/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-wmm/mix005.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 02:58:48,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 02:58:48,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 02:58:48,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 02:58:48,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 02:58:48,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 02:58:48,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 02:58:48,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 02:58:48,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 02:58:48,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 02:58:48,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 02:58:48,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 02:58:48,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 02:58:48,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 02:58:48,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 02:58:48,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 02:58:48,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 02:58:48,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 02:58:48,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 02:58:48,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 02:58:48,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 02:58:48,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 02:58:48,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 02:58:48,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 02:58:48,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 02:58:48,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 02:58:48,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 02:58:48,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 02:58:48,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 02:58:48,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 02:58:48,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 02:58:48,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 02:58:48,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 02:58:48,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 02:58:48,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 02:58:48,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 02:58:48,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 02:58:48,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 02:58:48,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 02:58:48,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 02:58:48,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 02:58:48,947 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 [2022-12-13 02:58:48,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 02:58:48,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 02:58:48,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 02:58:48,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 02:58:48,975 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 02:58:48,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 02:58:48,976 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 02:58:48,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 02:58:48,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 02:58:48,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 02:58:48,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 02:58:48,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 02:58:48,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 02:58:48,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:58:48,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 02:58:48,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 02:58:48,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 02:58:48,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 02:58:48,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 02:58:48,978 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 02:58:48,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 02:58:49,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 02:58:49,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 02:58:49,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 02:58:49,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 02:58:49,307 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 02:58:49,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix005.opt.i [2022-12-13 02:58:50,339 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 02:58:50,640 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 02:58:50,641 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005.opt.i [2022-12-13 02:58:50,666 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52da4c0b/21cf4b8bb75b4396911b86d38433a725/FLAG57f614877 [2022-12-13 02:58:50,679 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52da4c0b/21cf4b8bb75b4396911b86d38433a725 [2022-12-13 02:58:50,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 02:58:50,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 02:58:50,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 02:58:50,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 02:58:50,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 02:58:50,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:58:50" (1/1) ... [2022-12-13 02:58:50,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269b2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:50, skipping insertion in model container [2022-12-13 02:58:50,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:58:50" (1/1) ... [2022-12-13 02:58:50,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 02:58:50,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 02:58:50,844 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005.opt.i[944,957] [2022-12-13 02:58:50,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:50,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:50,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:58:51,055 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 02:58:51,064 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005.opt.i[944,957] [2022-12-13 02:58:51,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:58:51,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:58:51,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:58:51,160 INFO L208 MainTranslator]: Completed translation [2022-12-13 02:58:51,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51 WrapperNode [2022-12-13 02:58:51,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 02:58:51,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 02:58:51,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 02:58:51,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 02:58:51,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,222 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-12-13 02:58:51,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 02:58:51,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 02:58:51,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 02:58:51,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 02:58:51,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 02:58:51,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 02:58:51,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 02:58:51,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 02:58:51,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (1/1) ... [2022-12-13 02:58:51,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:58:51,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:58:51,280 