./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/36_stack_cas_p0_vs_concur.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/36_stack_cas_p0_vs_concur.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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 09:35:05,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:35:05,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:35:05,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:35:05,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:35:05,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:35:05,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:35:05,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:35:05,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:35:05,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:35:05,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:35:05,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:35:05,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:35:05,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:35:05,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:35:05,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:35:05,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:35:05,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:35:05,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:35:05,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:35:05,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:35:05,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:35:05,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:35:05,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:35:05,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:35:05,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:35:05,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:35:05,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:35:05,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:35:05,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:35:05,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:35:05,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:35:05,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:35:05,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:35:05,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:35:05,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:35:05,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:35:05,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:35:05,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:35:05,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:35:05,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:35:05,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:35:05,476 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:35:05,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:35:05,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:35:05,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:35:05,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:35:05,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:35:05,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:35:05,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:35:05,481 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:35:05,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:35:05,482 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:35:05,482 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:35:05,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:35:05,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:35:05,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:35:05,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:35:05,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:35:05,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:35:05,483 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:35:05,483 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:35:05,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:35:05,484 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:35:05,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:35:05,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:35:05,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:35:05,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:35:05,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:35:05,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:35:05,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:35:05,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:35:05,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:35:05,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:35:05,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:35:05,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:35:05,487 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:35:05,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:35:05,487 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:35:05,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:35:05,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:35:05,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:35:05,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:35:05,779 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:35:05,780 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:35:05,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/36_stack_cas_p0_vs_concur.i [2023-08-29 09:35:06,920 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:35:07,210 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:35:07,210 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/36_stack_cas_p0_vs_concur.i [2023-08-29 09:35:07,225 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9e166ac0/31c612b94c824459af07f0fce96128ea/FLAG0c37a676a [2023-08-29 09:35:07,241 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9e166ac0/31c612b94c824459af07f0fce96128ea [2023-08-29 09:35:07,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:35:07,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:35:07,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:35:07,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:35:07,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:35:07,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e76040f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07, skipping insertion in model container [2023-08-29 09:35:07,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:35:07,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:35:07,668 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/36_stack_cas_p0_vs_concur.i[30687,30700] [2023-08-29 09:35:07,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:35:07,683 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:35:07,741 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/36_stack_cas_p0_vs_concur.i[30687,30700] [2023-08-29 09:35:07,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:35:07,783 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:35:07,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07 WrapperNode [2023-08-29 09:35:07,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:35:07,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:35:07,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:35:07,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:35:07,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,861 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 195 [2023-08-29 09:35:07,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:35:07,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:35:07,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:35:07,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:35:07,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:35:07,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:35:07,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:35:07,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:35:07,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (1/1) ... [2023-08-29 09:35:07,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:35:07,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:35:07,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 09:35:07,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 09:35:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:35:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:35:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:35:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:35:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:35:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:35:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:35:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:35:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:35:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:35:08,030 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 09:35:08,214 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:35:08,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:35:08,601 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:35:08,764 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:35:08,764 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 09:35:08,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:08 