./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.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 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:54:46,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:54:46,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:54:46,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:54:46,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:54:46,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:54:46,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:54:46,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:54:46,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:54:46,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:54:46,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:54:46,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:54:46,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:54:46,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:54:46,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:54:46,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:54:46,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:54:46,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:54:46,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:54:46,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:54:46,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:54:46,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:54:46,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:54:46,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:54:46,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:54:46,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:54:46,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:54:46,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:54:46,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:54:46,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:54:46,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:54:46,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:54:46,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:54:46,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:54:46,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:54:46,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:54:46,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:54:46,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:54:46,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:54:46,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:54:46,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:54:46,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:54:46,851 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:54:46,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:54:46,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:54:46,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:54:46,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:54:46,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:54:46,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:54:46,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:54:46,855 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:54:46,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:54:46,856 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:54:46,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:54:46,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:54:46,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:54:46,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:54:46,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:54:46,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:54:46,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:54:46,858 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:54:46,858 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:54:46,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:54:46,858 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:54:46,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:54:46,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:54:46,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:54:46,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:54:46,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:54:46,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:54:46,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:54:46,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:54:46,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:54:46,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:54:46,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:54:46,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:54:46,861 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:54:46,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:54:46,861 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:54:46,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:54:47,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:54:47,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:54:47,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:54:47,196 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:54:47,196 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:54:47,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-08-31 19:54:48,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:54:48,627 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:54:48,628 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-08-31 19:54:48,643 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86d6a5ca/d9c8b57dc639480fa84d3267c4b6d9f0/FLAG4b49a64ad [2023-08-31 19:54:48,657 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86d6a5ca/d9c8b57dc639480fa84d3267c4b6d9f0 [2023-08-31 19:54:48,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:54:48,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:54:48,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:54:48,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:54:48,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:54:48,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:54:48" (1/1) ... [2023-08-31 19:54:48,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd849c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:48, skipping insertion in model container [2023-08-31 19:54:48,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:54:48" (1/1) ... [2023-08-31 19:54:48,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:54:48,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:54:48,877 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-C-DAC/pthread-demo-datarace-1.i[820,833] [2023-08-31 19:54:49,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:54:49,271 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:54:49,283 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-C-DAC/pthread-demo-datarace-1.i[820,833] [2023-08-31 19:54:49,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:54:49,424 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:54:49,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49 WrapperNode [2023-08-31 19:54:49,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:54:49,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:54:49,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:54:49,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:54:49,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,498 INFO L138 Inliner]: procedures = 364, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2023-08-31 19:54:49,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:54:49,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:54:49,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:54:49,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:54:49,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:54:49,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:54:49,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:54:49,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:54:49,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (1/1) ... [2023-08-31 19:54:49,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:54:49,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:54:49,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:54:49,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:54:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:54:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:54:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:54:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:54:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:54:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:54:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2023-08-31 19:54:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2023-08-31 19:54:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:54:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:54:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:54:49,635 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:54:49,816 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:54:49,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:54:50,028 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:54:50,035 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:54:50,036 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-31 19:54:50,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:54:50 