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) [2022-12-13 02:58:51,294 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 [2022-12-13 02:58:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 02:58:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 02:58:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 02:58:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 02:58:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 02:58:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 02:58:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 02:58:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 02:58:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 02:58:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 02:58:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 02:58:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 02:58:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 02:58:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 02:58:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 02:58:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 02:58:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 02:58:51,323 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 02:58:51,450 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 02:58:51,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 02:58:51,722 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 02:58:51,834 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 02:58:51,835 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 02:58:51,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:58:51 BoogieIcfgContainer [2022-12-13 02:58:51,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 02:58:51,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 02:58:51,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 02:58:51,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 02:58:51,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:58:50" (1/3) ... [2022-12-13 02:58:51,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dbbde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:58:51, skipping insertion in model container [2022-12-13 02:58:51,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:51" (2/3) ... [2022-12-13 02:58:51,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dbbde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:58:51, skipping insertion in model container [2022-12-13 02:58:51,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:58:51" (3/3) ... [2022-12-13 02:58:51,849 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005.opt.i [2022-12-13 02:58:51,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 02:58:51,861 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 02:58:51,862 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 02:58:51,915 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 02:58:51,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 280 flow [2022-12-13 02:58:52,052 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-13 02:58:52,052 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:58:52,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2022-12-13 02:58:52,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 130 transitions, 280 flow [2022-12-13 02:58:52,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 126 transitions, 264 flow [2022-12-13 02:58:52,066 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:58:52,090 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 126 transitions, 264 flow [2022-12-13 02:58:52,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 126 transitions, 264 flow [2022-12-13 02:58:52,138 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-13 02:58:52,139 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:58:52,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2022-12-13 02:58:52,147 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 126 transitions, 264 flow [2022-12-13 02:58:52,147 INFO L226 LiptonReduction]: Number of co-enabled transitions 2836 [2022-12-13 02:58:57,508 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-13 02:58:57,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 02:58:57,538 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;@66bfa427, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 02:58:57,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 02:58:57,554 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-12-13 02:58:57,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:58:57,555 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:58:57,555 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:58:57,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:58:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:58:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash 231809873, now seen corresponding path program 1 times [2022-12-13 02:58:57,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:58:57,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571542987] [2022-12-13 02:58:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:58:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:58:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:58:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:58:57,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:58:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571542987] [2022-12-13 02:58:57,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571542987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:58:57,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:58:57,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 02:58:57,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44581533] [2022-12-13 02:58:57,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:58:57,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:58:57,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:58:58,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:58:58,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:58:58,011 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 67 [2022-12-13 02:58:58,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 67 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-12-13 02:58:58,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:58:58,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 67 [2022-12-13 02:58:58,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:02,174 INFO L130 PetriNetUnfolder]: 40551/58271 cut-off events. [2022-12-13 02:59:02,174 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-12-13 02:59:02,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112191 conditions, 58271 events. 40551/58271 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 3408. Compared 444495 event pairs, 5311 based on Foata normal form. 0/35848 useless extension candidates. Maximal degree in co-relation 112179. Up to 46041 conditions per place. [2022-12-13 02:59:02,371 INFO L137 encePairwiseOnDemand]: 61/67 looper letters, 37 selfloop transitions, 2 changer transitions 46/99 dead transitions. [2022-12-13 02:59:02,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 99 transitions, 380 flow [2022-12-13 02:59:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:59:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:59:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2022-12-13 02:59:02,379 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 02:59:02,382 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -1 predicate places. [2022-12-13 02:59:02,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 99 transitions, 380 flow [2022-12-13 02:59:02,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 53 transitions, 196 flow [2022-12-13 02:59:02,809 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:02,810 INFO L89 Accepts]: Start accepts. Operand has 55 places, 53 transitions, 196 flow [2022-12-13 02:59:02,813 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:02,813 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:02,814 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 53 transitions, 196 flow [2022-12-13 02:59:02,819 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 53 transitions, 196 flow [2022-12-13 02:59:02,819 INFO L226 LiptonReduction]: Number of co-enabled transitions 844 [2022-12-13 02:59:05,092 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:59:05,093 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2284 [2022-12-13 02:59:05,094 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 196 flow [2022-12-13 02:59:05,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-12-13 02:59:05,094 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:05,094 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:05,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 02:59:05,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:05,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:05,095 INFO L85 PathProgramCache]: Analyzing trace with hash -568989401, now seen corresponding path program 1 times [2022-12-13 02:59:05,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:05,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550435753] [2022-12-13 02:59:05,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:05,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:05,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:05,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550435753] [2022-12-13 02:59:05,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550435753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:05,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:05,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 02:59:05,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133008493] [2022-12-13 02:59:05,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:05,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:59:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:59:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:59:05,279 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 02:59:05,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-12-13 02:59:05,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:05,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 02:59:05,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:07,513 INFO L130 PetriNetUnfolder]: 25873/36569 cut-off events. [2022-12-13 02:59:07,513 INFO L131 PetriNetUnfolder]: For 4249/4249 co-relation queries the response was YES. [2022-12-13 02:59:07,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99410 conditions, 36569 events. 25873/36569 cut-off events. For 4249/4249 co-relation queries the response was YES. Maximal size of possible extension queue 1291. Compared 227189 event pairs, 3744 based on Foata normal form. 638/30523 useless extension candidates. Maximal degree in co-relation 99395. Up to 24388 conditions per place. [2022-12-13 02:59:07,750 INFO L137 encePairwiseOnDemand]: 31/40 looper letters, 70 selfloop transitions, 10 changer transitions 2/91 dead transitions. [2022-12-13 02:59:07,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 91 transitions, 508 flow [2022-12-13 02:59:07,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:59:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:59:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2022-12-13 02:59:07,752 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2022-12-13 02:59:07,752 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -22 predicate places. [2022-12-13 02:59:07,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 91 transitions, 508 flow [2022-12-13 02:59:07,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 89 transitions, 500 flow [2022-12-13 02:59:08,073 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:08,073 INFO L89 Accepts]: Start accepts. Operand has 56 places, 89 transitions, 500 flow [2022-12-13 02:59:08,074 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:08,074 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:08,074 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 89 transitions, 500 flow [2022-12-13 02:59:08,076 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 89 transitions, 500 flow [2022-12-13 02:59:08,076 INFO L226 LiptonReduction]: Number of co-enabled transitions 970 [2022-12-13 02:59:08,090 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:59:08,091 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-13 02:59:08,091 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 89 transitions, 500 flow [2022-12-13 02:59:08,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-12-13 02:59:08,091 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:08,091 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:08,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 02:59:08,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:08,092 INFO L85 PathProgramCache]: Analyzing trace with hash -458802157, now seen corresponding path program 1 times [2022-12-13 02:59:08,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:08,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336349003] [2022-12-13 02:59:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:08,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:08,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336349003] [2022-12-13 02:59:08,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336349003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:08,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:08,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 02:59:08,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653800262] [2022-12-13 02:59:08,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:08,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:59:08,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:08,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:59:08,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:59:08,224 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2022-12-13 02:59:08,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 89 transitions, 500 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-12-13 02:59:08,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:08,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2022-12-13 02:59:08,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:10,268 INFO L130 PetriNetUnfolder]: 19137/27383 cut-off events. [2022-12-13 02:59:10,268 INFO L131 PetriNetUnfolder]: For 3029/3029 co-relation queries the response was YES. [2022-12-13 02:59:10,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101359 conditions, 27383 events. 19137/27383 cut-off events. For 3029/3029 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 166104 event pairs, 1551 based on Foata normal form. 280/22539 useless extension candidates. Maximal degree in co-relation 101341. Up to 18306 conditions per place. [2022-12-13 02:59:10,441 INFO L137 encePairwiseOnDemand]: 30/39 looper letters, 98 selfloop transitions, 9 changer transitions 0/116 dead transitions. [2022-12-13 02:59:10,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 116 transitions, 866 flow [2022-12-13 02:59:10,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:59:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:59:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2022-12-13 02:59:10,443 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846 [2022-12-13 02:59:10,443 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -20 predicate places. [2022-12-13 02:59:10,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 116 transitions, 866 flow [2022-12-13 02:59:10,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 116 transitions, 866 flow [2022-12-13 02:59:10,656 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:10,657 INFO L89 Accepts]: Start accepts. Operand has 59 places, 116 transitions, 866 flow [2022-12-13 02:59:10,659 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:10,659 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:10,659 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 116 transitions, 866 flow [2022-12-13 02:59:10,663 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 116 transitions, 866 flow [2022-12-13 02:59:10,663 INFO L226 LiptonReduction]: Number of co-enabled transitions 1216 [2022-12-13 02:59:11,615 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 02:59:11,617 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 961 [2022-12-13 02:59:11,617 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 116 transitions, 876 flow [2022-12-13 02:59:11,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-12-13 02:59:11,617 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:11,617 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:11,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 02:59:11,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:11,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1337978808, now seen corresponding path program 1 times [2022-12-13 02:59:11,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:11,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512156390] [2022-12-13 02:59:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:11,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:11,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:11,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512156390] [2022-12-13 02:59:11,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512156390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:11,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:11,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 02:59:11,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975175388] [2022-12-13 02:59:11,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:11,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:59:11,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:59:11,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:59:11,752 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2022-12-13 02:59:11,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 116 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:59:11,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:11,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2022-12-13 02:59:11,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:13,909 INFO L130 PetriNetUnfolder]: 17968/26177 cut-off events. [2022-12-13 02:59:13,909 INFO L131 PetriNetUnfolder]: For 6967/6967 co-relation queries the response was YES. [2022-12-13 02:59:13,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117496 conditions, 26177 events. 17968/26177 cut-off events. For 6967/6967 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 164937 event pairs, 1023 based on Foata normal form. 120/21258 useless extension candidates. Maximal degree in co-relation 117475. Up to 20579 conditions per place. [2022-12-13 02:59:14,069 INFO L137 encePairwiseOnDemand]: 38/43 looper letters, 129 selfloop transitions, 9 changer transitions 0/157 dead transitions. [2022-12-13 02:59:14,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:59:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:59:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-13 02:59:14,070 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 02:59:14,071 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -18 predicate places. [2022-12-13 02:59:14,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,435 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:14,435 INFO L89 Accepts]: Start accepts. Operand has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,436 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:14,436 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:14,436 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,440 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,440 INFO L226 LiptonReduction]: Number of co-enabled transitions 1454 [2022-12-13 02:59:14,492 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:59:14,493 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 58 [2022-12-13 02:59:14,493 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 157 transitions, 1478 flow [2022-12-13 02:59:14,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:59:14,494 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:14,494 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:14,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 02:59:14,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1472747572, now seen corresponding path program 1 times [2022-12-13 02:59:14,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:14,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697898596] [2022-12-13 02:59:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:14,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:14,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:14,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697898596] [2022-12-13 02:59:14,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697898596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:14,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:14,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 02:59:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354003659] [2022-12-13 02:59:14,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:14,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:59:14,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:59:14,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:59:14,612 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2022-12-13 02:59:14,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 157 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-12-13 02:59:14,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:14,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2022-12-13 02:59:14,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:16,338 INFO L130 PetriNetUnfolder]: 16698/24546 cut-off events. [2022-12-13 02:59:16,338 INFO L131 PetriNetUnfolder]: For 15619/15619 co-relation queries the response was YES. [2022-12-13 02:59:16,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130109 conditions, 24546 events. 16698/24546 cut-off events. For 15619/15619 co-relation queries the response was YES. Maximal size of possible extension queue 932. Compared 156579 event pairs, 579 based on Foata normal form. 460/20207 useless extension candidates. Maximal degree in co-relation 130085. Up to 19284 conditions per place. [2022-12-13 02:59:16,515 INFO L137 encePairwiseOnDemand]: 36/40 looper letters, 191 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2022-12-13 02:59:16,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:59:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:59:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2022-12-13 02:59:16,517 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.675 [2022-12-13 02:59:16,517 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -16 predicate places. [2022-12-13 02:59:16,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,771 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:16,771 INFO L89 Accepts]: Start accepts. Operand has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,772 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:16,772 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:16,772 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,779 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,779 INFO L226 LiptonReduction]: Number of co-enabled transitions 1852 [2022-12-13 02:59:16,823 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:59:16,824 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 53 [2022-12-13 02:59:16,824 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 216 transitions, 2466 flow [2022-12-13 02:59:16,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-12-13 02:59:16,825 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:16,825 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:16,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 02:59:16,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:16,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1170417100, now seen corresponding path program 1 times [2022-12-13 02:59:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:16,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940619652] [2022-12-13 02:59:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:16,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:16,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:16,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940619652] [2022-12-13 02:59:16,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940619652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:16,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:16,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 02:59:16,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090819041] [2022-12-13 02:59:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:16,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:59:16,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:16,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:59:16,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:59:16,991 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 02:59:16,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 216 transitions, 2466 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:59:16,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:16,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 02:59:16,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:20,221 INFO L130 PetriNetUnfolder]: 29976/41657 cut-off events. [2022-12-13 02:59:20,221 INFO L131 PetriNetUnfolder]: For 87125/88499 co-relation queries the response was YES. [2022-12-13 02:59:20,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242934 conditions, 41657 events. 29976/41657 cut-off events. For 87125/88499 co-relation queries the response was YES. Maximal size of possible extension queue 1485. Compared 255145 event pairs, 3732 based on Foata normal form. 458/34834 useless extension candidates. Maximal degree in co-relation 242907. Up to 36133 conditions per place. [2022-12-13 02:59:20,534 INFO L137 encePairwiseOnDemand]: 26/40 looper letters, 255 selfloop transitions, 83 changer transitions 0/358 dead transitions. [2022-12-13 02:59:20,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:59:20,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:59:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2022-12-13 02:59:20,535 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7 [2022-12-13 02:59:20,536 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -14 predicate places. [2022-12-13 02:59:20,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:20,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:21,059 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:21,060 INFO L89 Accepts]: Start accepts. Operand has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:21,061 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:21,061 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:21,061 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:21,074 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:21,075 INFO L226 LiptonReduction]: Number of co-enabled transitions 1914 [2022-12-13 02:59:21,094 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:59:21,095 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 36 [2022-12-13 02:59:21,095 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 358 transitions, 4830 flow [2022-12-13 02:59:21,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:59:21,095 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:21,095 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:21,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 02:59:21,096 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:21,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:21,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1800844969, now seen corresponding path program 1 times [2022-12-13 02:59:21,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:21,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321868526] [2022-12-13 02:59:21,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:21,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:21,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:21,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321868526] [2022-12-13 02:59:21,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321868526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:21,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:21,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 02:59:21,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617645796] [2022-12-13 02:59:21,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:21,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:59:21,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:21,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:59:21,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:59:21,243 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 02:59:21,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 358 transitions, 4830 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-12-13 02:59:21,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:21,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 02:59:21,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:26,043 INFO L130 PetriNetUnfolder]: 39026/54612 cut-off events. [2022-12-13 02:59:26,043 INFO L131 PetriNetUnfolder]: For 141850/144719 co-relation queries the response was YES. [2022-12-13 02:59:26,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361658 conditions, 54612 events. 39026/54612 cut-off events. For 141850/144719 co-relation queries the response was YES. Maximal size of possible extension queue 1940. Compared 349928 event pairs, 5734 based on Foata normal form. 2288/46768 useless extension candidates. Maximal degree in co-relation 361628. Up to 47630 conditions per place. [2022-12-13 02:59:26,584 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 361 selfloop transitions, 30 changer transitions 72/476 dead transitions. [2022-12-13 02:59:26,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 476 transitions, 7384 flow [2022-12-13 02:59:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:59:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:59:26,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2022-12-13 02:59:26,586 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.65625 [2022-12-13 02:59:26,586 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -11 predicate places. [2022-12-13 02:59:26,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 476 transitions, 7384 flow [2022-12-13 02:59:26,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 404 transitions, 6242 flow [2022-12-13 02:59:27,092 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:27,092 INFO L89 Accepts]: Start accepts. Operand has 68 places, 404 transitions, 6242 flow [2022-12-13 02:59:27,094 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:27,094 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:27,094 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 404 transitions, 6242 flow [2022-12-13 02:59:27,108 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 404 transitions, 6242 flow [2022-12-13 02:59:27,109 INFO L226 LiptonReduction]: Number of co-enabled transitions 2018 [2022-12-13 02:59:27,138 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:59:27,139 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 47 [2022-12-13 02:59:27,139 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 404 transitions, 6242 flow [2022-12-13 02:59:27,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-12-13 02:59:27,139 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:59:27,140 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:59:27,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 02:59:27,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 02:59:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:59:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash -494130743, now seen corresponding path program 1 times [2022-12-13 02:59:27,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:59:27,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055344869] [2022-12-13 02:59:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:59:27,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:59:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:59:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:59:27,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:59:27,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055344869] [2022-12-13 02:59:27,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055344869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:59:27,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:59:27,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 02:59:27,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163408890] [2022-12-13 02:59:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:59:27,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 02:59:27,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:59:27,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 02:59:27,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 02:59:27,311 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 02:59:27,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 404 transitions, 6242 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2022-12-13 02:59:27,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:59:27,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 02:59:27,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:59:35,678 INFO L130 PetriNetUnfolder]: 58000/82896 cut-off events. [2022-12-13 02:59:35,679 INFO L131 PetriNetUnfolder]: For 273033/278148 co-relation queries the response was YES. [2022-12-13 02:59:35,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613233 conditions, 82896 events. 58000/82896 cut-off events. For 273033/278148 co-relation queries the response was YES. Maximal size of possible extension queue 3317. Compared 596858 event pairs, 8995 based on Foata normal form. 2979/69602 useless extension candidates. Maximal degree in co-relation 613200. Up to 73767 conditions per place. [2022-12-13 02:59:36,193 INFO L137 encePairwiseOnDemand]: 29/40 looper letters, 512 selfloop transitions, 70 changer transitions 196/791 dead transitions. [2022-12-13 02:59:36,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 791 transitions, 13889 flow [2022-12-13 02:59:36,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 02:59:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 02:59:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2022-12-13 02:59:36,196 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2022-12-13 02:59:36,196 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -6 predicate places. [2022-12-13 02:59:36,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 791 transitions, 13889 flow [2022-12-13 02:59:36,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 595 transitions, 10395 flow [2022-12-13 02:59:37,106 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:59:37,106 INFO L89 Accepts]: Start accepts. Operand has 73 places, 595 transitions, 10395 flow [2022-12-13 02:59:37,108 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:59:37,108 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:59:37,108 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 595 transitions, 10395 flow [2022-12-13 02:59:37,136 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 595 transitions, 10395 flow [2022-12-13 02:59:37,137 INFO L226 LiptonReduction]: Number of co-enabled transitions 2762 [2022-12-13 03:12:36,029 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:12:36,030 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 778924 [2022-12-13 03:12:36,030 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 595 transitions, 10409 flow [2022-12-13 03:12:36,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2022-12-13 03:12:36,031 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:12:36,031 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:12:36,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 03:12:36,031 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:12:36,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:12:36,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1173496091, now seen corresponding path program 2 times [2022-12-13 03:12:36,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:12:36,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599484594] [2022-12-13 03:12:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:12:36,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:12:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:12:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:12:36,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:12:36,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599484594] [2022-12-13 03:12:36,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599484594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:12:36,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:12:36,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:12:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341296169] [2022-12-13 03:12:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:12:36,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:12:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:12:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:12:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:12:36,203 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2022-12-13 03:12:36,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 595 transitions, 10409 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-12-13 03:12:36,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:12:36,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2022-12-13 03:12:36,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:12:41,197 INFO L130 PetriNetUnfolder]: 28736/44315 cut-off events. [2022-12-13 03:12:41,197 INFO L131 PetriNetUnfolder]: For 173971/179483 co-relation queries the response was YES. [2022-12-13 03:12:41,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366181 conditions, 44315 events. 28736/44315 cut-off events. For 173971/179483 co-relation queries the response was YES. Maximal size of possible extension queue 2073. Compared 341944 event pairs, 2726 based on Foata normal form. 2749/38431 useless extension candidates. Maximal degree in co-relation 366145. Up to 39348 conditions per place. [2022-12-13 03:12:41,550 INFO L137 encePairwiseOnDemand]: 28/42 looper letters, 395 selfloop transitions, 229 changer transitions 117/774 dead transitions. [2022-12-13 03:12:41,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 774 transitions, 15064 flow [2022-12-13 03:12:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:12:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:12:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2022-12-13 03:12:41,551 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2022-12-13 03:12:41,552 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -3 predicate places. [2022-12-13 03:12:41,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 774 transitions, 15064 flow [2022-12-13 03:12:41,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 657 transitions, 12748 flow [2022-12-13 03:12:42,086 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:12:42,086 INFO L89 Accepts]: Start accepts. Operand has 76 places, 657 transitions, 12748 flow [2022-12-13 03:12:42,088 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:12:42,088 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:12:42,089 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 657 transitions, 12748 flow [2022-12-13 03:12:42,122 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 657 transitions, 12748 flow [2022-12-13 03:12:42,122 INFO L226 LiptonReduction]: Number of co-enabled transitions 2978 [2022-12-13 03:12:42,160 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:12:42,161 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 75 [2022-12-13 03:12:42,161 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 657 transitions, 12748 flow [2022-12-13 03:12:42,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-12-13 03:12:42,161 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:12:42,161 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:12:42,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 03:12:42,162 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:12:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:12:42,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1785023417, now seen corresponding path program 1 times [2022-12-13 03:12:42,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:12:42,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079835310] [2022-12-13 03:12:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:12:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:12:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:12:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:12:42,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:12:42,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079835310] [2022-12-13 03:12:42,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079835310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:12:42,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:12:42,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:12:42,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850593572] [2022-12-13 03:12:42,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:12:42,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:12:42,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:12:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:12:42,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:12:42,301 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 03:12:42,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 657 transitions, 12748 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2022-12-13 03:12:42,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:12:42,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 03:12:42,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:12:45,628 INFO L130 PetriNetUnfolder]: 14073/23410 cut-off events. [2022-12-13 03:12:45,628 INFO L131 PetriNetUnfolder]: For 134851/139624 co-relation queries the response was YES. [2022-12-13 03:12:45,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212007 conditions, 23410 events. 14073/23410 cut-off events. For 134851/139624 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 184970 event pairs, 494 based on Foata normal form. 3295/22505 useless extension candidates. Maximal degree in co-relation 211968. Up to 20502 conditions per place. [2022-12-13 03:12:45,794 INFO L137 encePairwiseOnDemand]: 26/40 looper letters, 325 selfloop transitions, 279 changer transitions 84/719 dead transitions. [2022-12-13 03:12:45,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 719 transitions, 15313 flow [2022-12-13 03:12:45,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:12:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:12:45,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 146 transitions. [2022-12-13 03:12:45,796 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.73 [2022-12-13 03:12:45,796 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 1 predicate places. [2022-12-13 03:12:45,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 719 transitions, 15313 flow [2022-12-13 03:12:45,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 635 transitions, 13481 flow [2022-12-13 03:12:46,094 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:12:46,094 INFO L89 Accepts]: Start accepts. Operand has 80 places, 635 transitions, 13481 flow [2022-12-13 03:12:46,099 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:12:46,099 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:12:46,099 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 635 transitions, 13481 flow [2022-12-13 03:12:46,130 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 635 transitions, 13481 flow [2022-12-13 03:12:46,130 INFO L226 LiptonReduction]: Number of co-enabled transitions 2826 [2022-12-13 03:12:46,141 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:12:46,142 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 48 [2022-12-13 03:12:46,142 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 635 transitions, 13481 flow [2022-12-13 03:12:46,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2022-12-13 03:12:46,143 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:12:46,143 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:12:46,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 03:12:46,143 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:12:46,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:12:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1313386305, now seen corresponding path program 1 times [2022-12-13 03:12:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:12:46,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538128285] [2022-12-13 03:12:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:12:46,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:12:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:12:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:12:46,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:12:46,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538128285] [2022-12-13 03:12:46,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538128285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:12:46,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:12:46,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 03:12:46,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001727163] [2022-12-13 03:12:46,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:12:46,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:12:46,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:12:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:12:46,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:12:46,281 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 03:12:46,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 635 transitions, 13481 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2022-12-13 03:12:46,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:12:46,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 03:12:46,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:12:49,145 INFO L130 PetriNetUnfolder]: 10071/16382 cut-off events. [2022-12-13 03:12:49,146 INFO L131 PetriNetUnfolder]: For 110688/114690 co-relation queries the response was YES. [2022-12-13 03:12:49,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160553 conditions, 16382 events. 10071/16382 cut-off events. For 110688/114690 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 119615 event pairs, 99 based on Foata normal form. 2242/15710 useless extension candidates. Maximal degree in co-relation 160511. Up to 14093 conditions per place. [2022-12-13 03:12:49,218 INFO L137 encePairwiseOnDemand]: 26/40 looper letters, 122 selfloop transitions, 175 changer transitions 318/629 dead transitions. [2022-12-13 03:12:49,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 629 transitions, 14545 flow [2022-12-13 03:12:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:12:49,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:12:49,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2022-12-13 03:12:49,219 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6375 [2022-12-13 03:12:49,219 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2022-12-13 03:12:49,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 629 transitions, 14545 flow [2022-12-13 03:12:49,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 311 transitions, 7089 flow [2022-12-13 03:12:49,396 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:12:49,396 INFO L89 Accepts]: Start accepts. Operand has 81 places, 311 transitions, 7089 flow [2022-12-13 03:12:49,398 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:12:49,398 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:12:49,398 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 311 transitions, 7089 flow [2022-12-13 03:12:49,407 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 311 transitions, 7089 flow [2022-12-13 03:12:49,407 INFO L226 LiptonReduction]: Number of co-enabled transitions 1084 [2022-12-13 03:12:49,614 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:12:49,615 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 219 [2022-12-13 03:12:49,615 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 310 transitions, 7065 flow [2022-12-13 03:12:49,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2022-12-13 03:12:49,615 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:12:49,615 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:12:49,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 03:12:49,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:12:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:12:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash 427766763, now seen corresponding path program 1 times [2022-12-13 03:12:49,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:12:49,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640729458] [2022-12-13 03:12:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:12:49,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:12:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:12:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:12:49,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:12:49,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640729458] [2022-12-13 03:12:49,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640729458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:12:49,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:12:49,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:12:49,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169712143] [2022-12-13 03:12:49,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:12:49,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:12:49,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:12:49,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:12:49,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:12:49,738 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2022-12-13 03:12:49,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 310 transitions, 7065 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-13 03:12:49,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:12:49,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2022-12-13 03:12:49,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:12:50,444 INFO L130 PetriNetUnfolder]: 4564/6915 cut-off events. [2022-12-13 03:12:50,445 INFO L131 PetriNetUnfolder]: For 48161/49025 co-relation queries the response was YES. [2022-12-13 03:12:50,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75862 conditions, 6915 events. 4564/6915 cut-off events. For 48161/49025 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 38227 event pairs, 17 based on Foata normal form. 143/5412 useless extension candidates. Maximal degree in co-relation 75817. Up to 6354 conditions per place. [2022-12-13 03:12:50,483 INFO L137 encePairwiseOnDemand]: 33/36 looper letters, 117 selfloop transitions, 2 changer transitions 287/428 dead transitions. [2022-12-13 03:12:50,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 428 transitions, 10696 flow [2022-12-13 03:12:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:12:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:12:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2022-12-13 03:12:50,485 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2022-12-13 03:12:50,485 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2022-12-13 03:12:50,485 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 428 transitions, 10696 flow [2022-12-13 03:12:50,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 141 transitions, 3292 flow [2022-12-13 03:12:50,572 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:12:50,572 INFO L89 Accepts]: Start accepts. Operand has 81 places, 141 transitions, 3292 flow [2022-12-13 03:12:50,574 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:12:50,574 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:12:50,574 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 141 transitions, 3292 flow [2022-12-13 03:12:50,577 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 141 transitions, 3292 flow [2022-12-13 03:12:50,577 INFO L226 LiptonReduction]: Number of co-enabled transitions 468 Received shutdown request... [2022-12-13 03:13:11,721 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 03:13:12,751 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown