./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/37_stack_lock_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/37_stack_lock_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 a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 --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 09:35:08,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:35:08,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:35:08,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:35:08,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:35:08,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:35:08,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:35:08,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:35:08,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:35:08,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:35:08,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:35:08,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:35:08,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:35:08,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:35:08,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:35:08,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:35:08,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:35:08,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:35:08,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:35:08,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:35:08,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:35:08,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:35:08,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:35:08,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:35:08,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:35:08,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:35:08,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:35:08,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:35:08,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:35:08,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:35:08,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:35:08,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:35:08,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:35:08,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:35:08,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:35:08,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:35:08,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:35:08,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:35:08,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:35:08,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:35:08,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:35:08,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:35:08,575 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:35:08,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:35:08,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:35:08,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:35:08,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:35:08,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:35:08,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:35:08,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:35:08,578 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:35:08,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:35:08,578 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:35:08,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:35:08,580 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:35:08,580 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:35:08,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:35:08,580 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:35:08,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:35:08,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:35:08,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:35:08,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:35:08,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:35:08,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:35:08,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:35:08,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:35:08,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:35:08,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:35:08,582 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:35:08,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:35:08,582 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:35:08,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:35:08,582 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:35:08,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:35:08,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:35:08,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:35:08,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:35:08,827 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:35:08,827 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:35:08,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2023-08-29 09:35:09,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:35:10,084 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:35:10,084 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2023-08-29 09:35:10,095 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6df0494/d529b6fbd40a4d549ae300019567820d/FLAGd46c990e5 [2023-08-29 09:35:10,431 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6df0494/d529b6fbd40a4d549ae300019567820d [2023-08-29 09:35:10,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:35:10,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:35:10,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:35:10,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:35:10,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:35:10,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322432e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10, skipping insertion in model container [2023-08-29 09:35:10,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:35:10,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:35:10,652 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/37_stack_lock_p0_vs_concur.i[30726,30739] [2023-08-29 09:35:10,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:35:10,664 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:35:10,704 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/37_stack_lock_p0_vs_concur.i[30726,30739] [2023-08-29 09:35:10,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:35:10,728 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:35:10,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10 WrapperNode [2023-08-29 09:35:10,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:35:10,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:35:10,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:35:10,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:35:10,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,763 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 155 [2023-08-29 09:35:10,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:35:10,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:35:10,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:35:10,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:35:10,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:35:10,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:35:10,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:35:10,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:35:10,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (1/1) ... [2023-08-29 09:35:10,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:35:10,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:35:10,846 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 09:35:10,848 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 09:35:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:35:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:35:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:35:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:35:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:35:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:35:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:35:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:35:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:35:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:35:10,886 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 09:35:11,008 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:35:11,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:35:11,283 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:35:11,359 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:35:11,360 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 09:35:11,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:11 BoogieIcfgContainer [2023-08-29 09:35:11,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:35:11,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:35:11,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:35:11,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:35:11,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:35:10" (1/3) ... [2023-08-29 09:35:11,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41510309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:35:11, skipping insertion in model container [2023-08-29 09:35:11,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:10" (2/3) ... [2023-08-29 09:35:11,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41510309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:35:11, skipping insertion in model container [2023-08-29 09:35:11,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:11" (3/3) ... [2023-08-29 09:35:11,368 INFO L112 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2023-08-29 09:35:11,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:35:11,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:35:11,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-29 09:35:11,381 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:35:11,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:35:11,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 126 transitions, 257 flow [2023-08-29 09:35:11,499 INFO L130 PetriNetUnfolder]: 7/136 cut-off events. [2023-08-29 09:35:11,500 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:35:11,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 136 events. 7/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 131 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 110. Up to 4 conditions per place. [2023-08-29 09:35:11,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 126 transitions, 257 flow [2023-08-29 09:35:11,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 126 transitions, 257 flow [2023-08-29 09:35:11,512 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:35:11,519 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 126 transitions, 257 flow [2023-08-29 09:35:11,521 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 126 transitions, 257 flow [2023-08-29 09:35:11,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 126 transitions, 257 flow [2023-08-29 09:35:11,547 INFO L130 PetriNetUnfolder]: 7/136 cut-off events. [2023-08-29 09:35:11,547 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:35:11,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 136 events. 7/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 131 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 110. Up to 4 conditions per place. [2023-08-29 09:35:11,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 2548 [2023-08-29 09:35:13,827 INFO L134 LiptonReduction]: Checked pairs total: 4685 [2023-08-29 09:35:13,827 INFO L136 LiptonReduction]: Total number of compositions: 175 [2023-08-29 09:35:13,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:35:13,853 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;@42951d5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:35:13,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-29 09:35:13,855 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-29 09:35:13,855 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:35:13,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:13,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:35:13,856 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 09:35:13,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 662601486, now seen corresponding path program 1 times [2023-08-29 09:35:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114359229] [2023-08-29 09:35:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:13,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:35:14,018 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 09:35:14,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:35:14,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114359229] [2023-08-29 09:35:14,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114359229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:35:14,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:35:14,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:35:14,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528452572] [2023-08-29 09:35:14,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:35:14,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:35:14,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:35:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:35:14,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:35:14,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 301 [2023-08-29 09:35:14,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 79 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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 09:35:14,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:35:14,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 301 [2023-08-29 09:35:14,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:35:14,117 INFO L130 PetriNetUnfolder]: 18/51 cut-off events. [2023-08-29 09:35:14,117 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:35:14,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 51 events. 18/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 15 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 88. Up to 47 conditions per place. [2023-08-29 09:35:14,121 INFO L137 encePairwiseOnDemand]: 279/301 looper letters, 12 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2023-08-29 09:35:14,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 59 flow [2023-08-29 09:35:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:35:14,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:35:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 244 transitions. [2023-08-29 09:35:14,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053156146179402 [2023-08-29 09:35:14,136 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 244 transitions. [2023-08-29 09:35:14,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 244 transitions. [2023-08-29 09:35:14,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:35:14,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 244 transitions. [2023-08-29 09:35:14,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 122.0) internal successors, (244), 2 states have internal predecessors, (244), 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 09:35:14,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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 09:35:14,151 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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 09:35:14,152 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 79 flow. Second operand 2 states and 244 transitions. [2023-08-29 09:35:14,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 59 flow [2023-08-29 09:35:14,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 59 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:35:14,156 INFO L231 Difference]: Finished difference. Result has 18 places, 15 transitions, 35 flow [2023-08-29 09:35:14,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=35, PETRI_PLACES=18, PETRI_TRANSITIONS=15} [2023-08-29 09:35:14,160 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -20 predicate places. [2023-08-29 09:35:14,160 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 15 transitions, 35 flow [2023-08-29 09:35:14,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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 09:35:14,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:14,161 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 09:35:14,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:35:14,162 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 09:35:14,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:14,169 INFO L85 PathProgramCache]: Analyzing trace with hash -934066471, now seen corresponding path program 1 times [2023-08-29 09:35:14,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:14,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827152360] [2023-08-29 09:35:14,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:14,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:35:14,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:35:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:35:14,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:35:14,233 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:35:14,234 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-08-29 09:35:14,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-08-29 09:35:14,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-08-29 09:35:14,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-08-29 09:35:14,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-08-29 09:35:14,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-08-29 09:35:14,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-08-29 09:35:14,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-08-29 09:35:14,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-08-29 09:35:14,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-08-29 09:35:14,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-08-29 09:35:14,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-08-29 09:35:14,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-08-29 09:35:14,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-08-29 09:35:14,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-08-29 09:35:14,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-08-29 09:35:14,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-08-29 09:35:14,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-08-29 09:35:14,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-08-29 09:35:14,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-08-29 09:35:14,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-08-29 09:35:14,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-08-29 09:35:14,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-08-29 09:35:14,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-08-29 09:35:14,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-08-29 09:35:14,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-08-29 09:35:14,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-08-29 09:35:14,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-08-29 09:35:14,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-08-29 09:35:14,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-08-29 09:35:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-08-29 09:35:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-08-29 09:35:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-08-29 09:35:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-08-29 09:35:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-08-29 09:35:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-08-29 09:35:14,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-08-29 09:35:14,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-08-29 09:35:14,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-08-29 09:35:14,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:35:14,261 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 09:35:14,263 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:35:14,263 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 09:35:14,328 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:35:14,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 225 transitions, 462 flow [2023-08-29 09:35:14,388 INFO L130 PetriNetUnfolder]: 13/247 cut-off events. [2023-08-29 09:35:14,404 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:35:14,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 247 events. 13/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 545 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 208. Up to 6 conditions per place. [2023-08-29 09:35:14,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 225 transitions, 462 flow [2023-08-29 09:35:14,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 225 transitions, 462 flow [2023-08-29 09:35:14,410 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:35:14,410 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 225 transitions, 462 flow [2023-08-29 09:35:14,410 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 225 transitions, 462 flow [2023-08-29 09:35:14,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 225 transitions, 462 flow [2023-08-29 09:35:14,436 INFO L130 PetriNetUnfolder]: 13/247 cut-off events. [2023-08-29 09:35:14,437 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:35:14,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 247 events. 13/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 545 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 208. Up to 6 conditions per place. [2023-08-29 09:35:14,445 INFO L119 LiptonReduction]: Number of co-enabled transitions 24500 [2023-08-29 09:35:15,755 INFO L134 LiptonReduction]: Checked pairs total: 133196 [2023-08-29 09:35:15,756 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-08-29 09:35:15,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:35:15,763 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;@42951d5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:35:15,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-29 09:35:15,765 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-29 09:35:15,766 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:35:15,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:15,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:35:15,767 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 09:35:15,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:15,767 INFO L85 PathProgramCache]: Analyzing trace with hash 890219074, now seen corresponding path program 1 times [2023-08-29 09:35:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:15,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257147261] [2023-08-29 09:35:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:35:15,811 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 09:35:15,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:35:15,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257147261] [2023-08-29 09:35:15,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257147261] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:35:15,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:35:15,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:35:15,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233594650] [2023-08-29 09:35:15,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:35:15,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:35:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:35:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:35:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:35:15,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 331 [2023-08-29 09:35:15,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 148 transitions, 308 flow. Second operand has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 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 09:35:15,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:35:15,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 331 [2023-08-29 09:35:15,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:35:16,145 INFO L130 PetriNetUnfolder]: 968/3049 cut-off events. [2023-08-29 09:35:16,145 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2023-08-29 09:35:16,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4626 conditions, 3049 events. 