/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:00:24,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:00:24,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:00:24,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:00:24,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:00:24,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:00:24,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:00:24,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:00:24,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:00:24,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:00:24,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:00:24,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:00:24,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:00:24,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:00:24,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:00:24,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:00:24,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:00:24,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:00:24,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:00:24,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:00:24,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:00:24,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:00:24,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:00:24,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:00:24,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:00:24,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:00:24,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:00:24,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:00:24,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:00:24,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:00:24,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:00:24,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:00:24,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:00:24,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:00:24,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:00:24,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:00:24,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:00:24,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:00:24,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:00:24,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:00:24,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:00:24,829 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-RepeatedSemanticLbe.epf [2022-12-06 00:00:24,852 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:00:24,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:00:24,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:00:24,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:00:24,854 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:00:24,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:00:24,854 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:00:24,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:00:24,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:00:24,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:00:24,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:00:24,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:00:24,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:00:24,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:00:24,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:00:24,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:00:24,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:00:24,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:00:24,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:00:24,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:00:24,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:00:24,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:00:24,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:00:25,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:00:25,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:00:25,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:00:25,171 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:00:25,172 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:00:25,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-12-06 00:00:26,578 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:00:26,778 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:00:26,780 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-12-06 00:00:26,792 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba364d57/c7743f8000644cdb935e78fab0f35568/FLAG335c9cbf0 [2022-12-06 00:00:26,805 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba364d57/c7743f8000644cdb935e78fab0f35568 [2022-12-06 00:00:26,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:00:26,809 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:00:26,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:00:26,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:00:26,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:00:26,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:00:26" (1/1) ... [2022-12-06 00:00:26,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772820df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:26, skipping insertion in model container [2022-12-06 00:00:26,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:00:26" (1/1) ... [2022-12-06 00:00:26,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:00:26,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:00:26,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:26,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c[3512,3525] [2022-12-06 00:00:27,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:00:27,010 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:00:27,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:00:27,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:00:27,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c[3512,3525] [2022-12-06 00:00:27,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:00:27,053 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:00:27,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27 