BoogieIcfgContainer [2023-08-31 19:54:50,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:54:50,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:54:50,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:54:50,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:54:50,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:54:48" (1/3) ... [2023-08-31 19:54:50,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8e9865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:54:50, skipping insertion in model container [2023-08-31 19:54:50,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:54:49" (2/3) ... [2023-08-31 19:54:50,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8e9865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:54:50, skipping insertion in model container [2023-08-31 19:54:50,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:54:50" (3/3) ... [2023-08-31 19:54:50,047 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2023-08-31 19:54:50,055 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:54:50,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:54:50,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-31 19:54:50,063 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:54:50,140 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:54:50,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 115 transitions, 238 flow [2023-08-31 19:54:50,241 INFO L130 PetriNetUnfolder]: 7/114 cut-off events. [2023-08-31 19:54:50,241 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:54:50,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 7/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-08-31 19:54:50,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 115 transitions, 238 flow [2023-08-31 19:54:50,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 101 transitions, 208 flow [2023-08-31 19:54:50,254 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:54:50,268 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 101 transitions, 208 flow [2023-08-31 19:54:50,270 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 101 transitions, 208 flow [2023-08-31 19:54:50,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 101 transitions, 208 flow [2023-08-31 19:54:50,287 INFO L130 PetriNetUnfolder]: 6/101 cut-off events. [2023-08-31 19:54:50,287 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:54:50,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 6/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-08-31 19:54:50,289 INFO L119 LiptonReduction]: Number of co-enabled transitions 1782 [2023-08-31 19:54:52,194 INFO L134 LiptonReduction]: Checked pairs total: 4184 [2023-08-31 19:54:52,195 INFO L136 LiptonReduction]: Total number of compositions: 83 [2023-08-31 19:54:52,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:54:52,212 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;@65521039, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:54:52,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-31 19:54:52,214 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-31 19:54:52,214 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:54:52,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:54:52,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:54:52,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-31 19:54:52,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:54:52,219 INFO L85 PathProgramCache]: Analyzing trace with hash 405, now seen corresponding path program 1 times [2023-08-31 19:54:52,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:54:52,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865101762] [2023-08-31 19:54:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:54:52,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:54:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:54:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:54:52,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:54:52,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865101762] [2023-08-31 19:54:52,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865101762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:54:52,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:54:52,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:54:52,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488868891] [2023-08-31 19:54:52,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:54:52,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:54:52,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:54:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:54:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:54:52,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 198 [2023-08-31 19:54:52,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:54:52,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 198 [2023-08-31 19:54:52,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:54:52,430 INFO L130 PetriNetUnfolder]: 57/161 cut-off events. [2023-08-31 19:54:52,431 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:54:52,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 161 events. 57/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 615 event pairs, 42 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 270. Up to 116 conditions per place. [2023-08-31 19:54:52,435 INFO L137 encePairwiseOnDemand]: 195/198 looper letters, 17 selfloop transitions, 0 changer transitions 1/26 dead transitions. [2023-08-31 19:54:52,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 94 flow [2023-08-31 19:54:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:54:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:54:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 231 transitions. [2023-08-31 19:54:52,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-31 19:54:52,450 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 231 transitions. [2023-08-31 19:54:52,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 231 transitions. [2023-08-31 19:54:52,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:54:52,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 231 transitions. [2023-08-31 19:54:52,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,468 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,469 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 64 flow. Second operand 2 states and 231 transitions. [2023-08-31 19:54:52,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 94 flow [2023-08-31 19:54:52,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:54:52,474 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 51 flow [2023-08-31 19:54:52,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=54, 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=51, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2023-08-31 19:54:52,479 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-08-31 19:54:52,480 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 51 flow [2023-08-31 19:54:52,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:54:52,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:54:52,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:54:52,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-31 19:54:52,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:54:52,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1040237939, now seen corresponding path program 1 times [2023-08-31 19:54:52,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:54:52,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227317752] [2023-08-31 19:54:52,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:54:52,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:54:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:54:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:54:52,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:54:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227317752] [2023-08-31 19:54:52,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227317752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:54:52,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:54:52,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:54:52,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450781916] [2023-08-31 19:54:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:54:52,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:54:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:54:52,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:54:52,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:54:52,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 198 [2023-08-31 19:54:52,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:54:52,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 198 [2023-08-31 19:54:52,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:54:52,728 INFO L130 PetriNetUnfolder]: 136/295 cut-off events. [2023-08-31 19:54:52,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:54:52,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 295 events. 