/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:57:29,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:57:29,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:57:29,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:57:29,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:57:29,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:57:29,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:57:29,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:57:29,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:57:29,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:57:29,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:57:29,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:57:29,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:57:29,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:57:29,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:57:29,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:57:29,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:57:29,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:57:29,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:57:29,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:57:29,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:57:29,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:57:29,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:57:29,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:57:29,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:57:29,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:57:29,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:57:29,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:57:29,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:57:29,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:57:29,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:57:29,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:57:29,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:57:29,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:57:29,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:57:29,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:57:29,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:57:29,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:57:29,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:57:29,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:57:29,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:57:29,836 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:57:29,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:57:29,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:57:29,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:57:29,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:57:29,863 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:57:29,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:57:29,864 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:57:29,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:57:29,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:57:29,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:57:29,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:57:29,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:57:29,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:57:29,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:57:29,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:57:29,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:57:30,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:57:30,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:57:30,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:57:30,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:57:30,188 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:57:30,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2022-12-06 07:57:31,117 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:57:31,358 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:57:31,358 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2022-12-06 07:57:31,368 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac44b903/a3fccec7727f404da264a183abf624e7/FLAG65528a26b [2022-12-06 07:57:31,377 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac44b903/a3fccec7727f404da264a183abf624e7 [2022-12-06 07:57:31,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:57:31,380 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:57:31,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:57:31,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:57:31,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:57:31,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1caee834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31, skipping insertion in model container [2022-12-06 07:57:31,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:57:31,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:57:31,689 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-deagle/circular_buffer_ok.i[30451,30464] [2022-12-06 07:57:31,695 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-deagle/circular_buffer_ok.i[30681,30694] [2022-12-06 07:57:31,699 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-deagle/circular_buffer_ok.i[30979,30992] [2022-12-06 07:57:31,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:57:31,716 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:57:31,750 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-06 07:57:31,765 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-deagle/circular_buffer_ok.i[30681,30694] [2022-12-06 07:57:31,767 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-deagle/circular_buffer_ok.i[30979,30992] [2022-12-06 07:57:31,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:57:31,801 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:57:31,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31 WrapperNode [2022-12-06 07:57:31,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:57:31,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:57:31,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:57:31,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:57:31,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,859 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-12-06 07:57:31,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:57:31,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:57:31,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:57:31,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:57:31,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,890 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:57:31,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:57:31,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:57:31,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:57:31,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (1/1) ... [2022-12-06 07:57:31,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:57:31,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:31,958 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 07:57:31,979 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 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-06 07:57:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-06 07:57:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:57:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:57:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 07:57:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:57:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:57:32,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:57:32,001 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 07:57:32,109 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:57:32,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:57:32,316 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:57:32,321 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:57:32,321 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-06 07:57:32,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:57:32 BoogieIcfgContainer [2022-12-06 07:57:32,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:57:32,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:57:32,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:57:32,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:57:32,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:57:31" (1/3) ... [2022-12-06 07:57:32,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cb4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:57:32, skipping insertion in model container [2022-12-06 07:57:32,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:57:31" (2/3) ... [2022-12-06 07:57:32,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cb4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:57:32, skipping insertion in model container [2022-12-06 07:57:32,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:57:32" (3/3) ... [2022-12-06 07:57:32,328 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-12-06 07:57:32,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:57:32,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 07:57:32,340 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:57:32,404 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 07:57:32,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 148 transitions, 312 flow [2022-12-06 07:57:32,501 INFO L130 PetriNetUnfolder]: 11/146 cut-off events. [2022-12-06 07:57:32,501 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:57:32,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 11/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-06 07:57:32,507 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 148 transitions, 312 flow [2022-12-06 07:57:32,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 137 transitions, 283 flow [2022-12-06 07:57:32,512 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:32,537 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 137 transitions, 283 flow [2022-12-06 07:57:32,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 137 transitions, 283 flow [2022-12-06 07:57:32,581 INFO L130 PetriNetUnfolder]: 11/137 cut-off events. [2022-12-06 07:57:32,581 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 07:57:32,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 137 events. 11/137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 266 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-06 07:57:32,587 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 137 transitions, 283 flow [2022-12-06 07:57:32,588 INFO L188 LiptonReduction]: Number of co-enabled transitions 4498 [2022-12-06 07:57:32,933 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:32,936 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:32,939 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:32,939 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:33,118 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:33,120 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:33,122 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:33,123 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:33,646 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:33,647 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:33,649 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:33,650 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:33,651 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:33,652 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:33,654 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:33,654 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:35,872 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:35,873 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:35,874 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:35,875 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:35,939 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:35,940 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:35,941 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:35,942 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:35,943 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:35,944 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:35,946 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:35,946 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:39,718 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:39,718 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:39,719 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:39,720 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:40,543 INFO L203 LiptonReduction]: Total number of compositions: 113 [2022-12-06 07:57:40,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:57:40,568 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;@58aedaf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:57:40,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-06 07:57:40,572 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-12-06 07:57:40,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:57:40,572 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:40,573 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 07:57:40,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:40,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:40,577 INFO L85 PathProgramCache]: Analyzing trace with hash 18033543, now seen corresponding path program 1 times [2022-12-06 07:57:40,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:40,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823421001] [2022-12-06 07:57:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:40,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:40,749 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 07:57:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:40,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823421001] [2022-12-06 07:57:40,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823421001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:40,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:40,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 07:57:40,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664007838] [2022-12-06 07:57:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:40,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 07:57:40,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:40,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 07:57:40,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 07:57:40,770 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-06 07:57:40,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 07:57:40,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:40,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-06 07:57:40,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:40,851 INFO L130 PetriNetUnfolder]: 396/651 cut-off events. [2022-12-06 07:57:40,852 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-06 07:57:40,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 651 events. 396/651 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2617 event pairs, 267 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 1165. Up to 591 conditions per place. [2022-12-06 07:57:40,857 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 29 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2022-12-06 07:57:40,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 139 flow [2022-12-06 07:57:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 07:57:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 07:57:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 49 transitions. [2022-12-06 07:57:40,865 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 07:57:40,866 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 93 flow. Second operand 2 states and 49 transitions. [2022-12-06 07:57:40,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 139 flow [2022-12-06 07:57:40,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 07:57:40,869 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 76 flow [2022-12-06 07:57:40,870 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2022-12-06 07:57:40,872 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2022-12-06 07:57:40,873 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:40,873 INFO L89 Accepts]: Start accepts. Operand has 34 places, 36 transitions, 76 flow [2022-12-06 07:57:40,875 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:40,875 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:40,875 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 36 transitions, 76 flow [2022-12-06 07:57:40,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 36 transitions, 76 flow [2022-12-06 07:57:40,879 INFO L130 PetriNetUnfolder]: 7/36 cut-off events. [2022-12-06 07:57:40,879 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:57:40,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 7/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 81 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-06 07:57:40,880 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 36 transitions, 76 flow [2022-12-06 07:57:40,880 INFO L188 LiptonReduction]: Number of co-enabled transitions 594 [2022-12-06 07:57:45,387 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:57:45,389 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4516 [2022-12-06 07:57:45,389 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 76 flow [2022-12-06 07:57:45,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 07:57:45,389 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:45,389 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 07:57:45,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:57:45,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:45,390 INFO L85 PathProgramCache]: Analyzing trace with hash 150281689, now seen corresponding path program 1 times [2022-12-06 07:57:45,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:45,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255176915] [2022-12-06 07:57:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:45,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:45,570 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 07:57:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:45,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255176915] [2022-12-06 07:57:45,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255176915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:45,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:45,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 07:57:45,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952041894] [2022-12-06 07:57:45,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:45,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:57:45,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:45,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:57:45,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:57:45,572 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 36 [2022-12-06 07:57:45,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 07:57:45,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:45,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 36 [2022-12-06 07:57:45,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:45,688 INFO L130 PetriNetUnfolder]: 551/966 cut-off events. [2022-12-06 07:57:45,688 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 07:57:45,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1848 conditions, 966 events. 551/966 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4236 event pairs, 173 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1200. Up to 522 conditions per place. [2022-12-06 07:57:45,695 INFO L137 encePairwiseOnDemand]: 32/36 looper letters, 47 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2022-12-06 07:57:45,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 56 transitions, 217 flow [2022-12-06 07:57:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:57:45,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:57:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2022-12-06 07:57:45,698 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-06 07:57:45,698 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 76 flow. Second operand 3 states and 72 transitions. [2022-12-06 07:57:45,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 56 transitions, 217 flow [2022-12-06 07:57:45,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 07:57:45,701 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 90 flow [2022-12-06 07:57:45,701 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2022-12-06 07:57:45,702 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2022-12-06 07:57:45,702 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:45,702 INFO L89 Accepts]: Start accepts. Operand has 36 places, 37 transitions, 90 flow [2022-12-06 07:57:45,702 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:45,702 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:45,702 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 37 transitions, 90 flow [2022-12-06 07:57:45,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 37 transitions, 90 flow [2022-12-06 07:57:45,707 INFO L130 PetriNetUnfolder]: 12/59 cut-off events. [2022-12-06 07:57:45,708 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:57:45,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 59 events. 12/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2022-12-06 07:57:45,709 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 37 transitions, 90 flow [2022-12-06 07:57:45,709 INFO L188 LiptonReduction]: Number of co-enabled transitions 614 [2022-12-06 07:57:45,723 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:57:45,727 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 25 [2022-12-06 07:57:45,727 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 90 flow [2022-12-06 07:57:45,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 07:57:45,727 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:45,727 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:45,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:57:45,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:45,728 INFO L85 PathProgramCache]: Analyzing trace with hash 363753715, now seen corresponding path program 1 times [2022-12-06 07:57:45,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:45,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837384539] [2022-12-06 07:57:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:45,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:45,745 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:57:45,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698582793] [2022-12-06 07:57:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:45,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:45,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:45,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:57:45,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 07:57:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:45,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-06 07:57:45,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:57:45,864 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 07:57:45,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:57:45,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837384539] [2022-12-06 07:57:45,865 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:57:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698582793] [2022-12-06 07:57:45,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698582793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:45,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:45,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:57:45,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279382489] [2022-12-06 07:57:45,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:45,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:57:45,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:45,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:57:45,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:57:45,867 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 36 [2022-12-06 07:57:45,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 07:57:45,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:45,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 36 [2022-12-06 07:57:45,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:46,015 INFO L130 PetriNetUnfolder]: 766/1284 cut-off events. [2022-12-06 07:57:46,015 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-12-06 07:57:46,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 1284 events. 766/1284 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5821 event pairs, 319 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1814. Up to 689 conditions per place. [2022-12-06 07:57:46,020 INFO L137 encePairwiseOnDemand]: 30/36 looper letters, 59 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2022-12-06 07:57:46,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 70 transitions, 294 flow [2022-12-06 07:57:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:57:46,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:57:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2022-12-06 07:57:46,021 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5902777777777778 [2022-12-06 07:57:46,021 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 90 flow. Second operand 4 states and 85 transitions. [2022-12-06 07:57:46,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 70 transitions, 294 flow [2022-12-06 07:57:46,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 70 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:57:46,023 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 119 flow [2022-12-06 07:57:46,023 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2022-12-06 07:57:46,023 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2022-12-06 07:57:46,024 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:46,024 INFO L89 Accepts]: Start accepts. Operand has 40 places, 39 transitions, 119 flow [2022-12-06 07:57:46,024 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:46,024 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:46,024 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 39 transitions, 119 flow [2022-12-06 07:57:46,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 39 transitions, 119 flow [2022-12-06 07:57:46,029 INFO L130 PetriNetUnfolder]: 16/77 cut-off events. [2022-12-06 07:57:46,029 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-06 07:57:46,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 77 events. 16/77 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 185 event pairs, 1 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 100. Up to 10 conditions per place. [2022-12-06 07:57:46,030 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 39 transitions, 119 flow [2022-12-06 07:57:46,030 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 07:57:46,040 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:57:46,041 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-06 07:57:46,041 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 119 flow [2022-12-06 07:57:46,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 07:57:46,041 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:46,041 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:46,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 07:57:46,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:46,247 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1695831485, now seen corresponding path program 1 times [2022-12-06 07:57:46,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:46,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686965474] [2022-12-06 07:57:46,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:46,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:46,324 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 07:57:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:46,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686965474] [2022-12-06 07:57:46,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686965474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:46,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:46,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 07:57:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803959703] [2022-12-06 07:57:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:46,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:57:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:46,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:57:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:57:46,325 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 36 [2022-12-06 07:57:46,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:57:46,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:46,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 36 [2022-12-06 07:57:46,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:46,439 INFO L130 PetriNetUnfolder]: 791/1353 cut-off events. [2022-12-06 07:57:46,439 INFO L131 PetriNetUnfolder]: For 542/542 co-relation queries the response was YES. [2022-12-06 07:57:46,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 1353 events. 791/1353 cut-off events. For 542/542 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5770 event pairs, 307 based on Foata normal form. 58/1135 useless extension candidates. Maximal degree in co-relation 2642. Up to 741 conditions per place. [2022-12-06 07:57:46,444 INFO L137 encePairwiseOnDemand]: 30/36 looper letters, 50 selfloop transitions, 3 changer transitions 3/61 dead transitions. [2022-12-06 07:57:46,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 61 transitions, 305 flow [2022-12-06 07:57:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:57:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:57:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-12-06 07:57:46,445 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-12-06 07:57:46,445 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 119 flow. Second operand 3 states and 69 transitions. [2022-12-06 07:57:46,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 61 transitions, 305 flow [2022-12-06 07:57:46,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 61 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:57:46,448 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 135 flow [2022-12-06 07:57:46,448 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2022-12-06 07:57:46,453 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2022-12-06 07:57:46,454 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:46,454 INFO L89 Accepts]: Start accepts. Operand has 42 places, 40 transitions, 135 flow [2022-12-06 07:57:46,454 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:46,454 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:46,454 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 40 transitions, 135 flow [2022-12-06 07:57:46,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions, 135 flow [2022-12-06 07:57:46,461 INFO L130 PetriNetUnfolder]: 24/111 cut-off events. [2022-12-06 07:57:46,461 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-06 07:57:46,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 111 events. 24/111 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 330 event pairs, 2 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 172. Up to 19 conditions per place. [2022-12-06 07:57:46,462 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 40 transitions, 135 flow [2022-12-06 07:57:46,462 INFO L188 LiptonReduction]: Number of co-enabled transitions 674 [2022-12-06 07:57:46,463 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:57:46,463 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-06 07:57:46,463 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 135 flow [2022-12-06 07:57:46,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:57:46,464 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:46,464 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:46,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 07:57:46,464 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1271987838, now seen corresponding path program 1 times [2022-12-06 07:57:46,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:46,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027482494] [2022-12-06 07:57:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:46,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:46,473 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:57:46,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824619125] [2022-12-06 07:57:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:46,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:46,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:46,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:57:46,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 07:57:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:46,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-06 07:57:46,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:57:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:57:46,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:57:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:46,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027482494] [2022-12-06 07:57:46,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:57:46,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824619125] [2022-12-06 07:57:46,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824619125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:46,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:46,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 07:57:46,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679258757] [2022-12-06 07:57:46,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:46,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:57:46,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:57:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:57:46,583 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 36 [2022-12-06 07:57:46,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 07:57:46,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:46,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 36 [2022-12-06 07:57:46,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:46,661 INFO L130 PetriNetUnfolder]: 567/1043 cut-off events. [2022-12-06 07:57:46,662 INFO L131 PetriNetUnfolder]: For 414/414 co-relation queries the response was YES. [2022-12-06 07:57:46,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2389 conditions, 1043 events. 567/1043 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4592 event pairs, 411 based on Foata normal form. 30/839 useless extension candidates. Maximal degree in co-relation 1900. Up to 892 conditions per place. [2022-12-06 07:57:46,665 INFO L137 encePairwiseOnDemand]: 34/36 looper letters, 27 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2022-12-06 07:57:46,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 177 flow [2022-12-06 07:57:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:57:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:57:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2022-12-06 07:57:46,667 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2022-12-06 07:57:46,667 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 135 flow. Second operand 3 states and 49 transitions. [2022-12-06 07:57:46,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 177 flow [2022-12-06 07:57:46,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 166 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-06 07:57:46,668 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 106 flow [2022-12-06 07:57:46,668 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2022-12-06 07:57:46,669 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2022-12-06 07:57:46,669 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:46,669 INFO L89 Accepts]: Start accepts. Operand has 40 places, 36 transitions, 106 flow [2022-12-06 07:57:46,670 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:46,670 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:46,670 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 36 transitions, 106 flow [2022-12-06 07:57:46,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 36 transitions, 106 flow [2022-12-06 07:57:46,675 INFO L130 PetriNetUnfolder]: 16/86 cut-off events. [2022-12-06 07:57:46,675 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 07:57:46,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 86 events. 16/86 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 194 event pairs, 1 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 120. Up to 14 conditions per place. [2022-12-06 07:57:46,676 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 36 transitions, 106 flow [2022-12-06 07:57:46,676 INFO L188 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-06 07:57:46,680 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:57:46,680 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-06 07:57:46,681 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 106 flow [2022-12-06 07:57:46,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 07:57:46,681 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:46,681 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:46,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 07:57:46,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:46,886 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:46,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:46,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1958050886, now seen corresponding path program 1 times [2022-12-06 07:57:46,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:46,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405226584] [2022-12-06 07:57:46,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:46,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:46,897 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:57:46,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720426290] [2022-12-06 07:57:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:46,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:46,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:46,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:57:46,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 07:57:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:46,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 07:57:46,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:57:46,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 07:57:46,991 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 07:57:46,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:57:46,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:46,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405226584] [2022-12-06 07:57:46,992 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:57:46,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720426290] [2022-12-06 07:57:46,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720426290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:46,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:46,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:57:46,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211101923] [2022-12-06 07:57:46,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:46,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:57:46,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:46,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:57:46,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:57:46,993 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2022-12-06 07:57:46,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:57:46,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:46,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2022-12-06 07:57:46,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:47,087 INFO L130 PetriNetUnfolder]: 284/569 cut-off events. [2022-12-06 07:57:47,087 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-06 07:57:47,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 569 events. 284/569 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2388 event pairs, 58 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 1203. Up to 340 conditions per place. [2022-12-06 07:57:47,089 INFO L137 encePairwiseOnDemand]: 27/33 looper letters, 28 selfloop transitions, 7 changer transitions 2/45 dead transitions. [2022-12-06 07:57:47,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 201 flow [2022-12-06 07:57:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:57:47,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:57:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2022-12-06 07:57:47,090 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2022-12-06 07:57:47,090 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 106 flow. Second operand 3 states and 60 transitions. [2022-12-06 07:57:47,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 201 flow [2022-12-06 07:57:47,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:57:47,091 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 117 flow [2022-12-06 07:57:47,091 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2022-12-06 07:57:47,092 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-06 07:57:47,092 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:47,092 INFO L89 Accepts]: Start accepts. Operand has 41 places, 35 transitions, 117 flow [2022-12-06 07:57:47,092 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:47,092 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:47,093 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 35 transitions, 117 flow [2022-12-06 07:57:47,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 35 transitions, 117 flow [2022-12-06 07:57:47,097 INFO L130 PetriNetUnfolder]: 12/77 cut-off events. [2022-12-06 07:57:47,097 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 07:57:47,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 77 events. 12/77 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 182 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 126. Up to 16 conditions per place. [2022-12-06 07:57:47,098 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 35 transitions, 117 flow [2022-12-06 07:57:47,098 INFO L188 LiptonReduction]: Number of co-enabled transitions 304 [2022-12-06 07:57:47,131 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:47,132 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:47,134 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:47,135 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:47,137 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:47,138 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:47,140 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:57:47,140 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:57:49,980 INFO L203 LiptonReduction]: Total number of compositions: 9 [2022-12-06 07:57:49,981 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2889 [2022-12-06 07:57:49,981 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 115 flow [2022-12-06 07:57:49,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:57:49,981 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:49,981 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:49,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-06 07:57:50,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:50,182 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash -271477068, now seen corresponding path program 1 times [2022-12-06 07:57:50,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:50,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354793957] [2022-12-06 07:57:50,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:50,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:50,193 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:57:50,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187977646] [2022-12-06 07:57:50,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:50,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:50,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:50,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:57:50,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 07:57:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:50,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 07:57:50,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:57:50,485 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 07:57:50,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:57:50,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:50,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354793957] [2022-12-06 07:57:50,486 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:57:50,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187977646] [2022-12-06 07:57:50,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187977646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:50,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:50,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:57:50,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619689811] [2022-12-06 07:57:50,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:50,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:57:50,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:50,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:57:50,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:57:50,487 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 29 [2022-12-06 07:57:50,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 07:57:50,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:50,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 29 [2022-12-06 07:57:50,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:50,590 INFO L130 PetriNetUnfolder]: 339/650 cut-off events. [2022-12-06 07:57:50,590 INFO L131 PetriNetUnfolder]: For 254/254 co-relation queries the response was YES. [2022-12-06 07:57:50,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1652 conditions, 650 events. 339/650 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2904 event pairs, 84 based on Foata normal form. 6/602 useless extension candidates. Maximal degree in co-relation 1641. Up to 302 conditions per place. [2022-12-06 07:57:50,592 INFO L137 encePairwiseOnDemand]: 24/29 looper letters, 45 selfloop transitions, 4 changer transitions 9/62 dead transitions. [2022-12-06 07:57:50,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 62 transitions, 343 flow [2022-12-06 07:57:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:57:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:57:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2022-12-06 07:57:50,593 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6293103448275862 [2022-12-06 07:57:50,593 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 115 flow. Second operand 4 states and 73 transitions. [2022-12-06 07:57:50,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 62 transitions, 343 flow [2022-12-06 07:57:50,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 62 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:57:50,595 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 131 flow [2022-12-06 07:57:50,595 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2022-12-06 07:57:50,596 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2022-12-06 07:57:50,596 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:50,596 INFO L89 Accepts]: Start accepts. Operand has 38 places, 31 transitions, 131 flow [2022-12-06 07:57:50,596 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:50,596 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:50,596 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 31 transitions, 131 flow [2022-12-06 07:57:50,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 131 flow [2022-12-06 07:57:50,602 INFO L130 PetriNetUnfolder]: 19/84 cut-off events. [2022-12-06 07:57:50,602 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-12-06 07:57:50,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 84 events. 19/84 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 271 event pairs, 1 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 152. Up to 15 conditions per place. [2022-12-06 07:57:50,603 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 31 transitions, 131 flow [2022-12-06 07:57:50,603 INFO L188 LiptonReduction]: Number of co-enabled transitions 260 [2022-12-06 07:57:50,876 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:57:50,877 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 281 [2022-12-06 07:57:50,877 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 130 flow [2022-12-06 07:57:50,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 07:57:50,877 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:50,877 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:50,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 07:57:51,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:51,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:51,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:51,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1321425296, now seen corresponding path program 1 times [2022-12-06 07:57:51,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:51,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944114100] [2022-12-06 07:57:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:51,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:51,091 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:57:51,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079932079] [2022-12-06 07:57:51,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:51,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:51,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:51,093 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:57:51,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 07:57:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:51,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-06 07:57:51,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:57:51,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:57:51,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-12-06 07:57:51,350 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-06 07:57:51,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-06 07:57:51,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-06 07:57:51,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-06 07:57:51,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-12-06 07:57:51,574 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 07:57:51,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:57:51,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944114100] [2022-12-06 07:57:51,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:57:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079932079] [2022-12-06 07:57:51,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079932079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:51,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:51,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 07:57:51,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815350100] [2022-12-06 07:57:51,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:51,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 07:57:51,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 07:57:51,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-06 07:57:51,576 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 28 [2022-12-06 07:57:51,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 130 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 07:57:51,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:51,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 28 [2022-12-06 07:57:51,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:51,801 INFO L130 PetriNetUnfolder]: 513/922 cut-off events. [2022-12-06 07:57:51,801 INFO L131 PetriNetUnfolder]: For 650/650 co-relation queries the response was YES. [2022-12-06 07:57:51,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2365 conditions, 922 events. 513/922 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4306 event pairs, 130 based on Foata normal form. 8/836 useless extension candidates. Maximal degree in co-relation 2351. Up to 481 conditions per place. [2022-12-06 07:57:51,804 INFO L137 encePairwiseOnDemand]: 18/28 looper letters, 40 selfloop transitions, 9 changer transitions 12/64 dead transitions. [2022-12-06 07:57:51,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 64 transitions, 370 flow [2022-12-06 07:57:51,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:57:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:57:51,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2022-12-06 07:57:51,806 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-12-06 07:57:51,806 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 130 flow. Second operand 5 states and 75 transitions. [2022-12-06 07:57:51,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 64 transitions, 370 flow [2022-12-06 07:57:51,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 64 transitions, 354 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-06 07:57:51,809 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 212 flow [2022-12-06 07:57:51,810 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2022-12-06 07:57:51,812 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-06 07:57:51,812 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:51,812 INFO L89 Accepts]: Start accepts. Operand has 41 places, 37 transitions, 212 flow [2022-12-06 07:57:51,812 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:51,812 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:51,813 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 37 transitions, 212 flow [2022-12-06 07:57:51,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 212 flow [2022-12-06 07:57:51,822 INFO L130 PetriNetUnfolder]: 33/128 cut-off events. [2022-12-06 07:57:51,822 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-12-06 07:57:51,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 128 events. 33/128 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 534 event pairs, 2 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 289. Up to 30 conditions per place. [2022-12-06 07:57:51,823 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 37 transitions, 212 flow [2022-12-06 07:57:51,823 INFO L188 LiptonReduction]: Number of co-enabled transitions 328 [2022-12-06 07:57:52,428 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:57:52,428 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 616 [2022-12-06 07:57:52,428 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 208 flow [2022-12-06 07:57:52,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 07:57:52,429 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:57:52,429 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:57:52,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-06 07:57:52,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:52,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 07:57:52,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:57:52,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1800658047, now seen corresponding path program 1 times [2022-12-06 07:57:52,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:57:52,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787494790] [2022-12-06 07:57:52,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:52,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:57:52,644 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:57:52,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548658259] [2022-12-06 07:57:52,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:57:52,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:57:52,646 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:57:52,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 07:57:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:57:52,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-06 07:57:52,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:57:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:57:52,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:57:52,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:57:52,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787494790] [2022-12-06 07:57:52,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:57:52,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548658259] [2022-12-06 07:57:52,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548658259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:57:52,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:57:52,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:57:52,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294283054] [2022-12-06 07:57:52,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:57:52,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:57:52,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:57:52,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:57:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:57:52,750 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 29 [2022-12-06 07:57:52,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 07:57:52,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:57:52,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 29 [2022-12-06 07:57:52,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:57:52,853 INFO L130 PetriNetUnfolder]: 270/527 cut-off events. [2022-12-06 07:57:52,853 INFO L131 PetriNetUnfolder]: For 570/570 co-relation queries the response was YES. [2022-12-06 07:57:52,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 527 events. 270/527 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2009 event pairs, 40 based on Foata normal form. 28/555 useless extension candidates. Maximal degree in co-relation 1437. Up to 342 conditions per place. [2022-12-06 07:57:52,855 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 26 selfloop transitions, 3 changer transitions 7/40 dead transitions. [2022-12-06 07:57:52,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 264 flow [2022-12-06 07:57:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:57:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:57:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2022-12-06 07:57:52,856 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5632183908045977 [2022-12-06 07:57:52,857 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 208 flow. Second operand 3 states and 49 transitions. [2022-12-06 07:57:52,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 264 flow [2022-12-06 07:57:52,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 250 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-06 07:57:52,859 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 157 flow [2022-12-06 07:57:52,859 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2022-12-06 07:57:52,860 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2022-12-06 07:57:52,860 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:57:52,860 INFO L89 Accepts]: Start accepts. Operand has 40 places, 28 transitions, 157 flow [2022-12-06 07:57:52,860 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:57:52,861 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:57:52,861 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 157 flow [2022-12-06 07:57:52,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 28 transitions, 157 flow [2022-12-06 07:57:52,866 INFO L130 PetriNetUnfolder]: 11/49 cut-off events. [2022-12-06 07:57:52,866 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-12-06 07:57:52,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 49 events. 11/49 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 117. Up to 15 conditions per place. [2022-12-06 07:57:52,867 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 28 transitions, 157 flow [2022-12-06 07:57:52,867 INFO L188 LiptonReduction]: Number of co-enabled transitions 186 [2022-12-06 07:57:52,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 07:57:53,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:57:53,100 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IndexOutOfBoundsException: Index 15 out of bounds for length 15 at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64) at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70) at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248) at java.base/java.util.Objects.checkIndex(Objects.java:372) at java.base/java.util.ArrayList.get(ArrayList.java:459) at de.uni_freiburg.informatik.ultimate.automata.petrinet.PetriNetRun.getTransition(PetriNetRun.java:125) at de.uni_freiburg.informatik.ultimate.automata.partialorder.ChoiceRule.adaptRun(ChoiceRule.java:163) at de.uni_freiburg.informatik.ultimate.automata.partialorder.ChoiceRule.applyInternal(ChoiceRule.java:115) at de.uni_freiburg.informatik.ultimate.automata.partialorder.ReductionRule.apply(ReductionRule.java:80) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.choiceRuleWrapper(LiptonReduction.java:239) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.performReduction(LiptonReduction.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:143) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 07:57:53,103 INFO L158 Benchmark]: Toolchain (without parser) took 21723.53ms. Allocated memory was 210.8MB in the beginning and 398.5MB in the end (delta: 187.7MB). Free memory was 184.9MB in the beginning and 343.2MB in the end (delta: -158.2MB). Peak memory consumption was 30.5MB. Max. memory is 8.0GB. [2022-12-06 07:57:53,103 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 186.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:57:53,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.98ms. Allocated memory is still 210.8MB. Free memory was 184.9MB in the beginning and 164.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 07:57:53,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.02ms. Allocated memory is still 210.8MB. Free memory was 164.0MB in the beginning and 161.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:57:53,105 INFO L158 Benchmark]: Boogie Preprocessor took 32.26ms. Allocated memory is still 210.8MB. Free memory was 161.9MB in the beginning and 159.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:57:53,105 INFO L158 Benchmark]: RCFGBuilder took 429.88ms. Allocated memory is still 210.8MB. Free memory was 159.8MB in the beginning and 141.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 07:57:53,105 INFO L158 Benchmark]: TraceAbstraction took 20778.52ms. Allocated memory was 210.8MB in the beginning and 398.5MB in the end (delta: 187.7MB). Free memory was 140.9MB in the beginning and 343.2MB in the end (delta: -202.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:57:53,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 186.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 420.98ms. Allocated memory is still 210.8MB. Free memory was 184.9MB in the beginning and 164.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.02ms. Allocated memory is still 210.8MB. Free memory was 164.0MB in the beginning and 161.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.26ms. Allocated memory is still 210.8MB. Free memory was 161.9MB in the beginning and 159.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 429.88ms. Allocated memory is still 210.8MB. Free memory was 159.8MB in the beginning and 141.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 20778.52ms. Allocated memory was 210.8MB in the beginning and 398.5MB in the end (delta: 187.7MB). Free memory was 140.9MB in the beginning and 343.2MB in the end (delta: -202.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 133 PlacesBefore, 40 PlacesAfterwards, 137 TransitionsBefore, 42 TransitionsAfterwards, 4498 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 42 TrivialYvCompositions, 60 ConcurrentYvCompositions, 3 ChoiceCompositions, 113 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 4051, independent unconditional: 0, dependent: 110, dependent conditional: 110, dependent unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 0, independent unconditional: 4051, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 0, independent unconditional: 4051, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 0, independent unconditional: 4051, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3063, independent: 3020, independent conditional: 0, independent unconditional: 3020, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3063, independent: 2942, independent conditional: 0, independent unconditional: 2942, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 121, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2289, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 2119, unknown conditional: 0, unknown unconditional: 2119] ], Cache Queries: [ total: 4166, independent: 1031, independent conditional: 0, independent unconditional: 1031, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 3067, unknown conditional: 0, unknown unconditional: 3067] , Statistics on independence cache: Total cache size (in pairs): 5688, Positive cache size: 5646, Positive conditional cache size: 0, Positive unconditional cache size: 5646, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 33 PlacesBefore, 33 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 594 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 268, independent: 236, independent conditional: 236, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 268, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 268, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 268, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 195, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 195, independent: 161, independent conditional: 0, independent unconditional: 161, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4504, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 4318, unknown conditional: 0, unknown unconditional: 4318] ], Cache Queries: [ total: 268, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 195, unknown conditional: 0, unknown unconditional: 195] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 175, Positive conditional cache size: 0, Positive unconditional cache size: 175, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 614 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178, independent: 155, independent conditional: 155, independent unconditional: 0, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 178, independent: 155, independent conditional: 5, independent unconditional: 150, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 178, independent: 155, independent conditional: 5, independent unconditional: 150, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 178, independent: 155, independent conditional: 5, independent unconditional: 150, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 5, independent conditional: 2, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 178, independent: 124, independent conditional: 3, independent unconditional: 121, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , Statistics on independence cache: Total cache size (in pairs): 227, Positive cache size: 206, Positive conditional cache size: 2, Positive unconditional cache size: 204, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 40 PlacesBefore, 40 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 197, independent: 175, independent conditional: 175, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 197, independent: 175, independent conditional: 65, independent unconditional: 110, dependent: 22, dependent conditional: 10, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 197, independent: 175, independent conditional: 65, independent unconditional: 110, dependent: 22, dependent conditional: 10, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 197, independent: 175, independent conditional: 65, independent unconditional: 110, dependent: 22, dependent conditional: 10, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 197, independent: 171, independent conditional: 63, independent unconditional: 108, dependent: 16, dependent conditional: 4, dependent unconditional: 12, unknown: 10, unknown conditional: 8, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 237, Positive cache size: 210, Positive conditional cache size: 4, Positive unconditional cache size: 206, Negative cache size: 27, Negative conditional cache size: 6, Negative unconditional cache size: 21, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 674 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, independent: 36, independent conditional: 36, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 45, independent: 36, independent conditional: 2, independent unconditional: 34, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45, independent: 36, independent conditional: 2, independent unconditional: 34, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45, independent: 36, independent conditional: 2, independent unconditional: 34, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 45, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 215, Positive conditional cache size: 4, Positive unconditional cache size: 211, Negative cache size: 27, Negative conditional cache size: 6, Negative unconditional cache size: 21, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 40 PlacesBefore, 40 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 49, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 49, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 49, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 49, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 244, Positive cache size: 216, Positive conditional cache size: 4, Positive unconditional cache size: 212, Negative cache size: 28, Negative conditional cache size: 6, Negative unconditional cache size: 22, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 40 PlacesBefore, 35 PlacesAfterwards, 35 TransitionsBefore, 30 TransitionsAfterwards, 304 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, independent: 58, independent conditional: 58, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 59, independent: 58, independent conditional: 12, independent unconditional: 46, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 59, independent: 58, independent conditional: 12, independent unconditional: 46, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 59, independent: 58, independent conditional: 12, independent unconditional: 46, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 12, independent conditional: 2, independent unconditional: 10, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2145, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2145, unknown conditional: 0, unknown unconditional: 2145] ], Cache Queries: [ total: 59, independent: 46, independent conditional: 10, independent unconditional: 36, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 13, unknown conditional: 2, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 322, Positive cache size: 294, Positive conditional cache size: 6, Positive unconditional cache size: 288, Negative cache size: 28, Negative conditional cache size: 6, Negative unconditional cache size: 22, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 37 PlacesBefore, 36 PlacesAfterwards, 31 TransitionsBefore, 30 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, independent: 14, independent conditional: 14, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 15, independent: 14, independent conditional: 6, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15, independent: 14, independent conditional: 6, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15, independent: 14, independent conditional: 6, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 15, independent: 11, independent conditional: 6, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 331, Positive cache size: 303, Positive conditional cache size: 6, Positive unconditional cache size: 297, Negative cache size: 28, Negative conditional cache size: 6, Negative unconditional cache size: 22, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6s, 41 PlacesBefore, 39 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 328 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7, unknown conditional: 6, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 346, Positive cache size: 316, Positive conditional cache size: 11, Positive unconditional cache size: 305, Negative cache size: 30, Negative conditional cache size: 7, Negative unconditional cache size: 23, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0 - ExceptionOrErrorResult: IndexOutOfBoundsException: Index 15 out of bounds for length 15 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IndexOutOfBoundsException: Index 15 out of bounds for length 15: java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 07:57:53,198 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...