BoogieIcfgContainer [2023-08-29 09:35:08,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:35:08,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:35:08,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:35:08,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:35:08,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:35:07" (1/3) ... [2023-08-29 09:35:08,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408ea780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:35:08, skipping insertion in model container [2023-08-29 09:35:08,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:07" (2/3) ... [2023-08-29 09:35:08,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408ea780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:35:08, skipping insertion in model container [2023-08-29 09:35:08,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:08" (3/3) ... [2023-08-29 09:35:08,773 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2023-08-29 09:35:08,780 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:35:08,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:35:08,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-29 09:35:08,789 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:35:08,872 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:35:08,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 309 flow [2023-08-29 09:35:08,979 INFO L130 PetriNetUnfolder]: 10/162 cut-off events. [2023-08-29 09:35:08,979 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:35:08,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 10/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 159 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2023-08-29 09:35:08,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 152 transitions, 309 flow [2023-08-29 09:35:08,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 152 transitions, 309 flow [2023-08-29 09:35:08,998 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:35:09,006 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 152 transitions, 309 flow [2023-08-29 09:35:09,010 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 152 transitions, 309 flow [2023-08-29 09:35:09,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 309 flow [2023-08-29 09:35:09,062 INFO L130 PetriNetUnfolder]: 10/162 cut-off events. [2023-08-29 09:35:09,063 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:35:09,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 10/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 159 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2023-08-29 09:35:09,069 INFO L119 LiptonReduction]: Number of co-enabled transitions 3198 [2023-08-29 09:35:35,192 WARN L222 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 126 DAG size of output: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:35:45,711 WARN L222 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 121 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:35:57,197 WARN L222 SmtUtils]: Spent 9.50s on a formula simplification. DAG size of input: 125 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:36:00,965 INFO L134 LiptonReduction]: Checked pairs total: 4473 [2023-08-29 09:36:00,965 INFO L136 LiptonReduction]: Total number of compositions: 175 [2023-08-29 09:36:00,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:36:00,981 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;@3a94407b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:36:00,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-29 09:36:00,984 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-29 09:36:00,984 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:36:00,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:36:00,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:36:00,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 09:36:00,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:36:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 800585710, now seen corresponding path program 1 times [2023-08-29 09:36:00,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:36:00,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484957715] [2023-08-29 09:36:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:36:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:36:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:36:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:36:01,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:36:01,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484957715] [2023-08-29 09:36:01,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484957715] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:36:01,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:36:01,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:36:01,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46619495] [2023-08-29 09:36:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:36:01,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:36:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:36:01,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:36:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:36:01,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 327 [2023-08-29 09:36:01,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 97 flow. Second operand has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:01,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:36:01,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 327 [2023-08-29 09:36:01,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:36:01,464 INFO L130 PetriNetUnfolder]: 42/102 cut-off events. [2023-08-29 09:36:01,465 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:36:01,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 102 events. 42/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 192 event pairs, 33 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 190. Up to 98 conditions per place. [2023-08-29 09:36:01,468 INFO L137 encePairwiseOnDemand]: 307/327 looper letters, 23 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-08-29 09:36:01,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 103 flow [2023-08-29 09:36:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:36:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:36:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 303 transitions. [2023-08-29 09:36:01,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463302752293578 [2023-08-29 09:36:01,490 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 303 transitions. [2023-08-29 09:36:01,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 303 transitions. [2023-08-29 09:36:01,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:36:01,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 303 transitions. [2023-08-29 09:36:01,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.5) internal successors, (303), 2 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:01,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:01,506 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:01,507 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 97 flow. Second operand 2 states and 303 transitions. [2023-08-29 09:36:01,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 103 flow [2023-08-29 09:36:01,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 103 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:36:01,511 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 57 flow [2023-08-29 09:36:01,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-08-29 09:36:01,517 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -18 predicate places. [2023-08-29 09:36:01,517 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 57 flow [2023-08-29 09:36:01,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:01,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:36:01,518 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 09:36:01,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:36:01,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 09:36:01,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:36:01,531 INFO L85 PathProgramCache]: Analyzing trace with hash -951498406, now seen corresponding path program 1 times [2023-08-29 09:36:01,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:36:01,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638537587] [2023-08-29 09:36:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:36:01,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:36:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:36:01,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:36:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:36:01,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:36:01,613 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:36:01,615 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-08-29 09:36:01,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-08-29 09:36:01,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-08-29 09:36:01,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-08-29 09:36:01,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-08-29 09:36:01,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-08-29 09:36:01,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-08-29 09:36:01,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-08-29 09:36:01,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-08-29 09:36:01,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-08-29 09:36:01,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-08-29 09:36:01,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-08-29 09:36:01,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-08-29 09:36:01,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-08-29 09:36:01,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-08-29 09:36:01,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-08-29 09:36:01,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-08-29 09:36:01,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-08-29 09:36:01,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-08-29 09:36:01,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-08-29 09:36:01,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-08-29 09:36:01,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-08-29 09:36:01,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-08-29 09:36:01,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-08-29 09:36:01,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-08-29 09:36:01,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-08-29 09:36:01,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-08-29 09:36:01,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-08-29 09:36:01,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-08-29 09:36:01,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-08-29 09:36:01,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-08-29 09:36:01,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-08-29 09:36:01,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-08-29 09:36:01,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-08-29 09:36:01,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-08-29 09:36:01,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-08-29 09:36:01,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-08-29 09:36:01,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-08-29 09:36:01,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-08-29 09:36:01,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:36:01,632 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 09:36:01,636 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:36:01,637 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 09:36:01,704 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:36:01,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 276 transitions, 564 flow [2023-08-29 09:36:01,774 INFO L130 PetriNetUnfolder]: 19/298 cut-off events. [2023-08-29 09:36:01,775 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:36:01,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 298 events. 19/298 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 688 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 258. Up to 6 conditions per place. [2023-08-29 09:36:01,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 276 transitions, 564 flow [2023-08-29 09:36:01,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 276 transitions, 564 flow [2023-08-29 09:36:01,783 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:36:01,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 276 transitions, 564 flow [2023-08-29 09:36:01,784 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 276 transitions, 564 flow [2023-08-29 09:36:01,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 276 transitions, 564 flow [2023-08-29 09:36:01,844 INFO L130 PetriNetUnfolder]: 19/298 cut-off events. [2023-08-29 09:36:01,844 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:36:01,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 298 events. 19/298 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 688 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 258. Up to 6 conditions per place. [2023-08-29 09:36:01,863 INFO L119 LiptonReduction]: Number of co-enabled transitions 36900 [2023-08-29 09:36:10,196 INFO L134 LiptonReduction]: Checked pairs total: 193829 [2023-08-29 09:36:10,196 INFO L136 LiptonReduction]: Total number of compositions: 131 [2023-08-29 09:36:10,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:36:10,199 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;@3a94407b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:36:10,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-29 09:36:10,201 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-29 09:36:10,202 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:36:10,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:36:10,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:36:10,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-29 09:36:10,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:36:10,203 INFO L85 PathProgramCache]: Analyzing trace with hash -532098735, now seen corresponding path program 1 times [2023-08-29 09:36:10,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:36:10,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895161104] [2023-08-29 09:36:10,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:36:10,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:36:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:36:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:36:10,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:36:10,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895161104] [2023-08-29 09:36:10,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895161104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:36:10,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:36:10,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:36:10,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081179561] [2023-08-29 09:36:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:36:10,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:36:10,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:36:10,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:36:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:36:10,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 407 [2023-08-29 09:36:10,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 175 transitions, 362 flow. Second operand has 2 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:10,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:36:10,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 407 [2023-08-29 09:36:10,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:36:10,890 INFO L130 PetriNetUnfolder]: 1353/4134 cut-off events. [2023-08-29 09:36:10,891 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-08-29 09:36:10,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 4134 events. 1353/4134 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 32498 event pairs, 1148 based on Foata normal form. 156/3914 useless extension candidates. Maximal degree in co-relation 4805. Up to 2190 conditions per place. [2023-08-29 09:36:10,917 INFO L137 encePairwiseOnDemand]: 378/407 looper letters, 45 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2023-08-29 09:36:10,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 141 transitions, 384 flow [2023-08-29 09:36:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:36:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:36:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 542 transitions. [2023-08-29 09:36:10,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6658476658476659 [2023-08-29 09:36:10,920 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 542 transitions. [2023-08-29 09:36:10,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 542 transitions. [2023-08-29 09:36:10,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:36:10,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 542 transitions. [2023-08-29 09:36:10,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:10,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:10,939 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:10,939 INFO L175 Difference]: Start difference. First operand has 169 places, 175 transitions, 362 flow. Second operand 2 states and 542 transitions. [2023-08-29 09:36:10,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 141 transitions, 384 flow [2023-08-29 09:36:10,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 141 transitions, 382 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-29 09:36:10,943 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 292 flow [2023-08-29 09:36:10,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=292, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2023-08-29 09:36:10,945 INFO L281 CegarLoopForPetriNet]: 169 programPoint places, -27 predicate places. [2023-08-29 09:36:10,945 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 292 flow [2023-08-29 09:36:10,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:10,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:36:10,949 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 09:36:10,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:36:10,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-29 09:36:10,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:36:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 