WrapperNode [2022-12-06 00:00:27,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:00:27,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:00:27,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:00:27,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:00:27,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,087 INFO L138 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2022-12-06 00:00:27,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:00:27,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:00:27,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:00:27,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:00:27,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:00:27,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:00:27,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:00:27,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:00:27,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (1/1) ... [2022-12-06 00:00:27,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:00:27,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:00:27,139 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) [2022-12-06 00:00:27,150 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 [2022-12-06 00:00:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:00:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:00:27,177 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:00:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:00:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:00:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:00:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:00:27,180 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 00:00:27,254 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:00:27,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:00:27,538 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:00:27,604 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:00:27,604 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 00:00:27,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:00:27 BoogieIcfgContainer [2022-12-06 00:00:27,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:00:27,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:00:27,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:00:27,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:00:27,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:00:26" (1/3) ... [2022-12-06 00:00:27,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4900a0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:00:27, skipping insertion in model container [2022-12-06 00:00:27,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:00:27" (2/3) ... [2022-12-06 00:00:27,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4900a0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:00:27, skipping insertion in model container [2022-12-06 00:00:27,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:00:27" (3/3) ... [2022-12-06 00:00:27,614 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2022-12-06 00:00:27,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:00:27,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:00:27,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:00:27,720 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 00:00:27,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 218 flow [2022-12-06 00:00:27,863 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-12-06 00:00:27,864 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:00:27,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 2/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-06 00:00:27,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 101 transitions, 218 flow [2022-12-06 00:00:27,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 91 transitions, 194 flow [2022-12-06 00:00:27,877 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:00:27,895 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 91 transitions, 194 flow [2022-12-06 00:00:27,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 194 flow [2022-12-06 00:00:27,920 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-12-06 00:00:27,921 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:00:27,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 2/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-06 00:00:27,923 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 91 transitions, 194 flow [2022-12-06 00:00:27,923 INFO L188 LiptonReduction]: Number of co-enabled transitions 572 [2022-12-06 00:00:31,337 INFO L203 LiptonReduction]: Total number of compositions: 68 [2022-12-06 00:00:31,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:00:31,354 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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;@4a32eded, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:00:31,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 00:00:31,360 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-06 00:00:31,360 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:00:31,360 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:00:31,361 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:00:31,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:00:31,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:00:31,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1970852786, now seen corresponding path program 1 times [2022-12-06 00:00:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:00:31,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624841559] [2022-12-06 00:00:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:00:31,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:00:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:00:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:00:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:00:31,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624841559] [2022-12-06 00:00:31,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624841559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:00:31,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:00:31,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:00:31,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798167060] [2022-12-06 00:00:31,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:00:31,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 00:00:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:00:31,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 00:00:31,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 00:00:31,817 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-06 00:00:31,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 58 flow. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2022-12-06 00:00:31,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:00:31,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-06 00:00:31,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:00:32,058 INFO L130 PetriNetUnfolder]: 217/431 cut-off events. [2022-12-06 00:00:32,058 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-06 00:00:32,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 431 events. 217/431 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1561 event pairs, 91 based on Foata normal form. 1/432 useless extension candidates. Maximal degree in co-relation 756. Up to 152 conditions per place. [2022-12-06 00:00:32,064 INFO L137 encePairwiseOnDemand]: 17/23 looper letters, 48 selfloop transitions, 7 changer transitions 14/69 dead transitions. [2022-12-06 00:00:32,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 69 transitions, 309 flow [2022-12-06 00:00:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:00:32,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:00:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2022-12-06 00:00:32,078 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3804347826086957 [2022-12-06 00:00:32,079 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 58 flow. Second operand 8 states and 70 transitions. [2022-12-06 00:00:32,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 69 transitions, 309 flow [2022-12-06 00:00:32,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 69 transitions, 287 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 00:00:32,084 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 88 flow [2022-12-06 00:00:32,085 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2022-12-06 00:00:32,087 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2022-12-06 00:00:32,088 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:00:32,088 INFO L89 Accepts]: Start accepts. Operand has 36 places, 28 transitions, 88 flow [2022-12-06 00:00:32,090 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:00:32,090 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:00:32,091 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 28 transitions, 88 flow [2022-12-06 00:00:32,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 28 transitions, 88 flow [2022-12-06 00:00:32,096 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-12-06 00:00:32,096 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:00:32,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 42 events. 0/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-06 00:00:32,097 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 28 transitions, 88 flow [2022-12-06 00:00:32,097 INFO L188 LiptonReduction]: Number of co-enabled transitions 190 [2022-12-06 00:00:32,128 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [297] L94-->L98: Formula: (= v_~i2~0_1 v_~i~0_3) InVars {~i~0=v_~i~0_3} OutVars{~i~0=v_~i~0_3, ~i2~0=v_~i2~0_1} AuxVars[] AssignedVars[~i2~0] and [287] L64-->L67: Formula: (= (+ v_~i1~0_2 1) v_~i~0_2) InVars {~i1~0=v_~i1~0_2} OutVars{~i~0=v_~i~0_2, ~i1~0=v_~i1~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 00:00:32,146 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [286] L60-->L64: Formula: (= v_~i1~0_1 v_~i~0_1) InVars {~i~0=v_~i~0_1} OutVars{~i~0=v_~i~0_1, ~i1~0=v_~i1~0_1} AuxVars[] AssignedVars[~i1~0] and [388] L94-->L67: Formula: (and (= v_~i~0_81 (+ v_~i1~0_53 1)) (= v_~i~0_82 v_~i2~0_57)) InVars {~i~0=v_~i~0_82, ~i1~0=v_~i1~0_53} OutVars{~i~0=v_~i~0_81, ~i2~0=v_~i2~0_57, ~i1~0=v_~i1~0_53} AuxVars[] AssignedVars[~i~0, ~i2~0] [2022-12-06 00:00:32,166 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [390] L60-->L67: Formula: (and (= (+ v_~i1~0_57 1) v_~i~0_89) (= v_~i~0_90 v_~i2~0_59) (= v_~i~0_90 v_~i1~0_57)) InVars {~i~0=v_~i~0_90} OutVars{~i~0=v_~i~0_89, ~i2~0=v_~i2~0_59, ~i1~0=v_~i1~0_57} AuxVars[] AssignedVars[~i~0, ~i2~0, ~i1~0] and [298] L98-->L101: Formula: (= (+ v_~i2~0_2 1) v_~i~0_4) InVars {~i2~0=v_~i2~0_2} OutVars{~i~0=v_~i~0_4, ~i2~0=v_~i2~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 00:00:32,212 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 00:00:32,213 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 125 [2022-12-06 00:00:32,213 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 82 flow [2022-12-06 00:00:32,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2022-12-06 00:00:32,214 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:00:32,214 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:00:32,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:00:32,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:00:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:00:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1825815744, now seen corresponding path program 1 times [2022-12-06 00:00:32,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:00:32,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542458448] [2022-12-06 00:00:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:00:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:00:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:00:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:00:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:00:32,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542458448] [2022-12-06 00:00:32,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542458448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:00:32,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:00:32,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:00:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663073385] [2022-12-06 00:00:32,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:00:32,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:00:32,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:00:32,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:00:32,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:00:32,397 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-06 00:00:32,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 82 flow. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-06 00:00:32,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:00:32,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-06 00:00:32,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:00:32,499 INFO L130 PetriNetUnfolder]: 167/325 cut-off events. [2022-12-06 00:00:32,499 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2022-12-06 00:00:32,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 325 events. 167/325 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1095 event pairs, 79 based on Foata normal form. 1/326 useless extension candidates. Maximal degree in co-relation 750. Up to 152 conditions per place. [2022-12-06 00:00:32,502 INFO L137 encePairwiseOnDemand]: 19/25 looper letters, 22 selfloop transitions, 3 changer transitions 21/46 dead transitions. [2022-12-06 00:00:32,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 46 transitions, 215 flow [2022-12-06 00:00:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:00:32,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:00:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2022-12-06 00:00:32,504 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.376 [2022-12-06 00:00:32,504 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 82 flow. Second operand 5 states and 47 transitions. [2022-12-06 00:00:32,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 46 transitions, 215 flow [2022-12-06 00:00:32,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 208 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-06 00:00:32,506 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 66 flow [2022-12-06 00:00:32,506 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2022-12-06 00:00:32,507 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-12-06 00:00:32,507 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:00:32,507 INFO L89 Accepts]: Start accepts. Operand has 35 places, 22 transitions, 66 flow [2022-12-06 00:00:32,509 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:00:32,509 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:00:32,509 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 22 transitions, 66 flow [2022-12-06 00:00:32,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 22 transitions, 66 flow [2022-12-06 00:00:32,514 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-12-06 00:00:32,514 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 00:00:32,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 24 events. 0/24 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 00:00:32,515 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 22 transitions, 66 flow [2022-12-06 00:00:32,515 INFO L188 LiptonReduction]: Number of co-enabled transitions 110 [2022-12-06 00:00:32,542 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:00:32,543 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 36 [2022-12-06 00:00:32,544 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 64 flow [2022-12-06 00:00:32,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-06 00:00:32,544 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:00:32,544 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:00:32,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 00:00:32,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:00:32,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:00:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash 456412691, now seen corresponding path program 1 times [2022-12-06 00:00:32,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:00:32,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373918390] [2022-12-06 00:00:32,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:00:32,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:00:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:00:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:00:32,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:00:32,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373918390] [2022-12-06 00:00:32,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373918390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:00:32,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:00:32,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:00:32,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428706048] [2022-12-06 00:00:32,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:00:32,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 00:00:32,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:00:32,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 00:00:32,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 00:00:32,846 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 21 [2022-12-06 00:00:32,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-12-06 00:00:32,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:00:32,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 21 [2022-12-06 00:00:32,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:00:32,958 INFO L130 PetriNetUnfolder]: 114/253 cut-off events. [2022-12-06 00:00:32,959 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-06 00:00:32,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 253 events. 114/253 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 881 event pairs, 29 based on Foata normal form. 6/259 useless extension candidates. Maximal degree in co-relation 546. Up to 118 conditions per place. [2022-12-06 00:00:32,961 INFO L137 encePairwiseOnDemand]: 14/21 looper letters, 26 selfloop transitions, 4 changer transitions 16/47 dead transitions. [2022-12-06 00:00:32,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 219 flow [2022-12-06 00:00:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 00:00:32,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 00:00:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2022-12-06 00:00:32,963 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.42063492063492064 [2022-12-06 00:00:32,963 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 64 flow. Second operand 6 states and 53 transitions. [2022-12-06 00:00:32,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 219 flow [2022-12-06 00:00:32,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 47 transitions, 204 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-12-06 00:00:32,966 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 79 flow [2022-12-06 00:00:32,966 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2022-12-06 00:00:32,967 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-12-06 00:00:32,967 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:00:32,967 INFO L89 Accepts]: Start accepts. Operand has 35 places, 22 transitions, 79 flow [2022-12-06 00:00:32,969 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:00:32,969 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:00:32,969 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 22 transitions, 79 flow [2022-12-06 00:00:32,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 22 transitions, 79 flow [2022-12-06 00:00:32,975 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-12-06 00:00:32,975 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 00:00:32,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 30 events. 0/30 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-06 00:00:32,976 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 22 transitions, 79 flow [2022-12-06 00:00:32,976 INFO L188 LiptonReduction]: Number of co-enabled transitions 80 [2022-12-06 00:00:32,976 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [387] L94-->L101: Formula: (and (= v_~i~0_77 (+ v_~i2~0_55 1)) (= v_~i~0_78 v_~i2~0_55)) InVars {~i~0=v_~i~0_78} OutVars{~i~0=v_~i~0_77, ~i2~0=v_~i2~0_55} AuxVars[] AssignedVars[~i~0, ~i2~0] and [394] L64-->thread1EXIT: Formula: (and (= (+ v_~i1~0_61 1) v_~i~0_107) (= |v_thread1Thread1of1ForFork0_#res#1.base_23| 0) (= v_~n1~0_234 0) (= |v_thread1Thread1of1ForFork0_#res#1.offset_23| 0)) InVars {~i1~0=v_~i1~0_61} OutVars{thread1Thread1of1ForFork0_#res#1.offset=|v_thread1Thread1of1ForFork0_#res#1.offset_23|, ~i~0=v_~i~0_107, ~n1~0=v_~n1~0_234, ~i1~0=v_~i1~0_61, thread1Thread1of1ForFork0_#res#1.base=|v_thread1Thread1of1ForFork0_#res#1.base_23|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res#1.offset, ~i~0, ~n1~0, thread1Thread1of1ForFork0_#res#1.base] [2022-12-06 00:00:33,082 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [394] L64-->thread1EXIT: Formula: (and (= (+ v_~i1~0_61 1) v_~i~0_107) (= |v_thread1Thread1of1ForFork0_#res#1.base_23| 0) (= v_~n1~0_234 0) (= |v_thread1Thread1of1ForFork0_#res#1.offset_23| 0)) InVars {~i1~0=v_~i1~0_61} OutVars{thread1Thread1of1ForFork0_#res#1.offset=|v_thread1Thread1of1ForFork0_#res#1.offset_23|, ~i~0=v_~i~0_107, ~n1~0=v_~n1~0_234, ~i1~0=v_~i1~0_61, thread1Thread1of1ForFork0_#res#1.base=|v_thread1Thread1of1ForFork0_#res#1.base_23|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res#1.offset, ~i~0, ~n1~0, thread1Thread1of1ForFork0_#res#1.base] and [340] $Ultimate##0-->L81: Formula: (and (= v_~n2~0_84 (ite (< v_~n2~0_85 v_~n1~0_76) v_~n1~0_76 v_~n2~0_85)) (= v_~e2~0_30 1)) InVars {~n2~0=v_~n2~0_85, ~n1~0=v_~n1~0_76} OutVars{~n2~0=v_~n2~0_84, ~n1~0=v_~n1~0_76, ~e2~0=v_~e2~0_30} AuxVars[] AssignedVars[~n2~0, ~e2~0] [2022-12-06 00:00:33,106 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [286] L60-->L64: Formula: (= v_~i1~0_1 v_~i~0_1) InVars {~i~0=v_~i~0_1} OutVars{~i~0=v_~i~0_1, ~i1~0=v_~i1~0_1} AuxVars[] AssignedVars[~i1~0] and [395] L94-->thread1EXIT: Formula: (and (= (+ v_~i1~0_63 1) v_~i~0_109) (= v_~n1~0_242 0) (= |v_thread1Thread1of1ForFork0_#res#1.offset_25| 0) (= |v_thread1Thread1of1ForFork0_#res#1.base_25| 0) (= v_~i2~0_67 v_~i~0_111)) InVars {~i~0=v_~i~0_111, ~i1~0=v_~i1~0_63} OutVars{thread1Thread1of1ForFork0_#res#1.offset=|v_thread1Thread1of1ForFork0_#res#1.offset_25|, ~i~0=v_~i~0_109, ~n1~0=v_~n1~0_242, ~i2~0=v_~i2~0_67, ~i1~0=v_~i1~0_63, thread1Thread1of1ForFork0_#res#1.base=|v_thread1Thread1of1ForFork0_#res#1.base_25|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res#1.offset, ~i~0, ~n1~0, ~i2~0, thread1Thread1of1ForFork0_#res#1.base] [2022-12-06 00:00:33,143 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [398] L60-->thread1EXIT: Formula: (and (= (+ v_~i1~0_67 1) v_~i~0_117) (= v_~n1~0_257 0) (= |v_thread1Thread1of1ForFork0_#res#1.offset_29| 0) (= v_~i2~0_69 v_~i~0_118) (= v_~i1~0_67 v_~i~0_118) (= |v_thread1Thread1of1ForFork0_#res#1.base_29| 0)) InVars {~i~0=v_~i~0_118} OutVars{thread1Thread1of1ForFork0_#res#1.offset=|v_thread1Thread1of1ForFork0_#res#1.offset_29|, ~i~0=v_~i~0_117, ~n1~0=v_~n1~0_257, ~i2~0=v_~i2~0_69, ~i1~0=v_~i1~0_67, thread1Thread1of1ForFork0_#res#1.base=|v_thread1Thread1of1ForFork0_#res#1.base_29|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res#1.offset, ~i~0, ~n1~0, ~i2~0, ~i1~0, thread1Thread1of1ForFork0_#res#1.base] and [328] L101-->thread2EXIT: Formula: (and (= v_~n2~0_62 0) (= |v_thread2Thread1of1ForFork1_#res#1.base_9| 0) (= |v_thread2Thread1of1ForFork1_#res#1.offset_9| 0)) InVars {} OutVars{thread2Thread1of1ForFork1_#res#1.base=|v_thread2Thread1of1ForFork1_#res#1.base_9|, ~n2~0=v_~n2~0_62, thread2Thread1of1ForFork1_#res#1.offset=|v_thread2Thread1of1ForFork1_#res#1.offset_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#res#1.base, ~n2~0, thread2Thread1of1ForFork1_#res#1.offset] [2022-12-06 00:00:33,180 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 00:00:33,181 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 00:00:33,182 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 00:00:33,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:00:33,183 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 00:00:33,185 INFO L158 Benchmark]: Toolchain (without parser) took 6376.30ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 165.6MB in the beginning and 189.8MB in the end (delta: -24.2MB). Peak memory consumption was 132.9MB. Max. memory is 8.0GB. [2022-12-06 00:00:33,185 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:00:33,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.45ms. Allocated memory is still 188.7MB. Free memory was 165.4MB in the beginning and 150.4MB in the end (delta: 15.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-06 00:00:33,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.01ms. Allocated memory is still 188.7MB. Free memory was 150.4MB in the beginning and 148.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:00:33,186 INFO L158 Benchmark]: Boogie Preprocessor took 19.02ms. Allocated memory is still 188.7MB. Free memory was 148.4MB in the beginning and 147.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:00:33,187 INFO L158 Benchmark]: RCFGBuilder took 498.75ms. Allocated memory is still 188.7MB. Free memory was 147.0MB in the beginning and 129.5MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-06 00:00:33,187 INFO L158 Benchmark]: TraceAbstraction took 5575.87ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 128.9MB in the beginning and 189.8MB in the end (delta: -60.8MB). Peak memory consumption was 96.2MB. Max. memory is 8.0GB. [2022-12-06 00:00:33,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.45ms. Allocated memory is still 188.7MB. Free memory was 165.4MB in the beginning and 150.4MB in the end (delta: 15.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.01ms. Allocated memory is still 188.7MB. Free memory was 150.4MB in the beginning and 148.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.02ms. Allocated memory is still 188.7MB. Free memory was 148.4MB in the beginning and 147.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 498.75ms. Allocated memory is still 188.7MB. Free memory was 147.0MB in the beginning and 129.5MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5575.87ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 128.9MB in the beginning and 189.8MB in the end (delta: -60.8MB). Peak memory consumption was 96.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 96 PlacesBefore, 30 PlacesAfterwards, 91 TransitionsBefore, 23 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 51 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 471, independent: 417, independent conditional: 417, independent unconditional: 0, dependent: 54, dependent conditional: 54, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 471, independent: 417, independent conditional: 0, independent unconditional: 417, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 471, independent: 417, independent conditional: 0, independent unconditional: 417, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 471, independent: 417, independent conditional: 0, independent unconditional: 417, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 359, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 359, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 471, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 359, unknown conditional: 0, unknown unconditional: 359] , Statistics on independence cache: Total cache size (in pairs): 468, Positive cache size: 436, Positive conditional cache size: 0, Positive unconditional cache size: 436, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 34 PlacesBefore, 32 PlacesAfterwards, 28 TransitionsBefore, 25 TransitionsAfterwards, 190 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 248, independent: 182, independent conditional: 182, independent unconditional: 0, dependent: 66, dependent conditional: 66, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 248, independent: 182, independent conditional: 31, independent unconditional: 151, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 248, independent: 182, independent conditional: 25, independent unconditional: 157, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 248, independent: 182, independent conditional: 25, independent unconditional: 157, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 73, independent: 58, independent conditional: 16, independent unconditional: 42, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 73, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 248, independent: 124, independent conditional: 9, independent unconditional: 115, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 73, unknown conditional: 16, unknown unconditional: 57] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 61, Positive conditional cache size: 16, Positive unconditional cache size: 45, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 34 PlacesBefore, 33 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, independent: 46, independent conditional: 46, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 76, independent: 46, independent conditional: 2, independent unconditional: 44, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 72, Positive conditional cache size: 16, Positive unconditional cache size: 56, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 33 PlacesBefore, 32 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 82, independent: 48, independent conditional: 48, independent unconditional: 0, dependent: 34, dependent conditional: 34, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 82, independent: 48, independent conditional: 2, independent unconditional: 46, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 82, independent: 48, independent conditional: 2, independent unconditional: 46, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 82, independent: 48, independent conditional: 2, independent unconditional: 46, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 1, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 2, independent conditional: 1, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 82, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 22, unknown conditional: 2, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 103, Positive conditional cache size: 21, Positive unconditional cache size: 82, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 00:00:33,205 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...