136/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1119 event pairs, 42 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 575. Up to 155 conditions per place. [2023-08-31 19:54:52,731 INFO L137 encePairwiseOnDemand]: 190/198 looper letters, 36 selfloop transitions, 6 changer transitions 0/44 dead transitions. [2023-08-31 19:54:52,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 44 transitions, 173 flow [2023-08-31 19:54:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:54:52,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:54:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-08-31 19:54:52,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437710437710438 [2023-08-31 19:54:52,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-08-31 19:54:52,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-08-31 19:54:52,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:54:52,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-08-31 19:54:52,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,741 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,741 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 51 flow. Second operand 3 states and 323 transitions. [2023-08-31 19:54:52,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 44 transitions, 173 flow [2023-08-31 19:54:52,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 44 transitions, 173 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:54:52,743 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 103 flow [2023-08-31 19:54:52,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2023-08-31 19:54:52,744 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-31 19:54:52,744 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 103 flow [2023-08-31 19:54:52,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:54:52,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:54:52,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:54:52,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-31 19:54:52,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:54:52,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2117159961, now seen corresponding path program 1 times [2023-08-31 19:54:52,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:54:52,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410592169] [2023-08-31 19:54:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:54:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:54:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:54:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:54:52,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:54:52,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410592169] [2023-08-31 19:54:52,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410592169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:54:52,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:54:52,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:54:52,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974009619] [2023-08-31 19:54:52,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:54:52,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:54:52,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:54:52,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:54:52,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:54:52,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 198 [2023-08-31 19:54:52,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:54:52,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 198 [2023-08-31 19:54:52,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:54:52,887 INFO L130 PetriNetUnfolder]: 127/284 cut-off events. [2023-08-31 19:54:52,887 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-08-31 19:54:52,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 284 events. 127/284 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1071 event pairs, 62 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 673. Up to 230 conditions per place. [2023-08-31 19:54:52,890 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 28 selfloop transitions, 6 changer transitions 1/42 dead transitions. [2023-08-31 19:54:52,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 42 transitions, 205 flow [2023-08-31 19:54:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:54:52,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:54:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-08-31 19:54:52,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5269360269360269 [2023-08-31 19:54:52,892 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-08-31 19:54:52,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-08-31 19:54:52,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:54:52,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-08-31 19:54:52,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,899 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 103 flow. Second operand 3 states and 313 transitions. [2023-08-31 19:54:52,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 42 transitions, 205 flow [2023-08-31 19:54:52,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:54:52,902 INFO L231 Difference]: Finished difference. Result has 31 places, 35 transitions, 133 flow [2023-08-31 19:54:52,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=31, PETRI_TRANSITIONS=35} [2023-08-31 19:54:52,903 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-31 19:54:52,903 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 35 transitions, 133 flow [2023-08-31 19:54:52,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:52,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:54:52,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:54:52,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:54:52,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-31 19:54:52,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:54:52,905 INFO L85 PathProgramCache]: Analyzing trace with hash -465473912, now seen corresponding path program 1 times [2023-08-31 19:54:52,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:54:52,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003435787] [2023-08-31 19:54:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:54:52,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:54:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:54:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:54:52,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:54:52,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003435787] [2023-08-31 19:54:52,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003435787] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:54:52,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:54:52,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:54:52,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697812905] [2023-08-31 19:54:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:54:52,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:54:52,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:54:52,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:54:52,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:54:53,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 198 [2023-08-31 19:54:53,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 35 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:54:53,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 198 [2023-08-31 19:54:53,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:54:53,070 INFO L130 PetriNetUnfolder]: 138/295 cut-off events. [2023-08-31 19:54:53,070 INFO L131 PetriNetUnfolder]: For 123/128 co-relation queries the response was YES. [2023-08-31 19:54:53,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 295 events. 138/295 cut-off events. For 123/128 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1070 event pairs, 59 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 744. Up to 247 conditions per place. [2023-08-31 19:54:53,072 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 29 selfloop transitions, 8 changer transitions 1/45 dead transitions. [2023-08-31 19:54:53,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 45 transitions, 243 flow [2023-08-31 19:54:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:54:53,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:54:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2023-08-31 19:54:53,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2023-08-31 19:54:53,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2023-08-31 19:54:53,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2023-08-31 19:54:53,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:54:53,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2023-08-31 19:54:53,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,082 INFO L175 Difference]: Start difference. First operand has 31 places, 35 transitions, 133 flow. Second operand 3 states and 315 transitions. [2023-08-31 19:54:53,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 45 transitions, 243 flow [2023-08-31 19:54:53,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:54:53,086 INFO L231 Difference]: Finished difference. Result has 33 places, 39 transitions, 179 flow [2023-08-31 19:54:53,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=33, PETRI_TRANSITIONS=39} [2023-08-31 19:54:53,087 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-08-31 19:54:53,087 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 39 transitions, 179 flow [2023-08-31 19:54:53,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:54:53,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:54:53,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:54:53,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-31 