./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:53:32,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:53:32,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:53:32,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:53:32,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:53:32,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:53:32,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:53:32,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:53:32,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:53:32,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:53:32,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:53:32,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:53:32,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:53:32,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:53:32,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:53:32,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:53:32,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:53:32,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:53:32,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:53:32,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:53:32,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:53:32,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:53:32,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:53:32,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:53:32,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:53:32,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:53:32,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:53:32,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:53:32,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:53:32,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:53:32,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:53:32,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:53:32,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:53:32,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:53:32,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:53:32,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:53:32,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:53:32,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:53:32,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:53:32,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:53:32,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:53:32,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:53:32,410 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:53:32,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:53:32,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:53:32,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:53:32,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:53:32,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:53:32,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:53:32,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:53:32,413 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:53:32,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:53:32,414 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:53:32,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:53:32,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:53:32,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:53:32,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:53:32,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:53:32,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:53:32,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:53:32,416 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:53:32,416 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:53:32,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:53:32,416 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:53:32,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:53:32,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:53:32,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:53:32,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:53:32,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:53:32,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:53:32,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:53:32,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:53:32,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:53:32,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:53:32,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:53:32,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:53:32,419 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:53:32,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:53:32,419 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:53:32,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:53:32,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:53:32,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:53:32,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:53:32,713 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:53:32,713 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:53:32,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-28 17:53:33,826 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:53:34,099 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:53:34,100 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-28 17:53:34,110 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a20b9b90/c3e29e80be814d81a5a0731f376281b7/FLAG5b3f96401 [2023-08-28 17:53:34,121 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a20b9b90/c3e29e80be814d81a5a0731f376281b7 [2023-08-28 17:53:34,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:53:34,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:53:34,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:53:34,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:53:34,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:53:34,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf208d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34, skipping insertion in model container [2023-08-28 17:53:34,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:53:34,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:53:34,541 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-ext/04_incdec_cas.i[30285,30298] [2023-08-28 17:53:34,550 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-ext/04_incdec_cas.i[30729,30742] [2023-08-28 17:53:34,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:53:34,568 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:53:34,623 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-ext/04_incdec_cas.i[30285,30298] [2023-08-28 17:53:34,629 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-ext/04_incdec_cas.i[30729,30742] [2023-08-28 17:53:34,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:53:34,713 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:53:34,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34 WrapperNode [2023-08-28 17:53:34,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:53:34,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:53:34,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:53:34,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:53:34,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,800 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 265 [2023-08-28 17:53:34,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:53:34,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:53:34,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:53:34,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:53:34,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:53:34,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:53:34,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:53:34,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:53:34,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (1/1) ... [2023-08-28 17:53:34,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:53:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:53:34,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-28 17:53:34,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-28 17:53:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:53:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 17:53:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 17:53:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:53:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:53:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:53:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:53:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:53:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:53:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:53:34,951 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:53:35,090 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:53:35,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:53:35,532 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:53:35,887 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:53:35,887 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-28 17:53:35,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:35 BoogieIcfgContainer [2023-08-28 