/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:43:22,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:43:22,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:43:22,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:43:22,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:43:22,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:43:22,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:43:22,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:43:22,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:43:22,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:43:22,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:43:22,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:43:22,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:43:22,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:43:22,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:43:22,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:43:22,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:43:22,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:43:22,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:43:22,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:43:22,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:43:22,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:43:22,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:43:22,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:43:22,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:43:22,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:43:22,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:43:22,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:43:22,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:43:22,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:43:22,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:43:22,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:43:22,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:43:22,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:43:22,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:43:22,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:43:22,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:43:22,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:43:22,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:43:22,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:43:22,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:43:22,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 21:43:22,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:43:22,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:43:22,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:43:22,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:43:22,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:43:22,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:43:22,873 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:43:22,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:43:22,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:43:22,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:43:22,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:43:22,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:43:22,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:43:22,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:43:22,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:43:22,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:43:22,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:43:22,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:43:22,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:43:22,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:43:22,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:43:22,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:43:22,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:43:22,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:43:23,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:43:23,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:43:23,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:43:23,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:43:23,191 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:43:23,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-12 21:43:24,143 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:43:24,392 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:43:24,392 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-12 21:43:24,401 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ce0cc5f/e36f73c971b94fb39253bd0cb74e98db/FLAG1258f4876 [2022-12-12 21:43:24,417 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ce0cc5f/e36f73c971b94fb39253bd0cb74e98db [2022-12-12 21:43:24,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:43:24,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:43:24,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:43:24,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:43:24,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:43:24,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fce06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24, skipping insertion in model container [2022-12-12 21:43:24,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:43:24,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:43:24,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i[945,958] [2022-12-12 21:43:24,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:43:24,740 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:43:24,750 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i[945,958] [2022-12-12 21:43:24,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:43:24,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:43:24,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:43:24,816 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:43:24,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24 WrapperNode [2022-12-12 21:43:24,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:43:24,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:43:24,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:43:24,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:43:24,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,866 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-12 21:43:24,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:43:24,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:43:24,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:43:24,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:43:24,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:43:24,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:43:24,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:43:24,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:43:24,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (1/1) ... [2022-12-12 21:43:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:43:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:43:24,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 21:43:24,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 21:43:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:43:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:43:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:43:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:43:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:43:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:43:24,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:43:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:43:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:43:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:43:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:43:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:43:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:43:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:43:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:43:24,963 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:43:25,108 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:43:25,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:43:25,300 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:43:25,305 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:43:25,306 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:43:25,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:43:25 BoogieIcfgContainer [2022-12-12 21:43:25,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:43:25,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:43:25,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:43:25,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:43:25,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:43:24" (1/3) ... [2022-12-12 21:43:25,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d45e0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:43:25, skipping insertion in model container [2022-12-12 21:43:25,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:43:24" (2/3) ... [2022-12-12 21:43:25,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d45e0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:43:25, skipping insertion in model container [2022-12-12 21:43:25,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:43:25" (3/3) ... [2022-12-12 21:43:25,315 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2022-12-12 21:43:25,328 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:43:25,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 21:43:25,329 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:43:25,378 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:43:25,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-12 21:43:25,457 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-12 21:43:25,457 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:43:25,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-12 21:43:25,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-12 21:43:25,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-12 21:43:25,470 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:43:25,495 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-12 21:43:25,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-12 21:43:25,516 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-12 21:43:25,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:43:25,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-12 21:43:25,518 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-12 21:43:25,518 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-12 21:43:27,427 INFO L241 LiptonReduction]: Total number of compositions: 54 [2022-12-12 21:43:27,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:43:27,448 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;@56042eeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:43:27,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 21:43:27,452 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-12 21:43:27,452 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:43:27,452 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:27,452 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:27,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:27,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash 365188265, now seen corresponding path program 1 times [2022-12-12 21:43:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:27,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757141519] [2022-12-12 21:43:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:27,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:27,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757141519] [2022-12-12 21:43:27,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757141519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:27,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:27,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:43:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463028819] [2022-12-12 21:43:27,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:27,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:27,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:27,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:27,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:27,827 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 21:43:27,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:27,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:27,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 21:43:27,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:27,988 INFO L130 PetriNetUnfolder]: 654/1070 cut-off events. [2022-12-12 21:43:27,989 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-12 21:43:27,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1070 events. 654/1070 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5465 event pairs, 211 based on Foata normal form. 8/863 useless extension candidates. Maximal degree in co-relation 2113. Up to 926 conditions per place. [2022-12-12 21:43:27,996 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 27 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2022-12-12 21:43:27,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 149 flow [2022-12-12 21:43:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-12 21:43:28,005 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 21:43:28,007 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-12 21:43:28,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 37 transitions, 149 flow [2022-12-12 21:43:28,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 37 transitions, 149 flow [2022-12-12 21:43:28,013 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 149 flow [2022-12-12 21:43:28,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,013 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:28,013 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:28,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:43:28,014 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:28,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:28,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1564066127, now seen corresponding path program 1 times [2022-12-12 21:43:28,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:28,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714382758] [2022-12-12 21:43:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:28,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:28,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:28,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714382758] [2022-12-12 21:43:28,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714382758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:28,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:28,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:43:28,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312643533] [2022-12-12 21:43:28,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:28,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:43:28,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:28,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:43:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:43:28,141 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 21:43:28,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:28,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 21:43:28,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:28,255 INFO L130 PetriNetUnfolder]: 932/1564 cut-off events. [2022-12-12 21:43:28,256 INFO L131 PetriNetUnfolder]: For 287/297 co-relation queries the response was YES. [2022-12-12 21:43:28,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4257 conditions, 1564 events. 932/1564 cut-off events. For 287/297 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 8325 event pairs, 112 based on Foata normal form. 131/1356 useless extension candidates. Maximal degree in co-relation 4243. Up to 1294 conditions per place. [2022-12-12 21:43:28,262 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 38 selfloop transitions, 4 changer transitions 8/59 dead transitions. [2022-12-12 21:43:28,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 59 transitions, 343 flow [2022-12-12 21:43:28,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:43:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:43:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2022-12-12 21:43:28,263 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-12-12 21:43:28,264 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2022-12-12 21:43:28,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 59 transitions, 343 flow [2022-12-12 21:43:28,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 51 transitions, 295 flow [2022-12-12 21:43:28,269 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 51 transitions, 295 flow [2022-12-12 21:43:28,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,269 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:28,269 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:28,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:43:28,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1394365276, now seen corresponding path program 1 times [2022-12-12 21:43:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:28,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735805941] [2022-12-12 21:43:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:28,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:28,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:28,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735805941] [2022-12-12 21:43:28,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735805941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:28,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:28,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:43:28,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218142022] [2022-12-12 21:43:28,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:28,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:43:28,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:28,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:43:28,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:43:28,371 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:43:28,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 51 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:28,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:43:28,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:28,539 INFO L130 PetriNetUnfolder]: 1127/1780 cut-off events. [2022-12-12 21:43:28,539 INFO L131 PetriNetUnfolder]: For 1283/1293 co-relation queries the response was YES. [2022-12-12 21:43:28,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6195 conditions, 1780 events. 1127/1780 cut-off events. For 1283/1293 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8706 event pairs, 105 based on Foata normal form. 125/1549 useless extension candidates. Maximal degree in co-relation 6178. Up to 1345 conditions per place. [2022-12-12 21:43:28,549 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 65 selfloop transitions, 22 changer transitions 5/99 dead transitions. [2022-12-12 21:43:28,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 99 transitions, 755 flow [2022-12-12 21:43:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:43:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:43:28,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2022-12-12 21:43:28,551 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2022-12-12 21:43:28,552 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2022-12-12 21:43:28,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 99 transitions, 755 flow [2022-12-12 21:43:28,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 94 transitions, 715 flow [2022-12-12 21:43:28,560 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 94 transitions, 715 flow [2022-12-12 21:43:28,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,560 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:28,560 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:28,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:43:28,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:28,562 INFO L85 PathProgramCache]: Analyzing trace with hash 152562999, now seen corresponding path program 1 times [2022-12-12 21:43:28,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:28,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327044814] [2022-12-12 21:43:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:28,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:28,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327044814] [2022-12-12 21:43:28,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327044814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:28,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:28,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:43:28,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999398144] [2022-12-12 21:43:28,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:28,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:43:28,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:43:28,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:43:28,639 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:43:28,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 94 transitions, 715 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:28,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:43:28,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:28,793 INFO L130 PetriNetUnfolder]: 791/1346 cut-off events. [2022-12-12 21:43:28,793 INFO L131 PetriNetUnfolder]: For 1644/1714 co-relation queries the response was YES. [2022-12-12 21:43:28,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5943 conditions, 1346 events. 791/1346 cut-off events. For 1644/1714 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6950 event pairs, 44 based on Foata normal form. 142/1233 useless extension candidates. Maximal degree in co-relation 5923. Up to 1019 conditions per place. [2022-12-12 21:43:28,801 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 58 selfloop transitions, 33 changer transitions 33/131 dead transitions. [2022-12-12 21:43:28,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 131 transitions, 1226 flow [2022-12-12 21:43:28,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:43:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:43:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2022-12-12 21:43:28,804 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2022-12-12 21:43:28,805 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2022-12-12 21:43:28,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 131 transitions, 1226 flow [2022-12-12 21:43:28,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 98 transitions, 920 flow [2022-12-12 21:43:28,812 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 98 transitions, 920 flow [2022-12-12 21:43:28,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,812 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:28,812 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:43:28,813 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash 914232531, now seen corresponding path program 1 times [2022-12-12 21:43:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:28,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047655969] [2022-12-12 21:43:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:28,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:28,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:28,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047655969] [2022-12-12 21:43:28,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047655969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:28,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:28,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:43:28,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584502873] [2022-12-12 21:43:28,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:28,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 21:43:28,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:28,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 21:43:28,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 21:43:28,907 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:43:28,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 98 transitions, 920 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:28,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:28,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:43:28,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:29,042 INFO L130 PetriNetUnfolder]: 450/838 cut-off events. [2022-12-12 21:43:29,042 INFO L131 PetriNetUnfolder]: For 1568/1649 co-relation queries the response was YES. [2022-12-12 21:43:29,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4513 conditions, 838 events. 450/838 cut-off events. For 1568/1649 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4213 event pairs, 20 based on Foata normal form. 121/803 useless extension candidates. Maximal degree in co-relation 4490. Up to 615 conditions per place. [2022-12-12 21:43:29,047 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 38 selfloop transitions, 41 changer transitions 13/99 dead transitions. [2022-12-12 21:43:29,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 99 transitions, 1114 flow [2022-12-12 21:43:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:43:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:43:29,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2022-12-12 21:43:29,048 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5432098765432098 [2022-12-12 21:43:29,050 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2022-12-12 21:43:29,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 99 transitions, 1114 flow [2022-12-12 21:43:29,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 86 transitions, 970 flow [2022-12-12 21:43:29,059 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 86 transitions, 970 flow [2022-12-12 21:43:29,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,059 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:29,059 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:29,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:43:29,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:29,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:29,062 INFO L85 PathProgramCache]: Analyzing trace with hash -430777085, now seen corresponding path program 1 times [2022-12-12 21:43:29,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:29,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858697200] [2022-12-12 21:43:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:29,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:29,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:29,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858697200] [2022-12-12 21:43:29,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858697200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:29,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:29,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:43:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949556531] [2022-12-12 21:43:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:29,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:43:29,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:29,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:43:29,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:43:29,185 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 21:43:29,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 86 transitions, 970 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:29,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 21:43:29,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:29,285 INFO L130 PetriNetUnfolder]: 448/844 cut-off events. [2022-12-12 21:43:29,285 INFO L131 PetriNetUnfolder]: For 2118/2214 co-relation queries the response was YES. [2022-12-12 21:43:29,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5228 conditions, 844 events. 448/844 cut-off events. For 2118/2214 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4328 event pairs, 2 based on Foata normal form. 59/719 useless extension candidates. Maximal degree in co-relation 5202. Up to 637 conditions per place. [2022-12-12 21:43:29,292 INFO L137 encePairwiseOnDemand]: 21/27 looper letters, 61 selfloop transitions, 13 changer transitions 41/128 dead transitions. [2022-12-12 21:43:29,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 128 transitions, 1700 flow [2022-12-12 21:43:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:43:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:43:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2022-12-12 21:43:29,294 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2022-12-12 21:43:29,295 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2022-12-12 21:43:29,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 128 transitions, 1700 flow [2022-12-12 21:43:29,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 87 transitions, 1113 flow [2022-12-12 21:43:29,299 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 87 transitions, 1113 flow [2022-12-12 21:43:29,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,299 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:29,299 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:29,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:43:29,300 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:29,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1100453099, now seen corresponding path program 1 times [2022-12-12 21:43:29,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:29,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574311793] [2022-12-12 21:43:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:29,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:29,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:29,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574311793] [2022-12-12 21:43:29,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574311793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:29,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:29,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:43:29,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366175985] [2022-12-12 21:43:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:29,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:43:29,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:43:29,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:43:29,406 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 21:43:29,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 87 transitions, 1113 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:29,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 21:43:29,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:29,500 INFO L130 PetriNetUnfolder]: 320/690 cut-off events. [2022-12-12 21:43:29,500 INFO L131 PetriNetUnfolder]: For 1590/1671 co-relation queries the response was YES. [2022-12-12 21:43:29,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4669 conditions, 690 events. 320/690 cut-off events. For 1590/1671 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 3998 event pairs, 10 based on Foata normal form. 45/578 useless extension candidates. Maximal degree in co-relation 4640. Up to 518 conditions per place. [2022-12-12 21:43:29,504 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 42 selfloop transitions, 6 changer transitions 46/106 dead transitions. [2022-12-12 21:43:29,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 106 transitions, 1565 flow [2022-12-12 21:43:29,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:43:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:43:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-12-12 21:43:29,505 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2022-12-12 21:43:29,505 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 26 predicate places. [2022-12-12 21:43:29,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 106 transitions, 1565 flow [2022-12-12 21:43:29,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 60 transitions, 847 flow [2022-12-12 21:43:29,508 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 60 transitions, 847 flow [2022-12-12 21:43:29,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,508 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:29,508 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:29,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:43:29,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 21:43:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:29,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1255183712, now seen corresponding path program 1 times [2022-12-12 21:43:29,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:29,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311470195] [2022-12-12 21:43:29,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:29,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:29,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:29,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311470195] [2022-12-12 21:43:29,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311470195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:29,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:29,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:43:29,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46244029] [2022-12-12 21:43:29,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:29,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:43:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:43:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:43:29,626 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 21:43:29,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 60 transitions, 847 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:29,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 21:43:29,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:29,672 INFO L130 PetriNetUnfolder]: 154/319 cut-off events. [2022-12-12 21:43:29,672 INFO L131 PetriNetUnfolder]: For 1007/1044 co-relation queries the response was YES. [2022-12-12 21:43:29,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 319 events. 154/319 cut-off events. For 1007/1044 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1410 event pairs, 0 based on Foata normal form. 34/274 useless extension candidates. Maximal degree in co-relation 2414. Up to 254 conditions per place. [2022-12-12 21:43:29,673 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2022-12-12 21:43:29,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 1106 flow [2022-12-12 21:43:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:43:29,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:43:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2022-12-12 21:43:29,674 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2022-12-12 21:43:29,676 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 24 predicate places. [2022-12-12 21:43:29,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 69 transitions, 1106 flow [2022-12-12 21:43:29,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 21:43:29,676 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 21:43:29,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:29,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 21:43:29,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 21:43:29,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 21:43:29,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 21:43:29,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:43:29,682 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:29,687 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:43:29,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:43:29,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:43:29 BasicIcfg [2022-12-12 21:43:29,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:43:29,693 INFO L158 Benchmark]: Toolchain (without parser) took 5271.65ms. Allocated memory was 218.1MB in the beginning and 368.1MB in the end (delta: 149.9MB). Free memory was 193.5MB in the beginning and 300.2MB in the end (delta: -106.7MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. [2022-12-12 21:43:29,693 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 218.1MB. Free memory was 194.5MB in the beginning and 194.3MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:43:29,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.22ms. Allocated memory is still 218.1MB. Free memory was 193.5MB in the beginning and 169.3MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-12 21:43:29,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.71ms. Allocated memory is still 218.1MB. Free memory was 169.3MB in the beginning and 167.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:43:29,694 INFO L158 Benchmark]: Boogie Preprocessor took 27.44ms. Allocated memory is still 218.1MB. Free memory was 167.2MB in the beginning and 166.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 21:43:29,694 INFO L158 Benchmark]: RCFGBuilder took 413.01ms. Allocated memory is still 218.1MB. Free memory was 166.1MB in the beginning and 152.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 21:43:29,694 INFO L158 Benchmark]: TraceAbstraction took 4383.10ms. Allocated memory was 218.1MB in the beginning and 368.1MB in the end (delta: 149.9MB). Free memory was 150.9MB in the beginning and 300.2MB in the end (delta: -149.3MB). Peak memory consumption was 2.3MB. Max. memory is 8.0GB. [2022-12-12 21:43:29,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 218.1MB. Free memory was 194.5MB in the beginning and 194.3MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 393.22ms. Allocated memory is still 218.1MB. Free memory was 193.5MB in the beginning and 169.3MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.71ms. Allocated memory is still 218.1MB. Free memory was 169.3MB in the beginning and 167.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.44ms. Allocated memory is still 218.1MB. Free memory was 167.2MB in the beginning and 166.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 413.01ms. Allocated memory is still 218.1MB. Free memory was 166.1MB in the beginning and 152.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4383.10ms. Allocated memory was 218.1MB in the beginning and 368.1MB in the end (delta: 149.9MB). Free memory was 150.9MB in the beginning and 300.2MB in the end (delta: -149.3MB). Peak memory consumption was 2.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 80 PlacesBefore, 36 PlacesAfterwards, 71 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 1094, independent unconditional: 0, dependent: 56, dependent conditional: 56, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 0, independent unconditional: 1094, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 0, independent unconditional: 1094, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 0, independent unconditional: 1094, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 836, independent: 802, independent conditional: 0, independent unconditional: 802, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 836, independent: 776, independent conditional: 0, independent unconditional: 776, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1150, independent: 292, independent conditional: 0, independent unconditional: 292, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 836, unknown conditional: 0, unknown unconditional: 836] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1202, Positive conditional cache size: 0, Positive unconditional cache size: 1202, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 109 locations, 4 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: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 269 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 8 mSDtfsCounter, 456 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1113occurred in iteration=6, InterpolantAutomatonStates: 37, 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, 8 MinimizatonAttempts, 2949 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 21:43:29,710 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...