./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/queue_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/pthread/queue_longest.i -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 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:36:58,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:36:58,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:36:58,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:36:58,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:36:58,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:36:58,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:36:58,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:36:58,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:36:58,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:36:58,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:36:58,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:36:58,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:36:58,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:36:58,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:36:58,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:36:58,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:36:58,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:36:58,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:36:58,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:36:58,894 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:36:58,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:36:58,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:36:58,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:36:58,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:36:58,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:36:58,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:36:58,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:36:58,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:36:58,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:36:58,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:36:58,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:36:58,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:36:58,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:36:58,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:36:58,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:36:58,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:36:58,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:36:58,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:36:58,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:36:58,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:36:58,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:36:58,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:36:58,941 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:36:58,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:36:58,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:36:58,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:36:58,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:36:58,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:36:58,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:36:58,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:36:58,944 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:36:58,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:36:58,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:36:58,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:36:58,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:36:58,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:36:58,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:36:58,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:36:58,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:36:58,946 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:36:58,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:36:58,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:36:58,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:36:58,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:36:58,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:36:58,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:36:58,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:36:58,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:36:58,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:36:58,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:36:58,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:36:58,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:36:58,950 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:36:58,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:36:58,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:36:58,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 [2022-07-13 21:36:59,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:36:59,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:36:59,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:36:59,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:36:59,202 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:36:59,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_longest.i [2022-07-13 21:36:59,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adefb1d03/c3f5350ce509409384bfcc1506cf0522/FLAG3a3b3cd6c [2022-07-13 21:36:59,776 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:36:59,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i [2022-07-13 21:36:59,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adefb1d03/c3f5350ce509409384bfcc1506cf0522/FLAG3a3b3cd6c [2022-07-13 21:37:00,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adefb1d03/c3f5350ce509409384bfcc1506cf0522 [2022-07-13 21:37:00,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:37:00,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:37:00,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:37:00,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:37:00,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:37:00,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6bb917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00, skipping insertion in model container [2022-07-13 21:37:00,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:37:00,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:37:00,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43296,43309] [2022-07-13 21:37:00,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43503,43516] [2022-07-13 21:37:00,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43783,43796] [2022-07-13 21:37:00,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:37:00,768 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:37:00,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43296,43309] [2022-07-13 21:37:00,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43503,43516] [2022-07-13 21:37:00,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43783,43796] [2022-07-13 21:37:00,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:37:00,865 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:37:00,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00 WrapperNode [2022-07-13 21:37:00,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:37:00,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:37:00,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:37:00,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:37:00,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,943 INFO L137 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 243 [2022-07-13 21:37:00,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:37:00,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:37:00,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:37:00,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:37:00,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:00,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:37:00,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:37:00,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:37:00,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:37:00,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (1/1) ... [2022-07-13 21:37:01,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:37:01,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:37:01,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 21:37:01,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 21:37:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-07-13 21:37:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-07-13 21:37:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-07-13 21:37:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-07-13 21:37:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:37:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:37:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:37:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:37:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:37:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:37:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:37:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:37:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:37:01,089 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:37:01,241 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:37:01,243 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:37:01,519 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:37:01,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:37:01,527 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 21:37:01,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:37:01 BoogieIcfgContainer [2022-07-13 21:37:01,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:37:01,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:37:01,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:37:01,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:37:01,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:37:00" (1/3) ... [2022-07-13 21:37:01,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1988f0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:37:01, skipping insertion in model container [2022-07-13 21:37:01,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:37:00" (2/3) ... [2022-07-13 21:37:01,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1988f0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:37:01, skipping insertion in model container [2022-07-13 21:37:01,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:37:01" (3/3) ... [2022-07-13 21:37:01,537 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2022-07-13 21:37:01,542 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:37:01,549 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:37:01,550 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-13 21:37:01,550 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:37:01,617 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 21:37:01,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 274 transitions, 564 flow [2022-07-13 21:37:01,720 INFO L129 PetriNetUnfolder]: 15/272 cut-off events. [2022-07-13 21:37:01,721 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 21:37:01,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 272 events. 15/272 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 363 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 198. Up to 2 conditions per place. [2022-07-13 21:37:01,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 274 transitions, 564 flow [2022-07-13 21:37:01,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 262 transitions, 533 flow [2022-07-13 21:37:01,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:37:01,751 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@492c56fa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6cefee83 [2022-07-13 21:37:01,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-13 21:37:01,765 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2022-07-13 21:37:01,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:37:01,766 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:01,766 INFO L200 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] [2022-07-13 21:37:01,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:01,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -266547570, now seen corresponding path program 1 times [2022-07-13 21:37:01,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:01,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5742228] [2022-07-13 21:37:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:01,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:02,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:02,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5742228] [2022-07-13 21:37:02,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5742228] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:02,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:02,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 21:37:02,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720786947] [2022-07-13 21:37:02,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:02,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 21:37:02,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:02,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 21:37:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:37:02,055 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 274 [2022-07-13 21:37:02,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 262 transitions, 533 flow. Second operand has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:02,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:02,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 274 [2022-07-13 21:37:02,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:02,138 INFO L129 PetriNetUnfolder]: 10/251 cut-off events. [2022-07-13 21:37:02,139 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-07-13 21:37:02,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 251 events. 10/251 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 285 event pairs, 0 based on Foata normal form. 7/246 useless extension candidates. Maximal degree in co-relation 191. Up to 4 conditions per place. [2022-07-13 21:37:02,145 INFO L132 encePairwiseOnDemand]: 269/274 looper letters, 3 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2022-07-13 21:37:02,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 251 transitions, 517 flow [2022-07-13 21:37:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 21:37:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-07-13 21:37:02,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2022-07-13 21:37:02,163 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9671532846715328 [2022-07-13 21:37:02,163 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 530 transitions. [2022-07-13 21:37:02,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 530 transitions. [2022-07-13 21:37:02,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:02,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 530 transitions. [2022-07-13 21:37:02,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 265.0) internal successors, (530), 2 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:02,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:02,182 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:02,184 INFO L186 Difference]: Start difference. First operand has 254 places, 262 transitions, 533 flow. Second operand 2 states and 530 transitions. [2022-07-13 21:37:02,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 251 transitions, 517 flow [2022-07-13 21:37:02,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 251 transitions, 512 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-13 21:37:02,194 INFO L242 Difference]: Finished difference. Result has 246 places, 251 transitions, 506 flow [2022-07-13 21:37:02,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=506, PETRI_PLACES=246, PETRI_TRANSITIONS=251} [2022-07-13 21:37:02,202 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-07-13 21:37:02,202 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 251 transitions, 506 flow [2022-07-13 21:37:02,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:02,203 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:02,204 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:02,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:37:02,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:02,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1627698218, now seen corresponding path program 1 times [2022-07-13 21:37:02,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:02,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314109170] [2022-07-13 21:37:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:02,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:02,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314109170] [2022-07-13 21:37:02,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314109170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:02,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:02,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 21:37:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664255695] [2022-07-13 21:37:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:02,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 21:37:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 21:37:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-13 21:37:02,557 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 274 [2022-07-13 21:37:02,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 251 transitions, 506 flow. Second operand has 12 states, 12 states have (on average 199.75) internal successors, (2397), 12 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:02,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:02,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 274 [2022-07-13 21:37:02,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:03,548 INFO L129 PetriNetUnfolder]: 1003/4117 cut-off events. [2022-07-13 21:37:03,548 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-07-13 21:37:03,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5628 conditions, 4117 events. 