17:53:35,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:53:35,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:53:35,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:53:35,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:53:35,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:53:34" (1/3) ... [2023-08-28 17:53:35,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e0d063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:53:35, skipping insertion in model container [2023-08-28 17:53:35,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:34" (2/3) ... [2023-08-28 17:53:35,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e0d063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:53:35, skipping insertion in model container [2023-08-28 17:53:35,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:35" (3/3) ... [2023-08-28 17:53:35,898 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2023-08-28 17:53:35,905 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:53:35,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:53:35,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-28 17:53:35,914 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:53:36,031 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 17:53:36,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 134 transitions, 273 flow [2023-08-28 17:53:36,147 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2023-08-28 17:53:36,147 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:53:36,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 9/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 316 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-28 17:53:36,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 134 transitions, 273 flow [2023-08-28 17:53:36,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 134 transitions, 273 flow [2023-08-28 17:53:36,167 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:53:36,178 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 134 transitions, 273 flow [2023-08-28 17:53:36,182 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 134 transitions, 273 flow [2023-08-28 17:53:36,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 134 transitions, 273 flow [2023-08-28 17:53:36,230 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2023-08-28 17:53:36,232 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:53:36,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 9/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 316 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-28 17:53:36,237 INFO L119 LiptonReduction]: Number of co-enabled transitions 2626 [2023-08-28 17:53:54,691 WARN L222 SmtUtils]: Spent 14.98s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:54:01,802 WARN L222 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:54:19,545 WARN L222 SmtUtils]: Spent 17.74s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:54:28,715 WARN L222 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:54:36,709 WARN L222 SmtUtils]: Spent 7.64s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:54:44,186 WARN L222 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:54:52,069 WARN L222 SmtUtils]: Spent 7.88s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:00,184 WARN L222 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:09,417 WARN L222 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:18,079 WARN L222 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:28,221 WARN L222 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:38,078 WARN L222 SmtUtils]: Spent 9.86s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:50,659 WARN L222 SmtUtils]: Spent 12.21s on a formula simplification. DAG size of input: 143 DAG size of output: 130 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:55:56,799 WARN L222 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:56:09,457 WARN L222 SmtUtils]: Spent 12.66s on a formula simplification. DAG size of input: 156 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:56:16,014 WARN L222 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:56:17,165 INFO L134 LiptonReduction]: Checked pairs total: 3810 [2023-08-28 17:56:17,166 INFO L136 LiptonReduction]: Total number of compositions: 139 [2023-08-28 17:56:17,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:56:17,189 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;@24411e9e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:56:17,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-28 17:56:17,193 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-28 17:56:17,193 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:56:17,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:56:17,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:56:17,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err10ASSERT_VIOLATIONDATA_RACE === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-28 17:56:17,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:56:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash 900044834, now seen corresponding path program 1 times [2023-08-28 17:56:17,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:56:17,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123312230] [2023-08-28 17:56:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:56:17,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:56:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:56:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:56:17,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:56:17,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123312230] [2023-08-28 17:56:17,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123312230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:56:17,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:56:17,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 17:56:17,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876475520] [2023-08-28 17:56:17,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:56:17,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:56:17,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:56:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:56:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:56:17,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 273 [2023-08-28 17:56:17,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 42 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:56:17,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:56:17,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 273 [2023-08-28 17:56:17,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:56:17,779 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-08-28 17:56:17,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:56:17,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 78 events. 37/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 206 event pairs, 22 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 144. Up to 76 conditions per place. [2023-08-28 17:56:17,780 INFO L137 encePairwiseOnDemand]: 252/273 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-28 17:56:17,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 21 transitions, 87 flow [2023-08-28 17:56:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:56:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:56:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 263 transitions. [2023-08-28 17:56:17,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4816849816849817 [2023-08-28 17:56:17,794 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 263 transitions. [2023-08-28 17:56:17,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 263 transitions. [2023-08-28 17:56:17,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:56:17,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 263 transitions. [2023-08-28 17:56:17,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:56:17,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:56:17,804 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:56:17,806 INFO L175 Difference]: Start difference. First operand has 38 places, 42 transitions, 89 flow. Second operand 2 states and 263 transitions. [2023-08-28 17:56:17,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 21 transitions, 87 flow [2023-08-28 17:56:17,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 21 transitions, 87 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:56:17,809 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-08-28 17:56:17,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-08-28 17:56:17,814 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -18 predicate places. [2023-08-28 17:56:17,814 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-08-28 17:56:17,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:56:17,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-08-28 17:56:17,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-08-28 17:56:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-08-28 17:56:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-08-28 17:56:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-08-28 17:56:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-08-28 17:56:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err17ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-08-28 17:56:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-08-28 17:56:17,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-08-28 17:56:17,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-08-28 17:56:17,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-08-28 17:56:17,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-08-28 17:56:17,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-08-28 17:56:17,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-08-28 17:56:17,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-08-28 17:56:17,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-08-28 17:56:17,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-08-28 17:56:17,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-08-28 17:56:17,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-08-28 17:56:17,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-08-28 17:56:17,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-08-28 17:56:17,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-08-28 17:56:17,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-08-28 17:56:17,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-08-28 17:56:17,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-08-28 17:56:17,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-08-28 17:56:17,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-08-28 17:56:17,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-08-28 17:56:17,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-08-28 17:56:17,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-08-28 17:56:17,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-08-28 17:56:17,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-08-28 17:56:17,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-08-28 17:56:17,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-08-28 17:56:17,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-08-28 17:56:17,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-08-28 17:56:17,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:56:17,837 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-28 17:56:17,848 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-28 17:56:17,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 134 transitions, 273 flow [2023-08-28 17:56:17,884 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2023-08-28 17:56:17,885 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:56:17,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 9/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 316 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-28 17:56:17,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 134 transitions, 273 flow [2023-08-28 17:56:17,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 134 transitions, 273 flow [2023-08-28 17:56:17,887 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:56:17,887 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 134 transitions, 273 flow [2023-08-28 17:56:17,888 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 134 transitions, 273 flow [2023-08-28 17:56:17,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 134 transitions, 273 flow [2023-08-28 17:56:17,903 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2023-08-28 17:56:17,904 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:56:17,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 9/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 316 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-28 17:56:17,906 INFO L119 LiptonReduction]: Number of co-enabled transitions 2626 [2023-08-28 17:56:34,038 WARN L222 SmtUtils]: Spent 13.07s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:56:40,137 WARN L222 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:56:53,103 WARN L222 SmtUtils]: Spent 12.96s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:56:59,288 WARN L222 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:06,258 WARN L222 SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:13,074 WARN L222 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:20,645 WARN L222 SmtUtils]: Spent 7.57s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:28,513 WARN L222 SmtUtils]: Spent 7.87s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:37,299 WARN L222 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:46,314 WARN L222 SmtUtils]: Spent 9.01s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:57:56,417 WARN L222 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:58:05,983 WARN L222 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:58:20,507 WARN L222 SmtUtils]: Spent 14.14s on a formula simplification. DAG size of input: 143 DAG size of output: 130 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:58:27,951 WARN L222 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:58:42,210 WARN L222 SmtUtils]: Spent 14.26s on a formula simplification. DAG size of input: 156 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:58:49,522 WARN L222 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:58:50,592 INFO L134 LiptonReduction]: Checked pairs total: 3769 [2023-08-28 17:58:50,592 INFO L136 LiptonReduction]: Total number of compositions: 139 [2023-08-28 17:58:50,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-28 17:58:50,596 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;@24411e9e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:58:50,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-28 17:58:50,600 INFO L130 PetriNetUnfolder]: 1/18 cut-off events. [2023-08-28 17:58:50,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:58:50,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:58:50,601 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-28 17:58:50,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-28 17:58:50,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:58:50,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1950025428, now seen corresponding path program 1 times [2023-08-28 17:58:50,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:58:50,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399202999] [2023-08-28 17:58:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:58:50,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:58:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:58:50,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 17:58:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:58:50,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 17:58:50,688 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 17:58:50,688 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-28 17:58:50,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:58:50,689 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-28 17:58:50,689 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-28 17:58:50,690 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-28 17:58:50,690 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-28 17:58:50,794 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 17:58:50,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 236 transitions, 484 flow [2023-08-28 17:58:50,844 INFO L130 PetriNetUnfolder]: 17/258 cut-off events. [2023-08-28 17:58:50,844 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:58:50,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 258 events. 17/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 973 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 214. Up to 6 conditions per place. [2023-08-28 17:58:50,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 236 transitions, 484 flow [2023-08-28 17:58:50,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 236 transitions, 484 flow [2023-08-28 17:58:50,851 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:58:50,851 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 236 transitions, 484 flow [2023-08-28 17:58:50,851 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 236 transitions, 484 flow [2023-08-28 17:58:50,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 236 transitions, 484 flow [2023-08-28 17:58:50,886 INFO L130 PetriNetUnfolder]: 17/258 cut-off events. [2023-08-28 17:58:50,887 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:58:50,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 258 events. 17/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 973 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 214. Up to 6 conditions per place. [2023-08-28 17:58:50,901 INFO L119 LiptonReduction]: Number of co-enabled transitions 25856 [2023-08-28 17:59:05,834 WARN L222 SmtUtils]: Spent 13.32s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:59:12,686 WARN L222 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:59:27,023 WARN L222 SmtUtils]: Spent 14.34s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:59:34,015 WARN L222 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:59:47,809 WARN L222 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 17:59:55,088 WARN L222 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:00:09,095 WARN L222 SmtUtils]: Spent 14.00s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:00:16,704 WARN L222 SmtUtils]: Spent 7.61s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:00:31,436 WARN L222 SmtUtils]: Spent 14.05s on a formula simplification. DAG size of input: 141 DAG size of output: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:00:38,933 WARN L222 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:00:54,668 WARN L222 SmtUtils]: Spent 15.73s on a formula simplification. DAG size of input: 154 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:01:02,663 WARN L222 SmtUtils]: Spent 7.99s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:01:14,264 WARN L222 SmtUtils]: Spent 11.08s on a formula simplification. DAG size of input: 141 DAG size of output: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:01:20,515 WARN L222 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:01:33,412 WARN L222 SmtUtils]: Spent 12.90s on a formula simplification. DAG size of input: 154 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:01:40,379 WARN L222 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-28 18:01:41,842 INFO L134 LiptonReduction]: Checked pairs total: 100585 [2023-08-28 18:01:41,842 INFO L136 LiptonReduction]: Total number of compositions: 158 [2023-08-28 18:01:41,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 18:01:41,844 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;@24411e9e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:01:41,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-08-28 18:01:41,846 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-28 18:01:41,846 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 18:01:41,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:01:41,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-28 18:01:41,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err16ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:01:41,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:01:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash -578675793, now seen corresponding path program 1 times [2023-08-28 18:01:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:01:41,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55676345] [2023-08-28 18:01:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:01:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:01:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:01:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:01:41,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:01:41,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55676345] [2023-08-28 18:01:41,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55676345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:01:41,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:01:41,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:01:41,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881009515] [2023-08-28 18:01:41,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:01:41,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 18:01:41,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:01:41,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 18:01:41,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 18:01:41,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 394 [2023-08-28 18:01:41,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 122 transitions, 256 flow. Second operand has 2 states, 2 states have (on average 195.0) internal successors, (390), 2 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:41,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:01:41,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 394 [2023-08-28 18:01:41,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:01:42,570 INFO L130 PetriNetUnfolder]: 750/1736 cut-off events. [2023-08-28 18:01:42,570 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2023-08-28 18:01:42,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2909 conditions, 1736 events. 750/1736 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 12244 event pairs, 480 based on Foata normal form. 108/1513 useless extension candidates. Maximal degree in co-relation 858. Up to 1117 conditions per place. [2023-08-28 18:01:42,578 INFO L137 encePairwiseOnDemand]: 361/394 looper letters, 38 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2023-08-28 18:01:42,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 266 flow [2023-08-28 18:01:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 18:01:42,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 18:01:42,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 455 transitions. [2023-08-28 18:01:42,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5774111675126904 [2023-08-28 18:01:42,584 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 455 transitions. [2023-08-28 18:01:42,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 455 transitions. [2023-08-28 18:01:42,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:01:42,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 455 transitions. [2023-08-28 18:01:42,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:42,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:42,595 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:42,595 INFO L175 Difference]: Start difference. First operand has 113 places, 122 transitions, 256 flow. Second operand 2 states and 455 transitions. [2023-08-28 18:01:42,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 89 transitions, 266 flow [2023-08-28 18:01:42,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 89 transitions, 264 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-28 18:01:42,598 INFO L231 Difference]: Finished difference. Result has 85 places, 89 transitions, 188 flow [2023-08-28 18:01:42,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=188, PETRI_PLACES=85, PETRI_TRANSITIONS=89} [2023-08-28 18:01:42,600 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, -28 predicate places. [2023-08-28 18:01:42,600 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 89 transitions, 188 flow [2023-08-28 18:01:42,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.0) internal successors, (390), 2 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:42,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:01:42,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:01:42,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 18:01:42,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:01:42,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:01:42,602 INFO L85 PathProgramCache]: Analyzing trace with hash -689314470, now seen corresponding path program 1 times [2023-08-28 18:01:42,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:01:42,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542205277] [2023-08-28 18:01:42,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:01:42,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:01:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:01:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:01:42,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:01:42,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542205277] [2023-08-28 18:01:42,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542205277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:01:42,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:01:42,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:01:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989109577] [2023-08-28 18:01:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:01:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:01:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:01:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:01:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:01:43,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 394 [2023-08-28 18:01:43,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 89 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:43,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:01:43,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 394 [2023-08-28 18:01:43,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:01:45,915 INFO L130 PetriNetUnfolder]: 2981/5614 cut-off events. [2023-08-28 18:01:45,916 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2023-08-28 18:01:45,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10397 conditions, 5614 events. 2981/5614 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 43823 event pairs, 591 based on Foata normal form. 0/4754 useless extension candidates. Maximal degree in co-relation 10392. Up to 1862 conditions per place. [2023-08-28 18:01:45,948 INFO L137 encePairwiseOnDemand]: 364/394 looper letters, 222 selfloop transitions, 56 changer transitions 0/309 dead transitions. [2023-08-28 18:01:45,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 309 transitions, 1204 flow [2023-08-28 18:01:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:01:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:01:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1284 transitions. [2023-08-28 18:01:45,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5431472081218274 [2023-08-28 18:01:45,953 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1284 transitions. [2023-08-28 18:01:45,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1284 transitions. [2023-08-28 18:01:45,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:01:45,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1284 transitions. [2023-08-28 18:01:45,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.0) internal successors, (1284), 6 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:45,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:45,963 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:45,963 INFO L175 Difference]: Start difference. First operand has 85 places, 89 transitions, 188 flow. Second operand 6 states and 1284 transitions. [2023-08-28 18:01:45,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 309 transitions, 1204 flow [2023-08-28 18:01:45,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 309 transitions, 1204 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:01:45,969 INFO L231 Difference]: Finished difference. Result has 95 places, 145 transitions, 584 flow [2023-08-28 18:01:45,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=95, PETRI_TRANSITIONS=145} [2023-08-28 18:01:45,970 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, -18 predicate places. [2023-08-28 18:01:45,970 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 145 transitions, 584 flow [2023-08-28 18:01:45,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:45,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:01:45,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:01:45,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 18:01:45,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:01:45,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:01:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash 983615781, now seen corresponding path program 1 times [2023-08-28 18:01:45,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:01:45,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713248126] [2023-08-28 18:01:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:01:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:01:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:01:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:01:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:01:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713248126] [2023-08-28 18:01:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713248126] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:01:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:01:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:01:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771106006] [2023-08-28 18:01:46,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:01:46,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:01:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:01:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:01:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:01:46,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 394 [2023-08-28 18:01:46,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 145 transitions, 584 flow. Second operand has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:46,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:01:46,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 394 [2023-08-28 18:01:46,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:01:52,901 INFO L130 PetriNetUnfolder]: 2532/5520 cut-off events. [2023-08-28 18:01:52,901 INFO L131 PetriNetUnfolder]: For 1443/1823 co-relation queries the response was YES. [2023-08-28 18:01:52,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12581 conditions, 5520 events. 2532/5520 cut-off events. For 1443/1823 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 45101 event pairs, 747 based on Foata normal form. 196/4995 useless extension candidates. Maximal degree in co-relation 12571. Up to 2594 conditions per place. [2023-08-28 18:01:52,935 INFO L137 encePairwiseOnDemand]: 382/394 looper letters, 150 selfloop transitions, 31 changer transitions 24/267 dead transitions. [2023-08-28 18:01:52,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 267 transitions, 1446 flow [2023-08-28 18:01:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:01:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:01:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1223 transitions. [2023-08-28 18:01:52,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5173434856175972 [2023-08-28 18:01:52,939 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1223 transitions. [2023-08-28 18:01:52,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1223 transitions. [2023-08-28 18:01:52,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:01:52,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1223 transitions. [2023-08-28 18:01:52,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:52,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:52,951 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:52,951 INFO L175 Difference]: Start difference. First operand has 95 places, 145 transitions, 584 flow. Second operand 6 states and 1223 transitions. [2023-08-28 18:01:52,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 267 transitions, 1446 flow [2023-08-28 18:01:52,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 267 transitions, 1446 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:01:52,964 INFO L231 Difference]: Finished difference. Result has 105 places, 175 transitions, 882 flow [2023-08-28 18:01:52,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=882, PETRI_PLACES=105, PETRI_TRANSITIONS=175} [2023-08-28 18:01:52,967 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, -8 predicate places. [2023-08-28 18:01:52,968 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 175 transitions, 882 flow [2023-08-28 18:01:52,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:52,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:01:52,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:01:52,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 18:01:52,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:01:52,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:01:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash 407657941, now seen corresponding path program 1 times [2023-08-28 18:01:52,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:01:52,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637721838] [2023-08-28 18:01:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:01:52,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:01:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:01:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:01:53,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:01:53,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637721838] [2023-08-28 18:01:53,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637721838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:01:53,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:01:53,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:01:53,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118247447] [2023-08-28 18:01:53,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:01:53,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:01:53,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:01:53,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:01:53,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:01:53,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 394 [2023-08-28 18:01:53,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 175 transitions, 882 flow. Second operand has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:53,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:01:53,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 394 [2023-08-28 18:01:53,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:01:59,075 INFO L130 PetriNetUnfolder]: 2973/6577 cut-off events. [2023-08-28 18:01:59,075 INFO L131 PetriNetUnfolder]: For 2823/3283 co-relation queries the response was YES. [2023-08-28 18:01:59,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16260 conditions, 6577 events. 2973/6577 cut-off events. For 2823/3283 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 56414 event pairs, 995 based on Foata normal form. 228/5990 useless extension candidates. Maximal degree in co-relation 16245. Up to 3342 conditions per place. [2023-08-28 18:01:59,124 INFO L137 encePairwiseOnDemand]: 382/394 looper letters, 170 selfloop transitions, 31 changer transitions 24/290 dead transitions. [2023-08-28 18:01:59,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 290 transitions, 1776 flow [2023-08-28 18:01:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:01:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:01:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2023-08-28 18:01:59,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5169204737732657 [2023-08-28 18:01:59,129 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1222 transitions. [2023-08-28 18:01:59,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1222 transitions. [2023-08-28 18:01:59,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:01:59,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1222 transitions. [2023-08-28 18:01:59,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:59,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:59,139 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:59,139 INFO L175 Difference]: Start difference. First operand has 105 places, 175 transitions, 882 flow. Second operand 6 states and 1222 transitions. [2023-08-28 18:01:59,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 290 transitions, 1776 flow [2023-08-28 18:01:59,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 290 transitions, 1776 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:01:59,153 INFO L231 Difference]: Finished difference. Result has 115 places, 199 transitions, 1164 flow [2023-08-28 18:01:59,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1164, PETRI_PLACES=115, PETRI_TRANSITIONS=199} [2023-08-28 18:01:59,154 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, 2 predicate places. [2023-08-28 18:01:59,154 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 199 transitions, 1164 flow [2023-08-28 18:01:59,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:59,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:01:59,155 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:01:59,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 18:01:59,156 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:01:59,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:01:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash 448909074, now seen corresponding path program 1 times [2023-08-28 18:01:59,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:01:59,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918779036] [2023-08-28 18:01:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:01:59,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:01:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:01:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-28 18:01:59,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:01:59,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918779036] [2023-08-28 18:01:59,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918779036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:01:59,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:01:59,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:01:59,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787984670] [2023-08-28 18:01:59,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:01:59,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:01:59,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:01:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:01:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:01:59,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 394 [2023-08-28 18:01:59,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 199 transitions, 1164 flow. Second operand has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:01:59,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:01:59,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 394 [2023-08-28 18:01:59,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:02:04,496 INFO L130 PetriNetUnfolder]: 3713/8055 cut-off events. [2023-08-28 18:02:04,496 INFO L131 PetriNetUnfolder]: For 5543/6195 co-relation queries the response was YES. [2023-08-28 18:02:04,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21967 conditions, 8055 events. 3713/8055 cut-off events. For 5543/6195 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 70778 event pairs, 1125 based on Foata normal form. 332/7468 useless extension candidates. Maximal degree in co-relation 21947. Up to 3890 conditions per place. [2023-08-28 18:02:04,538 INFO L137 encePairwiseOnDemand]: 382/394 looper letters, 183 selfloop transitions, 47 changer transitions 66/364 dead transitions. [2023-08-28 18:02:04,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 364 transitions, 2620 flow [2023-08-28 18:02:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:02:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:02:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1218 transitions. [2023-08-28 18:02:04,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152284263959391 [2023-08-28 18:02:04,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1218 transitions. [2023-08-28 18:02:04,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1218 transitions. [2023-08-28 18:02:04,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:02:04,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1218 transitions. [2023-08-28 18:02:04,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:04,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:04,549 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:04,549 INFO L175 Difference]: Start difference. First operand has 115 places, 199 transitions, 1164 flow. Second operand 6 states and 1218 transitions. [2023-08-28 18:02:04,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 364 transitions, 2620 flow [2023-08-28 18:02:04,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 364 transitions, 2568 flow, removed 26 selfloop flow, removed 0 redundant places. [2023-08-28 18:02:04,573 INFO L231 Difference]: Finished difference. Result has 125 places, 245 transitions, 1682 flow [2023-08-28 18:02:04,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1682, PETRI_PLACES=125, PETRI_TRANSITIONS=245} [2023-08-28 18:02:04,575 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, 12 predicate places. [2023-08-28 18:02:04,575 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 245 transitions, 1682 flow [2023-08-28 18:02:04,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:04,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:02:04,576 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:02:04,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 18:02:04,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:02:04,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:02:04,576 INFO L85 PathProgramCache]: Analyzing trace with hash -681325443, now seen corresponding path program 1 times [2023-08-28 18:02:04,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:02:04,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615116735] [2023-08-28 18:02:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:02:04,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:02:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:02:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-28 18:02:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:02:04,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615116735] [2023-08-28 18:02:04,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615116735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:02:04,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:02:04,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:02:04,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702044928] [2023-08-28 18:02:04,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:02:04,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:02:04,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:02:04,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:02:04,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:02:05,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 394 [2023-08-28 18:02:05,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 245 transitions, 1682 flow. Second operand has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:05,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:02:05,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 394 [2023-08-28 18:02:05,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:02:08,863 INFO L130 PetriNetUnfolder]: 4427/9525 cut-off events. [2023-08-28 18:02:08,863 INFO L131 PetriNetUnfolder]: For 9261/10097 co-relation queries the response was YES. [2023-08-28 18:02:08,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28386 conditions, 9525 events. 4427/9525 cut-off events. For 9261/10097 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 85601 event pairs, 1363 based on Foata normal form. 434/8850 useless extension candidates. Maximal degree in co-relation 28361. Up to 4708 conditions per place. [2023-08-28 18:02:08,919 INFO L137 encePairwiseOnDemand]: 382/394 looper letters, 212 selfloop transitions, 47 changer transitions 75/405 dead transitions. [2023-08-28 18:02:08,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 405 transitions, 3222 flow [2023-08-28 18:02:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:02:08,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:02:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2023-08-28 18:02:08,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156514382402707 [2023-08-28 18:02:08,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2023-08-28 18:02:08,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2023-08-28 18:02:08,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:02:08,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2023-08-28 18:02:08,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:08,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:08,930 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 394.0) internal successors, (2758), 7 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:08,930 INFO L175 Difference]: Start difference. First operand has 125 places, 245 transitions, 1682 flow. Second operand 6 states and 1219 transitions. [2023-08-28 18:02:08,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 405 transitions, 3222 flow [2023-08-28 18:02:08,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 405 transitions, 3222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:02:08,958 INFO L231 Difference]: Finished difference. Result has 135 places, 276 transitions, 2196 flow [2023-08-28 18:02:08,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=1682, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2196, PETRI_PLACES=135, PETRI_TRANSITIONS=276} [2023-08-28 18:02:08,959 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, 22 predicate places. [2023-08-28 18:02:08,959 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 276 transitions, 2196 flow [2023-08-28 18:02:08,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:08,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:02:08,960 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:02:08,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 18:02:08,960 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:02:08,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:02:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1418662670, now seen corresponding path program 1 times [2023-08-28 18:02:08,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:02:08,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759476090] [2023-08-28 18:02:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:02:08,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:02:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:02:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:02:09,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:02:09,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759476090] [2023-08-28 18:02:09,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759476090] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:02:09,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:02:09,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 18:02:09,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368807813] [2023-08-28 18:02:09,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:02:09,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-28 18:02:09,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:02:09,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-28 18:02:09,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-28 18:02:09,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 394 [2023-08-28 18:02:09,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 276 transitions, 2196 flow. Second operand has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:09,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:02:09,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 394 [2023-08-28 18:02:09,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:02:12,496 INFO L130 PetriNetUnfolder]: 3971/9392 cut-off events. [2023-08-28 18:02:12,496 INFO L131 PetriNetUnfolder]: For 12064/12926 co-relation queries the response was YES. [2023-08-28 18:02:12,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29902 conditions, 9392 events. 3971/9392 cut-off events. For 12064/12926 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 86585 event pairs, 619 based on Foata normal form. 478/8903 useless extension candidates. Maximal degree in co-relation 29872. Up to 5283 conditions per place. [2023-08-28 18:02:12,557 INFO L137 encePairwiseOnDemand]: 387/394 looper letters, 230 selfloop transitions, 7 changer transitions 7/322 dead transitions. [2023-08-28 18:02:12,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 322 transitions, 2918 flow [2023-08-28 18:02:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 18:02:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 18:02:12,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1002 transitions. [2023-08-28 18:02:12,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5086294416243655 [2023-08-28 18:02:12,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1002 transitions. [2023-08-28 18:02:12,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1002 transitions. [2023-08-28 18:02:12,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:02:12,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1002 transitions. [2023-08-28 18:02:12,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:12,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:12,567 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:12,568 INFO L175 Difference]: Start difference. First operand has 135 places, 276 transitions, 2196 flow. Second operand 5 states and 1002 transitions. [2023-08-28 18:02:12,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 322 transitions, 2918 flow [2023-08-28 18:02:12,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 322 transitions, 2858 flow, removed 30 selfloop flow, removed 0 redundant places. [2023-08-28 18:02:12,617 INFO L231 Difference]: Finished difference. Result has 142 places, 278 transitions, 2226 flow [2023-08-28 18:02:12,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2226, PETRI_PLACES=142, PETRI_TRANSITIONS=278} [2023-08-28 18:02:12,618 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, 29 predicate places. [2023-08-28 18:02:12,618 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 278 transitions, 2226 flow [2023-08-28 18:02:12,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:02:12,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:02:12,619 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:02:12,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-28 18:02:12,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-28 18:02:12,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:02:12,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1290324855, now seen corresponding path program 1 times [2023-08-28 18:02:12,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:02:12,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104779824] [2023-08-28 18:02:12,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:02:12,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:02:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:02:12,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 18:02:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:02:12,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 18:02:12,753 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 18:02:12,754 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 54 remaining) [2023-08-28 18:02:12,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2023-08-28 18:02:12,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2023-08-28 18:02:12,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2023-08-28 18:02:12,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2023-08-28 18:02:12,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2023-08-28 18:02:12,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2023-08-28 18:02:12,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2023-08-28 18:02:12,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2023-08-28 18:02:12,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2023-08-28 18:02:12,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2023-08-28 18:02:12,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2023-08-28 18:02:12,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2023-08-28 18:02:12,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2023-08-28 18:02:12,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2023-08-28 18:02:12,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2023-08-28 18:02:12,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2023-08-28 18:02:12,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2023-08-28 18:02:12,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2023-08-28 18:02:12,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2023-08-28 18:02:12,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2023-08-28 18:02:12,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2023-08-28 18:02:12,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2023-08-28 18:02:12,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2023-08-28 18:02:12,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2023-08-28 18:02:12,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2023-08-28 18:02:12,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2023-08-28 18:02:12,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2023-08-28 18:02:12,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2023-08-28 18:02:12,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2023-08-28 18:02:12,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-28 18:02:12,763 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:02:12,764 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-28 18:02:12,766 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-28 18:02:12,766 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 18:02:12,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 06:02:12 BasicIcfg [2023-08-28 18:02:12,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 18:02:12,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 18:02:12,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 18:02:12,918 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 18:02:12,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:35" (3/4) ... [2023-08-28 18:02:12,921 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 18:02:12,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 18:02:12,922 INFO L158 Benchmark]: Toolchain (without parser) took 518797.29ms. Allocated memory was 83.9MB in the beginning and 1.1GB in the end (delta: 966.8MB). Free memory was 61.1MB in the beginning and 828.7MB in the end (delta: -767.6MB). Peak memory consumption was 201.1MB. Max. memory is 16.1GB. [2023-08-28 18:02:12,922 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:02:12,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.82ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 60.1MB in the end (delta: 790.0kB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-08-28 18:02:12,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.19ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 56.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:02:12,923 INFO L158 Benchmark]: Boogie Preprocessor took 57.16ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 53.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 18:02:12,924 INFO L158 Benchmark]: RCFGBuilder took 1029.43ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 53.4MB in the beginning and 65.2MB in the end (delta: -11.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2023-08-28 18:02:12,924 INFO L158 Benchmark]: TraceAbstraction took 517024.89ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 950.0MB). Free memory was 64.4MB in the beginning and 828.7MB in the end (delta: -764.3MB). Peak memory consumption was 583.7MB. Max. memory is 16.1GB. [2023-08-28 18:02:12,924 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 1.1GB. Free memory is still 828.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:02:12,926 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 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.82ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 60.1MB in the end (delta: 790.0kB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.19ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 56.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.16ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 53.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1029.43ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 53.4MB in the beginning and 65.2MB in the end (delta: -11.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * TraceAbstraction took 517024.89ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 950.0MB). Free memory was 64.4MB in the beginning and 828.7MB in the end (delta: -764.3MB). Peak memory consumption was 583.7MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 1.1GB. Free memory is still 828.7MB. 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: 161.0s, 129 PlacesBefore, 38 PlacesAfterwards, 134 TransitionsBefore, 42 TransitionsAfterwards, 2626 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 139 TotalNumberOfCompositions, 3810 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3023, independent: 2819, independent conditional: 0, independent unconditional: 2819, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1441, independent: 1391, independent conditional: 0, independent unconditional: 1391, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3023, independent: 1428, independent conditional: 0, independent unconditional: 1428, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 1441, unknown conditional: 0, unknown unconditional: 1441] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.7s, 129 PlacesBefore, 38 PlacesAfterwards, 134 TransitionsBefore, 42 TransitionsAfterwards, 2626 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 107 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 139 TotalNumberOfCompositions, 3769 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2911, independent: 2715, independent conditional: 0, independent unconditional: 2715, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437, independent: 1387, independent conditional: 0, independent unconditional: 1387, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2911, independent: 1328, independent conditional: 0, independent unconditional: 1328, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 1437, unknown conditional: 0, unknown unconditional: 1437] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.0s, 226 PlacesBefore, 113 PlacesAfterwards, 236 TransitionsBefore, 122 TransitionsAfterwards, 25856 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 120 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 1 ChoiceCompositions, 158 TotalNumberOfCompositions, 100585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29156, independent: 27997, independent conditional: 0, independent unconditional: 27997, dependent: 1159, dependent conditional: 0, dependent unconditional: 1159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11885, independent: 11694, independent conditional: 0, independent unconditional: 11694, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29156, independent: 16303, independent conditional: 0, independent unconditional: 16303, dependent: 968, dependent conditional: 0, dependent unconditional: 968, unknown: 11885, unknown conditional: 0, unknown unconditional: 11885] , Statistics on independence cache: Total cache size (in pairs): 1301, Positive cache size: 1184, Positive conditional cache size: 0, Positive unconditional cache size: 1184, Negative cache size: 117, Negative conditional cache size: 0, Negative unconditional cache size: 117, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 729]: Data race detected Data race detected The following path leads to a data race: [L701] 0 volatile unsigned value = 0; [L702] 0 volatile unsigned inc_flag = 0; [L703] 0 volatile unsigned dec_flag = 0; [L747] 0 pthread_t t; VAL [dec_flag={5:0}, inc_flag={4:0}, t={8:0}, value={3:0}] [L748] COND TRUE 0 1 [L749] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [dec_flag={5:0}, inc_flag={4:0}, pthread_create(&t, 0, thr1, 0)=-1, t={8:0}, value={3:0}] [L748] COND TRUE 0 1 [L741] 1 int r = __VERIFIER_nondet_int(); [L742] COND FALSE 1 !(\read(r)) [L743] CALL 1 dec() [L727] 1 unsigned dec__v, dec__vn, dec__casret; VAL [dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] [L749] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [dec_flag={5:0}, inc_flag={4:0}, pthread_create(&t, 0, thr1, 0)=0, t={8:0}, value={3:0}] [L741] 2 int r = __VERIFIER_nondet_int(); [L742] COND TRUE 2 \read(r) [L742] CALL 2 inc() [L709] 2 unsigned inc__v, inc__vn, inc__casret; VAL [dec_flag={5:0}, inc__casret={6:0}, inc_flag={4:0}, value={3:0}] [L729] EXPR 1 \read(value) VAL [\read(value)=0, dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] [L729] 1 dec__v = value VAL [\read(value)=0, dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] [L711] EXPR 2 \read(value) VAL [\read(value)=0, dec_flag={5:0}, inc__casret={6:0}, inc_flag={4:0}, value={3:0}] [L711] 2 inc__v = value VAL [\read(value)=0, dec_flag={5:0}, inc__casret={6:0}, inc_flag={4:0}, value={3:0}] [L729] 1 dec__v = value VAL [\read(value)=0, dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] [L711] 2 inc__v = value VAL [\read(value)=0, dec_flag={5:0}, inc__casret={6:0}, inc_flag={4:0}, value={3:0}] [L729] 1 dec__v = value VAL [\read(value)=0, dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] [L711] 2 inc__v = value VAL [\read(value)=0, dec_flag={5:0}, inc__casret={6:0}, inc_flag={4:0}, value={3:0}] [L729] 1 dec__v = value VAL [\read(value)=0, dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] [L711] 2 inc__v = value [L712] COND FALSE 2 !(inc__v == 0u-1) [L715] 2 inc__vn = inc__v + 1 [L716] CALL 2 __VERIFIER_atomic_CAS(&value,inc__v,inc__vn,&inc__casret,&inc_flag) [L692] EXPR 2 \read(*v) [L692] 2 *v == e [L692] COND TRUE 2 *v == e [L694] 2 *flag = 1 [L694] 2 *v = u [L694] 2 *r = 1 [L716] RET 2 __VERIFIER_atomic_CAS(&value,inc__v,inc__vn,&inc__casret,&inc_flag) [L729] 1 dec__v = value VAL [\read(value)=0, dec__casret={9:0}, dec_flag={5:0}, inc_flag={4:0}, value={3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *flag = 1 [694] * C: *r = 0 [698] * C: *r = 1 [694] * C: *r = 0 [698] * C: *flag = 1 [694] * C: *v = u [694] * C: *r = 0 [698] * C: *v = u [694] * C: *r = 1 [694] * C: *flag = 1 [694] * C: *v = u [694] * C: *flag = 1 [694] * C: *r = 1 [694] * C: *v = u [694] * C: *r = 1 [694] * C: *r = 0 [698] and C: dec__v = value [729] - UnprovableResult [Line: 706]: 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: 692]: 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: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 222 locations, 37 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: 161.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 161.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 317 locations, 55 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: 202.0s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 171.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1414 SdHoareTripleChecker+Valid, 21.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 902 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 21.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 710 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3550 IncrementalHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 710 mSolverCounterUnsat, 0 mSDtfsCounter, 3550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2226occurred in iteration=7, InterpolantAutomatonStates: 37, 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, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 6/6 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 222 locations, 37 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: 152.8s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 152.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-28 18:02:13,033 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