441150951, now seen corresponding path program 1 times [2023-08-29 09:36:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:36:10,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384764732] [2023-08-29 09:36:10,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:36:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:36:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:36:10,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:36:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:36:11,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:36:11,011 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:36:11,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2023-08-29 09:36:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2023-08-29 09:36:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2023-08-29 09:36:11,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2023-08-29 09:36:11,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2023-08-29 09:36:11,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2023-08-29 09:36:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2023-08-29 09:36:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2023-08-29 09:36:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2023-08-29 09:36:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2023-08-29 09:36:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2023-08-29 09:36:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2023-08-29 09:36:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2023-08-29 09:36:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2023-08-29 09:36:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2023-08-29 09:36:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2023-08-29 09:36:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2023-08-29 09:36:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2023-08-29 09:36:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2023-08-29 09:36:11,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2023-08-29 09:36:11,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2023-08-29 09:36:11,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2023-08-29 09:36:11,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2023-08-29 09:36:11,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2023-08-29 09:36:11,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2023-08-29 09:36:11,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2023-08-29 09:36:11,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2023-08-29 09:36:11,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2023-08-29 09:36:11,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2023-08-29 09:36:11,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2023-08-29 09:36:11,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2023-08-29 09:36:11,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2023-08-29 09:36:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2023-08-29 09:36:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2023-08-29 09:36:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2023-08-29 09:36:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2023-08-29 09:36:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2023-08-29 09:36:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2023-08-29 09:36:11,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2023-08-29 09:36:11,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2023-08-29 09:36:11,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2023-08-29 09:36:11,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2023-08-29 09:36:11,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2023-08-29 09:36:11,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2023-08-29 09:36:11,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2023-08-29 09:36:11,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2023-08-29 09:36:11,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2023-08-29 09:36:11,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2023-08-29 09:36:11,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2023-08-29 09:36:11,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2023-08-29 09:36:11,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2023-08-29 09:36:11,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2023-08-29 09:36:11,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:36:11,024 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 09:36:11,025 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:36:11,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 09:36:11,119 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:36:11,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 382 places, 400 transitions, 821 flow [2023-08-29 09:36:11,234 INFO L130 PetriNetUnfolder]: 28/434 cut-off events. [2023-08-29 09:36:11,248 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:36:11,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 434 events. 28/434 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1419 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 381. Up to 8 conditions per place. [2023-08-29 09:36:11,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 382 places, 400 transitions, 821 flow [2023-08-29 09:36:11,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 382 places, 400 transitions, 821 flow [2023-08-29 09:36:11,276 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:36:11,277 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 382 places, 400 transitions, 821 flow [2023-08-29 09:36:11,277 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 382 places, 400 transitions, 821 flow [2023-08-29 09:36:11,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 382 places, 400 transitions, 821 flow [2023-08-29 09:36:11,397 INFO L130 PetriNetUnfolder]: 28/434 cut-off events. [2023-08-29 09:36:11,397 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:36:11,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 434 events. 28/434 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1419 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 381. Up to 8 conditions per place. [2023-08-29 09:36:11,433 INFO L119 LiptonReduction]: Number of co-enabled transitions 101106 [2023-08-29 09:36:25,088 INFO L134 LiptonReduction]: Checked pairs total: 546921 [2023-08-29 09:36:25,088 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-08-29 09:36:25,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:36:25,090 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;@3a94407b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:36:25,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2023-08-29 09:36:25,093 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-29 09:36:25,093 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:36:25,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:36:25,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:36:25,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-08-29 09:36:25,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:36:25,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1659697141, now seen corresponding path program 1 times [2023-08-29 09:36:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:36:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972523473] [2023-08-29 09:36:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:36:25,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:36:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:36:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:36:25,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:36:25,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972523473] [2023-08-29 09:36:25,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972523473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:36:25,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:36:25,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:36:25,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062563514] [2023-08-29 09:36:25,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:36:25,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:36:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:36:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:36:25,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:36:25,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 581 [2023-08-29 09:36:25,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 256 transitions, 533 flow. Second operand has 2 states, 2 states have (on average 340.5) internal successors, (681), 2 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:25,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:36:25,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 581 [2023-08-29 09:36:25,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:36:35,008 INFO L130 PetriNetUnfolder]: 37045/84537 cut-off events. [2023-08-29 09:36:35,008 INFO L131 PetriNetUnfolder]: For 2068/2068 co-relation queries the response was YES. [2023-08-29 09:36:35,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136598 conditions, 84537 events. 37045/84537 cut-off events. For 2068/2068 co-relation queries the response was YES. Maximal size of possible extension queue 1379. Compared 957066 event pairs, 31370 based on Foata normal form. 2157/79053 useless extension candidates. Maximal degree in co-relation 71758. Up to 50616 conditions per place. [2023-08-29 09:36:35,709 INFO L137 encePairwiseOnDemand]: 540/581 looper letters, 63 selfloop transitions, 0 changer transitions 0/208 dead transitions. [2023-08-29 09:36:35,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 208 transitions, 563 flow [2023-08-29 09:36:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:36:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:36:35,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 780 transitions. [2023-08-29 09:36:35,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6712564543889845 [2023-08-29 09:36:35,713 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 780 transitions. [2023-08-29 09:36:35,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 780 transitions. [2023-08-29 09:36:35,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:36:35,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 780 transitions. [2023-08-29 09:36:35,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 390.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:35,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:35,719 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:35,719 INFO L175 Difference]: Start difference. First operand has 248 places, 256 transitions, 533 flow. Second operand 2 states and 780 transitions. [2023-08-29 09:36:35,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 208 transitions, 563 flow [2023-08-29 09:36:35,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 208 transitions, 557 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-29 09:36:35,729 INFO L231 Difference]: Finished difference. Result has 208 places, 208 transitions, 431 flow [2023-08-29 09:36:35,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=581, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=431, PETRI_PLACES=208, PETRI_TRANSITIONS=208} [2023-08-29 09:36:35,732 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -40 predicate places. [2023-08-29 09:36:35,732 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 208 transitions, 431 flow [2023-08-29 09:36:35,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 340.5) internal successors, (681), 2 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:35,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:36:35,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:36:35,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:36:35,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-08-29 09:36:35,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:36:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash -649333506, now seen corresponding path program 1 times [2023-08-29 09:36:35,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:36:35,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407511157] [2023-08-29 09:36:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:36:35,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:36:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:36:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:36:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:36:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407511157] [2023-08-29 09:36:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407511157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:36:36,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:36:36,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:36:36,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028322548] [2023-08-29 09:36:36,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:36:36,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:36:36,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:36:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:36:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:36:36,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 581 [2023-08-29 09:36:36,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 208 transitions, 431 flow. Second operand has 6 states, 6 states have (on average 311.6666666666667) internal successors, (1870), 6 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:36:36,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:36:36,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 581 [2023-08-29 09:36:36,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:37:05,042 INFO L130 PetriNetUnfolder]: 151709/286193 cut-off events. [2023-08-29 09:37:05,042 INFO L131 PetriNetUnfolder]: For 4100/4100 co-relation queries the response was YES. [2023-08-29 09:37:05,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499087 conditions, 286193 events. 151709/286193 cut-off events. For 4100/4100 co-relation queries the response was YES. Maximal size of possible extension queue 4547. Compared 3297315 event pairs, 48996 based on Foata normal form. 0/261496 useless extension candidates. Maximal degree in co-relation 499081. Up to 109504 conditions per place. [2023-08-29 09:37:07,400 INFO L137 encePairwiseOnDemand]: 551/581 looper letters, 251 selfloop transitions, 38 changer transitions 0/411 dead transitions. [2023-08-29 09:37:07,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 411 transitions, 1455 flow [2023-08-29 09:37:07,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:37:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:37:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2023-08-29 09:37:07,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6176133103843947 [2023-08-29 09:37:07,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2153 transitions. [2023-08-29 09:37:07,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2153 transitions. [2023-08-29 09:37:07,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:37:07,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2153 transitions. [2023-08-29 09:37:07,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.8333333333333) internal successors, (2153), 6 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:37:07,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 581.0) internal successors, (4067), 7 states have internal predecessors, (4067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:37:07,420 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 581.0) internal successors, (4067), 7 states have internal predecessors, (4067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:37:07,420 INFO L175 Difference]: Start difference. First operand has 208 places, 208 transitions, 431 flow. Second operand 6 states and 2153 transitions. [2023-08-29 09:37:07,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 411 transitions, 1455 flow [2023-08-29 09:37:07,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 411 transitions, 1455 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:37:07,429 INFO L231 Difference]: Finished difference. Result has 218 places, 245 transitions, 715 flow [2023-08-29 09:37:07,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=581, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=715, PETRI_PLACES=218, PETRI_TRANSITIONS=245} [2023-08-29 09:37:07,431 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -30 predicate places. [2023-08-29 09:37:07,431 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 245 transitions, 715 flow [2023-08-29 09:37:07,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.6666666666667) internal successors, (1870), 6 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:37:07,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:37:07,432 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-29 09:37:07,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:37:07,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-08-29 09:37:07,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:37:07,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2116556774, now seen corresponding path program 1 times [2023-08-29 09:37:07,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:37:07,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676998324] [2023-08-29 09:37:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:37:07,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:37:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:37:07,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:37:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:37:07,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:37:07,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:37:07,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2023-08-29 09:37:07,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2023-08-29 09:37:07,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2023-08-29 09:37:07,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2023-08-29 09:37:07,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2023-08-29 09:37:07,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2023-08-29 09:37:07,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2023-08-29 09:37:07,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2023-08-29 09:37:07,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2023-08-29 09:37:07,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2023-08-29 09:37:07,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2023-08-29 09:37:07,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2023-08-29 09:37:07,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2023-08-29 09:37:07,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2023-08-29 09:37:07,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2023-08-29 09:37:07,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2023-08-29 09:37:07,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2023-08-29 09:37:07,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2023-08-29 09:37:07,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2023-08-29 09:37:07,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2023-08-29 09:37:07,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2023-08-29 09:37:07,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2023-08-29 09:37:07,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2023-08-29 09:37:07,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2023-08-29 09:37:07,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2023-08-29 09:37:07,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2023-08-29 09:37:07,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2023-08-29 09:37:07,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2023-08-29 09:37:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2023-08-29 09:37:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2023-08-29 09:37:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2023-08-29 09:37:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2023-08-29 09:37:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2023-08-29 09:37:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2023-08-29 09:37:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2023-08-29 09:37:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2023-08-29 09:37:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2023-08-29 09:37:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2023-08-29 09:37:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2023-08-29 09:37:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2023-08-29 09:37:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2023-08-29 09:37:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2023-08-29 09:37:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2023-08-29 09:37:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2023-08-29 09:37:07,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2023-08-29 09:37:07,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2023-08-29 09:37:07,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2023-08-29 09:37:07,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2023-08-29 09:37:07,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2023-08-29 09:37:07,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2023-08-29 09:37:07,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2023-08-29 09:37:07,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2023-08-29 09:37:07,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2023-08-29 09:37:07,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2023-08-29 09:37:07,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2023-08-29 09:37:07,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2023-08-29 09:37:07,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2023-08-29 09:37:07,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2023-08-29 09:37:07,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2023-08-29 09:37:07,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2023-08-29 09:37:07,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2023-08-29 09:37:07,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2023-08-29 09:37:07,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2023-08-29 09:37:07,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2023-08-29 09:37:07,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2023-08-29 09:37:07,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2023-08-29 09:37:07,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2023-08-29 09:37:07,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2023-08-29 09:37:07,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2023-08-29 09:37:07,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2023-08-29 09:37:07,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2023-08-29 09:37:07,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2023-08-29 09:37:07,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2023-08-29 09:37:07,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2023-08-29 09:37:07,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2023-08-29 09:37:07,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2023-08-29 09:37:07,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2023-08-29 09:37:07,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:37:07,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 09:37:07,475 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:37:07,475 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-29 09:37:07,571 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:37:07,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 524 transitions, 1080 flow [2023-08-29 09:37:07,728 INFO L130 PetriNetUnfolder]: 37/570 cut-off events. [2023-08-29 09:37:07,729 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 09:37:07,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 570 events. 37/570 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2226 event pairs, 0 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 504. Up to 10 conditions per place. [2023-08-29 09:37:07,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 500 places, 524 transitions, 1080 flow [2023-08-29 09:37:07,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 500 places, 524 transitions, 1080 flow [2023-08-29 09:37:07,756 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:37:07,756 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 524 transitions, 1080 flow [2023-08-29 09:37:07,756 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 524 transitions, 1080 flow [2023-08-29 09:37:07,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 524 transitions, 1080 flow [2023-08-29 09:37:07,907 INFO L130 PetriNetUnfolder]: 37/570 cut-off events. [2023-08-29 09:37:07,907 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 09:37:07,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 570 events. 37/570 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2226 event pairs, 0 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 504. Up to 10 conditions per place. [2023-08-29 09:37:07,971 INFO L119 LiptonReduction]: Number of co-enabled transitions 195816 [2023-08-29 09:37:22,643 INFO L134 LiptonReduction]: Checked pairs total: 1078543 [2023-08-29 09:37:22,643 INFO L136 LiptonReduction]: Total number of compositions: 238 [2023-08-29 09:37:22,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:37:22,645 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;@3a94407b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:37:22,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-08-29 09:37:22,647 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-29 09:37:22,648 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:37:22,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:37:22,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:37:22,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 09:37:22,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:37:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1908096865, now seen corresponding path program 1 times [2023-08-29 09:37:22,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:37:22,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688966317] [2023-08-29 09:37:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:37:22,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:37:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:37:22,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:37:22,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:37:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688966317] [2023-08-29 09:37:22,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688966317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:37:22,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:37:22,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:37:22,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319580786] [2023-08-29 09:37:22,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:37:22,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:37:22,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:37:22,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:37:22,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:37:22,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 762 [2023-08-29 09:37:22,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 341 transitions, 714 flow. Second operand has 2 states, 2 states have (on average 444.5) internal successors, (889), 2 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:37:22,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:37:22,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 762 [2023-08-29 09:37:22,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand