/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:57:23,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:57:23,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:57:23,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:57:23,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:57:23,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:57:23,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:57:23,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:57:23,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:57:23,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:57:23,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:57:23,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:57:23,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:57:23,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:57:23,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:57:23,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:57:23,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:57:23,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:57:23,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:57:23,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:57:23,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:57:23,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:57:23,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:57:23,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:57:23,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:57:23,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:57:23,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:57:23,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:57:23,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:57:23,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:57:23,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:57:23,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:57:23,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:57:23,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:57:23,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:57:23,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:57:23,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:57:23,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:57:23,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:57:23,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:57:23,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:57:23,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 00:57:23,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:57:23,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:57:23,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:57:23,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:57:23,947 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:57:23,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:57:23,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:57:23,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:57:23,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:57:23,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:57:23,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:57:23,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:57:23,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:57:23,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:57:23,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:57:23,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:57:23,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:57:23,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:57:23,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:57:23,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:57:23,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:57:23,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:57:23,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:57:23,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:57:23,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:57:23,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:57:23,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:57:23,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:57:23,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 00:57:24,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:57:24,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:57:24,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:57:24,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:57:24,286 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:57:24,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-12-06 00:57:25,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:57:25,766 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:57:25,767 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-12-06 00:57:25,777 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37bb175f7/b3a8f45e590140f286b03c818b1b0ba6/FLAGf0298b07e [2022-12-06 00:57:25,791 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37bb175f7/b3a8f45e590140f286b03c818b1b0ba6 [2022-12-06 00:57:25,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:57:25,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:57:25,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:57:25,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:57:25,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:57:25,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:57:25" (1/1) ... [2022-12-06 00:57:25,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358118e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:25, skipping insertion in model container [2022-12-06 00:57:25,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:57:25" (1/1) ... [2022-12-06 00:57:25,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:57:25,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:57:26,011 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 00:57:26,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,175 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-atomic/read_write_lock-1.i[31246,31259] [2022-12-06 00:57:26,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:57:26,200 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:57:26,224 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 00:57:26,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:57:26,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:57:26,251 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-atomic/read_write_lock-1.i[31246,31259] [2022-12-06 00:57:26,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:57:26,296 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:57:26,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26 WrapperNode [2022-12-06 00:57:26,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:57:26,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:57:26,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:57:26,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:57:26,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,361 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 114 [2022-12-06 00:57:26,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:57:26,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:57:26,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:57:26,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:57:26,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:57:26,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:57:26,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:57:26,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:57:26,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (1/1) ... [2022-12-06 00:57:26,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:57:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:57:26,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 