/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:22:13,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:22:13,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:22:13,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:22:13,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:22:13,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:22:13,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:22:13,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:22:13,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:22:13,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:22:13,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:22:13,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:22:13,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:22:13,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:22:13,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:22:13,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:22:13,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:22:13,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:22:13,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:22:13,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:22:13,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:22:13,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:22:13,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:22:13,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:22:13,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:22:13,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:22:13,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:22:13,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:22:13,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:22:13,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:22:13,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:22:13,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:22:13,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:22:13,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:22:13,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:22:13,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:22:13,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:22:13,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:22:13,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:22:13,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:22:13,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:22:13,689 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-VariableLbe.epf [2023-01-27 18:22:13,712 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:22:13,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:22:13,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:22:13,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:22:13,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:22:13,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:22:13,713 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:22:13,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:22:13,713 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:22:13,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:22:13,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:22:13,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:22:13,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:22:13,715 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:22:13,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:22:13,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:22:13,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:22:13,886 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:22:13,886 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:22:13,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-01-27 18:22:14,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:22:15,033 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:22:15,033 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-01-27 18:22:15,050 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d881692/e8e637879f3547ce8f6470cfdb3ed123/FLAGfd1c0d4b2 [2023-01-27 18:22:15,059 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d881692/e8e637879f3547ce8f6470cfdb3ed123 [2023-01-27 18:22:15,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:22:15,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:22:15,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:22:15,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:22:15,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:22:15,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a4644e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15, skipping insertion in model container [2023-01-27 18:22:15,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:22:15,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:22:15,241 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 18:22:15,547 WARN L247 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_4-container_of.i[75002,75015] [2023-01-27 18:22:15,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:22:15,579 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:22:15,586 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 18:22:15,606 WARN L247 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_4-container_of.i[75002,75015] [2023-01-27 18:22:15,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:22:15,695 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:15,695 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:15,695 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:15,700 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:22:15,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15 WrapperNode [2023-01-27 18:22:15,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:22:15,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:22:15,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:22:15,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:22:15,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,754 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-01-27 18:22:15,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:22:15,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:22:15,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:22:15,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:22:15,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,785 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:22:15,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:22:15,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:22:15,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:22:15,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (1/1) ... [2023-01-27 18:22:15,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:22:15,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:22:15,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 18:22:15,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 18:22:15,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:22:15,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:22:15,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:22:15,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:22:15,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-01-27 18:22:15,835 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:22:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:22:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:22:15,837 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:22:16,077 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:22:16,078 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:22:16,282 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:22:16,307 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:22:16,307 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 18:22:16,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:22:16 BoogieIcfgContainer [2023-01-27 18:22:16,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:22:16,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:22:16,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:22:16,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:22:16,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:22:15" (1/3) ... [2023-01-27 18:22:16,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614f23b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:22:16, skipping insertion in model container [2023-01-27 18:22:16,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:15" (2/3) ... [2023-01-27 18:22:16,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614f23b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:22:16, skipping insertion in model container [2023-01-27 18:22:16,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:22:16" (3/3) ... [2023-01-27 18:22:16,314 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-01-27 18:22:16,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:22:16,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-01-27 18:22:16,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:22:16,381 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:22:16,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 159 transitions, 334 flow [2023-01-27 18:22:16,456 INFO L130 PetriNetUnfolder]: 8/203 cut-off events. [2023-01-27 18:22:16,457 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:22:16,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 203 events. 8/203 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 392 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 110. Up to 4 conditions per place. [2023-01-27 18:22:16,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 159 transitions, 334 flow [2023-01-27 18:22:16,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:16,469 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:22:16,482 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:16,488 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:16,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:16,526 INFO L130 PetriNetUnfolder]: 5/184 cut-off events. [2023-01-27 18:22:16,527 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:22:16,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 184 events. 5/184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 343 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 100. Up to 4 conditions per place. [2023-01-27 18:22:16,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 2704 [2023-01-27 18:22:23,285 INFO L134 LiptonReduction]: Checked pairs total: 7350 [2023-01-27 18:22:23,285 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-01-27 18:22:23,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:22:23,298 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;@71330708, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:22:23,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-27 18:22:23,301 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-01-27 18:22:23,301 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:22:23,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:23,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-27 18:22:23,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:23,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:23,305 INFO L85 PathProgramCache]: Analyzing trace with hash 18006410, now seen corresponding path program 1 times [2023-01-27 18:22:23,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:23,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760136637] [2023-01-27 18:22:23,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:23,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:23,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760136637] [2023-01-27 18:22:23,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760136637] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:23,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:23,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:23,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909154048] [2023-01-27 18:22:23,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:23,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:23,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:23,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:23,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:23,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2023-01-27 18:22:23,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:23,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:23,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2023-01-27 18:22:23,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:23,794 INFO L130 PetriNetUnfolder]: 432/844 cut-off events. [2023-01-27 18:22:23,794 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-01-27 18:22:23,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 844 events. 432/844 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4438 event pairs, 432 based on Foata normal form. 0/732 useless extension candidates. Maximal degree in co-relation 1524. Up to 736 conditions per place. [2023-01-27 18:22:23,803 INFO L137 encePairwiseOnDemand]: 298/301 looper letters, 32 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2023-01-27 18:22:23,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 156 flow [2023-01-27 18:22:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:23,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-01-27 18:22:23,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49169435215946844 [2023-01-27 18:22:23,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-01-27 18:22:23,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-01-27 18:22:23,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:23,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-01-27 18:22:23,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:23,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:23,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:23,836 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 84 flow. Second operand 3 states and 444 transitions. [2023-01-27 18:22:23,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 156 flow [2023-01-27 18:22:23,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 18:22:23,840 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 79 flow [2023-01-27 18:22:23,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2023-01-27 18:22:23,847 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2023-01-27 18:22:23,848 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 79 flow [2023-01-27 18:22:23,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:23,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:23,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-27 18:22:23,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:22:23,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:23,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:23,851 INFO L85 PathProgramCache]: Analyzing trace with hash 17980668, now seen corresponding path program 1 times [2023-01-27 18:22:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:23,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073484693] [2023-01-27 18:22:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:24,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:24,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073484693] [2023-01-27 18:22:24,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073484693] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:24,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:24,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:24,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540899940] [2023-01-27 18:22:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:24,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:24,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:24,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:24,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:24,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 301 [2023-01-27 18:22:24,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:24,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 301 [2023-01-27 18:22:24,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:24,307 INFO L130 PetriNetUnfolder]: 998/1668 cut-off events. [2023-01-27 18:22:24,307 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-27 18:22:24,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3384 conditions, 1668 events. 998/1668 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8151 event pairs, 666 based on Foata normal form. 0/1562 useless extension candidates. Maximal degree in co-relation 3369. Up to 1342 conditions per place. [2023-01-27 18:22:24,315 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 41 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-01-27 18:22:24,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 201 flow [2023-01-27 18:22:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:24,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-01-27 18:22:24,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4230343300110742 [2023-01-27 18:22:24,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-01-27 18:22:24,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-01-27 18:22:24,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:24,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-01-27 18:22:24,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,320 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 79 flow. Second operand 3 states and 382 transitions. [2023-01-27 18:22:24,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 201 flow [2023-01-27 18:22:24,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:22:24,322 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 128 flow [2023-01-27 18:22:24,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2023-01-27 18:22:24,323 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2023-01-27 18:22:24,323 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 128 flow [2023-01-27 18:22:24,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:24,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 18:22:24,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:22:24,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:24,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash 557401203, now seen corresponding path program 1 times [2023-01-27 18:22:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576542526] [2023-01-27 18:22:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:24,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:24,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576542526] [2023-01-27 18:22:24,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576542526] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:24,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:24,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765201304] [2023-01-27 18:22:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:24,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:24,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:24,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 301 [2023-01-27 18:22:24,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:24,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 301 [2023-01-27 18:22:24,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:24,678 INFO L130 PetriNetUnfolder]: 1114/1874 cut-off events. [2023-01-27 18:22:24,678 INFO L131 PetriNetUnfolder]: For 618/618 co-relation queries the response was YES. [2023-01-27 18:22:24,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4693 conditions, 1874 events. 1114/1874 cut-off events. For 618/618 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9585 event pairs, 782 based on Foata normal form. 38/1839 useless extension candidates. Maximal degree in co-relation 3043. Up to 1567 conditions per place. [2023-01-27 18:22:24,686 INFO L137 encePairwiseOnDemand]: 294/301 looper letters, 45 selfloop transitions, 9 changer transitions 2/56 dead transitions. [2023-01-27 18:22:24,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 302 flow [2023-01-27 18:22:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2023-01-27 18:22:24,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219269102990033 [2023-01-27 18:22:24,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2023-01-27 18:22:24,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2023-01-27 18:22:24,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:24,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2023-01-27 18:22:24,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,691 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 128 flow. Second operand 3 states and 381 transitions. [2023-01-27 18:22:24,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 302 flow [2023-01-27 18:22:24,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:22:24,696 INFO L231 Difference]: Finished difference. Result has 43 places, 46 transitions, 183 flow [2023-01-27 18:22:24,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=43, PETRI_TRANSITIONS=46} [2023-01-27 18:22:24,697 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-01-27 18:22:24,699 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 46 transitions, 183 flow [2023-01-27 18:22:24,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:24,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:24,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:22:24,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:22:24,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:24,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash 682194293, now seen corresponding path program 1 times [2023-01-27 18:22:24,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:24,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620672281] [2023-01-27 18:22:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:24,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:24,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:24,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620672281] [2023-01-27 18:22:24,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620672281] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:24,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:24,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047529239] [2023-01-27 18:22:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:24,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:24,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:24,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:24,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 301 [2023-01-27 18:22:24,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 46 transitions, 183 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) [2023-01-27 18:22:24,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:24,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 301 [2023-01-27 18:22:24,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:25,049 INFO L130 PetriNetUnfolder]: 1397/2345 cut-off events. [2023-01-27 18:22:25,049 INFO L131 PetriNetUnfolder]: For 1266/1266 co-relation queries the response was YES. [2023-01-27 18:22:25,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6351 conditions, 2345 events. 1397/2345 cut-off events. For 1266/1266 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12807 event pairs, 678 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 3881. Up to 1873 conditions per place. [2023-01-27 18:22:25,059 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 56 selfloop transitions, 7 changer transitions 0/63 dead transitions. [2023-01-27 18:22:25,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 360 flow [2023-01-27 18:22:25,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-01-27 18:22:25,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43853820598006643 [2023-01-27 18:22:25,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-01-27 18:22:25,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-01-27 18:22:25,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:25,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-01-27 18:22:25,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:25,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:25,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:25,069 INFO L175 Difference]: Start difference. First operand has 43 places, 46 transitions, 183 flow. Second operand 3 states and 396 transitions. [2023-01-27 18:22:25,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 360 flow [2023-01-27 18:22:25,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 63 transitions, 349 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-27 18:22:25,075 INFO L231 Difference]: Finished difference. Result has 44 places, 52 transitions, 242 flow [2023-01-27 18:22:25,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=44, PETRI_TRANSITIONS=52} [2023-01-27 18:22:25,076 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2023-01-27 18:22:25,076 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 52 transitions, 242 flow [2023-01-27 18:22:25,077 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) [2023-01-27 18:22:25,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:25,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:22:25,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:22:25,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:25,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:25,077 INFO L85 PathProgramCache]: Analyzing trace with hash -326813030, now seen corresponding path program 1 times [2023-01-27 18:22:25,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:25,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002158441] [2023-01-27 18:22:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:25,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:25,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:25,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002158441] [2023-01-27 18:22:25,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002158441] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:25,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:25,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:25,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852046992] [2023-01-27 18:22:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:25,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:25,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:25,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:25,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 301 [2023-01-27 18:22:25,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 52 transitions, 242 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) [2023-01-27 18:22:25,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:25,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 301 [2023-01-27 18:22:25,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:25,411 INFO L130 PetriNetUnfolder]: 1628/2738 cut-off events. [2023-01-27 18:22:25,411 INFO L131 PetriNetUnfolder]: For 3156/3156 co-relation queries the response was YES. [2023-01-27 18:22:25,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8237 conditions, 2738 events. 1628/2738 cut-off events. For 3156/3156 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 15305 event pairs, 794 based on Foata normal form. 0/2609 useless extension candidates. Maximal degree in co-relation 3419. Up to 2113 conditions per place. [2023-01-27 18:22:25,424 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 60 selfloop transitions, 12 changer transitions 0/72 dead transitions. [2023-01-27 18:22:25,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 72 transitions, 491 flow [2023-01-27 18:22:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-01-27 18:22:25,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4374307862679956 [2023-01-27 18:22:25,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-01-27 18:22:25,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-01-27 18:22:25,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:25,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-01-27 18:22:25,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:25,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:25,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:22:25,429 INFO L175 Difference]: Start difference. First operand has 44 places, 52 transitions, 242 flow. Second operand 3 states and 395 transitions. [2023-01-27 18:22:25,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 72 transitions, 491 flow [2023-01-27 18:22:25,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 72 transitions, 435 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-01-27 18:22:25,434 INFO L231 Difference]: Finished difference. Result has 46 places, 62 transitions, 336 flow [2023-01-27 18:22:25,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=46, PETRI_TRANSITIONS=62} [2023-01-27 18:22:25,436 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2023-01-27 18:22:25,436 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 62 transitions, 336 flow [2023-01-27 18:22:25,436 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) [2023-01-27 18:22:25,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:25,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:22:25,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:22:25,436 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:25,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1672564077, now seen corresponding path program 1 times [2023-01-27 18:22:25,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:25,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090357892] [2023-01-27 18:22:25,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:25,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 18:22:25,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 18:22:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 18:22:25,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 18:22:25,542 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 18:22:25,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-01-27 18:22:25,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-01-27 18:22:25,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-01-27 18:22:25,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-01-27 18:22:25,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-01-27 18:22:25,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-01-27 18:22:25,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-01-27 18:22:25,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-01-27 18:22:25,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 18:22:25,550 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-01-27 18:22:25,554 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:22:25,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:22:25,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:22:25 BasicIcfg [2023-01-27 18:22:25,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:22:25,578 INFO L158 Benchmark]: Toolchain (without parser) took 10516.94ms. Allocated memory was 526.4MB in the beginning and 633.3MB in the end (delta: 107.0MB). Free memory was 484.3MB in the beginning and 447.7MB in the end (delta: 36.6MB). Peak memory consumption was 145.0MB. Max. memory is 16.0GB. [2023-01-27 18:22:25,578 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 310.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:22:25,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.75ms. Allocated memory is still 526.4MB. Free memory was 484.3MB in the beginning and 429.4MB in the end (delta: 54.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-01-27 18:22:25,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.33ms. Allocated memory is still 526.4MB. Free memory was 429.4MB in the beginning and 426.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-27 18:22:25,579 INFO L158 Benchmark]: Boogie Preprocessor took 34.98ms. Allocated memory is still 526.4MB. Free memory was 426.2MB in the beginning and 423.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:22:25,579 INFO L158 Benchmark]: RCFGBuilder took 518.61ms. Allocated memory is still 526.4MB. Free memory was 423.2MB in the beginning and 481.3MB in the end (delta: -58.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.0GB. [2023-01-27 18:22:25,579 INFO L158 Benchmark]: TraceAbstraction took 9267.52ms. Allocated memory was 526.4MB in the beginning and 633.3MB in the end (delta: 107.0MB). Free memory was 480.3MB in the beginning and 447.7MB in the end (delta: 32.6MB). Peak memory consumption was 139.5MB. Max. memory is 16.0GB. [2023-01-27 18:22:25,580 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 362.8MB. Free memory is still 310.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 638.75ms. Allocated memory is still 526.4MB. Free memory was 484.3MB in the beginning and 429.4MB in the end (delta: 54.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.33ms. Allocated memory is still 526.4MB. Free memory was 429.4MB in the beginning and 426.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.98ms. Allocated memory is still 526.4MB. Free memory was 426.2MB in the beginning and 423.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 518.61ms. Allocated memory is still 526.4MB. Free memory was 423.2MB in the beginning and 481.3MB in the end (delta: -58.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.0GB. * TraceAbstraction took 9267.52ms. Allocated memory was 526.4MB in the beginning and 633.3MB in the end (delta: 107.0MB). Free memory was 480.3MB in the beginning and 447.7MB in the end (delta: 32.6MB). Peak memory consumption was 139.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 149 PlacesBefore, 40 PlacesAfterwards, 147 TransitionsBefore, 36 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 7 FixpointIterations, 70 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 142 TotalNumberOfCompositions, 7350 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2806, independent: 2511, independent conditional: 0, independent unconditional: 2511, dependent: 295, dependent conditional: 0, dependent unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1400, independent: 1345, independent conditional: 0, independent unconditional: 1345, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2806, independent: 1166, independent conditional: 0, independent unconditional: 1166, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 1400, unknown conditional: 0, unknown unconditional: 1400] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [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; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [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, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1723] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, status={7:0}, 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}] [L1726] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] 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, 169 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: 9.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 20 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-27 18:22:25,600 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...