968/3049 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 23707 event pairs, 832 based on Foata normal form. 103/2831 useless extension candidates. Maximal degree in co-relation 2757. Up to 1511 conditions per place. [2023-08-29 09:35:16,159 INFO L137 encePairwiseOnDemand]: 305/331 looper letters, 36 selfloop transitions, 0 changer transitions 0/121 dead transitions. [2023-08-29 09:35:16,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 121 transitions, 326 flow [2023-08-29 09:35:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:35:16,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:35:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 432 transitions. [2023-08-29 09:35:16,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6525679758308157 [2023-08-29 09:35:16,163 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 432 transitions. [2023-08-29 09:35:16,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 432 transitions. [2023-08-29 09:35:16,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:35:16,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 432 transitions. [2023-08-29 09:35:16,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 216.0) internal successors, (432), 2 states have internal predecessors, (432), 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 09:35:16,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 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 09:35:16,168 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 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 09:35:16,169 INFO L175 Difference]: Start difference. First operand has 146 places, 148 transitions, 308 flow. Second operand 2 states and 432 transitions. [2023-08-29 09:35:16,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 121 transitions, 326 flow [2023-08-29 09:35:16,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 121 transitions, 324 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-29 09:35:16,173 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 252 flow [2023-08-29 09:35:16,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=252, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-08-29 09:35:16,174 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -23 predicate places. [2023-08-29 09:35:16,174 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 252 flow [2023-08-29 09:35:16,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 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 09:35:16,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:16,175 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 09:35:16,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:35:16,178 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 09:35:16,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash -268805529, now seen corresponding path program 1 times [2023-08-29 09:35:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868325185] [2023-08-29 09:35:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:16,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:35:16,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:35:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:35:16,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:35:16,230 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:35:16,234 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2023-08-29 09:35:16,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2023-08-29 09:35:16,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2023-08-29 09:35:16,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2023-08-29 09:35:16,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2023-08-29 09:35:16,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2023-08-29 09:35:16,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2023-08-29 09:35:16,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2023-08-29 09:35:16,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2023-08-29 09:35:16,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2023-08-29 09:35:16,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2023-08-29 09:35:16,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2023-08-29 09:35:16,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2023-08-29 09:35:16,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2023-08-29 09:35:16,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2023-08-29 09:35:16,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2023-08-29 09:35:16,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2023-08-29 09:35:16,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2023-08-29 09:35:16,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2023-08-29 09:35:16,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2023-08-29 09:35:16,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2023-08-29 09:35:16,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2023-08-29 09:35:16,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2023-08-29 09:35:16,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2023-08-29 09:35:16,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2023-08-29 09:35:16,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2023-08-29 09:35:16,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2023-08-29 09:35:16,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2023-08-29 09:35:16,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:35:16,248 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 09:35:16,248 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:35:16,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 09:35:16,298 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:35:16,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 324 transitions, 669 flow [2023-08-29 09:35:16,342 INFO L130 PetriNetUnfolder]: 19/358 cut-off events. [2023-08-29 09:35:16,342 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:35:16,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 358 events. 19/358 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1124 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 306. Up to 8 conditions per place. [2023-08-29 09:35:16,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 324 transitions, 669 flow [2023-08-29 09:35:16,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 324 transitions, 669 flow [2023-08-29 09:35:16,373 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:35:16,374 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 324 transitions, 669 flow [2023-08-29 09:35:16,374 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 324 transitions, 669 flow [2023-08-29 09:35:16,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 324 transitions, 669 flow [2023-08-29 09:35:16,409 INFO L130 PetriNetUnfolder]: 19/358 cut-off events. [2023-08-29 09:35:16,409 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:35:16,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 358 events. 19/358 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1124 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 306. Up to 8 conditions per place. [2023-08-29 09:35:16,425 INFO L119 LiptonReduction]: Number of co-enabled transitions 65856 [2023-08-29 09:35:17,791 INFO L134 LiptonReduction]: Checked pairs total: 367197 [2023-08-29 09:35:17,793 INFO L136 LiptonReduction]: Total number of compositions: 141 [2023-08-29 09:35:17,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:35:17,795 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;@42951d5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:35:17,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2023-08-29 09:35:17,797 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-29 09:35:17,798 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:35:17,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:17,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:35:17,798 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 09:35:17,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:17,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1829962408, now seen corresponding path program 1 times [2023-08-29 09:35:17,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626122486] [2023-08-29 09:35:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:35:17,823 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 09:35:17,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:35:17,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626122486] [2023-08-29 09:35:17,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626122486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:35:17,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:35:17,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:35:17,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113676564] [2023-08-29 09:35:17,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:35:17,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:35:17,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:35:17,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:35:17,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:35:17,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 465 [2023-08-29 09:35:17,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 214 transitions, 449 flow. Second operand has 2 states, 2 states have (on average 267.5) internal successors, (535), 2 states have internal predecessors, (535), 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 09:35:17,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:35:17,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 465 [2023-08-29 09:35:17,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:35:22,617 INFO L130 PetriNetUnfolder]: 24776/54808 cut-off events. [2023-08-29 09:35:22,618 INFO L131 PetriNetUnfolder]: For 1726/1726 co-relation queries the response was YES. [2023-08-29 09:35:22,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90044 conditions, 54808 events. 24776/54808 cut-off events. For 1726/1726 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 587032 event pairs, 22498 based on Foata normal form. 4078/53364 useless extension candidates. Maximal degree in co-relation 51257. Up to 34034 conditions per place. [2023-08-29 09:35:22,938 INFO L137 encePairwiseOnDemand]: 428/465 looper letters, 52 selfloop transitions, 0 changer transitions 0/176 dead transitions. [2023-08-29 09:35:22,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 176 transitions, 477 flow [2023-08-29 09:35:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:35:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:35:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 619 transitions. [2023-08-29 09:35:22,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6655913978494624 [2023-08-29 09:35:22,941 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 619 transitions. [2023-08-29 09:35:22,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 619 transitions. [2023-08-29 09:35:22,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:35:22,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 619 transitions. [2023-08-29 09:35:22,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 309.5) internal successors, (619), 2 states have internal predecessors, (619), 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 09:35:22,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 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 09:35:22,948 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 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 09:35:22,951 INFO L175 Difference]: Start difference. First operand has 214 places, 214 transitions, 449 flow. Second operand 2 states and 619 transitions. [2023-08-29 09:35:22,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 176 transitions, 477 flow [2023-08-29 09:35:22,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 176 transitions, 471 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-29 09:35:22,959 INFO L231 Difference]: Finished difference. Result has 180 places, 176 transitions, 367 flow [2023-08-29 09:35:22,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=367, PETRI_PLACES=180, PETRI_TRANSITIONS=176} [2023-08-29 09:35:22,960 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -34 predicate places. [2023-08-29 09:35:22,960 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 176 transitions, 367 flow [2023-08-29 09:35:22,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 267.5) internal successors, (535), 2 states have internal predecessors, (535), 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 09:35:22,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:22,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:35:22,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:35:22,961 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 09:35:22,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash 708188353, now seen corresponding path program 1 times [2023-08-29 09:35:22,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:22,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129310762] [2023-08-29 09:35:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:22,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:35:23,270 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 09:35:23,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:35:23,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129310762] [2023-08-29 09:35:23,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129310762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:35:23,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:35:23,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:35:23,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645954452] [2023-08-29 09:35:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:35:23,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:35:23,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:35:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:35:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:35:23,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 465 [2023-08-29 09:35:23,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 176 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 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 09:35:23,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:35:23,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 465 [2023-08-29 09:35:23,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:35:42,547 INFO L130 PetriNetUnfolder]: 118827/226482 cut-off events. [2023-08-29 09:35:42,548 INFO L131 PetriNetUnfolder]: For 3942/3942 co-relation queries the response was YES. [2023-08-29 09:35:43,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395575 conditions, 226482 events. 118827/226482 cut-off events. For 3942/3942 co-relation queries the response was YES. Maximal size of possible extension queue 4132. Compared 2622238 event pairs, 37162 based on Foata normal form. 0/207623 useless extension candidates. Maximal degree in co-relation 395569. Up to 80791 conditions per place. [2023-08-29 09:35:43,891 INFO L137 encePairwiseOnDemand]: 438/465 looper letters, 225 selfloop transitions, 29 changer transitions 0/355 dead transitions. [2023-08-29 09:35:43,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 355 transitions, 1273 flow [2023-08-29 09:35:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:35:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:35:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1686 transitions. [2023-08-29 09:35:43,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6043010752688172 [2023-08-29 09:35:43,894 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1686 transitions. [2023-08-29 09:35:43,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1686 transitions. [2023-08-29 09:35:43,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:35:43,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1686 transitions. [2023-08-29 09:35:43,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 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 09:35:43,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 09:35:43,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 09:35:43,902 INFO L175 Difference]: Start difference. First operand has 180 places, 176 transitions, 367 flow. Second operand 6 states and 1686 transitions. [2023-08-29 09:35:43,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 355 transitions, 1273 flow [2023-08-29 09:35:43,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 355 transitions, 1273 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:35:43,912 INFO L231 Difference]: Finished difference. Result has 190 places, 204 transitions, 591 flow [2023-08-29 09:35:43,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=591, PETRI_PLACES=190, PETRI_TRANSITIONS=204} [2023-08-29 09:35:43,915 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -24 predicate places. [2023-08-29 09:35:43,917 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 204 transitions, 591 flow [2023-08-29 09:35:43,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 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 09:35:43,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:43,918 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-29 09:35:43,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:35:43,918 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 09:35:43,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:43,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1552351697, now seen corresponding path program 1 times [2023-08-29 09:35:43,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:43,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885706288] [2023-08-29 09:35:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:43,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:35:43,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:35:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:35:43,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:35:43,948 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:35:43,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2023-08-29 09:35:43,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2023-08-29 09:35:43,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2023-08-29 09:35:43,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2023-08-29 09:35:43,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2023-08-29 09:35:43,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2023-08-29 09:35:43,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2023-08-29 09:35:43,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2023-08-29 09:35:43,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2023-08-29 09:35:43,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2023-08-29 09:35:43,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2023-08-29 09:35:43,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2023-08-29 09:35:43,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2023-08-29 09:35:43,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2023-08-29 09:35:43,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2023-08-29 09:35:43,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2023-08-29 09:35:43,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2023-08-29 09:35:43,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2023-08-29 09:35:43,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2023-08-29 09:35:43,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2023-08-29 09:35:43,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2023-08-29 09:35:43,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:35:43,958 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 09:35:43,959 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:35:43,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-29 09:35:44,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:35:44,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 411 places, 423 transitions, 878 flow [2023-08-29 09:35:44,076 INFO L130 PetriNetUnfolder]: 25/469 cut-off events. [2023-08-29 09:35:44,076 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 09:35:44,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 469 events. 25/469 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1774 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 404. Up to 10 conditions per place. [2023-08-29 09:35:44,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 411 places, 423 transitions, 878 flow [2023-08-29 09:35:44,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 411 places, 423 transitions, 878 flow [2023-08-29 09:35:44,087 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:35:44,087 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 423 transitions, 878 flow [2023-08-29 09:35:44,087 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 423 transitions, 878 flow [2023-08-29 09:35:44,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 411 places, 423 transitions, 878 flow [2023-08-29 09:35:44,313 INFO L130 PetriNetUnfolder]: 25/469 cut-off events. [2023-08-29 09:35:44,313 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 09:35:44,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 469 events. 25/469 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1774 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 404. Up to 10 conditions per place. [2023-08-29 09:35:44,357 INFO L119 LiptonReduction]: Number of co-enabled transitions 126616 [2023-08-29 09:35:46,393 INFO L134 LiptonReduction]: Checked pairs total: 752014 [2023-08-29 09:35:46,394 INFO L136 LiptonReduction]: Total number of compositions: 188 [2023-08-29 09:35:46,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:35:46,396 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;@42951d5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:35:46,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-08-29 09:35:46,398 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-29 09:35:46,398 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:35:46,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:35:46,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:35:46,399 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 09:35:46,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:35:46,399 INFO L85 PathProgramCache]: Analyzing trace with hash 372549179, now seen corresponding path program 1 times [2023-08-29 09:35:46,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:35:46,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086659614] [2023-08-29 09:35:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:35:46,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:35:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:35:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:35:46,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:35:46,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086659614] [2023-08-29 09:35:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086659614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:35:46,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:35:46,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:35:46,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126593557] [2023-08-29 09:35:46,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:35:46,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:35:46,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:35:46,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:35:46,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:35:46,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 611 [2023-08-29 09:35:46,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 292 transitions, 616 flow. Second operand has 2 states, 2 states have (on average 347.5) internal successors, (695), 2 states have internal predecessors, (695), 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 09:35:46,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:35:46,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 611 [2023-08-29 09:35:46,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand