/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:44:22,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:44:22,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:44:22,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:44:22,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:44:22,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:44:22,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:44:22,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:44:22,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:44:22,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:44:22,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:44:22,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:44:22,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:44:22,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:44:22,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:44:22,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:44:22,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:44:22,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:44:22,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:44:22,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:44:22,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:44:22,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:44:22,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:44:22,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:44:22,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:44:22,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:44:22,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:44:22,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:44:22,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:44:22,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:44:22,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:44:22,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:44:22,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:44:22,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:44:22,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:44:22,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:44:22,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:44:22,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:44:22,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:44:22,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:44:22,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:44:22,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 21:44:22,900 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:44:22,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:44:22,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:44:22,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:44:22,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:44:22,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:44:22,902 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:44:22,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:44:22,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:44:22,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:44:22,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:44:22,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:44:22,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:44:22,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:44:22,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:44:23,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:44:23,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:44:23,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:44:23,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:44:23,222 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:44:23,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-12 21:44:24,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:44:24,503 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:44:24,503 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-12 21:44:24,542 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa8db5ba/55f95a1fad0e4623a6d6ad1b5b40230f/FLAG260664546 [2022-12-12 21:44:24,553 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa8db5ba/55f95a1fad0e4623a6d6ad1b5b40230f [2022-12-12 21:44:24,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:44:24,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:44:24,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:44:24,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:44:24,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:44:24,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:44:24" (1/1) ... [2022-12-12 21:44:24,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab1300a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:24, skipping insertion in model container [2022-12-12 21:44:24,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:44:24" (1/1) ... [2022-12-12 21:44:24,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:44:24,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:44:25,054 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2022-12-12 21:44:25,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:25,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:25,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:25,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:25,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:25,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:25,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:44:25,099 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:44:25,130 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2022-12-12 21:44:25,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:25,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:25,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:25,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:25,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:25,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:25,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:44:25,246 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:44:25,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25 WrapperNode [2022-12-12 21:44:25,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:44:25,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:44:25,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:44:25,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:44:25,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,287 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2022-12-12 21:44:25,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:44:25,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:44:25,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:44:25,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:44:25,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,311 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:44:25,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:44:25,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:44:25,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:44:25,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (1/1) ... [2022-12-12 21:44:25,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:44:25,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:44:25,360 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) [2022-12-12 21:44:25,368 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 [2022-12-12 21:44:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:44:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:44:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:44:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:44:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 21:44:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:44:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 21:44:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:44:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:44:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:44:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 21:44:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 21:44:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:44:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:44:25,393 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:44:25,619 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:44:25,620 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:44:25,737 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:44:25,755 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:44:25,756 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:44:25,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:44:25 BoogieIcfgContainer [2022-12-12 21:44:25,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:44:25,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:44:25,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:44:25,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:44:25,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:44:24" (1/3) ... [2022-12-12 21:44:25,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220b406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:44:25, skipping insertion in model container [2022-12-12 21:44:25,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:25" (2/3) ... [2022-12-12 21:44:25,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220b406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:44:25, skipping insertion in model container [2022-12-12 21:44:25,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:44:25" (3/3) ... [2022-12-12 21:44:25,763 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2022-12-12 21:44:25,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:44:25,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-12 21:44:25,775 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:44:25,802 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-12 21:44:25,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 196 flow [2022-12-12 21:44:25,850 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-12-12 21:44:25,851 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 21:44:25,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 4/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 62. Up to 3 conditions per place. [2022-12-12 21:44:25,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 196 flow [2022-12-12 21:44:25,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 77 transitions, 160 flow [2022-12-12 21:44:25,860 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:44:25,875 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-12 21:44:25,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 160 flow [2022-12-12 21:44:25,889 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2022-12-12 21:44:25,889 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 21:44:25,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 1/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-12 21:44:25,891 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-12 21:44:25,891 INFO L226 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-12 21:44:28,339 INFO L241 LiptonReduction]: Total number of compositions: 68 [2022-12-12 21:44:28,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:44:28,354 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2310a46f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:44:28,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 21:44:28,355 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-12 21:44:28,356 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:44:28,356 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:28,356 INFO L214 CegarLoopForPetriNet]: trace histogram [1] [2022-12-12 21:44:28,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-12 21:44:28,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash 359, now seen corresponding path program 1 times [2022-12-12 21:44:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:28,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691000383] [2022-12-12 21:44:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:28,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:28,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:28,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691000383] [2022-12-12 21:44:28,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691000383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:28,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:28,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-12 21:44:28,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914213170] [2022-12-12 21:44:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:28,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 21:44:28,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:28,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 21:44:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 21:44:28,590 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 16 [2022-12-12 21:44:28,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 38 flow. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-12 21:44:28,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:28,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 16 [2022-12-12 21:44:28,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:44:28,630 INFO L130 PetriNetUnfolder]: 18/49 cut-off events. [2022-12-12 21:44:28,631 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 21:44:28,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 49 events. 18/49 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 180 event pairs, 18 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 91. Up to 49 conditions per place. [2022-12-12 21:44:28,632 INFO L137 encePairwiseOnDemand]: 13/16 looper letters, 10 selfloop transitions, 0 changer transitions 2/13 dead transitions. [2022-12-12 21:44:28,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 56 flow [2022-12-12 21:44:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 21:44:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 21:44:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 17 transitions. [2022-12-12 21:44:28,640 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.53125 [2022-12-12 21:44:28,643 INFO L295 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2022-12-12 21:44:28,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 18 places, 13 transitions, 56 flow [2022-12-12 21:44:28,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 11 transitions, 45 flow [2022-12-12 21:44:28,644 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 11 transitions, 45 flow [2022-12-12 21:44:28,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-12 21:44:28,644 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:28,644 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 21:44:28,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:44:28,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-12 21:44:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 11117313, now seen corresponding path program 1 times [2022-12-12 21:44:28,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:28,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592579276] [2022-12-12 21:44:28,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:28,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:28,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:28,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592579276] [2022-12-12 21:44:28,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592579276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:28,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:28,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:44:28,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364863840] [2022-12-12 21:44:28,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:28,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:44:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:44:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:44:28,784 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 16 [2022-12-12 21:44:28,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 11 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-12 21:44:28,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:28,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 16 [2022-12-12 21:44:28,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:44:28,819 INFO L130 PetriNetUnfolder]: 2/26 cut-off events. [2022-12-12 21:44:28,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:44:28,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 26 events. 2/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 102 event pairs, 0 based on Foata normal form. 7/23 useless extension candidates. Maximal degree in co-relation 70. Up to 26 conditions per place. [2022-12-12 21:44:28,820 INFO L137 encePairwiseOnDemand]: 10/16 looper letters, 3 selfloop transitions, 5 changer transitions 9/17 dead transitions. [2022-12-12 21:44:28,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 17 transitions, 101 flow [2022-12-12 21:44:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:44:28,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:44:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2022-12-12 21:44:28,821 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-12 21:44:28,822 INFO L295 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2022-12-12 21:44:28,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 18 places, 17 transitions, 101 flow [2022-12-12 21:44:28,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 15 places, 8 transitions, 51 flow [2022-12-12 21:44:28,822 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 51 flow [2022-12-12 21:44:28,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-12 21:44:28,822 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:28,823 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 21:44:28,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:44:28,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-12 21:44:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash 344640175, now seen corresponding path program 1 times [2022-12-12 21:44:28,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:28,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766330811] [2022-12-12 21:44:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:28,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 21:44:28,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 21:44:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 21:44:28,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 21:44:28,909 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 21:44:28,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 21:44:28,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-12 21:44:28,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-12 21:44:28,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-12 21:44:28,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-12 21:44:28,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:44:28,913 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-12 21:44:28,917 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:44:28,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:44:28,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:44:28 BasicIcfg [2022-12-12 21:44:28,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:44:28,938 INFO L158 Benchmark]: Toolchain (without parser) took 4379.73ms. Allocated memory was 183.5MB in the beginning and 222.3MB in the end (delta: 38.8MB). Free memory was 157.4MB in the beginning and 161.0MB in the end (delta: -3.6MB). Peak memory consumption was 36.0MB. Max. memory is 8.0GB. [2022-12-12 21:44:28,938 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory was 160.7MB in the beginning and 160.6MB in the end (delta: 80.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:44:28,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.00ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 137.9MB in the end (delta: 19.5MB). Peak memory consumption was 44.4MB. Max. memory is 8.0GB. [2022-12-12 21:44:28,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.99ms. Allocated memory is still 183.5MB. Free memory was 137.9MB in the beginning and 134.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 21:44:28,940 INFO L158 Benchmark]: Boogie Preprocessor took 38.15ms. Allocated memory is still 183.5MB. Free memory was 134.8MB in the beginning and 132.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:44:28,941 INFO L158 Benchmark]: RCFGBuilder took 430.91ms. Allocated memory is still 183.5MB. Free memory was 132.2MB in the beginning and 111.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-12 21:44:28,941 INFO L158 Benchmark]: TraceAbstraction took 3177.18ms. Allocated memory was 183.5MB in the beginning and 222.3MB in the end (delta: 38.8MB). Free memory was 110.1MB in the beginning and 161.0MB in the end (delta: -50.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:44:28,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory was 160.7MB in the beginning and 160.6MB in the end (delta: 80.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 688.00ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 137.9MB in the end (delta: 19.5MB). Peak memory consumption was 44.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.99ms. Allocated memory is still 183.5MB. Free memory was 137.9MB in the beginning and 134.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.15ms. Allocated memory is still 183.5MB. Free memory was 134.8MB in the beginning and 132.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 430.91ms. Allocated memory is still 183.5MB. Free memory was 132.2MB in the beginning and 111.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3177.18ms. Allocated memory was 183.5MB in the beginning and 222.3MB in the end (delta: 38.8MB). Free memory was 110.1MB in the beginning and 161.0MB in the end (delta: -50.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 80 PlacesBefore, 20 PlacesAfterwards, 77 TransitionsBefore, 16 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 50 TrivialYvCompositions, 16 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 254, independent: 242, independent conditional: 242, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 254, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 254, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 254, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 144, independent: 138, independent conditional: 0, independent unconditional: 138, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 144, independent: 134, independent conditional: 0, independent unconditional: 134, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 254, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 144, unknown conditional: 0, unknown unconditional: 144] , Statistics on independence cache: Total cache size (in pairs): 315, Positive cache size: 309, Positive conditional cache size: 0, Positive unconditional cache size: 309, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 61 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-12 21:44:28,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...