/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:43:16,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:43:16,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:43:16,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:43:16,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:43:16,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:43:16,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:43:16,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:43:16,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:43:16,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:43:16,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:43:16,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:43:16,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:43:16,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:43:16,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:43:16,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:43:16,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:43:16,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:43:16,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:43:16,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:43:16,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:43:16,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:43:16,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:43:16,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:43:16,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:43:16,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:43:16,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:43:16,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:43:16,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:43:16,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:43:16,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:43:16,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:43:16,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:43:16,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:43:16,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:43:16,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:43:16,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:43:16,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:43:16,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:43:16,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:43:16,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:43:16,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 18:43:16,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:43:16,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:43:16,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:43:16,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:43:16,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:43:16,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:43:16,737 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:43:16,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:43:16,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:43:16,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:43:16,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:43:16,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:43:16,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:43:16,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:43:16,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:43:16,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:43:17,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:43:17,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:43:17,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:43:17,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:43:17,165 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:43:17,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2022-12-12 18:43:18,070 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:43:18,394 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:43:18,394 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2022-12-12 18:43:18,426 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586fc2e0c/adaf6770684a4bc8b8e53c66d31dd636/FLAGff7810491 [2022-12-12 18:43:18,460 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586fc2e0c/adaf6770684a4bc8b8e53c66d31dd636 [2022-12-12 18:43:18,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:43:18,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:43:18,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:43:18,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:43:18,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:43:18,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25da5bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18, skipping insertion in model container [2022-12-12 18:43:18,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:43:18,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:43:18,659 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2022-12-12 18:43:18,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:43:18,810 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:43:18,820 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2022-12-12 18:43:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:43:18,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:43:18,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:43:18,891 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:43:18,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18 WrapperNode [2022-12-12 18:43:18,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:43:18,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:43:18,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:43:18,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:43:18,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,943 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-12 18:43:18,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:43:18,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:43:18,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:43:18,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:43:18,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:43:18,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:43:18,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:43:18,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:43:18,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (1/1) ... [2022-12-12 18:43:18,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:43:18,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:43:19,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 18:43:19,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 18:43:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:43:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:43:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:43:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:43:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:43:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 18:43:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 18:43:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 18:43:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 18:43:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 18:43:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 18:43:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:43:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:43:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:43:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:43:19,046 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 18:43:19,223 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:43:19,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:43:19,387 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:43:19,391 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:43:19,392 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:43:19,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:43:19 BoogieIcfgContainer [2022-12-12 18:43:19,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:43:19,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:43:19,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:43:19,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:43:19,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:43:18" (1/3) ... [2022-12-12 18:43:19,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4420634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:43:19, skipping insertion in model container [2022-12-12 18:43:19,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:43:18" (2/3) ... [2022-12-12 18:43:19,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4420634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:43:19, skipping insertion in model container [2022-12-12 18:43:19,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:43:19" (3/3) ... [2022-12-12 18:43:19,399 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2022-12-12 18:43:19,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:43:19,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 18:43:19,413 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:43:19,468 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:43:19,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-12 18:43:19,583 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-12 18:43:19,584 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:43:19,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-12 18:43:19,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-12 18:43:19,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-12 18:43:19,593 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:43:19,609 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-12 18:43:19,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-12 18:43:19,634 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-12 18:43:19,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:43:19,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-12 18:43:19,637 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-12 18:43:19,637 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-12 18:43:21,329 INFO L241 LiptonReduction]: Total number of compositions: 53 [2022-12-12 18:43:21,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:43:21,347 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3695fac0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:43:21,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 18:43:21,352 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-12-12 18:43:21,352 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:43:21,352 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:21,353 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:21,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:21,357 INFO L85 PathProgramCache]: Analyzing trace with hash 254003369, now seen corresponding path program 1 times [2022-12-12 18:43:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:21,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694579237] [2022-12-12 18:43:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:21,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:21,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694579237] [2022-12-12 18:43:21,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694579237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:21,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:21,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:43:21,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862672514] [2022-12-12 18:43:21,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:21,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:43:21,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:43:21,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:43:21,747 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 18:43:21,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:21,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:21,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 18:43:21,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:21,960 INFO L130 PetriNetUnfolder]: 1030/1805 cut-off events. [2022-12-12 18:43:21,960 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-12 18:43:21,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3505 conditions, 1805 events. 1030/1805 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 11297 event pairs, 376 based on Foata normal form. 93/1508 useless extension candidates. Maximal degree in co-relation 3494. Up to 878 conditions per place. [2022-12-12 18:43:21,975 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 27 selfloop transitions, 6 changer transitions 0/40 dead transitions. [2022-12-12 18:43:21,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 158 flow [2022-12-12 18:43:21,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:43:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:43:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-12-12 18:43:21,984 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2022-12-12 18:43:21,987 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-12 18:43:21,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 40 transitions, 158 flow [2022-12-12 18:43:21,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 40 transitions, 158 flow [2022-12-12 18:43:21,994 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 40 transitions, 158 flow [2022-12-12 18:43:21,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:21,994 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:21,994 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:21,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:43:21,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash -715830677, now seen corresponding path program 1 times [2022-12-12 18:43:22,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:22,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060581028] [2022-12-12 18:43:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:22,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060581028] [2022-12-12 18:43:22,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060581028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:22,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:22,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:43:22,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792992212] [2022-12-12 18:43:22,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:22,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:43:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:43:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:43:22,176 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 18:43:22,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:22,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 18:43:22,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:22,314 INFO L130 PetriNetUnfolder]: 976/1739 cut-off events. [2022-12-12 18:43:22,314 INFO L131 PetriNetUnfolder]: For 85/89 co-relation queries the response was YES. [2022-12-12 18:43:22,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 1739 events. 976/1739 cut-off events. For 85/89 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10956 event pairs, 101 based on Foata normal form. 15/1379 useless extension candidates. Maximal degree in co-relation 4883. Up to 855 conditions per place. [2022-12-12 18:43:22,321 INFO L137 encePairwiseOnDemand]: 20/27 looper letters, 41 selfloop transitions, 7 changer transitions 0/55 dead transitions. [2022-12-12 18:43:22,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 55 transitions, 314 flow [2022-12-12 18:43:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:43:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:43:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2022-12-12 18:43:22,323 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6203703703703703 [2022-12-12 18:43:22,324 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2022-12-12 18:43:22,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 55 transitions, 314 flow [2022-12-12 18:43:22,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 55 transitions, 314 flow [2022-12-12 18:43:22,330 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 55 transitions, 314 flow [2022-12-12 18:43:22,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,331 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:22,331 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:22,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:43:22,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:22,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -715831111, now seen corresponding path program 1 times [2022-12-12 18:43:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261368627] [2022-12-12 18:43:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261368627] [2022-12-12 18:43:22,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261368627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:22,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:22,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:43:22,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708066935] [2022-12-12 18:43:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:22,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:43:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:22,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:43:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:43:22,442 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 18:43:22,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 55 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:22,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 18:43:22,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:22,562 INFO L130 PetriNetUnfolder]: 854/1536 cut-off events. [2022-12-12 18:43:22,562 INFO L131 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2022-12-12 18:43:22,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5669 conditions, 1536 events. 854/1536 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 9414 event pairs, 41 based on Foata normal form. 26/1223 useless extension candidates. Maximal degree in co-relation 5652. Up to 733 conditions per place. [2022-12-12 18:43:22,569 INFO L137 encePairwiseOnDemand]: 21/27 looper letters, 59 selfloop transitions, 9 changer transitions 9/84 dead transitions. [2022-12-12 18:43:22,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 84 transitions, 651 flow [2022-12-12 18:43:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:43:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:43:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2022-12-12 18:43:22,572 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 18:43:22,573 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2022-12-12 18:43:22,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 84 transitions, 651 flow [2022-12-12 18:43:22,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 75 transitions, 579 flow [2022-12-12 18:43:22,580 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 75 transitions, 579 flow [2022-12-12 18:43:22,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,580 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:22,581 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:22,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:43:22,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:22,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1669368135, now seen corresponding path program 1 times [2022-12-12 18:43:22,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:22,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327256565] [2022-12-12 18:43:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:22,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:22,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:22,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327256565] [2022-12-12 18:43:22,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327256565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:22,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:22,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:43:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117502846] [2022-12-12 18:43:22,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:22,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:43:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:22,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:43:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:43:22,690 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 18:43:22,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 75 transitions, 579 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:22,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 18:43:22,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:22,806 INFO L130 PetriNetUnfolder]: 953/1694 cut-off events. [2022-12-12 18:43:22,806 INFO L131 PetriNetUnfolder]: For 980/992 co-relation queries the response was YES. [2022-12-12 18:43:22,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7503 conditions, 1694 events. 953/1694 cut-off events. For 980/992 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 9812 event pairs, 8 based on Foata normal form. 63/1362 useless extension candidates. Maximal degree in co-relation 7483. Up to 926 conditions per place. [2022-12-12 18:43:22,813 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 62 selfloop transitions, 4 changer transitions 50/125 dead transitions. [2022-12-12 18:43:22,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 125 transitions, 1213 flow [2022-12-12 18:43:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:43:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:43:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2022-12-12 18:43:22,817 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-12 18:43:22,818 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places. [2022-12-12 18:43:22,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 125 transitions, 1213 flow [2022-12-12 18:43:22,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 75 transitions, 723 flow [2022-12-12 18:43:22,824 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 75 transitions, 723 flow [2022-12-12 18:43:22,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,824 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:22,824 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:22,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:43:22,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:22,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2054631459, now seen corresponding path program 1 times [2022-12-12 18:43:22,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:22,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203856702] [2022-12-12 18:43:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:22,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:22,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:22,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203856702] [2022-12-12 18:43:22,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203856702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:22,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:22,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:43:22,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400308660] [2022-12-12 18:43:22,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:22,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:43:22,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:22,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:43:22,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:43:22,932 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 18:43:22,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 75 transitions, 723 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:22,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:22,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 18:43:22,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:23,061 INFO L130 PetriNetUnfolder]: 833/1445 cut-off events. [2022-12-12 18:43:23,061 INFO L131 PetriNetUnfolder]: For 2721/2746 co-relation queries the response was YES. [2022-12-12 18:43:23,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7335 conditions, 1445 events. 833/1445 cut-off events. For 2721/2746 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7797 event pairs, 44 based on Foata normal form. 22/1145 useless extension candidates. Maximal degree in co-relation 7312. Up to 953 conditions per place. [2022-12-12 18:43:23,071 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 75 selfloop transitions, 27 changer transitions 73/182 dead transitions. [2022-12-12 18:43:23,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 182 transitions, 2092 flow [2022-12-12 18:43:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:43:23,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:43:23,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2022-12-12 18:43:23,072 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2022-12-12 18:43:23,073 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 15 predicate places. [2022-12-12 18:43:23,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 182 transitions, 2092 flow [2022-12-12 18:43:23,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 109 transitions, 1272 flow [2022-12-12 18:43:23,078 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 109 transitions, 1272 flow [2022-12-12 18:43:23,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:23,079 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:23,079 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:23,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:43:23,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash 2096686721, now seen corresponding path program 1 times [2022-12-12 18:43:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:23,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398531388] [2022-12-12 18:43:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:23,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:23,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398531388] [2022-12-12 18:43:23,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398531388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:23,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:23,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:43:23,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615154931] [2022-12-12 18:43:23,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:23,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:43:23,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:23,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:43:23,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:43:23,174 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 18:43:23,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 109 transitions, 1272 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:23,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:23,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 18:43:23,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:23,299 INFO L130 PetriNetUnfolder]: 542/1046 cut-off events. [2022-12-12 18:43:23,300 INFO L131 PetriNetUnfolder]: For 2868/2948 co-relation queries the response was YES. [2022-12-12 18:43:23,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6336 conditions, 1046 events. 542/1046 cut-off events. For 2868/2948 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5883 event pairs, 6 based on Foata normal form. 54/892 useless extension candidates. Maximal degree in co-relation 6310. Up to 881 conditions per place. [2022-12-12 18:43:23,307 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 59 selfloop transitions, 39 changer transitions 58/163 dead transitions. [2022-12-12 18:43:23,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 163 transitions, 2166 flow [2022-12-12 18:43:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 18:43:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 18:43:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2022-12-12 18:43:23,309 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2022-12-12 18:43:23,311 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2022-12-12 18:43:23,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 163 transitions, 2166 flow [2022-12-12 18:43:23,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 105 transitions, 1426 flow [2022-12-12 18:43:23,317 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 105 transitions, 1426 flow [2022-12-12 18:43:23,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:23,318 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:43:23,318 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:23,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:43:23,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 18:43:23,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:43:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash -788041536, now seen corresponding path program 1 times [2022-12-12 18:43:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:43:23,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111043861] [2022-12-12 18:43:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:43:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:43:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:43:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:43:23,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:43:23,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111043861] [2022-12-12 18:43:23,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111043861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:43:23,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:43:23,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:43:23,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322278170] [2022-12-12 18:43:23,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:43:23,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 18:43:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:43:23,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 18:43:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 18:43:23,405 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 18:43:23,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 105 transitions, 1426 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:23,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:43:23,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 18:43:23,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:43:23,498 INFO L130 PetriNetUnfolder]: 322/639 cut-off events. [2022-12-12 18:43:23,499 INFO L131 PetriNetUnfolder]: For 2670/2719 co-relation queries the response was YES. [2022-12-12 18:43:23,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4515 conditions, 639 events. 322/639 cut-off events. For 2670/2719 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3299 event pairs, 6 based on Foata normal form. 43/577 useless extension candidates. Maximal degree in co-relation 4486. Up to 507 conditions per place. [2022-12-12 18:43:23,500 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 0 selfloop transitions, 0 changer transitions 109/109 dead transitions. [2022-12-12 18:43:23,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 109 transitions, 1678 flow [2022-12-12 18:43:23,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 18:43:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 18:43:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 82 transitions. [2022-12-12 18:43:23,502 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.43386243386243384 [2022-12-12 18:43:23,502 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2022-12-12 18:43:23,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 109 transitions, 1678 flow [2022-12-12 18:43:23,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 18:43:23,503 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 18:43:23,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:43:23,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 18:43:23,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 18:43:23,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 18:43:23,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 18:43:23,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:43:23,506 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:43:23,508 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 18:43:23,508 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 18:43:23,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 06:43:23 BasicIcfg [2022-12-12 18:43:23,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 18:43:23,514 INFO L158 Benchmark]: Toolchain (without parser) took 5049.90ms. Allocated memory was 217.1MB in the beginning and 306.2MB in the end (delta: 89.1MB). Free memory was 191.4MB in the beginning and 146.1MB in the end (delta: 45.3MB). Peak memory consumption was 135.0MB. Max. memory is 8.0GB. [2022-12-12 18:43:23,515 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 217.1MB. Free memory was 193.5MB in the beginning and 193.5MB in the end (delta: 78.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 18:43:23,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.78ms. Allocated memory is still 217.1MB. Free memory was 191.4MB in the beginning and 167.8MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 18:43:23,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.42ms. Allocated memory is still 217.1MB. Free memory was 167.8MB in the beginning and 165.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 18:43:23,516 INFO L158 Benchmark]: Boogie Preprocessor took 22.08ms. Allocated memory is still 217.1MB. Free memory was 165.7MB in the beginning and 164.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 18:43:23,516 INFO L158 Benchmark]: RCFGBuilder took 426.52ms. Allocated memory is still 217.1MB. Free memory was 164.1MB in the beginning and 150.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 18:43:23,517 INFO L158 Benchmark]: TraceAbstraction took 4118.68ms. Allocated memory was 217.1MB in the beginning and 306.2MB in the end (delta: 89.1MB). Free memory was 149.4MB in the beginning and 146.1MB in the end (delta: 3.4MB). Peak memory consumption was 93.0MB. Max. memory is 8.0GB. [2022-12-12 18:43:23,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 217.1MB. Free memory was 193.5MB in the beginning and 193.5MB in the end (delta: 78.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 425.78ms. Allocated memory is still 217.1MB. Free memory was 191.4MB in the beginning and 167.8MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.42ms. Allocated memory is still 217.1MB. Free memory was 167.8MB in the beginning and 165.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.08ms. Allocated memory is still 217.1MB. Free memory was 165.7MB in the beginning and 164.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 426.52ms. Allocated memory is still 217.1MB. Free memory was 164.1MB in the beginning and 150.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4118.68ms. Allocated memory was 217.1MB in the beginning and 306.2MB in the end (delta: 89.1MB). Free memory was 149.4MB in the beginning and 146.1MB in the end (delta: 3.4MB). Peak memory consumption was 93.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 79 PlacesBefore, 36 PlacesAfterwards, 70 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1005, independent: 945, independent conditional: 945, independent unconditional: 0, dependent: 60, dependent conditional: 60, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1005, independent: 945, independent conditional: 0, independent unconditional: 945, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1005, independent: 945, independent conditional: 0, independent unconditional: 945, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1005, independent: 945, independent conditional: 0, independent unconditional: 945, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 758, independent: 719, independent conditional: 0, independent unconditional: 719, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 758, independent: 710, independent conditional: 0, independent unconditional: 710, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 113, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1005, independent: 226, independent conditional: 0, independent unconditional: 226, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 758, unknown conditional: 0, unknown unconditional: 758] , Statistics on independence cache: Total cache size (in pairs): 1084, Positive cache size: 1045, Positive conditional cache size: 0, Positive unconditional cache size: 1045, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 187 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 415 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 6 mSDtfsCounter, 415 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1426occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 3800 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 342 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 18:43:23,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...