/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:42:38,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:42:38,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:42:38,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:42:38,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:42:38,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:42:38,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:42:38,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:42:38,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:42:38,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:42:38,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:42:38,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:42:38,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:42:38,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:42:38,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:42:38,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:42:38,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:42:38,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:42:38,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:42:38,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:42:38,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:42:38,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:42:38,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:42:38,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:42:38,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:42:38,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:42:38,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:42:38,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:42:38,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:42:38,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:42:38,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:42:38,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:42:38,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:42:38,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:42:38,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:42:38,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:42:38,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:42:38,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:42:38,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:42:38,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:42:38,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:42:38,731 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 05:42:38,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:42:38,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:42:38,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:42:38,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:42:38,765 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:42:38,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:42:38,766 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:42:38,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:42:38,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:42:38,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:42:38,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:42:38,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:42:38,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:42:38,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:42:38,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:42:38,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:42:38,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:42:38,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:42:38,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:42:38,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:42:38,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:42:38,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:42:38,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:42:39,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:42:39,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:42:39,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:42:39,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:42:39,120 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:42:39,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2022-12-06 05:42:40,269 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:42:40,495 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:42:40,496 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2022-12-06 05:42:40,502 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0e607eb/8b7b99e44b6f4478a1ebb4e4c9ca748a/FLAGd131ba497 [2022-12-06 05:42:40,514 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0e607eb/8b7b99e44b6f4478a1ebb4e4c9ca748a [2022-12-06 05:42:40,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:42:40,519 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:42:40,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:42:40,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:42:40,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:42:40,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55118905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40, skipping insertion in model container [2022-12-06 05:42:40,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:42:40,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:42:40,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,743 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/spaghetti.wvr.c[3221,3234] [2022-12-06 05:42:40,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:42:40,760 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:42:40,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:40,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:40,806 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/spaghetti.wvr.c[3221,3234] [2022-12-06 05:42:40,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:42:40,822 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:42:40,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40 WrapperNode [2022-12-06 05:42:40,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:42:40,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:42:40,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:42:40,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:42:40,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,868 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-12-06 05:42:40,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:42:40,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:42:40,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:42:40,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:42:40,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:42:40,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:42:40,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:42:40,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:42:40,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (1/1) ... [2022-12-06 05:42:40,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:42:40,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:40,943 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 05:42:40,965 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 05:42:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:42:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:42:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 05:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 05:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 05:42:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:42:40,987 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 05:42:41,060 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:42:41,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:42:41,293 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:42:41,305 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:42:41,306 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 05:42:41,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:41 BoogieIcfgContainer [2022-12-06 05:42:41,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:42:41,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:42:41,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:42:41,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:42:41,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:42:40" (1/3) ... [2022-12-06 05:42:41,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526be203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:41, skipping insertion in model container [2022-12-06 05:42:41,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:40" (2/3) ... [2022-12-06 05:42:41,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526be203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:41, skipping insertion in model container [2022-12-06 05:42:41,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:41" (3/3) ... [2022-12-06 05:42:41,343 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2022-12-06 05:42:41,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:42:41,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:42:41,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:42:41,495 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 05:42:41,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 121 transitions, 274 flow [2022-12-06 05:42:41,598 INFO L130 PetriNetUnfolder]: 9/117 cut-off events. [2022-12-06 05:42:41,598 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 05:42:41,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 117 events. 9/117 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2022-12-06 05:42:41,605 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 121 transitions, 274 flow [2022-12-06 05:42:41,614 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 105 transitions, 234 flow [2022-12-06 05:42:41,616 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:41,636 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 105 transitions, 234 flow [2022-12-06 05:42:41,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 234 flow [2022-12-06 05:42:41,696 INFO L130 PetriNetUnfolder]: 9/105 cut-off events. [2022-12-06 05:42:41,697 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 05:42:41,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 105 events. 9/105 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 111 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2022-12-06 05:42:41,701 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 105 transitions, 234 flow [2022-12-06 05:42:41,701 INFO L188 LiptonReduction]: Number of co-enabled transitions 2714 [2022-12-06 05:42:44,741 INFO L203 LiptonReduction]: Total number of compositions: 76 [2022-12-06 05:42:44,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:42:44,759 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;@45e5c96b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:42:44,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 05:42:44,765 INFO L130 PetriNetUnfolder]: 4/28 cut-off events. [2022-12-06 05:42:44,765 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 05:42:44,766 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:44,766 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 05:42:44,766 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 2 more)] === [2022-12-06 05:42:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:44,770 INFO L85 PathProgramCache]: Analyzing trace with hash -828056747, now seen corresponding path program 1 times [2022-12-06 05:42:44,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:44,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744563447] [2022-12-06 05:42:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:44,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:45,310 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 05:42:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:45,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744563447] [2022-12-06 05:42:45,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744563447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:45,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:45,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:42:45,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168052169] [2022-12-06 05:42:45,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:45,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:42:45,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:42:45,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:42:45,341 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 05:42:45,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 82 flow. Second operand has 4 states, 3 states have (on average 7.0) 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 05:42:45,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:45,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 05:42:45,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:45,633 INFO L130 PetriNetUnfolder]: 1311/1791 cut-off events. [2022-12-06 05:42:45,633 INFO L131 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2022-12-06 05:42:45,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3758 conditions, 1791 events. 1311/1791 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 6465 event pairs, 291 based on Foata normal form. 1/1314 useless extension candidates. Maximal degree in co-relation 2852. Up to 733 conditions per place. [2022-12-06 05:42:45,647 INFO L137 encePairwiseOnDemand]: 20/29 looper letters, 47 selfloop transitions, 10 changer transitions 13/70 dead transitions. [2022-12-06 05:42:45,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 70 transitions, 328 flow [2022-12-06 05:42:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:42:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:42:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2022-12-06 05:42:45,658 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6120689655172413 [2022-12-06 05:42:45,659 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 4 states and 71 transitions. [2022-12-06 05:42:45,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 70 transitions, 328 flow [2022-12-06 05:42:45,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 70 transitions, 296 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-06 05:42:45,668 INFO L231 Difference]: Finished difference. Result has 36 places, 39 transitions, 144 flow [2022-12-06 05:42:45,670 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2022-12-06 05:42:45,673 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2022-12-06 05:42:45,673 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:45,674 INFO L89 Accepts]: Start accepts. Operand has 36 places, 39 transitions, 144 flow [2022-12-06 05:42:45,680 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:45,681 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:45,681 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 39 transitions, 144 flow [2022-12-06 05:42:45,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 39 transitions, 144 flow [2022-12-06 05:42:45,702 INFO L130 PetriNetUnfolder]: 50/139 cut-off events. [2022-12-06 05:42:45,702 INFO L131 PetriNetUnfolder]: For 38/47 co-relation queries the response was YES. [2022-12-06 05:42:45,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 139 events. 50/139 cut-off events. For 38/47 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 494 event pairs, 8 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 251. Up to 40 conditions per place. [2022-12-06 05:42:45,704 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 39 transitions, 144 flow [2022-12-06 05:42:45,704 INFO L188 LiptonReduction]: Number of co-enabled transitions 452 [2022-12-06 05:42:45,716 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:45,719 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 46 [2022-12-06 05:42:45,719 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 39 transitions, 144 flow [2022-12-06 05:42:45,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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 05:42:45,719 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:45,719 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 05:42:45,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:42:45,723 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 2 more)] === [2022-12-06 05:42:45,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:45,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1142912431, now seen corresponding path program 2 times [2022-12-06 05:42:45,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:45,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462090] [2022-12-06 05:42:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:45,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:45,909 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 05:42:45,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:45,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462090] [2022-12-06 05:42:45,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:45,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:45,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:42:45,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842942819] [2022-12-06 05:42:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:45,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:42:45,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:45,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:42:45,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:42:45,912 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-06 05:42:45,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 39 transitions, 144 flow. Second operand has 4 states, 3 states have (on average 7.0) 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 05:42:45,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:45,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-06 05:42:45,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:46,131 INFO L130 PetriNetUnfolder]: 1526/2116 cut-off events. [2022-12-06 05:42:46,132 INFO L131 PetriNetUnfolder]: For 1386/1386 co-relation queries the response was YES. [2022-12-06 05:42:46,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5881 conditions, 2116 events. 1526/2116 cut-off events. For 1386/1386 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 7973 event pairs, 361 based on Foata normal form. 1/2117 useless extension candidates. Maximal degree in co-relation 2147. Up to 1061 conditions per place. [2022-12-06 05:42:46,138 INFO L137 encePairwiseOnDemand]: 20/29 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2022-12-06 05:42:46,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 87 transitions, 488 flow [2022-12-06 05:42:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:42:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:42:46,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2022-12-06 05:42:46,146 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.603448275862069 [2022-12-06 05:42:46,146 INFO L175 Difference]: Start difference. First operand has 36 places, 39 transitions, 144 flow. Second operand 4 states and 70 transitions. [2022-12-06 05:42:46,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 87 transitions, 488 flow [2022-12-06 05:42:46,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 87 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 05:42:46,150 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2022-12-06 05:42:46,151 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2022-12-06 05:42:46,151 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-12-06 05:42:46,152 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:46,152 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 0 transitions, 0 flow [2022-12-06 05:42:46,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 05:42:46,152 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 05:42:46,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 05:42:46,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 05:42:46,153 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 05:42:46,153 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 05:42:46,153 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:46,154 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 05:42:46,155 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 05:42:46,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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 05:42:46,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 05:42:46,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 05:42:46,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 05:42:46,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 05:42:46,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 05:42:46,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 05:42:46,159 INFO L458 BasicCegarLoop]: Path program histogram: [2] [2022-12-06 05:42:46,162 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 05:42:46,162 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 05:42:46,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:42:46 BasicIcfg [2022-12-06 05:42:46,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 05:42:46,165 INFO L158 Benchmark]: Toolchain (without parser) took 5646.25ms. Allocated memory was 209.7MB in the beginning and 262.1MB in the end (delta: 52.4MB). Free memory was 185.0MB in the beginning and 93.1MB in the end (delta: 91.9MB). Peak memory consumption was 144.8MB. Max. memory is 8.0GB. [2022-12-06 05:42:46,165 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 209.7MB. Free memory was 186.0MB in the beginning and 185.9MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:42:46,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.65ms. Allocated memory is still 209.7MB. Free memory was 185.0MB in the beginning and 170.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 05:42:46,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.45ms. Allocated memory is still 209.7MB. Free memory was 170.3MB in the beginning and 168.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 05:42:46,166 INFO L158 Benchmark]: Boogie Preprocessor took 33.26ms. Allocated memory is still 209.7MB. Free memory was 168.8MB in the beginning and 167.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:42:46,166 INFO L158 Benchmark]: RCFGBuilder took 433.51ms. Allocated memory is still 209.7MB. Free memory was 167.2MB in the beginning and 152.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 05:42:46,167 INFO L158 Benchmark]: TraceAbstraction took 4826.38ms. Allocated memory was 209.7MB in the beginning and 262.1MB in the end (delta: 52.4MB). Free memory was 152.0MB in the beginning and 93.1MB in the end (delta: 58.8MB). Peak memory consumption was 112.3MB. Max. memory is 8.0GB. [2022-12-06 05:42:46,168 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 209.7MB. Free memory was 186.0MB in the beginning and 185.9MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 301.65ms. Allocated memory is still 209.7MB. Free memory was 185.0MB in the beginning and 170.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.45ms. Allocated memory is still 209.7MB. Free memory was 170.3MB in the beginning and 168.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.26ms. Allocated memory is still 209.7MB. Free memory was 168.8MB in the beginning and 167.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 433.51ms. Allocated memory is still 209.7MB. Free memory was 167.2MB in the beginning and 152.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4826.38ms. Allocated memory was 209.7MB in the beginning and 262.1MB in the end (delta: 52.4MB). Free memory was 152.0MB in the beginning and 93.1MB in the end (delta: 58.8MB). Peak memory consumption was 112.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 109 PlacesBefore, 38 PlacesAfterwards, 105 TransitionsBefore, 29 TransitionsAfterwards, 2714 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 43 ConcurrentYvCompositions, 5 ChoiceCompositions, 76 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1527, independent: 1506, independent conditional: 1506, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1527, independent: 1506, independent conditional: 0, independent unconditional: 1506, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1527, independent: 1506, independent conditional: 0, independent unconditional: 1506, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1527, independent: 1506, independent conditional: 0, independent unconditional: 1506, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1490, independent: 1473, independent conditional: 0, independent unconditional: 1473, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1490, independent: 1441, independent conditional: 0, independent unconditional: 1441, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1527, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1490, unknown conditional: 0, unknown unconditional: 1490] , Statistics on independence cache: Total cache size (in pairs): 2451, Positive cache size: 2434, Positive conditional cache size: 0, Positive unconditional cache size: 2434, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 452 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 44, independent: 40, independent conditional: 10, independent unconditional: 30, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, independent: 40, independent conditional: 6, independent unconditional: 34, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, independent: 40, independent conditional: 6, independent unconditional: 34, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, independent: 30, independent conditional: 4, independent unconditional: 26, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, independent: 10, independent conditional: 2, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 34, unknown conditional: 4, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 30, Positive conditional cache size: 4, Positive unconditional cache size: 26, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 30, Positive conditional cache size: 4, Positive unconditional cache size: 26, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 127]: 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 9 procedures, 155 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 6 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=1, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 05:42:46,186 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...