00:57:26,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 00:57:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:57:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:57:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:57:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:57:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-12-06 00:57:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-12-06 00:57:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:57:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:57:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:57:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:57:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:57:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:57:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-12-06 00:57:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-12-06 00:57:26,490 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 00:57:26,633 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:57:26,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:57:26,832 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:57:26,869 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:57:26,870 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 00:57:26,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:57:26 BoogieIcfgContainer [2022-12-06 00:57:26,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:57:26,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:57:26,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:57:26,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:57:26,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:57:25" (1/3) ... [2022-12-06 00:57:26,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6e528a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:57:26, skipping insertion in model container [2022-12-06 00:57:26,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:57:26" (2/3) ... [2022-12-06 00:57:26,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6e528a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:57:26, skipping insertion in model container [2022-12-06 00:57:26,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:57:26" (3/3) ... [2022-12-06 00:57:26,880 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-12-06 00:57:26,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:57:26,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:57:26,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:57:26,977 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 00:57:27,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 248 flow [2022-12-06 00:57:27,058 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-06 00:57:27,058 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 00:57:27,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 104 events. 2/104 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-06 00:57:27,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 108 transitions, 248 flow [2022-12-06 00:57:27,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 91 transitions, 203 flow [2022-12-06 00:57:27,075 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:27,106 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 203 flow [2022-12-06 00:57:27,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 203 flow [2022-12-06 00:57:27,137 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-12-06 00:57:27,137 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:57:27,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 91 events. 2/91 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-06 00:57:27,148 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 203 flow [2022-12-06 00:57:27,148 INFO L188 LiptonReduction]: Number of co-enabled transitions 2408 [2022-12-06 00:57:30,593 INFO L203 LiptonReduction]: Total number of compositions: 64 [2022-12-06 00:57:30,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:57:30,613 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;@492ab82f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:57:30,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 00:57:30,625 INFO L130 PetriNetUnfolder]: 1/23 cut-off events. [2022-12-06 00:57:30,625 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:57:30,625 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:30,626 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:30,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:30,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:30,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1362193144, now seen corresponding path program 1 times [2022-12-06 00:57:30,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:30,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518547641] [2022-12-06 00:57:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:30,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518547641] [2022-12-06 00:57:30,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518547641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:30,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:30,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:57:30,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696343441] [2022-12-06 00:57:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:30,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:57:30,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:31,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:57:31,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:57:31,006 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 41 [2022-12-06 00:57:31,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:31,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:31,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 41 [2022-12-06 00:57:31,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:33,169 INFO L130 PetriNetUnfolder]: 18195/25459 cut-off events. [2022-12-06 00:57:33,169 INFO L131 PetriNetUnfolder]: For 2458/2458 co-relation queries the response was YES. [2022-12-06 00:57:33,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52327 conditions, 25459 events. 18195/25459 cut-off events. For 2458/2458 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 143988 event pairs, 2689 based on Foata normal form. 0/23081 useless extension candidates. Maximal degree in co-relation 41071. Up to 11997 conditions per place. [2022-12-06 00:57:33,359 INFO L137 encePairwiseOnDemand]: 30/41 looper letters, 150 selfloop transitions, 22 changer transitions 3/177 dead transitions. [2022-12-06 00:57:33,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 177 transitions, 791 flow [2022-12-06 00:57:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:57:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:57:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2022-12-06 00:57:33,370 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6128048780487805 [2022-12-06 00:57:33,374 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2022-12-06 00:57:33,375 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:33,375 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 177 transitions, 791 flow [2022-12-06 00:57:33,558 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 177 transitions, 791 flow [2022-12-06 00:57:33,558 INFO L188 LiptonReduction]: Number of co-enabled transitions 486 [2022-12-06 00:57:33,567 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:33,568 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 194 [2022-12-06 00:57:33,568 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 177 transitions, 791 flow [2022-12-06 00:57:33,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:33,569 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:33,569 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:33,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:57:33,569 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1466669212, now seen corresponding path program 1 times [2022-12-06 00:57:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:33,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002300611] [2022-12-06 00:57:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:33,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:33,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002300611] [2022-12-06 00:57:33,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002300611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:33,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:33,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:57:33,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047861640] [2022-12-06 00:57:33,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:33,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 00:57:33,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:33,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 00:57:33,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 00:57:33,673 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2022-12-06 00:57:33,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 177 transitions, 791 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:33,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:33,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2022-12-06 00:57:33,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:35,127 INFO L130 PetriNetUnfolder]: 12191/18092 cut-off events. [2022-12-06 00:57:35,127 INFO L131 PetriNetUnfolder]: For 7323/7323 co-relation queries the response was YES. [2022-12-06 00:57:35,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50627 conditions, 18092 events. 12191/18092 cut-off events. For 7323/7323 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 110793 event pairs, 1243 based on Foata normal form. 1200/17866 useless extension candidates. Maximal degree in co-relation 48228. Up to 8177 conditions per place. [2022-12-06 00:57:35,233 INFO L137 encePairwiseOnDemand]: 33/39 looper letters, 194 selfloop transitions, 26 changer transitions 6/268 dead transitions. [2022-12-06 00:57:35,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 268 transitions, 1679 flow [2022-12-06 00:57:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 00:57:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 00:57:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2022-12-06 00:57:35,238 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7008547008547008 [2022-12-06 00:57:35,239 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 9 predicate places. [2022-12-06 00:57:35,239 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:35,239 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 268 transitions, 1679 flow [2022-12-06 00:57:35,344 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 268 transitions, 1679 flow [2022-12-06 00:57:35,345 INFO L188 LiptonReduction]: Number of co-enabled transitions 706 [2022-12-06 00:57:35,352 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:35,354 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 115 [2022-12-06 00:57:35,354 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 268 transitions, 1679 flow [2022-12-06 00:57:35,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:35,355 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:35,355 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:35,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 00:57:35,356 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:35,357 INFO L85 PathProgramCache]: Analyzing trace with hash -965066460, now seen corresponding path program 2 times [2022-12-06 00:57:35,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:35,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164036735] [2022-12-06 00:57:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:35,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:35,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:35,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164036735] [2022-12-06 00:57:35,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164036735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:35,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:35,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:57:35,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732503668] [2022-12-06 00:57:35,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:35,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:57:35,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:35,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:57:35,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:57:35,449 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2022-12-06 00:57:35,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 268 transitions, 1679 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:35,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:35,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2022-12-06 00:57:35,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:36,108 INFO L130 PetriNetUnfolder]: 3914/6652 cut-off events. [2022-12-06 00:57:36,108 INFO L131 PetriNetUnfolder]: For 7516/7516 co-relation queries the response was YES. [2022-12-06 00:57:36,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23851 conditions, 6652 events. 3914/6652 cut-off events. For 7516/7516 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 42317 event pairs, 233 based on Foata normal form. 848/6900 useless extension candidates. Maximal degree in co-relation 21529. Up to 3396 conditions per place. [2022-12-06 00:57:36,245 INFO L137 encePairwiseOnDemand]: 32/39 looper letters, 192 selfloop transitions, 22 changer transitions 95/346 dead transitions. [2022-12-06 00:57:36,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 346 transitions, 2827 flow [2022-12-06 00:57:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:57:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:57:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2022-12-06 00:57:36,248 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-06 00:57:36,249 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2022-12-06 00:57:36,250 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:36,251 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 346 transitions, 2827 flow [2022-12-06 00:57:36,292 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 346 transitions, 2827 flow [2022-12-06 00:57:36,293 INFO L188 LiptonReduction]: Number of co-enabled transitions 858 [2022-12-06 00:57:36,296 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:36,298 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 49 [2022-12-06 00:57:36,298 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 346 transitions, 2827 flow [2022-12-06 00:57:36,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:36,298 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:36,298 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:36,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:57:36,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:36,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:36,299 INFO L85 PathProgramCache]: Analyzing trace with hash -271481486, now seen corresponding path program 1 times [2022-12-06 00:57:36,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:36,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036632421] [2022-12-06 00:57:36,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:36,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:36,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:36,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036632421] [2022-12-06 00:57:36,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036632421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:36,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:36,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:57:36,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54555352] [2022-12-06 00:57:36,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:36,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:57:36,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:36,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:57:36,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:57:36,397 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 39 [2022-12-06 00:57:36,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 346 transitions, 2827 flow. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:36,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:36,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 39 [2022-12-06 00:57:36,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:37,427 INFO L130 PetriNetUnfolder]: 4187/7179 cut-off events. [2022-12-06 00:57:37,428 INFO L131 PetriNetUnfolder]: For 6680/6680 co-relation queries the response was YES. [2022-12-06 00:57:37,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32810 conditions, 7179 events. 4187/7179 cut-off events. For 6680/6680 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 46349 event pairs, 71 based on Foata normal form. 0/6757 useless extension candidates. Maximal degree in co-relation 29840. Up to 3435 conditions per place. [2022-12-06 00:57:37,466 INFO L137 encePairwiseOnDemand]: 30/39 looper letters, 358 selfloop transitions, 40 changer transitions 206/606 dead transitions. [2022-12-06 00:57:37,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 606 transitions, 6187 flow [2022-12-06 00:57:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:57:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:57:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2022-12-06 00:57:37,468 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2022-12-06 00:57:37,470 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2022-12-06 00:57:37,470 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:37,470 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 606 transitions, 6187 flow [2022-12-06 00:57:37,525 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 606 transitions, 6187 flow [2022-12-06 00:57:37,526 INFO L188 LiptonReduction]: Number of co-enabled transitions 1350 [2022-12-06 00:57:37,534 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:37,542 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 72 [2022-12-06 00:57:37,545 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 606 transitions, 6187 flow [2022-12-06 00:57:37,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:37,545 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:37,545 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:37,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 00:57:37,546 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:37,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:37,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1732111507, now seen corresponding path program 1 times [2022-12-06 00:57:37,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:37,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15913038] [2022-12-06 00:57:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:37,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:37,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:37,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15913038] [2022-12-06 00:57:37,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15913038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:37,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:37,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:57:37,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437981135] [2022-12-06 00:57:37,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:37,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:57:37,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:37,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:57:37,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:57:37,685 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 39 [2022-12-06 00:57:37,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 606 transitions, 6187 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:37,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:37,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 39 [2022-12-06 00:57:37,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:38,710 INFO L130 PetriNetUnfolder]: 4093/7027 cut-off events. [2022-12-06 00:57:38,711 INFO L131 PetriNetUnfolder]: For 6794/6794 co-relation queries the response was YES. [2022-12-06 00:57:38,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39110 conditions, 7027 events. 4093/7027 cut-off events. For 6794/6794 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 45210 event pairs, 71 based on Foata normal form. 0/6663 useless extension candidates. Maximal degree in co-relation 35526. Up to 3424 conditions per place. [2022-12-06 00:57:38,745 INFO L137 encePairwiseOnDemand]: 30/39 looper letters, 411 selfloop transitions, 52 changer transitions 219/684 dead transitions. [2022-12-06 00:57:38,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 684 transitions, 8330 flow [2022-12-06 00:57:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:57:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:57:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2022-12-06 00:57:38,747 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2022-12-06 00:57:38,747 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 26 predicate places. [2022-12-06 00:57:38,748 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:38,748 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 684 transitions, 8330 flow [2022-12-06 00:57:38,797 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 684 transitions, 8330 flow [2022-12-06 00:57:38,797 INFO L188 LiptonReduction]: Number of co-enabled transitions 1538 [2022-12-06 00:57:38,802 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:38,803 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 56 [2022-12-06 00:57:38,803 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 684 transitions, 8330 flow [2022-12-06 00:57:38,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:38,803 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:38,803 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 00:57:38,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:38,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1718301531, now seen corresponding path program 1 times [2022-12-06 00:57:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:38,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721282618] [2022-12-06 00:57:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:38,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:38,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721282618] [2022-12-06 00:57:38,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721282618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:38,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:38,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:57:38,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904626136] [2022-12-06 00:57:38,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:38,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:57:38,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:38,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:57:38,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:57:38,887 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 39 [2022-12-06 00:57:38,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 684 transitions, 8330 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:38,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:38,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 39 [2022-12-06 00:57:38,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:40,080 INFO L130 PetriNetUnfolder]: 3987/6855 cut-off events. [2022-12-06 00:57:40,081 INFO L131 PetriNetUnfolder]: For 7115/7115 co-relation queries the response was YES. [2022-12-06 00:57:40,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44966 conditions, 6855 events. 3987/6855 cut-off events. For 7115/7115 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 43931 event pairs, 71 based on Foata normal form. 0/6557 useless extension candidates. Maximal degree in co-relation 40797. Up to 3412 conditions per place. [2022-12-06 00:57:40,119 INFO L137 encePairwiseOnDemand]: 30/39 looper letters, 451 selfloop transitions, 59 changer transitions 284/796 dead transitions. [2022-12-06 00:57:40,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 796 transitions, 11309 flow [2022-12-06 00:57:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:57:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:57:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2022-12-06 00:57:40,122 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5608974358974359 [2022-12-06 00:57:40,123 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 33 predicate places. [2022-12-06 00:57:40,123 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:40,123 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 796 transitions, 11309 flow [2022-12-06 00:57:40,253 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 796 transitions, 11309 flow [2022-12-06 00:57:40,254 INFO L188 LiptonReduction]: Number of co-enabled transitions 1758 [2022-12-06 00:57:40,257 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:40,258 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 135 [2022-12-06 00:57:40,258 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 796 transitions, 11309 flow [2022-12-06 00:57:40,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:40,258 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:40,258 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:40,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 00:57:40,258 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:40,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash 462740457, now seen corresponding path program 1 times [2022-12-06 00:57:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:40,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820434674] [2022-12-06 00:57:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:40,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:40,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820434674] [2022-12-06 00:57:40,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820434674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:40,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:40,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:57:40,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147483197] [2022-12-06 00:57:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:40,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:57:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:57:40,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:57:40,359 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2022-12-06 00:57:40,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 796 transitions, 11309 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:40,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:40,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2022-12-06 00:57:40,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:41,248 INFO L130 PetriNetUnfolder]: 3865/6795 cut-off events. [2022-12-06 00:57:41,248 INFO L131 PetriNetUnfolder]: For 13676/13676 co-relation queries the response was YES. [2022-12-06 00:57:41,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49562 conditions, 6795 events. 3865/6795 cut-off events. For 13676/13676 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 44833 event pairs, 75 based on Foata normal form. 198/6695 useless extension candidates. Maximal degree in co-relation 44760. Up to 3385 conditions per place. [2022-12-06 00:57:41,279 INFO L137 encePairwiseOnDemand]: 32/39 looper letters, 251 selfloop transitions, 23 changer transitions 522/850 dead transitions. [2022-12-06 00:57:41,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 850 transitions, 13692 flow [2022-12-06 00:57:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:57:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:57:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2022-12-06 00:57:41,281 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-06 00:57:41,282 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 37 predicate places. [2022-12-06 00:57:41,283 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:41,283 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 850 transitions, 13692 flow [2022-12-06 00:57:41,359 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 850 transitions, 13692 flow [2022-12-06 00:57:41,359 INFO L188 LiptonReduction]: Number of co-enabled transitions 1906 [2022-12-06 00:57:41,364 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:57:41,365 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 82 [2022-12-06 00:57:41,365 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 850 transitions, 13692 flow [2022-12-06 00:57:41,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:41,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:57:41,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:57:41,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 00:57:41,366 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 00:57:41,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:57:41,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1787963057, now seen corresponding path program 2 times [2022-12-06 00:57:41,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:57:41,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844581277] [2022-12-06 00:57:41,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:57:41,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:57:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:57:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:57:41,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:57:41,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844581277] [2022-12-06 00:57:41,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844581277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:57:41,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:57:41,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:57:41,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886990626] [2022-12-06 00:57:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:57:41,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 00:57:41,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:57:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 00:57:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-06 00:57:41,484 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2022-12-06 00:57:41,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 850 transitions, 13692 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:41,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:57:41,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2022-12-06 00:57:41,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:57:42,326 INFO L130 PetriNetUnfolder]: 2444/4430 cut-off events. [2022-12-06 00:57:42,326 INFO L131 PetriNetUnfolder]: For 15070/15070 co-relation queries the response was YES. [2022-12-06 00:57:42,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35919 conditions, 4430 events. 2444/4430 cut-off events. For 15070/15070 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 27441 event pairs, 27 based on Foata normal form. 110/4304 useless extension candidates. Maximal degree in co-relation 32424. Up to 2696 conditions per place. [2022-12-06 00:57:42,335 INFO L137 encePairwiseOnDemand]: 30/39 looper letters, 0 selfloop transitions, 0 changer transitions 596/596 dead transitions. [2022-12-06 00:57:42,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 596 transitions, 10743 flow [2022-12-06 00:57:42,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 00:57:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 00:57:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2022-12-06 00:57:42,340 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2022-12-06 00:57:42,341 INFO L294 CegarLoopForPetriNet]: 52 programPoint places, 38 predicate places. [2022-12-06 00:57:42,341 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:57:42,341 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 596 transitions, 10743 flow [2022-12-06 00:57:42,379 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 596 transitions, 10743 flow [2022-12-06 00:57:42,379 INFO L188 LiptonReduction]: Number of co-enabled transitions 1522 [2022-12-06 00:57:42,439 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 00:57:42,440 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 99 [2022-12-06 00:57:42,440 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 596 transitions, 10759 flow [2022-12-06 00:57:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-06 00:57:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-06 00:57:42,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 00:57:42,444 INFO L458 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-12-06 00:57:42,447 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 00:57:42,447 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 00:57:42,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 12:57:42 BasicIcfg [2022-12-06 00:57:42,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 00:57:42,450 INFO L158 Benchmark]: Toolchain (without parser) took 16655.56ms. Allocated memory was 208.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 183.8MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 389.5MB. Max. memory is 8.0GB. [2022-12-06 00:57:42,450 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 208.7MB. Free memory was 185.3MB in the beginning and 185.2MB in the end (delta: 79.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:57:42,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.00ms. Allocated memory is still 208.7MB. Free memory was 183.8MB in the beginning and 162.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 00:57:42,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.39ms. Allocated memory is still 208.7MB. Free memory was 162.8MB in the beginning and 160.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:57:42,451 INFO L158 Benchmark]: Boogie Preprocessor took 36.02ms. Allocated memory is still 208.7MB. Free memory was 160.7MB in the beginning and 159.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:57:42,451 INFO L158 Benchmark]: RCFGBuilder took 470.72ms. Allocated memory is still 208.7MB. Free memory was 159.2MB in the beginning and 142.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-06 00:57:42,452 INFO L158 Benchmark]: TraceAbstraction took 15576.03ms. Allocated memory was 208.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 141.9MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 347.6MB. Max. memory is 8.0GB. [2022-12-06 00:57:42,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 208.7MB. Free memory was 185.3MB in the beginning and 185.2MB in the end (delta: 79.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 499.00ms. Allocated memory is still 208.7MB. Free memory was 183.8MB in the beginning and 162.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.39ms. Allocated memory is still 208.7MB. Free memory was 162.8MB in the beginning and 160.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.02ms. Allocated memory is still 208.7MB. Free memory was 160.7MB in the beginning and 159.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 470.72ms. Allocated memory is still 208.7MB. Free memory was 159.2MB in the beginning and 142.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 15576.03ms. Allocated memory was 208.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 141.9MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 347.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 102 PlacesBefore, 52 PlacesAfterwards, 91 TransitionsBefore, 41 TransitionsAfterwards, 2408 CoEnabledTransitionPairs, 5 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 35 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3173, independent: 2993, independent conditional: 2993, independent unconditional: 0, dependent: 180, dependent conditional: 180, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3173, independent: 2993, independent conditional: 0, independent unconditional: 2993, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3173, independent: 2993, independent conditional: 0, independent unconditional: 2993, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3173, independent: 2993, independent conditional: 0, independent unconditional: 2993, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1731, independent: 1686, independent conditional: 0, independent unconditional: 1686, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1731, independent: 1629, independent conditional: 0, independent unconditional: 1629, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 102, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3173, independent: 1307, independent conditional: 0, independent unconditional: 1307, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 1731, unknown conditional: 0, unknown unconditional: 1731] , Statistics on independence cache: Total cache size (in pairs): 2859, Positive cache size: 2814, Positive conditional cache size: 0, Positive unconditional cache size: 2814, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 59 PlacesBefore, 59 PlacesAfterwards, 177 TransitionsBefore, 177 TransitionsAfterwards, 486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 61 PlacesBefore, 61 PlacesAfterwards, 268 TransitionsBefore, 268 TransitionsAfterwards, 706 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 64 PlacesBefore, 64 PlacesAfterwards, 346 TransitionsBefore, 346 TransitionsAfterwards, 858 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 71 PlacesBefore, 71 PlacesAfterwards, 606 TransitionsBefore, 606 TransitionsAfterwards, 1350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 78 PlacesBefore, 78 PlacesAfterwards, 684 TransitionsBefore, 684 TransitionsAfterwards, 1538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 85 PlacesBefore, 85 PlacesAfterwards, 796 TransitionsBefore, 796 TransitionsAfterwards, 1758 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 89 PlacesBefore, 89 PlacesAfterwards, 850 TransitionsBefore, 850 TransitionsAfterwards, 1906 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 90 PlacesBefore, 90 PlacesAfterwards, 596 TransitionsBefore, 596 TransitionsAfterwards, 1522 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 613 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 613 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1616 IncrementalHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 49 mSDtfsCounter, 1616 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13692occurred in iteration=7, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 00:57:42,475 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...