19:54:53,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:54:53,088 INFO L85 PathProgramCache]: Analyzing trace with hash -237652480, now seen corresponding path program 1 times [2023-08-31 19:54:53,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:54:53,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559860654] [2023-08-31 19:54:53,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:54:53,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:54:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:54:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:54:53,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:54:53,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559860654] [2023-08-31 19:54:53,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559860654] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:54:53,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:54:53,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:54:53,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396746297] [2023-08-31 19:54:53,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:54:53,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:54:53,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:54:53,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:54:53,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:54:53,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 198 [2023-08-31 19:54:53,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 39 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:54:53,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 198 [2023-08-31 19:54:53,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:54:53,252 INFO L130 PetriNetUnfolder]: 28/77 cut-off events. [2023-08-31 19:54:53,252 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-31 19:54:53,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 77 events. 28/77 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 217 event pairs, 4 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 188. Up to 45 conditions per place. [2023-08-31 19:54:53,253 INFO L137 encePairwiseOnDemand]: 194/198 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-08-31 19:54:53,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 123 flow [2023-08-31 19:54:53,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:54:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:54:53,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-08-31 19:54:53,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437710437710438 [2023-08-31 19:54:53,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-08-31 19:54:53,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-08-31 19:54:53,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:54:53,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-08-31 19:54:53,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,262 INFO L175 Difference]: Start difference. First operand has 33 places, 39 transitions, 179 flow. Second operand 3 states and 323 transitions. [2023-08-31 19:54:53,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 123 flow [2023-08-31 19:54:53,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 93 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-31 19:54:53,266 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-08-31 19:54:53,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-08-31 19:54:53,269 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2023-08-31 19:54:53,269 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-08-31 19:54:53,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:54:53,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-08-31 19:54:53,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-31 19:54:53,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-08-31 19:54:53,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-08-31 19:54:53,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-31 19:54:53,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-31 19:54:53,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-31 19:54:53,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-31 19:54:53,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-31 19:54:53,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-31 19:54:53,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:54:53,277 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 19:54:53,281 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:54:53,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:54:53,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:54:53 BasicIcfg [2023-08-31 19:54:53,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:54:53,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:54:53,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:54:53,285 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:54:53,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:54:50" (3/4) ... [2023-08-31 19:54:53,288 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:54:53,293 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2023-08-31 19:54:53,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-31 19:54:53,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 19:54:53,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 19:54:53,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 19:54:53,339 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:54:53,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:54:53,340 INFO L158 Benchmark]: Toolchain (without parser) took 4678.01ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 70.3MB in the beginning and 86.2MB in the end (delta: -15.9MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,340 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:54:53,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.97ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 54.7MB in the end (delta: 15.4MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.03ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 52.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,341 INFO L158 Benchmark]: Boogie Preprocessor took 50.54ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 50.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,341 INFO L158 Benchmark]: RCFGBuilder took 488.51ms. Allocated memory is still 94.4MB. Free memory was 50.5MB in the beginning and 62.9MB in the end (delta: -12.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,341 INFO L158 Benchmark]: TraceAbstraction took 3243.60ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 62.0MB in the beginning and 42.8MB in the end (delta: 19.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,342 INFO L158 Benchmark]: Witness Printer took 54.18ms. Allocated memory is still 113.2MB. Free memory was 41.9MB in the beginning and 86.2MB in the end (delta: -44.3MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-08-31 19:54:53,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.97ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 54.7MB in the end (delta: 15.4MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.03ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 52.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.54ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 50.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.51ms. Allocated memory is still 94.4MB. Free memory was 50.5MB in the beginning and 62.9MB in the end (delta: -12.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3243.60ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 62.0MB in the beginning and 42.8MB in the end (delta: 19.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Witness Printer took 54.18ms. Allocated memory is still 113.2MB. Free memory was 41.9MB in the beginning and 86.2MB in the end (delta: -44.3MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 99 PlacesBefore, 31 PlacesAfterwards, 101 TransitionsBefore, 29 TransitionsAfterwards, 1782 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 83 TotalNumberOfCompositions, 4184 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2183, independent: 1970, independent conditional: 0, independent unconditional: 1970, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 948, independent: 921, independent conditional: 0, independent unconditional: 921, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2183, independent: 1049, independent conditional: 0, independent unconditional: 1049, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 948, unknown conditional: 0, unknown unconditional: 948] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1342]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1350]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1353]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1350]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1357]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1326]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1329]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 136 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 276 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 7 mSDtfsCounter, 276 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 19:54:53,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE