./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 12:41:48,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 12:41:48,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 12:41:48,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 12:41:48,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 12:41:48,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 12:41:48,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 12:41:48,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 12:41:48,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 12:41:48,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 12:41:48,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 12:41:48,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 12:41:48,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 12:41:48,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 12:41:48,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 12:41:48,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 12:41:48,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 12:41:48,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 12:41:48,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 12:41:48,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 12:41:48,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 12:41:48,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 12:41:48,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 12:41:48,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 12:41:48,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 12:41:48,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 12:41:48,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 12:41:48,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 12:41:48,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 12:41:48,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 12:41:48,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 12:41:48,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 12:41:48,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 12:41:48,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 12:41:48,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 12:41:48,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 12:41:48,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 12:41:48,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 12:41:48,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 12:41:48,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 12:41:48,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 12:41:48,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 12:41:48,899 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 12:41:48,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 12:41:48,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 12:41:48,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 12:41:48,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 12:41:48,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 12:41:48,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 12:41:48,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 12:41:48,902 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 12:41:48,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 12:41:48,903 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 12:41:48,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 12:41:48,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 12:41:48,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 12:41:48,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 12:41:48,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 12:41:48,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 12:41:48,904 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 12:41:48,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 12:41:48,905 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 12:41:48,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 12:41:48,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 12:41:48,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 12:41:48,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 12:41:48,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 12:41:48,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 12:41:48,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 12:41:48,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 12:41:48,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 12:41:48,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 12:41:48,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 12:41:48,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 12:41:48,907 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 12:41:48,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 12:41:48,908 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 12:41:48,908 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 12:41:49,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 12:41:49,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 12:41:49,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 12:41:49,209 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 12:41:49,209 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 12:41:49,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-09-01 12:41:50,453 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 12:41:50,635 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 12:41:50,635 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-09-01 12:41:50,642 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc16f023b/34323ee594d544148bc152cc82cc610a/FLAG50d71cc5e [2023-09-01 12:41:50,655 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc16f023b/34323ee594d544148bc152cc82cc610a [2023-09-01 12:41:50,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 12:41:50,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 12:41:50,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 12:41:50,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 12:41:50,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 12:41:50,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b42927d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50, skipping insertion in model container [2023-09-01 12:41:50,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 12:41:50,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 12:41:50,846 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-09-01 12:41:50,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 12:41:50,858 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 12:41:50,883 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-09-01 12:41:50,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 12:41:50,891 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 12:41:50,892 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 12:41:50,896 INFO L208 MainTranslator]: Completed translation [2023-09-01 12:41:50,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50 WrapperNode [2023-09-01 12:41:50,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 12:41:50,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 12:41:50,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 12:41:50,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 12:41:50,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,952 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 265 [2023-09-01 12:41:50,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 12:41:50,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 12:41:50,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 12:41:50,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 12:41:50,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,975 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 12:41:50,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 12:41:50,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 12:41:50,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 12:41:50,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (1/1) ... [2023-09-01 12:41:50,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 12:41:50,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 12:41:51,010 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) [2023-09-01 12:41:51,033 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 [2023-09-01 12:41:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 12:41:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 12:41:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 12:41:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 12:41:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 12:41:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 12:41:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 12:41:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 12:41:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-01 12:41:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-01 12:41:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-01 12:41:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-01 12:41:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 12:41:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-09-01 12:41:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-09-01 12:41:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-09-01 12:41:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-09-01 12:41:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 12:41:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 12:41:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 12:41:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 12:41:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 12:41:51,070 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 12:41:51,200 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 12:41:51,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 12:41:51,517 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 12:41:51,565 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 12:41:51,572 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 12:41:51,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:41:51 BoogieIcfgContainer [2023-09-01 12:41:51,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 12:41:51,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 12:41:51,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 12:41:51,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 12:41:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:41:50" (1/3) ... [2023-09-01 12:41:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d31f72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:41:51, skipping insertion in model container [2023-09-01 12:41:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:41:50" (2/3) ... [2023-09-01 12:41:51,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d31f72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:41:51, skipping insertion in model container [2023-09-01 12:41:51,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:41:51" (3/3) ... [2023-09-01 12:41:51,583 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-09-01 12:41:51,590 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 12:41:51,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 12:41:51,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 12:41:51,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 12:41:51,767 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-09-01 12:41:51,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 236 transitions, 544 flow [2023-09-01 12:41:51,929 INFO L130 PetriNetUnfolder]: 8/208 cut-off events. [2023-09-01 12:41:51,933 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 12:41:51,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 208 events. 8/208 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 231 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 180. Up to 3 conditions per place. [2023-09-01 12:41:51,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 236 transitions, 544 flow [2023-09-01 12:41:51,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 200 transitions, 448 flow [2023-09-01 12:41:51,962 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 12:41:51,976 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 200 transitions, 448 flow [2023-09-01 12:41:51,978 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 200 transitions, 448 flow [2023-09-01 12:41:51,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 200 transitions, 448 flow [2023-09-01 12:41:52,028 INFO L130 PetriNetUnfolder]: 8/200 cut-off events. [2023-09-01 12:41:52,029 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 12:41:52,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 200 events. 8/200 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 230 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 180. Up to 3 conditions per place. [2023-09-01 12:41:52,034 INFO L119 LiptonReduction]: Number of co-enabled transitions 7268 [2023-09-01 12:41:56,003 INFO L134 LiptonReduction]: Checked pairs total: 54922 [2023-09-01 12:41:56,003 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-09-01 12:41:56,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 12:41:56,021 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b05c374, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 12:41:56,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-09-01 12:41:56,033 INFO L130 PetriNetUnfolder]: 6/77 cut-off events. [2023-09-01 12:41:56,034 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 12:41:56,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:41:56,035 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:41:56,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:41:56,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:41:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1652580324, now seen corresponding path program 1 times [2023-09-01 12:41:56,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:41:56,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735790949] [2023-09-01 12:41:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:41:56,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:41:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:41:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:41:56,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:41:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735790949] [2023-09-01 12:41:56,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735790949] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:41:56,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:41:56,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 12:41:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337274225] [2023-09-01 12:41:56,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:41:56,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 12:41:56,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:41:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 12:41:56,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 12:41:56,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 382 [2023-09-01 12:41:56,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 78 transitions, 204 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2023-09-01 12:41:56,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:41:56,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 382 [2023-09-01 12:41:56,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:41:57,625 INFO L130 PetriNetUnfolder]: 6800/10951 cut-off events. [2023-09-01 12:41:57,625 INFO L131 PetriNetUnfolder]: For 1693/1693 co-relation queries the response was YES. [2023-09-01 12:41:57,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22350 conditions, 10951 events. 6800/10951 cut-off events. For 1693/1693 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 75337 event pairs, 6256 based on Foata normal form. 68/9617 useless extension candidates. Maximal degree in co-relation 21902. Up to 9114 conditions per place. [2023-09-01 12:41:57,717 INFO L137 encePairwiseOnDemand]: 380/382 looper letters, 40 selfloop transitions, 0 changer transitions 1/76 dead transitions. [2023-09-01 12:41:57,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 76 transitions, 282 flow [2023-09-01 12:41:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 12:41:57,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 12:41:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 457 transitions. [2023-09-01 12:41:57,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5981675392670157 [2023-09-01 12:41:57,738 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 457 transitions. [2023-09-01 12:41:57,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 457 transitions. [2023-09-01 12:41:57,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:41:57,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 457 transitions. [2023-09-01 12:41:57,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 228.5) internal successors, (457), 2 states have internal predecessors, (457), 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) [2023-09-01 12:41:57,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 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) [2023-09-01 12:41:57,753 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 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) [2023-09-01 12:41:57,755 INFO L175 Difference]: Start difference. First operand has 91 places, 78 transitions, 204 flow. Second operand 2 states and 457 transitions. [2023-09-01 12:41:57,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 76 transitions, 282 flow [2023-09-01 12:41:57,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 250 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-09-01 12:41:57,882 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 166 flow [2023-09-01 12:41:57,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-09-01 12:41:57,887 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -11 predicate places. [2023-09-01 12:41:57,888 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 166 flow [2023-09-01 12:41:57,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2023-09-01 12:41:57,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:41:57,889 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:41:57,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 12:41:57,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:41:57,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:41:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash 415429005, now seen corresponding path program 1 times [2023-09-01 12:41:57,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:41:57,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611075937] [2023-09-01 12:41:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:41:57,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:41:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:41:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:41:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:41:58,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611075937] [2023-09-01 12:41:58,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611075937] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:41:58,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:41:58,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 12:41:58,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468862873] [2023-09-01 12:41:58,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:41:58,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 12:41:58,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:41:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 12:41:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 12:41:58,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 382 [2023-09-01 12:41:58,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 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) [2023-09-01 12:41:58,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:41:58,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 382 [2023-09-01 12:41:58,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:41:59,319 INFO L130 PetriNetUnfolder]: 6155/10159 cut-off events. [2023-09-01 12:41:59,320 INFO L131 PetriNetUnfolder]: For 451/451 co-relation queries the response was YES. [2023-09-01 12:41:59,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18851 conditions, 10159 events. 6155/10159 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 69474 event pairs, 4201 based on Foata normal form. 198/9491 useless extension candidates. Maximal degree in co-relation 18848. Up to 6985 conditions per place. [2023-09-01 12:41:59,384 INFO L137 encePairwiseOnDemand]: 378/382 looper letters, 75 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2023-09-01 12:41:59,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 112 transitions, 410 flow [2023-09-01 12:41:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 12:41:59,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 12:41:59,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 891 transitions. [2023-09-01 12:41:59,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5831151832460733 [2023-09-01 12:41:59,388 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 891 transitions. [2023-09-01 12:41:59,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 891 transitions. [2023-09-01 12:41:59,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:41:59,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 891 transitions. [2023-09-01 12:41:59,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.75) internal successors, (891), 4 states have internal predecessors, (891), 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) [2023-09-01 12:41:59,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 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) [2023-09-01 12:41:59,396 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 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) [2023-09-01 12:41:59,397 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 166 flow. Second operand 4 states and 891 transitions. [2023-09-01 12:41:59,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 112 transitions, 410 flow [2023-09-01 12:41:59,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 112 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 12:41:59,400 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 176 flow [2023-09-01 12:41:59,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2023-09-01 12:41:59,401 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -8 predicate places. [2023-09-01 12:41:59,401 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 176 flow [2023-09-01 12:41:59,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 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) [2023-09-01 12:41:59,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:41:59,402 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:41:59,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 12:41:59,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:41:59,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:41:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1295147923, now seen corresponding path program 2 times [2023-09-01 12:41:59,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:41:59,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428183182] [2023-09-01 12:41:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:41:59,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:41:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:00,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428183182] [2023-09-01 12:42:00,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428183182] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:00,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:00,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-09-01 12:42:00,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205082150] [2023-09-01 12:42:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:00,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-09-01 12:42:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:00,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-09-01 12:42:00,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-09-01 12:42:01,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-09-01 12:42:01,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 176 flow. Second operand has 17 states, 17 states have (on average 178.8235294117647) internal successors, (3040), 17 states have internal predecessors, (3040), 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) [2023-09-01 12:42:01,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:01,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-09-01 12:42:01,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:42:10,051 INFO L130 PetriNetUnfolder]: 78245/106344 cut-off events. [2023-09-01 12:42:10,052 INFO L131 PetriNetUnfolder]: For 5814/5814 co-relation queries the response was YES. [2023-09-01 12:42:10,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214348 conditions, 106344 events. 78245/106344 cut-off events. For 5814/5814 co-relation queries the response was YES. Maximal size of possible extension queue 2348. Compared 653349 event pairs, 15503 based on Foata normal form. 1/102862 useless extension candidates. Maximal degree in co-relation 214343. Up to 68181 conditions per place. [2023-09-01 12:42:10,570 INFO L137 encePairwiseOnDemand]: 364/382 looper letters, 469 selfloop transitions, 129 changer transitions 29/650 dead transitions. [2023-09-01 12:42:10,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 650 transitions, 2795 flow [2023-09-01 12:42:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-09-01 12:42:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-09-01 12:42:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6788 transitions. [2023-09-01 12:42:10,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5077038145100973 [2023-09-01 12:42:10,586 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 6788 transitions. [2023-09-01 12:42:10,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 6788 transitions. [2023-09-01 12:42:10,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:42:10,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 6788 transitions. [2023-09-01 12:42:10,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 193.94285714285715) internal successors, (6788), 35 states have internal predecessors, (6788), 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) [2023-09-01 12:42:10,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 382.0) internal successors, (13752), 36 states have internal predecessors, (13752), 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) [2023-09-01 12:42:10,629 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 382.0) internal successors, (13752), 36 states have internal predecessors, (13752), 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) [2023-09-01 12:42:10,629 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 176 flow. Second operand 35 states and 6788 transitions. [2023-09-01 12:42:10,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 650 transitions, 2795 flow [2023-09-01 12:42:10,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 650 transitions, 2733 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 12:42:10,770 INFO L231 Difference]: Finished difference. Result has 132 places, 214 transitions, 895 flow [2023-09-01 12:42:10,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=895, PETRI_PLACES=132, PETRI_TRANSITIONS=214} [2023-09-01 12:42:10,772 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 41 predicate places. [2023-09-01 12:42:10,775 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 214 transitions, 895 flow [2023-09-01 12:42:10,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 178.8235294117647) internal successors, (3040), 17 states have internal predecessors, (3040), 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) [2023-09-01 12:42:10,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:42:10,777 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:42:10,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 12:42:10,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:42:10,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:42:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1874849889, now seen corresponding path program 3 times [2023-09-01 12:42:10,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:42:10,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130011233] [2023-09-01 12:42:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:42:10,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:42:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:11,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:11,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:11,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130011233] [2023-09-01 12:42:11,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130011233] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:11,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:11,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 12:42:11,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011964503] [2023-09-01 12:42:11,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:11,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 12:42:11,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 12:42:11,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 12:42:11,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 382 [2023-09-01 12:42:11,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 214 transitions, 895 flow. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 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) [2023-09-01 12:42:11,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:11,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 382 [2023-09-01 12:42:11,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:42:13,546 INFO L130 PetriNetUnfolder]: 17697/28148 cut-off events. [2023-09-01 12:42:13,549 INFO L131 PetriNetUnfolder]: For 10480/11072 co-relation queries the response was YES. [2023-09-01 12:42:13,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65263 conditions, 28148 events. 17697/28148 cut-off events. For 10480/11072 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 207603 event pairs, 11035 based on Foata normal form. 589/25361 useless extension candidates. Maximal degree in co-relation 65240. Up to 18616 conditions per place. [2023-09-01 12:42:13,741 INFO L137 encePairwiseOnDemand]: 379/382 looper letters, 84 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2023-09-01 12:42:13,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 164 transitions, 791 flow [2023-09-01 12:42:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 12:42:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 12:42:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions. [2023-09-01 12:42:13,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5881326352530541 [2023-09-01 12:42:13,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 674 transitions. [2023-09-01 12:42:13,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions. [2023-09-01 12:42:13,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:42:13,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions. [2023-09-01 12:42:13,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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) [2023-09-01 12:42:13,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 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) [2023-09-01 12:42:13,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 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) [2023-09-01 12:42:13,758 INFO L175 Difference]: Start difference. First operand has 132 places, 214 transitions, 895 flow. Second operand 3 states and 674 transitions. [2023-09-01 12:42:13,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 164 transitions, 791 flow [2023-09-01 12:42:13,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 164 transitions, 745 flow, removed 12 selfloop flow, removed 11 redundant places. [2023-09-01 12:42:13,946 INFO L231 Difference]: Finished difference. Result has 107 places, 140 transitions, 511 flow [2023-09-01 12:42:13,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=107, PETRI_TRANSITIONS=140} [2023-09-01 12:42:13,947 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 16 predicate places. [2023-09-01 12:42:13,947 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 140 transitions, 511 flow [2023-09-01 12:42:13,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 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) [2023-09-01 12:42:13,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:42:13,948 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:42:13,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 12:42:13,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:42:13,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:42:13,949 INFO L85 PathProgramCache]: Analyzing trace with hash 889750141, now seen corresponding path program 4 times [2023-09-01 12:42:13,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:42:13,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508890214] [2023-09-01 12:42:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:42:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:42:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:15,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:15,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508890214] [2023-09-01 12:42:15,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508890214] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-09-01 12:42:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959600615] [2023-09-01 12:42:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:15,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-09-01 12:42:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-09-01 12:42:15,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-09-01 12:42:15,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-09-01 12:42:15,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 140 transitions, 511 flow. Second operand has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 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) [2023-09-01 12:42:15,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:15,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-09-01 12:42:15,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:42:26,512 INFO L130 PetriNetUnfolder]: 66042/90270 cut-off events. [2023-09-01 12:42:26,512 INFO L131 PetriNetUnfolder]: For 31455/31461 co-relation queries the response was YES. [2023-09-01 12:42:26,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221970 conditions, 90270 events. 66042/90270 cut-off events. For 31455/31461 co-relation queries the response was YES. Maximal size of possible extension queue 1578. Compared 539541 event pairs, 10178 based on Foata normal form. 7/86849 useless extension candidates. Maximal degree in co-relation 221956. Up to 60083 conditions per place. [2023-09-01 12:42:27,178 INFO L137 encePairwiseOnDemand]: 363/382 looper letters, 664 selfloop transitions, 224 changer transitions 25/936 dead transitions. [2023-09-01 12:42:27,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 936 transitions, 4660 flow [2023-09-01 12:42:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-09-01 12:42:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-09-01 12:42:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 12494 transitions. [2023-09-01 12:42:27,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4955576709503411 [2023-09-01 12:42:27,210 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 12494 transitions. [2023-09-01 12:42:27,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 12494 transitions. [2023-09-01 12:42:27,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:42:27,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 12494 transitions. [2023-09-01 12:42:27,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 189.3030303030303) internal successors, (12494), 66 states have internal predecessors, (12494), 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) [2023-09-01 12:42:27,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 382.0) internal successors, (25594), 67 states have internal predecessors, (25594), 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) [2023-09-01 12:42:27,301 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 382.0) internal successors, (25594), 67 states have internal predecessors, (25594), 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) [2023-09-01 12:42:27,302 INFO L175 Difference]: Start difference. First operand has 107 places, 140 transitions, 511 flow. Second operand 66 states and 12494 transitions. [2023-09-01 12:42:27,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 936 transitions, 4660 flow [2023-09-01 12:42:27,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 936 transitions, 4654 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 12:42:27,417 INFO L231 Difference]: Finished difference. Result has 181 places, 349 transitions, 1931 flow [2023-09-01 12:42:27,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=1931, PETRI_PLACES=181, PETRI_TRANSITIONS=349} [2023-09-01 12:42:27,418 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 90 predicate places. [2023-09-01 12:42:27,418 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 349 transitions, 1931 flow [2023-09-01 12:42:27,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 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) [2023-09-01 12:42:27,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:42:27,420 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:42:27,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 12:42:27,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:42:27,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:42:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash 909847024, now seen corresponding path program 1 times [2023-09-01 12:42:27,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:42:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239537519] [2023-09-01 12:42:27,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:42:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:42:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:28,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:28,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:28,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239537519] [2023-09-01 12:42:28,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239537519] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:28,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:28,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-09-01 12:42:28,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106484461] [2023-09-01 12:42:28,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:28,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-01 12:42:28,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:28,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-01 12:42:28,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2023-09-01 12:42:29,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-09-01 12:42:29,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 349 transitions, 1931 flow. Second operand has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 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) [2023-09-01 12:42:29,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:29,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-09-01 12:42:29,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:42:39,285 INFO L130 PetriNetUnfolder]: 75226/102789 cut-off events. [2023-09-01 12:42:39,286 INFO L131 PetriNetUnfolder]: For 129882/129894 co-relation queries the response was YES. [2023-09-01 12:42:39,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308413 conditions, 102789 events. 75226/102789 cut-off events. For 129882/129894 co-relation queries the response was YES. Maximal size of possible extension queue 1783. Compared 627679 event pairs, 21365 based on Foata normal form. 1/99006 useless extension candidates. Maximal degree in co-relation 308388. Up to 84044 conditions per place. [2023-09-01 12:42:40,005 INFO L137 encePairwiseOnDemand]: 364/382 looper letters, 604 selfloop transitions, 146 changer transitions 44/817 dead transitions. [2023-09-01 12:42:40,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 817 transitions, 5401 flow [2023-09-01 12:42:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-09-01 12:42:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-09-01 12:42:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6807 transitions. [2023-09-01 12:42:40,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4949825479930192 [2023-09-01 12:42:40,207 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6807 transitions. [2023-09-01 12:42:40,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6807 transitions. [2023-09-01 12:42:40,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:42:40,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6807 transitions. [2023-09-01 12:42:40,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 189.08333333333334) internal successors, (6807), 36 states have internal predecessors, (6807), 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) [2023-09-01 12:42:40,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 382.0) internal successors, (14134), 37 states have internal predecessors, (14134), 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) [2023-09-01 12:42:40,235 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 382.0) internal successors, (14134), 37 states have internal predecessors, (14134), 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) [2023-09-01 12:42:40,235 INFO L175 Difference]: Start difference. First operand has 181 places, 349 transitions, 1931 flow. Second operand 36 states and 6807 transitions. [2023-09-01 12:42:40,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 817 transitions, 5401 flow [2023-09-01 12:42:41,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 817 transitions, 4941 flow, removed 175 selfloop flow, removed 8 redundant places. [2023-09-01 12:42:41,327 INFO L231 Difference]: Finished difference. Result has 225 places, 486 transitions, 2943 flow [2023-09-01 12:42:41,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2943, PETRI_PLACES=225, PETRI_TRANSITIONS=486} [2023-09-01 12:42:41,328 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 134 predicate places. [2023-09-01 12:42:41,328 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 486 transitions, 2943 flow [2023-09-01 12:42:41,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 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) [2023-09-01 12:42:41,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:42:41,329 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:42:41,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 12:42:41,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:42:41,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:42:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1384318865, now seen corresponding path program 5 times [2023-09-01 12:42:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:42:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311205629] [2023-09-01 12:42:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:42:41,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:42:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:41,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:41,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311205629] [2023-09-01 12:42:41,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311205629] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:41,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:41,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 12:42:41,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811963419] [2023-09-01 12:42:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:41,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 12:42:41,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 12:42:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 12:42:41,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 382 [2023-09-01 12:42:41,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 486 transitions, 2943 flow. Second operand has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 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) [2023-09-01 12:42:41,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:41,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 382 [2023-09-01 12:42:41,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:42:44,437 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 259#true, Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 528#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0) (<= ~temp_4~0 ~temp_10~0)), 498#true, 595#(= ~f1_8~0 (* 256 (div ~f1_8~0 256))), Black: 546#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 518#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 532#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 295#(and (<= ~x_0~0 (+ ~x_6~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 94#L140true, Black: 524#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), 69#L166-1true, Black: 277#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 301#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 250#true, Black: 279#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 293#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 356#true, Black: 261#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 188#thread2EXITtrue, Black: 287#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~temp_5~0 ~y_7~0) (<= ~y_7~0 ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), 172#L102-4true, Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 227#L193-4true, 76#thread3EXITtrue, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-09-01 12:42:44,438 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is not cut-off event [2023-09-01 12:42:44,438 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-09-01 12:42:44,438 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-09-01 12:42:44,438 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-09-01 12:42:44,543 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), 259#true, Black: 528#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0) (<= ~temp_4~0 ~temp_10~0)), Black: 546#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), 498#true, 595#(= ~f1_8~0 (* 256 (div ~f1_8~0 256))), Black: 518#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 532#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 295#(and (<= ~x_0~0 (+ ~x_6~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 94#L140true, Black: 524#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), 69#L166-1true, Black: 277#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 301#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 250#true, Black: 279#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 293#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 356#true, Black: 261#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), Black: 287#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~temp_5~0 ~y_7~0) (<= ~y_7~0 ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 188#thread2EXITtrue, 9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), 172#L102-4true, Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 76#thread3EXITtrue, 11#L194-1true, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-09-01 12:42:44,543 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,543 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,543 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,543 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,621 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 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9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 227#L193-4true, 76#thread3EXITtrue, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-09-01 12:42:44,621 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,621 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,621 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,621 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-09-01 12:42:44,724 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 259#true, Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 528#(and (= ~y_1~0 0) (= 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69#L166-1true, Black: 277#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 301#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 250#true, Black: 279#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 293#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 356#true, 126#L103-1true, Black: 261#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 188#thread2EXITtrue, Black: 287#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~temp_5~0 ~y_7~0) (<= ~y_7~0 ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 76#thread3EXITtrue, 11#L194-1true, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-09-01 12:42:44,724 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is not cut-off event [2023-09-01 12:42:44,724 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-09-01 12:42:44,724 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-09-01 12:42:44,724 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-09-01 12:42:47,437 INFO L130 PetriNetUnfolder]: 34503/53294 cut-off events. [2023-09-01 12:42:47,437 INFO L131 PetriNetUnfolder]: For 66979/74566 co-relation queries the response was YES. [2023-09-01 12:42:47,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155890 conditions, 53294 events. 34503/53294 cut-off events. For 66979/74566 co-relation queries the response was YES. Maximal size of possible extension queue 1556. Compared 401876 event pairs, 15936 based on Foata normal form. 1179/48382 useless extension candidates. Maximal degree in co-relation 155847. Up to 29556 conditions per place. [2023-09-01 12:42:47,967 INFO L137 encePairwiseOnDemand]: 378/382 looper letters, 227 selfloop transitions, 3 changer transitions 0/503 dead transitions. [2023-09-01 12:42:47,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 503 transitions, 3542 flow [2023-09-01 12:42:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 12:42:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 12:42:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 893 transitions. [2023-09-01 12:42:47,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5844240837696335 [2023-09-01 12:42:47,969 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 893 transitions. [2023-09-01 12:42:47,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 893 transitions. [2023-09-01 12:42:47,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:42:47,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 893 transitions. [2023-09-01 12:42:47,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 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) [2023-09-01 12:42:47,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 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) [2023-09-01 12:42:47,973 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 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) [2023-09-01 12:42:47,973 INFO L175 Difference]: Start difference. First operand has 225 places, 486 transitions, 2943 flow. Second operand 4 states and 893 transitions. [2023-09-01 12:42:47,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 503 transitions, 3542 flow [2023-09-01 12:42:48,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 503 transitions, 3313 flow, removed 107 selfloop flow, removed 4 redundant places. [2023-09-01 12:42:48,610 INFO L231 Difference]: Finished difference. Result has 214 places, 427 transitions, 2488 flow [2023-09-01 12:42:48,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=2478, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2488, PETRI_PLACES=214, PETRI_TRANSITIONS=427} [2023-09-01 12:42:48,611 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 123 predicate places. [2023-09-01 12:42:48,611 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 427 transitions, 2488 flow [2023-09-01 12:42:48,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 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) [2023-09-01 12:42:48,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:42:48,612 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:42:48,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 12:42:48,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:42:48,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:42:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash 13186073, now seen corresponding path program 6 times [2023-09-01 12:42:48,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:42:48,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592652240] [2023-09-01 12:42:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:42:48,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:42:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:48,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:48,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592652240] [2023-09-01 12:42:48,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592652240] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:48,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:48,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 12:42:48,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604024717] [2023-09-01 12:42:48,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:48,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 12:42:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:48,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 12:42:48,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 12:42:48,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 382 [2023-09-01 12:42:48,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 427 transitions, 2488 flow. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 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) [2023-09-01 12:42:48,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:48,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 382 [2023-09-01 12:42:48,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:42:53,328 INFO L130 PetriNetUnfolder]: 27865/43898 cut-off events. [2023-09-01 12:42:53,328 INFO L131 PetriNetUnfolder]: For 48978/52747 co-relation queries the response was YES. [2023-09-01 12:42:53,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127988 conditions, 43898 events. 27865/43898 cut-off events. For 48978/52747 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 327683 event pairs, 13933 based on Foata normal form. 720/39779 useless extension candidates. Maximal degree in co-relation 127947. Up to 26541 conditions per place. [2023-09-01 12:42:54,003 INFO L137 encePairwiseOnDemand]: 379/382 looper letters, 173 selfloop transitions, 3 changer transitions 0/448 dead transitions. [2023-09-01 12:42:54,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 448 transitions, 2910 flow [2023-09-01 12:42:54,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 12:42:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 12:42:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2023-09-01 12:42:54,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5898778359511344 [2023-09-01 12:42:54,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2023-09-01 12:42:54,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2023-09-01 12:42:54,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:42:54,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2023-09-01 12:42:54,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2023-09-01 12:42:54,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 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) [2023-09-01 12:42:54,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 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) [2023-09-01 12:42:54,007 INFO L175 Difference]: Start difference. First operand has 214 places, 427 transitions, 2488 flow. Second operand 3 states and 676 transitions. [2023-09-01 12:42:54,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 448 transitions, 2910 flow [2023-09-01 12:42:54,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 448 transitions, 2900 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 12:42:54,246 INFO L231 Difference]: Finished difference. Result has 214 places, 426 transitions, 2489 flow [2023-09-01 12:42:54,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=2478, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2489, PETRI_PLACES=214, PETRI_TRANSITIONS=426} [2023-09-01 12:42:54,247 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 123 predicate places. [2023-09-01 12:42:54,247 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 426 transitions, 2489 flow [2023-09-01 12:42:54,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 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) [2023-09-01 12:42:54,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:42:54,248 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:42:54,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 12:42:54,248 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:42:54,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:42:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 550546311, now seen corresponding path program 7 times [2023-09-01 12:42:54,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:42:54,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716478978] [2023-09-01 12:42:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:42:54,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:42:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:42:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:42:55,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:42:55,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716478978] [2023-09-01 12:42:55,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716478978] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:42:55,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:42:55,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-09-01 12:42:55,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251029843] [2023-09-01 12:42:55,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:42:55,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-09-01 12:42:55,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:42:55,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-09-01 12:42:55,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2023-09-01 12:42:55,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 382 [2023-09-01 12:42:55,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 426 transitions, 2489 flow. Second operand has 21 states, 21 states have (on average 177.28571428571428) internal successors, (3723), 21 states have internal predecessors, (3723), 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) [2023-09-01 12:42:55,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:42:55,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 382 [2023-09-01 12:42:55,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:43:09,914 INFO L130 PetriNetUnfolder]: 74458/102565 cut-off events. [2023-09-01 12:43:09,914 INFO L131 PetriNetUnfolder]: For 183441/183515 co-relation queries the response was YES. [2023-09-01 12:43:10,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351052 conditions, 102565 events. 74458/102565 cut-off events. For 183441/183515 co-relation queries the response was YES. Maximal size of possible extension queue 2216. Compared 631829 event pairs, 9445 based on Foata normal form. 23/99403 useless extension candidates. Maximal degree in co-relation 351010. Up to 63494 conditions per place. [2023-09-01 12:43:11,115 INFO L137 encePairwiseOnDemand]: 362/382 looper letters, 847 selfloop transitions, 432 changer transitions 55/1357 dead transitions. [2023-09-01 12:43:11,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1357 transitions, 10028 flow [2023-09-01 12:43:11,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-09-01 12:43:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2023-09-01 12:43:11,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 14532 transitions. [2023-09-01 12:43:11,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4877164720096657 [2023-09-01 12:43:11,130 INFO L72 ComplementDD]: Start complementDD. Operand 78 states and 14532 transitions. [2023-09-01 12:43:11,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 14532 transitions. [2023-09-01 12:43:11,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:43:11,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 78 states and 14532 transitions. [2023-09-01 12:43:11,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 79 states, 78 states have (on average 186.30769230769232) internal successors, (14532), 78 states have internal predecessors, (14532), 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) [2023-09-01 12:43:11,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 79 states, 79 states have (on average 382.0) internal successors, (30178), 79 states have internal predecessors, (30178), 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) [2023-09-01 12:43:11,193 INFO L81 ComplementDD]: Finished complementDD. Result has 79 states, 79 states have (on average 382.0) internal successors, (30178), 79 states have internal predecessors, (30178), 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) [2023-09-01 12:43:11,193 INFO L175 Difference]: Start difference. First operand has 214 places, 426 transitions, 2489 flow. Second operand 78 states and 14532 transitions. [2023-09-01 12:43:11,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1357 transitions, 10028 flow [2023-09-01 12:43:14,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1357 transitions, 10022 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 12:43:14,381 INFO L231 Difference]: Finished difference. Result has 322 places, 800 transitions, 6768 flow [2023-09-01 12:43:14,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=2483, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=78, PETRI_FLOW=6768, PETRI_PLACES=322, PETRI_TRANSITIONS=800} [2023-09-01 12:43:14,382 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 231 predicate places. [2023-09-01 12:43:14,382 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 800 transitions, 6768 flow [2023-09-01 12:43:14,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 177.28571428571428) internal successors, (3723), 21 states have internal predecessors, (3723), 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) [2023-09-01 12:43:14,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:43:14,383 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:43:14,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 12:43:14,384 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:43:14,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:43:14,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1185867669, now seen corresponding path program 8 times [2023-09-01 12:43:14,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:43:14,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554052368] [2023-09-01 12:43:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:43:14,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:43:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:43:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:43:15,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:43:15,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554052368] [2023-09-01 12:43:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554052368] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:43:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:43:15,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-09-01 12:43:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278315403] [2023-09-01 12:43:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:43:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-09-01 12:43:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:43:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-09-01 12:43:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-09-01 12:43:15,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-09-01 12:43:15,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 800 transitions, 6768 flow. Second operand has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 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) [2023-09-01 12:43:15,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:43:15,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-09-01 12:43:15,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:43:34,808 INFO L130 PetriNetUnfolder]: 87497/120383 cut-off events. [2023-09-01 12:43:34,808 INFO L131 PetriNetUnfolder]: For 845281/845295 co-relation queries the response was YES. [2023-09-01 12:43:36,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513007 conditions, 120383 events. 87497/120383 cut-off events. For 845281/845295 co-relation queries the response was YES. Maximal size of possible extension queue 2483. Compared 752140 event pairs, 24468 based on Foata normal form. 15/116423 useless extension candidates. Maximal degree in co-relation 512932. Up to 95180 conditions per place. [2023-09-01 12:43:36,456 INFO L137 encePairwiseOnDemand]: 363/382 looper letters, 1100 selfloop transitions, 247 changer transitions 20/1390 dead transitions. [2023-09-01 12:43:36,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1390 transitions, 13463 flow [2023-09-01 12:43:36,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-01 12:43:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-09-01 12:43:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 8487 transitions. [2023-09-01 12:43:36,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.493717277486911 [2023-09-01 12:43:36,465 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 8487 transitions. [2023-09-01 12:43:36,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 8487 transitions. [2023-09-01 12:43:36,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:43:36,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 8487 transitions. [2023-09-01 12:43:36,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 188.6) internal successors, (8487), 45 states have internal predecessors, (8487), 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) [2023-09-01 12:43:36,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 382.0) internal successors, (17572), 46 states have internal predecessors, (17572), 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) [2023-09-01 12:43:36,489 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 382.0) internal successors, (17572), 46 states have internal predecessors, (17572), 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) [2023-09-01 12:43:36,489 INFO L175 Difference]: Start difference. First operand has 322 places, 800 transitions, 6768 flow. Second operand 45 states and 8487 transitions. [2023-09-01 12:43:36,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1390 transitions, 13463 flow [2023-09-01 12:43:48,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 1390 transitions, 12289 flow, removed 541 selfloop flow, removed 4 redundant places. [2023-09-01 12:43:49,021 INFO L231 Difference]: Finished difference. Result has 374 places, 1025 transitions, 8974 flow [2023-09-01 12:43:49,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=5641, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=8974, PETRI_PLACES=374, PETRI_TRANSITIONS=1025} [2023-09-01 12:43:49,022 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 283 predicate places. [2023-09-01 12:43:49,022 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 1025 transitions, 8974 flow [2023-09-01 12:43:49,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 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) [2023-09-01 12:43:49,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:43:49,023 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:43:49,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 12:43:49,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:43:49,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:43:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 414408044, now seen corresponding path program 2 times [2023-09-01 12:43:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:43:49,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744804110] [2023-09-01 12:43:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:43:49,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:43:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:43:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:43:49,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:43:49,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744804110] [2023-09-01 12:43:49,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744804110] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:43:49,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:43:49,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-09-01 12:43:49,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201862137] [2023-09-01 12:43:49,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:43:49,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-01 12:43:49,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:43:49,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-01 12:43:49,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2023-09-01 12:43:50,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-09-01 12:43:50,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1025 transitions, 8974 flow. Second operand has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 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) [2023-09-01 12:43:50,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:43:50,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-09-01 12:43:50,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 12:44:17,618 INFO L130 PetriNetUnfolder]: 105363/144544 cut-off events. [2023-09-01 12:44:17,619 INFO L131 PetriNetUnfolder]: For 1411209/1411265 co-relation queries the response was YES. [2023-09-01 12:44:19,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654930 conditions, 144544 events. 105363/144544 cut-off events. For 1411209/1411265 co-relation queries the response was YES. Maximal size of possible extension queue 2823. Compared 918942 event pairs, 28427 based on Foata normal form. 35/139737 useless extension candidates. Maximal degree in co-relation 654841. Up to 110921 conditions per place. [2023-09-01 12:44:20,198 INFO L137 encePairwiseOnDemand]: 364/382 looper letters, 1312 selfloop transitions, 296 changer transitions 31/1662 dead transitions. [2023-09-01 12:44:20,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1662 transitions, 17149 flow [2023-09-01 12:44:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-09-01 12:44:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2023-09-01 12:44:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 9430 transitions. [2023-09-01 12:44:20,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.493717277486911 [2023-09-01 12:44:20,209 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 9430 transitions. [2023-09-01 12:44:20,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 9430 transitions. [2023-09-01 12:44:20,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 12:44:20,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 9430 transitions. [2023-09-01 12:44:20,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 188.6) internal successors, (9430), 50 states have internal predecessors, (9430), 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) [2023-09-01 12:44:20,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 382.0) internal successors, (19482), 51 states have internal predecessors, (19482), 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) [2023-09-01 12:44:20,238 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 382.0) internal successors, (19482), 51 states have internal predecessors, (19482), 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) [2023-09-01 12:44:20,239 INFO L175 Difference]: Start difference. First operand has 374 places, 1025 transitions, 8974 flow. Second operand 50 states and 9430 transitions. [2023-09-01 12:44:20,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1662 transitions, 17149 flow [2023-09-01 12:44:41,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1662 transitions, 16056 flow, removed 541 selfloop flow, removed 2 redundant places. [2023-09-01 12:44:41,811 INFO L231 Difference]: Finished difference. Result has 451 places, 1239 transitions, 11793 flow [2023-09-01 12:44:41,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=7909, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1025, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=898, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=11793, PETRI_PLACES=451, PETRI_TRANSITIONS=1239} [2023-09-01 12:44:41,813 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 360 predicate places. [2023-09-01 12:44:41,813 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 1239 transitions, 11793 flow [2023-09-01 12:44:41,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 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) [2023-09-01 12:44:41,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 12:44:41,814 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 12:44:41,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 12:44:41,815 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-09-01 12:44:41,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 12:44:41,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1933339520, now seen corresponding path program 3 times [2023-09-01 12:44:41,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 12:44:41,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668467202] [2023-09-01 12:44:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 12:44:41,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 12:44:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 12:44:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 12:44:42,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 12:44:42,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668467202] [2023-09-01 12:44:42,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668467202] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 12:44:42,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 12:44:42,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-09-01 12:44:42,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962181557] [2023-09-01 12:44:42,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 12:44:42,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-09-01 12:44:42,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 12:44:42,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-09-01 12:44:42,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2023-09-01 12:44:43,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 382 [2023-09-01 12:44:43,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1239 transitions, 11793 flow. Second operand has 21 states, 21 states have (on average 177.28571428571428) internal successors, (3723), 21 states have internal predecessors, (3723), 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) [2023-09-01 12:44:43,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 12:44:43,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 382 [2023-09-01 12:44:43,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand