/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.trace.refinement.strategy BADGER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-44940e9-m [2022-11-09 19:11:15,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-09 19:11:15,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-09 19:11:15,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-11-09 19:11:15,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-09 19:11:15,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-09 19:11:15,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-09 19:11:15,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-09 19:11:15,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-09 19:11:15,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-09 19:11:15,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-09 19:11:15,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-09 19:11:15,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-09 19:11:15,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-09 19:11:15,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-09 19:11:15,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-09 19:11:15,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-09 19:11:15,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-09 19:11:15,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-09 19:11:15,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-09 19:11:15,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-09 19:11:15,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-09 19:11:15,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-09 19:11:15,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-09 19:11:15,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-09 19:11:15,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-09 19:11:15,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-09 19:11:15,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-09 19:11:15,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-09 19:11:15,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-09 19:11:15,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-09 19:11:15,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-09 19:11:15,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-09 19:11:15,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-09 19:11:15,487 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-09 19:11:15,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-09 19:11:15,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-09 19:11:15,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-09 19:11:15,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-09 19:11:15,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-09 19:11:15,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-09 19:11:15,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-09 19:11:15,488 INFO L138 SettingsManager]: * Use SBE=true [2022-11-09 19:11:15,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-09 19:11:15,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-09 19:11:15,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-09 19:11:15,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 19:11:15,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-09 19:11:15,491 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-09 19:11:15,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-11-09 19:11:15,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-09 19:11:15,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-09 19:11:15,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-09 19:11:15,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-09 19:11:15,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-09 19:11:15,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-11-09 19:11:15,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945b91880/072d8000631545958db3a6af820f1b40/FLAGae1b2c281 [2022-11-09 19:11:16,142 INFO L306 CDTParser]: Found 1 translation units. [2022-11-09 19:11:16,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-11-09 19:11:16,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945b91880/072d8000631545958db3a6af820f1b40/FLAGae1b2c281 [2022-11-09 19:11:16,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945b91880/072d8000631545958db3a6af820f1b40 [2022-11-09 19:11:16,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-09 19:11:16,178 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-09 19:11:16,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-09 19:11:16,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-09 19:11:16,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-09 19:11:16,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfc5f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16, skipping insertion in model container [2022-11-09 19:11:16,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-09 19:11:16,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-09 19:11:16,333 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-09 19:11:16,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-09 19:11:16,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-09 19:11:16,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-09 19:11:16,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 19:11:16,489 INFO L203 MainTranslator]: Completed pre-run [2022-11-09 19:11:16,497 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-09 19:11:16,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-09 19:11:16,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-09 19:11:16,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-09 19:11:16,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 19:11:16,562 INFO L208 MainTranslator]: Completed translation [2022-11-09 19:11:16,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16 WrapperNode [2022-11-09 19:11:16,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-09 19:11:16,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-09 19:11:16,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-09 19:11:16,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-09 19:11:16,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,631 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 217 [2022-11-09 19:11:16,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-09 19:11:16,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-09 19:11:16,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-09 19:11:16,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-09 19:11:16,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-09 19:11:16,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-09 19:11:16,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-09 19:11:16,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-09 19:11:16,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (1/1) ... [2022-11-09 19:11:16,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 19:11:16,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 19:11:16,715 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) [2022-11-09 19:11:16,743 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 [2022-11-09 19:11:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-11-09 19:11:16,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-11-09 19:11:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-09 19:11:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-09 19:11:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-09 19:11:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-09 19:11:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-09 19:11:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-09 19:11:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-09 19:11:16,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-09 19:11:16,765 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-09 19:11:16,852 INFO L235 CfgBuilder]: Building ICFG [2022-11-09 19:11:16,853 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-09 19:11:17,182 INFO L276 CfgBuilder]: Performing block encoding [2022-11-09 19:11:17,188 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-09 19:11:17,189 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-09 19:11:17,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:11:17 BoogieIcfgContainer [2022-11-09 19:11:17,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-09 19:11:17,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-09 19:11:17,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-09 19:11:17,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-09 19:11:17,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:11:16" (1/3) ... [2022-11-09 19:11:17,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c012ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:11:17, skipping insertion in model container [2022-11-09 19:11:17,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:16" (2/3) ... [2022-11-09 19:11:17,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c012ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:11:17, skipping insertion in model container [2022-11-09 19:11:17,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:11:17" (3/3) ... [2022-11-09 19:11:17,197 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-11-09 19:11:17,204 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-09 19:11:17,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-09 19:11:17,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-09 19:11:17,211 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-09 19:11:17,332 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-09 19:11:17,375 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 19:11:17,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-09 19:11:17,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 19:11:17,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-09 19:11:17,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-09 19:11:17,402 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-09 19:11:17,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_fnThread1of1ForFork0 ======== [2022-11-09 19:11:17,415 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=PARTIAL_ORDER_FA, 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;@1839759a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 19:11:17,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-09 19:11:17,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_fnErr6ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash 680632655, now seen corresponding path program 1 times [2022-11-09 19:11:17,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:17,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684635] [2022-11-09 19:11:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:17,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:17,790 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:17,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684635] [2022-11-09 19:11:17,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:17,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:17,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-09 19:11:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731417867] [2022-11-09 19:11:17,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:17,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-09 19:11:17,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:17,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-09 19:11:17,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-09 19:11:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:17,863 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:17,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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) [2022-11-09 19:11:17,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:17,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-09 19:11:17,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:17,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:17,940 INFO L85 PathProgramCache]: Analyzing trace with hash -20151938, now seen corresponding path program 1 times [2022-11-09 19:11:17,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:17,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654479400] [2022-11-09 19:11:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:17,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:18,291 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:18,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654479400] [2022-11-09 19:11:18,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654479400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:18,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:18,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-09 19:11:18,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661700025] [2022-11-09 19:11:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:18,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-09 19:11:18,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-09 19:11:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-09 19:11:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,293 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:18,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2022-11-09 19:11:18,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:18,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-09 19:11:18,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 169554917, now seen corresponding path program 1 times [2022-11-09 19:11:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:18,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554772784] [2022-11-09 19:11:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:18,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:18,678 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:18,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554772784] [2022-11-09 19:11:18,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554772784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:18,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:18,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-09 19:11:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561363220] [2022-11-09 19:11:18,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-09 19:11:18,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-09 19:11:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-09 19:11:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,686 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:18,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2022-11-09 19:11:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:18,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-09 19:11:18,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:18,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1653055125, now seen corresponding path program 1 times [2022-11-09 19:11:18,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:18,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171496480] [2022-11-09 19:11:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:18,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:19,162 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:19,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171496480] [2022-11-09 19:11:19,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171496480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:19,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:19,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-09 19:11:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972660296] [2022-11-09 19:11:19,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-09 19:11:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-09 19:11:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-09 19:11:19,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,164 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:19,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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) [2022-11-09 19:11:19,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-09 19:11:19,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:19,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:19,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1736259527, now seen corresponding path program 1 times [2022-11-09 19:11:19,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:19,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839944553] [2022-11-09 19:11:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:19,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:19,591 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:19,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839944553] [2022-11-09 19:11:19,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839944553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:19,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:19,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-09 19:11:19,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79688149] [2022-11-09 19:11:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:19,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-09 19:11:19,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-09 19:11:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-09 19:11:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,593 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:19,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 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) [2022-11-09 19:11:19,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:19,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-09 19:11:19,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:19,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash 730797762, now seen corresponding path program 1 times [2022-11-09 19:11:19,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:19,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562703944] [2022-11-09 19:11:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:20,119 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:20,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562703944] [2022-11-09 19:11:20,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562703944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:20,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:20,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-09 19:11:20,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209101262] [2022-11-09 19:11:20,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:20,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-09 19:11:20,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:20,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-09 19:11:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-09 19:11:20,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:20,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.0) internal successors, (110), 6 states have internal predecessors, (110), 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) [2022-11-09 19:11:20,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-09 19:11:20,228 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:20,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1809143706, now seen corresponding path program 1 times [2022-11-09 19:11:20,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:20,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295283608] [2022-11-09 19:11:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:20,299 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295283608] [2022-11-09 19:11:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295283608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:20,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:20,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-09 19:11:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020252907] [2022-11-09 19:11:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:20,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-09 19:11:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-09 19:11:20,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-09 19:11:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,303 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:20,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:20,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-09 19:11:20,347 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:20,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 772080377, now seen corresponding path program 1 times [2022-11-09 19:11:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:20,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361366923] [2022-11-09 19:11:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:21,356 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:21,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361366923] [2022-11-09 19:11:21,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361366923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:21,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:21,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-09 19:11:21,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594073211] [2022-11-09 19:11:21,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:21,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-09 19:11:21,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:21,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-09 19:11:21,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-09 19:11:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:21,359 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:21,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.470588235294118) internal successors, (127), 18 states have internal predecessors, (127), 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) [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:21,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-09 19:11:22,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-09 19:11:22,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:22,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1188364931, now seen corresponding path program 1 times [2022-11-09 19:11:22,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:22,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115112790] [2022-11-09 19:11:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:22,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:23,068 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:23,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115112790] [2022-11-09 19:11:23,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115112790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:23,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:23,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-09 19:11:23,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232676697] [2022-11-09 19:11:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:23,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-09 19:11:23,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-09 19:11:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-09 19:11:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:23,069 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:23,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.65) internal successors, (133), 20 states have internal predecessors, (133), 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) [2022-11-09 19:11:23,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-09 19:11:23,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-09 19:11:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-09 19:11:24,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-09 19:11:24,496 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:24,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2085360382, now seen corresponding path program 1 times [2022-11-09 19:11:24,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:24,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168438392] [2022-11-09 19:11:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:24,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 19:11:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 19:11:25,668 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-11-09 19:11:25,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168438392] [2022-11-09 19:11:25,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168438392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 19:11:25,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 19:11:25,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-09 19:11:25,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728655765] [2022-11-09 19:11:25,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 19:11:25,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-09 19:11:25,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-11-09 19:11:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-09 19:11:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-11-09 19:11:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:25,669 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 19:11:25,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.541666666666667) internal successors, (109), 25 states have internal predecessors, (109), 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) [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-09 19:11:25,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 19:11:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-09 19:11:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 19:11:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-09 19:11:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-09 19:11:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-09 19:11:27,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-09 19:11:27,746 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-09 19:11:27,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 19:11:27,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1826255854, now seen corresponding path program 1 times [2022-11-09 19:11:27,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-11-09 19:11:27,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602593181] [2022-11-09 19:11:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 19:11:27,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 19:11:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-09 19:11:27,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-09 19:11:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-09 19:11:27,831 INFO L130 FreeRefinementEngine]: Strategy BADGER found a feasible trace [2022-11-09 19:11:27,831 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-09 19:11:27,832 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location reader_fnErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr6ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr7ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr2ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr3ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr4ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-09 19:11:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_fnErr5ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-09 19:11:27,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-09 19:11:27,841 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-09 19:11:27,842 INFO L307 ceAbstractionStarter]: Result for error location reader_fnThread1of1ForFork0 was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2022-11-09 19:11:27,845 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-09 19:11:27,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-09 19:11:27,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:11:27 BasicIcfg [2022-11-09 19:11:27,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-09 19:11:27,920 INFO L158 Benchmark]: Toolchain (without parser) took 11741.59ms. Allocated memory was 184.5MB in the beginning and 463.5MB in the end (delta: 278.9MB). Free memory was 127.7MB in the beginning and 314.0MB in the end (delta: -186.3MB). Peak memory consumption was 93.2MB. Max. memory is 8.0GB. [2022-11-09 19:11:27,920 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 145.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-09 19:11:27,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.42ms. Allocated memory was 184.5MB in the beginning and 225.4MB in the end (delta: 40.9MB). Free memory was 127.4MB in the beginning and 185.1MB in the end (delta: -57.7MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2022-11-09 19:11:27,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.95ms. Allocated memory is still 225.4MB. Free memory was 185.1MB in the beginning and 181.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-11-09 19:11:27,922 INFO L158 Benchmark]: Boogie Preprocessor took 55.20ms. Allocated memory is still 225.4MB. Free memory was 181.4MB in the beginning and 178.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-11-09 19:11:27,922 INFO L158 Benchmark]: RCFGBuilder took 502.50ms. Allocated memory is still 225.4MB. Free memory was 178.3MB in the beginning and 149.4MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-11-09 19:11:27,922 INFO L158 Benchmark]: TraceAbstraction took 10726.99ms. Allocated memory was 225.4MB in the beginning and 463.5MB in the end (delta: 238.0MB). Free memory was 148.9MB in the beginning and 314.0MB in the end (delta: -165.1MB). Peak memory consumption was 74.0MB. Max. memory is 8.0GB. [2022-11-09 19:11:27,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 145.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 383.42ms. Allocated memory was 184.5MB in the beginning and 225.4MB in the end (delta: 40.9MB). Free memory was 127.4MB in the beginning and 185.1MB in the end (delta: -57.7MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.95ms. Allocated memory is still 225.4MB. Free memory was 185.1MB in the beginning and 181.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.20ms. Allocated memory is still 225.4MB. Free memory was 181.4MB in the beginning and 178.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 502.50ms. Allocated memory is still 225.4MB. Free memory was 178.3MB in the beginning and 149.4MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 10726.99ms. Allocated memory was 225.4MB in the beginning and 463.5MB in the end (delta: 238.0MB). Free memory was 148.9MB in the beginning and 314.0MB in the end (delta: -165.1MB). Peak memory consumption was 74.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11698, positive: 11458, positive conditional: 970, positive unconditional: 10488, negative: 240, negative conditional: 127, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11586, positive: 11458, positive conditional: 970, positive unconditional: 10488, negative: 128, negative conditional: 15, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11586, positive: 11458, positive conditional: 970, positive unconditional: 10488, negative: 128, negative conditional: 15, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11727, positive: 11458, positive conditional: 49, positive unconditional: 11409, negative: 269, negative conditional: 92, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11727, positive: 11458, positive conditional: 49, positive unconditional: 11409, negative: 269, negative conditional: 30, negative unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11727, positive: 11458, positive conditional: 49, positive unconditional: 11409, negative: 269, negative conditional: 30, negative unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9539, positive: 9386, positive conditional: 45, positive unconditional: 9341, negative: 153, negative conditional: 26, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9539, positive: 9219, positive conditional: 0, positive unconditional: 9219, negative: 320, negative conditional: 0, negative unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 320, positive: 167, positive conditional: 45, positive unconditional: 122, negative: 153, negative conditional: 26, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 345, positive conditional: 148, positive unconditional: 197, negative: 330, negative conditional: 73, negative unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11727, positive: 2072, positive conditional: 4, positive unconditional: 2068, negative: 116, negative conditional: 4, negative unconditional: 112, unknown: 9539, unknown conditional: 71, unknown unconditional: 9468] , Statistics on independence cache: Total cache size (in pairs): 9539, Positive cache size: 9386, Positive conditional cache size: 45, Positive unconditional cache size: 9341, Negative cache size: 153, Negative conditional cache size: 26, Negative unconditional cache size: 127, Eliminated conditions: 62, Maximal queried relation: 5, Independence queries for same thread: 112 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.6s, Number of persistent set computation: 221, Number of trivial persistent sets: 177, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10601, positive: 10488, positive conditional: 0, positive unconditional: 10488, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11698, positive: 11458, positive conditional: 970, positive unconditional: 10488, negative: 240, negative conditional: 127, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11586, positive: 11458, positive conditional: 970, positive unconditional: 10488, negative: 128, negative conditional: 15, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11586, positive: 11458, positive conditional: 970, positive unconditional: 10488, negative: 128, negative conditional: 15, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11727, positive: 11458, positive conditional: 49, positive unconditional: 11409, negative: 269, negative conditional: 92, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11727, positive: 11458, positive conditional: 49, positive unconditional: 11409, negative: 269, negative conditional: 30, negative unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11727, positive: 11458, positive conditional: 49, positive unconditional: 11409, negative: 269, negative conditional: 30, negative unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9539, positive: 9386, positive conditional: 45, positive unconditional: 9341, negative: 153, negative conditional: 26, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9539, positive: 9219, positive conditional: 0, positive unconditional: 9219, negative: 320, negative conditional: 0, negative unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 320, positive: 167, positive conditional: 45, positive unconditional: 122, negative: 153, negative conditional: 26, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 345, positive conditional: 148, positive unconditional: 197, negative: 330, negative conditional: 73, negative unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11727, positive: 2072, positive conditional: 4, positive unconditional: 2068, negative: 116, negative conditional: 4, negative unconditional: 112, unknown: 9539, unknown conditional: 71, unknown unconditional: 9468] , Statistics on independence cache: Total cache size (in pairs): 9539, Positive cache size: 9386, Positive conditional cache size: 45, Positive unconditional cache size: 9341, Negative cache size: 153, Negative conditional cache size: 26, Negative unconditional cache size: 127, Eliminated conditions: 62, Maximal queried relation: 5, Independence queries for same thread: 112 - DataRaceFoundResult [Line: 820]: Data race detected Data race detected The following path leads to a data race: [L851] 0 pthread_t reader; VAL [reader={9:0}] [L852] 0 Ring r; VAL [r={8:0}, reader={9:0}] [L853] CALL 0 ring_init( &r ) [L823] EXPR 0 r->writer = 0 VAL [r={8:0}, r={8:0}, r->writer = 0=116] [L823] 0 r->reader = r->writer = 0 VAL [r={8:0}, r={8:0}, r->reader = r->writer = 0=117, r->writer = 0=116] [L853] RET 0 ring_init( &r ) [L854] FCALL, FORK 0 pthread_create( &reader, ((void *)0), &reader_fn, &r ) VAL [pthread_create( &reader, ((void *)0), &reader_fn, &r )=-1, r={8:0}, reader={9:0}] [L826] 1 Ring *r = arg; VAL [arg={8:0}, arg={8:0}, r={8:0}] [L827] 1 long val = 0, last = 0, i = 0; VAL [arg={8:0}, arg={8:0}, i=0, last=0, r={8:0}, val=0] [L828] COND TRUE 1 i < 8 VAL [arg={8:0}, arg={8:0}, i=0, last=0, r={8:0}, val=0] [L829] CALL 1 ring_empty( r ) [L820] EXPR 1 r->reader VAL [r={8:0}, r={8:0}, r->reader=0] [L820] 1 r->reader == r->writer VAL [r={8:0}, r={8:0}, r->reader=0] [L820] EXPR 1 r->writer VAL [r={8:0}, r={8:0}, r->reader=0, r->writer=0] [L820] 1 r->reader == r->writer VAL [r={8:0}, r={8:0}, r->reader=0, r->writer=0] [L855] CALL 0 writer_fn( &r ) [L842] 0 Ring *r = arg; VAL [arg={8:0}, arg={8:0}, r={8:0}] [L843] 0 long i = 0; VAL [arg={8:0}, arg={8:0}, i=0, r={8:0}] [L843] COND TRUE 0 i < 8 VAL [arg={8:0}, arg={8:0}, i=0, r={8:0}] [L845] CALL 0 ring_enqueue( r, i + 1 ) [L810] EXPR 0 r->writer VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, x=1] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, x=1] [L810] EXPR 0 r->reader VAL [\old(x)=1, r={8:0}, r={8:0}, r->reader=0, r->writer=0, x=1] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=1, r={8:0}, r={8:0}, r->reader=0, r->writer=0, x=1] [L810] COND FALSE 0 !((r->writer + 1) % 4 == r->reader) VAL [\old(x)=1, r={8:0}, r={8:0}, r->reader=0, r->writer=0, x=1] [L811] EXPR 0 r->writer VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, x=1] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, x=1] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=1, r={8:0}, r={8:0}, r->q[ r->writer ] = x=115, r->writer=0, x=1] [L812] EXPR 0 r->writer VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, x=1] [L812] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, x=1] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=1, r={8:0}, r={8:0}, r->writer=0, r->writer = (r->writer + 1) % 4=118, x=1] [L820] 1 r->reader == r->writer VAL [r={8:0}, r={8:0}, r->reader=0, r->writer=0] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: r->q[ r->writer ] = x [811] * C: r->q[ r->writer ] = x [811] * C: r->writer = 0 [823] * C: r->reader = r->writer = 0 [823] * C: r->q[ r->writer ] = x [811] * C: r->writer = 0 [823] * C: r->reader = r->writer = 0 [823] * C: r->reader = r->writer = 0 [823] * C: r->reader = r->writer = 0 [823] * C: r->writer = 0 [823] * C: r->q[ r->writer ] = x [811] * C: r->writer = 0 [823] * C: r->writer = (r->writer + 1) % 4 [812] and C: r->reader == r->writer [820] - UnprovableResult [Line: 820]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: reader_fnThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 370 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 5.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1110 NumberOfCodeBlocks, 1110 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 976 ConstructedInterpolants, 0 QuantifiedInterpolants, 5742 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-09 19:11:28,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-09 19:11:28,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...