/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:06:03,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:06:03,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:06:03,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:06:03,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:06:03,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:06:03,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:06:03,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:06:03,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:06:03,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:06:03,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:06:03,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:06:03,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:06:03,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:06:03,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:06:03,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:06:03,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:06:03,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:06:03,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:06:03,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:06:03,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:06:03,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:06:03,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:06:03,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:06:03,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:06:03,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:06:03,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:06:03,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:06:03,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:06:03,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:06:03,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:06:03,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:06:03,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:06:03,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:06:03,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:06:03,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:06:03,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:06:03,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:06:03,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:06:03,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:06:03,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:06:03,913 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-NoLbe.epf [2022-12-12 12:06:03,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:06:03,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:06:03,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:06:03,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:06:03,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:06:03,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:06:03,948 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:06:03,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:06:03,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:06:03,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:06:03,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:06:03,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:06:03,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:06:03,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:06:03,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:06:03,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:06:03,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:06:03,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:06:03,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:06:03,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:06:03,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:06:03,951 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:06:03,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:06:03,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:06:03,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:06:03,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:06:04,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:06:04,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:06:04,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:06:04,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:06:04,331 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:06:04,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2022-12-12 12:06:05,932 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:06:06,315 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:06:06,319 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2022-12-12 12:06:06,360 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d260eb4c/20ec3def76bf4a58b3e1a5363be60254/FLAG8b6afd3ef [2022-12-12 12:06:06,372 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d260eb4c/20ec3def76bf4a58b3e1a5363be60254 [2022-12-12 12:06:06,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:06:06,375 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:06:06,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:06:06,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:06:06,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:06:06,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:06:06" (1/1) ... [2022-12-12 12:06:06,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b8e00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:06, skipping insertion in model container [2022-12-12 12:06:06,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:06:06" (1/1) ... [2022-12-12 12:06:06,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:06:06,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:06:06,664 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 12:06:07,645 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-2_3-container_of.i[75002,75015] [2022-12-12 12:06:07,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,686 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,686 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,689 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:06:07,710 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:06:07,725 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 12:06:07,756 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-2_3-container_of.i[75002,75015] [2022-12-12 12:06:07,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:06:07,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:06:07,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:06:07,860 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:06:07,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07 WrapperNode [2022-12-12 12:06:07,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:06:07,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:06:07,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:06:07,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:06:07,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,930 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-12 12:06:07,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:06:07,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:06:07,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:06:07,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:06:07,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:06:07,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:06:07,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:06:07,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:06:07,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (1/1) ... [2022-12-12 12:06:07,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:06:07,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:06:08,013 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 12:06:08,018 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 12:06:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 12:06:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:06:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 12:06:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 12:06:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 12:06:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:06:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 12:06:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:06:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:06:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-12 12:06:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-12 12:06:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:06:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:06:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:06:08,063 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 12:06:08,411 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:06:08,413 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:06:08,592 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:06:08,642 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:06:08,643 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 12:06:08,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:06:08 BoogieIcfgContainer [2022-12-12 12:06:08,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:06:08,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:06:08,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:06:08,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:06:08,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:06:06" (1/3) ... [2022-12-12 12:06:08,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb6375b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:06:08, skipping insertion in model container [2022-12-12 12:06:08,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:06:07" (2/3) ... [2022-12-12 12:06:08,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb6375b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:06:08, skipping insertion in model container [2022-12-12 12:06:08,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:06:08" (3/3) ... [2022-12-12 12:06:08,662 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-12-12 12:06:08,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:06:08,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-12 12:06:08,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:06:08,784 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 12:06:08,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 332 flow [2022-12-12 12:06:08,912 INFO L130 PetriNetUnfolder]: 8/196 cut-off events. [2022-12-12 12:06:08,913 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:06:08,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 196 events. 8/196 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 340 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-12-12 12:06:08,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 158 transitions, 332 flow [2022-12-12 12:06:08,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 146 transitions, 304 flow [2022-12-12 12:06:08,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:06:08,941 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;@693f451a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:06:08,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-12 12:06:08,961 INFO L130 PetriNetUnfolder]: 0/86 cut-off events. [2022-12-12 12:06:08,961 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:06:08,962 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:06:08,962 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:06:08,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 12:06:08,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:06:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash -264933738, now seen corresponding path program 1 times [2022-12-12 12:06:08,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:06:08,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972425012] [2022-12-12 12:06:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:06:08,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:06:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:06:09,776 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 12:06:09,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:06:09,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972425012] [2022-12-12 12:06:09,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972425012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:06:09,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:06:09,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 12:06:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704898829] [2022-12-12 12:06:09,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:06:09,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 12:06:09,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:06:09,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 12:06:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 12:06:09,825 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 158 [2022-12-12 12:06:09,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 146 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 12:06:09,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:06:09,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 158 [2022-12-12 12:06:09,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:06:10,205 INFO L130 PetriNetUnfolder]: 426/1305 cut-off events. [2022-12-12 12:06:10,205 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-12 12:06:10,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1305 events. 426/1305 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8440 event pairs, 152 based on Foata normal form. 12/1208 useless extension candidates. Maximal degree in co-relation 1876. Up to 587 conditions per place. [2022-12-12 12:06:10,226 INFO L137 encePairwiseOnDemand]: 146/158 looper letters, 44 selfloop transitions, 8 changer transitions 0/154 dead transitions. [2022-12-12 12:06:10,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 154 transitions, 427 flow [2022-12-12 12:06:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 12:06:10,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 12:06:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-12-12 12:06:10,246 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8270042194092827 [2022-12-12 12:06:10,250 INFO L295 CegarLoopForPetriNet]: 148 programPoint places, -1 predicate places. [2022-12-12 12:06:10,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 154 transitions, 427 flow [2022-12-12 12:06:10,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 154 transitions, 387 flow, removed 15 selfloop flow, removed 4 redundant places. [2022-12-12 12:06:10,262 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 154 transitions, 387 flow [2022-12-12 12:06:10,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 12:06:10,263 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:06:10,263 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:06:10,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:06:10,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 12:06:10,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:06:10,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1375000337, now seen corresponding path program 1 times [2022-12-12 12:06:10,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:06:10,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342632614] [2022-12-12 12:06:10,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:06:10,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:06:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:06:10,702 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 12:06:10,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:06:10,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342632614] [2022-12-12 12:06:10,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342632614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:06:10,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:06:10,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:06:10,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003647728] [2022-12-12 12:06:10,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:06:10,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:06:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:06:10,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:06:10,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:06:10,708 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 158 [2022-12-12 12:06:10,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 154 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 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 12:06:10,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:06:10,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 158 [2022-12-12 12:06:10,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:06:11,365 INFO L130 PetriNetUnfolder]: 1135/2629 cut-off events. [2022-12-12 12:06:11,366 INFO L131 PetriNetUnfolder]: For 454/706 co-relation queries the response was YES. [2022-12-12 12:06:11,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6132 conditions, 2629 events. 1135/2629 cut-off events. For 454/706 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 18087 event pairs, 148 based on Foata normal form. 2/2531 useless extension candidates. Maximal degree in co-relation 902. Up to 1351 conditions per place. [2022-12-12 12:06:11,386 INFO L137 encePairwiseOnDemand]: 137/158 looper letters, 109 selfloop transitions, 51 changer transitions 2/244 dead transitions. [2022-12-12 12:06:11,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 244 transitions, 1033 flow [2022-12-12 12:06:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:06:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:06:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1301 transitions. [2022-12-12 12:06:11,390 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.633398247322298 [2022-12-12 12:06:11,391 INFO L295 CegarLoopForPetriNet]: 148 programPoint places, 7 predicate places. [2022-12-12 12:06:11,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 244 transitions, 1033 flow [2022-12-12 12:06:11,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 244 transitions, 881 flow, removed 76 selfloop flow, removed 0 redundant places. [2022-12-12 12:06:11,398 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 244 transitions, 881 flow [2022-12-12 12:06:11,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 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 12:06:11,399 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:06:11,399 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:06:11,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:06:11,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 12:06:11,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:06:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash 376989047, now seen corresponding path program 1 times [2022-12-12 12:06:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:06:11,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927172694] [2022-12-12 12:06:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:06:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:06:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:06:11,596 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 12:06:11,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:06:11,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927172694] [2022-12-12 12:06:11,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927172694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:06:11,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:06:11,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 12:06:11,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610771480] [2022-12-12 12:06:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:06:11,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 12:06:11,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:06:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 12:06:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 12:06:11,600 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 158 [2022-12-12 12:06:11,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 244 transitions, 881 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 12:06:11,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:06:11,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 158 [2022-12-12 12:06:11,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:06:12,056 INFO L130 PetriNetUnfolder]: 1272/3030 cut-off events. [2022-12-12 12:06:12,056 INFO L131 PetriNetUnfolder]: For 1038/1876 co-relation queries the response was YES. [2022-12-12 12:06:12,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8111 conditions, 3030 events. 1272/3030 cut-off events. For 1038/1876 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 21735 event pairs, 144 based on Foata normal form. 27/2930 useless extension candidates. Maximal degree in co-relation 1163. Up to 1509 conditions per place. [2022-12-12 12:06:12,082 INFO L137 encePairwiseOnDemand]: 149/158 looper letters, 129 selfloop transitions, 24 changer transitions 2/275 dead transitions. [2022-12-12 12:06:12,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 275 transitions, 1376 flow [2022-12-12 12:06:12,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 12:06:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 12:06:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-12-12 12:06:12,085 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8185654008438819 [2022-12-12 12:06:12,086 INFO L295 CegarLoopForPetriNet]: 148 programPoint places, 9 predicate places. [2022-12-12 12:06:12,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 275 transitions, 1376 flow [2022-12-12 12:06:12,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 275 transitions, 1248 flow, removed 64 selfloop flow, removed 0 redundant places. [2022-12-12 12:06:12,094 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 275 transitions, 1248 flow [2022-12-12 12:06:12,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 12:06:12,095 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:06:12,095 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:06:12,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:06:12,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 12:06:12,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:06:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1500570047, now seen corresponding path program 1 times [2022-12-12 12:06:12,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:06:12,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517312149] [2022-12-12 12:06:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:06:12,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:06:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:06:12,381 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 12:06:12,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:06:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517312149] [2022-12-12 12:06:12,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517312149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:06:12,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:06:12,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:06:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101066062] [2022-12-12 12:06:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:06:12,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:06:12,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:06:12,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:06:12,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:06:12,384 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 158 [2022-12-12 12:06:12,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 275 transitions, 1248 flow. Second operand has 6 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 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 12:06:12,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:06:12,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 158 [2022-12-12 12:06:12,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:06:13,142 INFO L130 PetriNetUnfolder]: 1584/3607 cut-off events. [2022-12-12 12:06:13,142 INFO L131 PetriNetUnfolder]: For 2124/3928 co-relation queries the response was YES. [2022-12-12 12:06:13,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12063 conditions, 3607 events. 1584/3607 cut-off events. For 2124/3928 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 26313 event pairs, 163 based on Foata normal form. 72/3541 useless extension candidates. Maximal degree in co-relation 1674. Up to 1415 conditions per place. [2022-12-12 12:06:13,168 INFO L137 encePairwiseOnDemand]: 138/158 looper letters, 167 selfloop transitions, 60 changer transitions 105/414 dead transitions. [2022-12-12 12:06:13,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 414 transitions, 2720 flow [2022-12-12 12:06:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:06:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:06:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1306 transitions. [2022-12-12 12:06:13,172 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6358325219084713 [2022-12-12 12:06:13,173 INFO L295 CegarLoopForPetriNet]: 148 programPoint places, 21 predicate places. [2022-12-12 12:06:13,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 414 transitions, 2720 flow [2022-12-12 12:06:13,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 414 transitions, 2364 flow, removed 178 selfloop flow, removed 0 redundant places. [2022-12-12 12:06:13,186 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 414 transitions, 2364 flow [2022-12-12 12:06:13,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 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 12:06:13,186 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:06:13,187 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:06:13,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:06:13,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 12:06:13,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:06:13,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2031641652, now seen corresponding path program 1 times [2022-12-12 12:06:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:06:13,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043250188] [2022-12-12 12:06:13,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:06:13,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:06:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 12:06:13,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 12:06:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 12:06:13,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 12:06:13,280 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 12:06:13,281 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-12 12:06:13,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-12 12:06:13,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-12 12:06:13,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-12 12:06:13,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-12 12:06:13,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-12 12:06:13,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-12 12:06:13,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-12 12:06:13,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:06:13,284 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-12 12:06:13,288 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:06:13,289 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:06:13,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:06:13 BasicIcfg [2022-12-12 12:06:13,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:06:13,335 INFO L158 Benchmark]: Toolchain (without parser) took 6959.35ms. Allocated memory was 180.4MB in the beginning and 284.2MB in the end (delta: 103.8MB). Free memory was 153.7MB in the beginning and 162.0MB in the end (delta: -8.3MB). Peak memory consumption was 96.6MB. Max. memory is 8.0GB. [2022-12-12 12:06:13,335 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory was 156.7MB in the beginning and 156.6MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:06:13,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1484.82ms. Allocated memory is still 180.4MB. Free memory was 153.7MB in the beginning and 97.0MB in the end (delta: 56.7MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-12 12:06:13,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.26ms. Allocated memory is still 180.4MB. Free memory was 97.0MB in the beginning and 93.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 12:06:13,336 INFO L158 Benchmark]: Boogie Preprocessor took 39.75ms. Allocated memory is still 180.4MB. Free memory was 93.4MB in the beginning and 90.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 12:06:13,337 INFO L158 Benchmark]: RCFGBuilder took 683.41ms. Allocated memory is still 180.4MB. Free memory was 90.3MB in the beginning and 62.5MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-12 12:06:13,337 INFO L158 Benchmark]: TraceAbstraction took 4677.14ms. Allocated memory was 180.4MB in the beginning and 284.2MB in the end (delta: 103.8MB). Free memory was 61.5MB in the beginning and 162.0MB in the end (delta: -100.6MB). Peak memory consumption was 4.3MB. Max. memory is 8.0GB. [2022-12-12 12:06:13,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory was 156.7MB in the beginning and 156.6MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1484.82ms. Allocated memory is still 180.4MB. Free memory was 153.7MB in the beginning and 97.0MB in the end (delta: 56.7MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.26ms. Allocated memory is still 180.4MB. Free memory was 97.0MB in the beginning and 93.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.75ms. Allocated memory is still 180.4MB. Free memory was 93.4MB in the beginning and 90.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 683.41ms. Allocated memory is still 180.4MB. Free memory was 90.3MB in the beginning and 62.5MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 4677.14ms. Allocated memory was 180.4MB in the beginning and 284.2MB in the end (delta: 103.8MB). Free memory was 61.5MB in the beginning and 162.0MB in the end (delta: -100.6MB). Peak memory consumption was 4.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [my_drv_init()=0, ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={5:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=0, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=1, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: 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: 1713]: 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. - UnprovableResult [Line: 1714]: 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 4 procedures, 168 locations, 8 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: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 267 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 408 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 253 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 475 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 155 mSDtfsCounter, 475 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2364occurred in iteration=4, InterpolantAutomatonStates: 32, 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, 4 MinimizatonAttempts, 676 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 12:06:13,362 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...