 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 11:27:14,218 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 11:27:14,220 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 11:27:14,642 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 11:27:14,651 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 11:27:14,654 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-31 11:27:14,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:27:14 BoogieIcfgContainer [2023-08-31 11:27:14,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 11:27:14,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 11:27:14,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 11:27:14,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 11:27:14,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:27:13" (1/3) ... [2023-08-31 11:27:14,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3f22d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:27:14, skipping insertion in model container [2023-08-31 11:27:14,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:13" (2/3) ... [2023-08-31 11:27:14,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3f22d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:27:14, skipping insertion in model container [2023-08-31 11:27:14,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:27:14" (3/3) ... [2023-08-31 11:27:14,665 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2023-08-31 11:27:14,671 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 11:27:14,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 11:27:14,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-31 11:27:14,680 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 11:27:14,785 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 11:27:14,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 245 transitions, 506 flow [2023-08-31 11:27:14,951 INFO L130 PetriNetUnfolder]: 24/243 cut-off events. [2023-08-31 11:27:14,951 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 11:27:14,960 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. [2023-08-31 11:27:14,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 245 transitions, 506 flow [2023-08-31 11:27:14,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 234 transitions, 477 flow [2023-08-31 11:27:14,974 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:27:14,986 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 234 transitions, 477 flow [2023-08-31 11:27:14,990 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 234 transitions, 477 flow [2023-08-31 11:27:14,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 234 transitions, 477 flow [2023-08-31 11:27:15,044 INFO L130 PetriNetUnfolder]: 24/234 cut-off events. [2023-08-31 11:27:15,044 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 11:27:15,047 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. [2023-08-31 11:27:15,058 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2023-08-31 11:27:17,135 INFO L134 LiptonReduction]: Checked pairs total: 127584 [2023-08-31 11:27:17,135 INFO L136 LiptonReduction]: Total number of compositions: 97 [2023-08-31 11:27:17,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 11:27:17,165 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;@19840683, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 11:27:17,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-31 11:27:17,181 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-31 11:27:17,181 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 11:27:17,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:17,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 11:27:17,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:17,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash 865377876, now seen corresponding path program 1 times [2023-08-31 11:27:17,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:17,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962487252] [2023-08-31 11:27:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:17,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:17,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962487252] [2023-08-31 11:27:17,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962487252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:17,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:17,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:17,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534508026] [2023-08-31 11:27:17,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:17,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 11:27:17,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:17,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 11:27:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 11:27:17,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 342 [2023-08-31 11:27:17,425 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) [2023-08-31 11:27:17,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:17,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 342 [2023-08-31 11:27:17,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:17,880 INFO L130 PetriNetUnfolder]: 1416/4269 cut-off events. [2023-08-31 11:27:17,881 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-31 11:27:17,890 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. [2023-08-31 11:27:17,909 INFO L137 encePairwiseOnDemand]: 328/342 looper letters, 43 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2023-08-31 11:27:17,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 141 transitions, 377 flow [2023-08-31 11:27:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 11:27:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 11:27:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 511 transitions. [2023-08-31 11:27:17,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7470760233918129 [2023-08-31 11:27:17,924 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 511 transitions. [2023-08-31 11:27:17,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 511 transitions. [2023-08-31 11:27:17,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:17,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 511 transitions. [2023-08-31 11:27:17,932 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) [2023-08-31 11:27:17,936 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) [2023-08-31 11:27:17,937 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) [2023-08-31 11:27:17,939 INFO L175 Difference]: Start difference. First operand has 140 places, 157 transitions, 323 flow. Second operand 2 states and 511 transitions. [2023-08-31 11:27:17,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 141 transitions, 377 flow [2023-08-31 11:27:17,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 372 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 11:27:17,946 INFO L231 Difference]: Finished difference. Result has 134 places, 141 transitions, 286 flow [2023-08-31 11:27:17,948 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} [2023-08-31 11:27:17,951 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -6 predicate places. [2023-08-31 11:27:17,951 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 141 transitions, 286 flow [2023-08-31 11:27:17,951 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) [2023-08-31 11:27:17,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:17,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 11:27:17,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 11:27:17,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:17,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:17,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1055108706, now seen corresponding path program 1 times [2023-08-31 11:27:17,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:17,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102295829] [2023-08-31 11:27:17,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:17,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:18,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102295829] [2023-08-31 11:27:18,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102295829] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:18,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:18,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:18,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347179642] [2023-08-31 11:27:18,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:18,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:18,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:18,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:18,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:18,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 342 [2023-08-31 11:27:18,047 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) [2023-08-31 11:27:18,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:18,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 342 [2023-08-31 11:27:18,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:18,468 INFO L130 PetriNetUnfolder]: 1847/5060 cut-off events. [2023-08-31 11:27:18,468 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 11:27:18,476 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. [2023-08-31 11:27:18,495 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 68 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2023-08-31 11:27:18,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 480 flow [2023-08-31 11:27:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-31 11:27:18,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7085769980506823 [2023-08-31 11:27:18,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-31 11:27:18,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-31 11:27:18,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:18,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-31 11:27:18,518 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) [2023-08-31 11:27:18,521 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) [2023-08-31 11:27:18,522 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) [2023-08-31 11:27:18,522 INFO L175 Difference]: Start difference. First operand has 134 places, 141 transitions, 286 flow. Second operand 3 states and 727 transitions. [2023-08-31 11:27:18,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 480 flow [2023-08-31 11:27:18,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 165 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 11:27:18,526 INFO L231 Difference]: Finished difference. Result has 138 places, 144 transitions, 316 flow [2023-08-31 11:27:18,526 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} [2023-08-31 11:27:18,527 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -2 predicate places. [2023-08-31 11:27:18,527 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 144 transitions, 316 flow [2023-08-31 11:27:18,528 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) [2023-08-31 11:27:18,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:18,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:18,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 11:27:18,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:18,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:18,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1735749835, now seen corresponding path program 1 times [2023-08-31 11:27:18,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:18,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422963874] [2023-08-31 11:27:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:18,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:18,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:18,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422963874] [2023-08-31 11:27:18,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422963874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:18,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:18,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:18,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259150918] [2023-08-31 11:27:18,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:18,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:18,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:18,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:18,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:18,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 342 [2023-08-31 11:27:18,599 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) [2023-08-31 11:27:18,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:18,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 342 [2023-08-31 11:27:18,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:19,061 INFO L130 PetriNetUnfolder]: 1870/5228 cut-off events. [2023-08-31 11:27:19,063 INFO L131 PetriNetUnfolder]: For 326/367 co-relation queries the response was YES. [2023-08-31 11:27:19,071 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. [2023-08-31 11:27:19,091 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 69 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2023-08-31 11:27:19,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 169 transitions, 523 flow [2023-08-31 11:27:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-08-31 11:27:19,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2023-08-31 11:27:19,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-08-31 11:27:19,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-08-31 11:27:19,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:19,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-08-31 11:27:19,097 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) [2023-08-31 11:27:19,099 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) [2023-08-31 11:27:19,100 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) [2023-08-31 11:27:19,100 INFO L175 Difference]: Start difference. First operand has 138 places, 144 transitions, 316 flow. Second operand 3 states and 726 transitions. [2023-08-31 11:27:19,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 169 transitions, 523 flow [2023-08-31 11:27:19,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 169 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:19,105 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 338 flow [2023-08-31 11:27:19,105 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} [2023-08-31 11:27:19,106 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2023-08-31 11:27:19,106 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 338 flow [2023-08-31 11:27:19,107 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) [2023-08-31 11:27:19,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:19,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:19,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 11:27:19,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:19,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:19,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2121366934, now seen corresponding path program 1 times [2023-08-31 11:27:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:19,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441401850] [2023-08-31 11:27:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:19,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:19,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:19,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:19,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441401850] [2023-08-31 11:27:19,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441401850] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:19,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:19,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:19,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253155520] [2023-08-31 11:27:19,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:19,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:19,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:19,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 342 [2023-08-31 11:27:19,161 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) [2023-08-31 11:27:19,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:19,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 342 [2023-08-31 11:27:19,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:19,759 INFO L130 PetriNetUnfolder]: 1985/5685 cut-off events. [2023-08-31 11:27:19,759 INFO L131 PetriNetUnfolder]: For 474/543 co-relation queries the response was YES. [2023-08-31 11:27:19,771 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. [2023-08-31 11:27:19,794 INFO L137 encePairwiseOnDemand]: 336/342 looper letters, 69 selfloop transitions, 5 changer transitions 0/172 dead transitions. [2023-08-31 11:27:19,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 172 transitions, 548 flow [2023-08-31 11:27:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-08-31 11:27:19,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2023-08-31 11:27:19,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-08-31 11:27:19,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-08-31 11:27:19,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:19,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-08-31 11:27:19,802 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) [2023-08-31 11:27:19,804 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) [2023-08-31 11:27:19,805 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) [2023-08-31 11:27:19,805 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 338 flow. Second operand 3 states and 729 transitions. [2023-08-31 11:27:19,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 172 transitions, 548 flow [2023-08-31 11:27:19,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 172 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:19,810 INFO L231 Difference]: Finished difference. Result has 142 places, 151 transitions, 368 flow [2023-08-31 11:27:19,810 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} [2023-08-31 11:27:19,811 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 2 predicate places. [2023-08-31 11:27:19,811 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 151 transitions, 368 flow [2023-08-31 11:27:19,811 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) [2023-08-31 11:27:19,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:19,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:19,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 11:27:19,812 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:19,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1475869747, now seen corresponding path program 1 times [2023-08-31 11:27:19,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:19,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204975589] [2023-08-31 11:27:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:19,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:19,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:19,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204975589] [2023-08-31 11:27:19,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204975589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:19,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:19,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:19,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425164748] [2023-08-31 11:27:19,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:19,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:19,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:19,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:19,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 342 [2023-08-31 11:27:19,895 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) [2023-08-31 11:27:19,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:19,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 342 [2023-08-31 11:27:19,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:20,910 INFO L130 PetriNetUnfolder]: 4917/12145 cut-off events. [2023-08-31 11:27:20,911 INFO L131 PetriNetUnfolder]: For 914/1067 co-relation queries the response was YES. [2023-08-31 11:27:20,939 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. [2023-08-31 11:27:20,980 INFO L137 encePairwiseOnDemand]: 314/342 looper letters, 111 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2023-08-31 11:27:20,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 212 transitions, 785 flow [2023-08-31 11:27:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:20,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-08-31 11:27:20,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2023-08-31 11:27:20,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-08-31 11:27:20,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-08-31 11:27:20,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:20,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-08-31 11:27:20,985 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) [2023-08-31 11:27:20,987 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) [2023-08-31 11:27:20,988 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) [2023-08-31 11:27:20,988 INFO L175 Difference]: Start difference. First operand has 142 places, 151 transitions, 368 flow. Second operand 3 states and 729 transitions. [2023-08-31 11:27:20,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 212 transitions, 785 flow [2023-08-31 11:27:20,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 212 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:20,995 INFO L231 Difference]: Finished difference. Result has 144 places, 172 transitions, 546 flow [2023-08-31 11:27:20,995 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} [2023-08-31 11:27:20,996 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 4 predicate places. [2023-08-31 11:27:20,996 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 172 transitions, 546 flow [2023-08-31 11:27:20,997 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) [2023-08-31 11:27:20,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:20,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:20,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 11:27:20,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:20,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:20,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1683730201, now seen corresponding path program 1 times [2023-08-31 11:27:20,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:20,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622705444] [2023-08-31 11:27:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:20,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:21,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:21,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622705444] [2023-08-31 11:27:21,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622705444] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:21,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:21,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:21,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958230455] [2023-08-31 11:27:21,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:21,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:21,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:21,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:21,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:21,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 342 [2023-08-31 11:27:21,038 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) [2023-08-31 11:27:21,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:21,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 342 [2023-08-31 11:27:21,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:21,863 INFO L130 PetriNetUnfolder]: 3802/10948 cut-off events. [2023-08-31 11:27:21,863 INFO L131 PetriNetUnfolder]: For 2215/2454 co-relation queries the response was YES. [2023-08-31 11:27:21,897 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. [2023-08-31 11:27:21,936 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 79 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2023-08-31 11:27:21,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 200 transitions, 805 flow [2023-08-31 11:27:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-31 11:27:21,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7085769980506823 [2023-08-31 11:27:21,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-31 11:27:21,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-31 11:27:21,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:21,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-31 11:27:21,942 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) [2023-08-31 11:27:21,944 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) [2023-08-31 11:27:21,944 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) [2023-08-31 11:27:21,945 INFO L175 Difference]: Start difference. First operand has 144 places, 172 transitions, 546 flow. Second operand 3 states and 727 transitions. [2023-08-31 11:27:21,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 200 transitions, 805 flow [2023-08-31 11:27:21,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 200 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:21,961 INFO L231 Difference]: Finished difference. Result has 145 places, 175 transitions, 535 flow [2023-08-31 11:27:21,962 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} [2023-08-31 11:27:21,965 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2023-08-31 11:27:21,965 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 175 transitions, 535 flow [2023-08-31 11:27:21,968 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) [2023-08-31 11:27:21,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:21,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:21,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 11:27:21,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:21,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1741418017, now seen corresponding path program 1 times [2023-08-31 11:27:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:21,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728214430] [2023-08-31 11:27:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:22,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:22,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728214430] [2023-08-31 11:27:22,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728214430] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:22,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:22,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:22,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021540338] [2023-08-31 11:27:22,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:22,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:22,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:22,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:22,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 342 [2023-08-31 11:27:22,029 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) [2023-08-31 11:27:22,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:22,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 342 [2023-08-31 11:27:22,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:22,737 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]) [2023-08-31 11:27:22,737 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-31 11:27:22,738 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-31 11:27:22,738 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-31 11:27:22,738 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-31 11:27:22,738 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([681] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [265#(= ~y~0 0), 130#L693-4true, Black: 252#true, 4#L727-5true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-31 11:27:22,738 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L381 tUnfolder$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]) [2023-08-31 11:27:22,739 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,739 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,740 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 135#L727-2true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-31 11:27:22,740 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,740 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,740 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,740 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,759 INFO L381 tUnfolder$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]) [2023-08-31 11:27:22,760 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,760 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-31 11:27:22,760 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,760 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-31 11:27:22,761 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([681] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [265#(= ~y~0 0), 130#L693-4true, Black: 252#true, 4#L727-5true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-31 11:27:22,761 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-31 11:27:22,761 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-31 11:27:22,761 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-31 11:27:22,761 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-31 11:27:22,761 INFO L381 tUnfolder$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]) [2023-08-31 11:27:22,762 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-31 11:27:22,762 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-31 11:27:22,762 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-31 11:27:22,762 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-31 11:27:22,763 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, 135#L727-2true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-31 11:27:22,763 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-31 11:27:22,763 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-31 11:27:22,763 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-31 11:27:22,763 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-31 11:27:23,133 INFO L130 PetriNetUnfolder]: 5891/15039 cut-off events. [2023-08-31 11:27:23,133 INFO L131 PetriNetUnfolder]: For 2184/2683 co-relation queries the response was YES. [2023-08-31 11:27:23,166 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. [2023-08-31 11:27:23,220 INFO L137 encePairwiseOnDemand]: 323/342 looper letters, 119 selfloop transitions, 11 changer transitions 0/234 dead transitions. [2023-08-31 11:27:23,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 234 transitions, 970 flow [2023-08-31 11:27:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2023-08-31 11:27:23,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.723196881091618 [2023-08-31 11:27:23,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2023-08-31 11:27:23,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2023-08-31 11:27:23,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:23,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2023-08-31 11:27:23,225 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) [2023-08-31 11:27:23,227 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) [2023-08-31 11:27:23,228 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) [2023-08-31 11:27:23,228 INFO L175 Difference]: Start difference. First operand has 145 places, 175 transitions, 535 flow. Second operand 3 states and 742 transitions. [2023-08-31 11:27:23,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 234 transitions, 970 flow [2023-08-31 11:27:23,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 234 transitions, 963 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 11:27:23,237 INFO L231 Difference]: Finished difference. Result has 148 places, 185 transitions, 630 flow [2023-08-31 11:27:23,237 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} [2023-08-31 11:27:23,238 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2023-08-31 11:27:23,238 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 185 transitions, 630 flow [2023-08-31 11:27:23,238 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) [2023-08-31 11:27:23,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:23,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:23,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 11:27:23,239 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:23,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1741455529, now seen corresponding path program 1 times [2023-08-31 11:27:23,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:23,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072673189] [2023-08-31 11:27:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:23,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:23,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072673189] [2023-08-31 11:27:23,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072673189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:23,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:23,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:23,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748666369] [2023-08-31 11:27:23,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:23,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:23,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:23,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 342 [2023-08-31 11:27:23,303 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) [2023-08-31 11:27:23,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:23,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 342 [2023-08-31 11:27:23,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:24,254 INFO L130 PetriNetUnfolder]: 5347/14337 cut-off events. [2023-08-31 11:27:24,254 INFO L131 PetriNetUnfolder]: For 3447/3866 co-relation queries the response was YES. [2023-08-31 11:27:24,295 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. [2023-08-31 11:27:24,349 INFO L137 encePairwiseOnDemand]: 333/342 looper letters, 91 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2023-08-31 11:27:24,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 218 transitions, 944 flow [2023-08-31 11:27:24,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2023-08-31 11:27:24,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6939571150097466 [2023-08-31 11:27:24,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2023-08-31 11:27:24,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2023-08-31 11:27:24,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:24,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2023-08-31 11:27:24,354 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) [2023-08-31 11:27:24,356 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) [2023-08-31 11:27:24,357 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) [2023-08-31 11:27:24,357 INFO L175 Difference]: Start difference. First operand has 148 places, 185 transitions, 630 flow. Second operand 3 states and 712 transitions. [2023-08-31 11:27:24,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 218 transitions, 944 flow [2023-08-31 11:27:24,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 218 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:24,370 INFO L231 Difference]: Finished difference. Result has 149 places, 197 transitions, 722 flow [2023-08-31 11:27:24,370 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} [2023-08-31 11:27:24,371 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2023-08-31 11:27:24,371 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 197 transitions, 722 flow [2023-08-31 11:27:24,371 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) [2023-08-31 11:27:24,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:24,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:24,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 11:27:24,372 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 11:27:24,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2035874648, now seen corresponding path program 1 times [2023-08-31 11:27:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:24,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859614662] [2023-08-31 11:27:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:27:24,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 11:27:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:27:24,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 11:27:24,421 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 11:27:24,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2023-08-31 11:27:24,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2023-08-31 11:27:24,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2023-08-31 11:27:24,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2023-08-31 11:27:24,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2023-08-31 11:27:24,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2023-08-31 11:27:24,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2023-08-31 11:27:24,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2023-08-31 11:27:24,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2023-08-31 11:27:24,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2023-08-31 11:27:24,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2023-08-31 11:27:24,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2023-08-31 11:27:24,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2023-08-31 11:27:24,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2023-08-31 11:27:24,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2023-08-31 11:27:24,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2023-08-31 11:27:24,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2023-08-31 11:27:24,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2023-08-31 11:27:24,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2023-08-31 11:27:24,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2023-08-31 11:27:24,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2023-08-31 11:27:24,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2023-08-31 11:27:24,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2023-08-31 11:27:24,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2023-08-31 11:27:24,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2023-08-31 11:27:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2023-08-31 11:27:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2023-08-31 11:27:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2023-08-31 11:27:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2023-08-31 11:27:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2023-08-31 11:27:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2023-08-31 11:27:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2023-08-31 11:27:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2023-08-31 11:27:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 64 remaining) [2023-08-31 11:27:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 64 remaining) [2023-08-31 11:27:24,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2023-08-31 11:27:24,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2023-08-31 11:27:24,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2023-08-31 11:27:24,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2023-08-31 11:27:24,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2023-08-31 11:27:24,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2023-08-31 11:27:24,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2023-08-31 11:27:24,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2023-08-31 11:27:24,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2023-08-31 11:27:24,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2023-08-31 11:27:24,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2023-08-31 11:27:24,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2023-08-31 11:27:24,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2023-08-31 11:27:24,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2023-08-31 11:27:24,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2023-08-31 11:27:24,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2023-08-31 11:27:24,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2023-08-31 11:27:24,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2023-08-31 11:27:24,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2023-08-31 11:27:24,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2023-08-31 11:27:24,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2023-08-31 11:27:24,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2023-08-31 11:27:24,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2023-08-31 11:27:24,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2023-08-31 11:27:24,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2023-08-31 11:27:24,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2023-08-31 11:27:24,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2023-08-31 11:27:24,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2023-08-31 11:27:24,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2023-08-31 11:27:24,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 11:27:24,448 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:24,459 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 11:27:24,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 11:27:24,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 11:27:24 BasicIcfg [2023-08-31 11:27:24,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 11:27:24,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 11:27:24,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 11:27:24,519 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 11:27:24,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:27:14" (3/4) ... [2023-08-31 11:27:24,522 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 11:27:24,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 11:27:24,523 INFO L158 Benchmark]: Toolchain (without parser) took 11043.01ms. Allocated memory was 73.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 49.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 198.0MB. Max. memory is 16.1GB. [2023-08-31 11:27:24,523 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:27:24,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.96ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.2MB in the beginning and 64.3MB in the end (delta: -15.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-08-31 11:27:24,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.12ms. Allocated memory is still 90.2MB. Free memory was 64.3MB in the beginning and 62.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:27:24,524 INFO L158 Benchmark]: Boogie Preprocessor took 28.62ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 60.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:27:24,524 INFO L158 Benchmark]: RCFGBuilder took 644.86ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 64.7MB in the end (delta: -4.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-08-31 11:27:24,524 INFO L158 Benchmark]: TraceAbstraction took 9859.69ms. Allocated memory was 90.2MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 64.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 643.4MB. Max. memory is 16.1GB. [2023-08-31 11:27:24,525 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:27:24,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.96ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.2MB in the beginning and 64.3MB in the end (delta: -15.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.12ms. Allocated memory is still 90.2MB. Free memory was 64.3MB in the beginning and 62.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.62ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 60.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 644.86ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 64.7MB in the end (delta: -4.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9859.69ms. Allocated memory was 90.2MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 64.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 643.4MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 1.0MB). 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: 2.1s, 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: 9.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 0.8s 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! [2023-08-31 11:27:24,565 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