1003/4117 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 33911 event pairs, 789 based on Foata normal form. 0/3832 useless extension candidates. Maximal degree in co-relation 5625. Up to 1435 conditions per place. [2022-07-13 21:37:03,572 INFO L132 encePairwiseOnDemand]: 261/274 looper letters, 52 selfloop transitions, 12 changer transitions 0/247 dead transitions. [2022-07-13 21:37:03,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 247 transitions, 626 flow [2022-07-13 21:37:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 21:37:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-13 21:37:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2626 transitions. [2022-07-13 21:37:03,579 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7372262773722628 [2022-07-13 21:37:03,579 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2626 transitions. [2022-07-13 21:37:03,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2626 transitions. [2022-07-13 21:37:03,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:03,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2626 transitions. [2022-07-13 21:37:03,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 202.0) internal successors, (2626), 13 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 274.0) internal successors, (3836), 14 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,593 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 274.0) internal successors, (3836), 14 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,593 INFO L186 Difference]: Start difference. First operand has 246 places, 251 transitions, 506 flow. Second operand 13 states and 2626 transitions. [2022-07-13 21:37:03,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 247 transitions, 626 flow [2022-07-13 21:37:03,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 247 transitions, 626 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-13 21:37:03,603 INFO L242 Difference]: Finished difference. Result has 255 places, 247 transitions, 522 flow [2022-07-13 21:37:03,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=522, PETRI_PLACES=255, PETRI_TRANSITIONS=247} [2022-07-13 21:37:03,605 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 1 predicate places. [2022-07-13 21:37:03,605 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 247 transitions, 522 flow [2022-07-13 21:37:03,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 199.75) internal successors, (2397), 12 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,607 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:03,607 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:03,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:37:03,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:03,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2013468752, now seen corresponding path program 1 times [2022-07-13 21:37:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:03,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784135529] [2022-07-13 21:37:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:03,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:03,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:03,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784135529] [2022-07-13 21:37:03,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784135529] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:03,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:03,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 21:37:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474237459] [2022-07-13 21:37:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:03,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 21:37:03,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 21:37:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 21:37:03,763 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 274 [2022-07-13 21:37:03,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 247 transitions, 522 flow. Second operand has 4 states, 4 states have (on average 251.75) internal successors, (1007), 4 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:03,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 274 [2022-07-13 21:37:03,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:03,836 INFO L129 PetriNetUnfolder]: 26/432 cut-off events. [2022-07-13 21:37:03,836 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 21:37:03,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 432 events. 26/432 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1084 event pairs, 2 based on Foata normal form. 0/407 useless extension candidates. Maximal degree in co-relation 495. Up to 13 conditions per place. [2022-07-13 21:37:03,840 INFO L132 encePairwiseOnDemand]: 268/274 looper letters, 9 selfloop transitions, 5 changer transitions 0/247 dead transitions. [2022-07-13 21:37:03,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 247 transitions, 554 flow [2022-07-13 21:37:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 21:37:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-07-13 21:37:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1015 transitions. [2022-07-13 21:37:03,845 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.926094890510949 [2022-07-13 21:37:03,845 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1015 transitions. [2022-07-13 21:37:03,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1015 transitions. [2022-07-13 21:37:03,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:03,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1015 transitions. [2022-07-13 21:37:03,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 274.0) internal successors, (1370), 5 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,851 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 274.0) internal successors, (1370), 5 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,851 INFO L186 Difference]: Start difference. First operand has 255 places, 247 transitions, 522 flow. Second operand 4 states and 1015 transitions. [2022-07-13 21:37:03,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 247 transitions, 554 flow [2022-07-13 21:37:03,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 247 transitions, 531 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-07-13 21:37:03,856 INFO L242 Difference]: Finished difference. Result has 246 places, 245 transitions, 505 flow [2022-07-13 21:37:03,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=505, PETRI_PLACES=246, PETRI_TRANSITIONS=245} [2022-07-13 21:37:03,857 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-07-13 21:37:03,857 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 245 transitions, 505 flow [2022-07-13 21:37:03,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 251.75) internal successors, (1007), 4 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,858 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:03,859 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:03,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:37:03,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1617079602, now seen corresponding path program 1 times [2022-07-13 21:37:03,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:03,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361088931] [2022-07-13 21:37:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:03,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:03,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361088931] [2022-07-13 21:37:03,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361088931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:03,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:03,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 21:37:03,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197930656] [2022-07-13 21:37:03,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:03,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 21:37:03,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:03,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 21:37:03,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 21:37:03,929 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 274 [2022-07-13 21:37:03,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 245 transitions, 505 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:03,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:03,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 274 [2022-07-13 21:37:03,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:04,001 INFO L129 PetriNetUnfolder]: 33/527 cut-off events. [2022-07-13 21:37:04,002 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-07-13 21:37:04,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 527 events. 33/527 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1268 event pairs, 2 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 582. Up to 23 conditions per place. [2022-07-13 21:37:04,006 INFO L132 encePairwiseOnDemand]: 270/274 looper letters, 10 selfloop transitions, 3 changer transitions 0/249 dead transitions. [2022-07-13 21:37:04,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 249 transitions, 542 flow [2022-07-13 21:37:04,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 21:37:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-13 21:37:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2022-07-13 21:37:04,008 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9476885644768857 [2022-07-13 21:37:04,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2022-07-13 21:37:04,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2022-07-13 21:37:04,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:04,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2022-07-13 21:37:04,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,013 INFO L186 Difference]: Start difference. First operand has 246 places, 245 transitions, 505 flow. Second operand 3 states and 779 transitions. [2022-07-13 21:37:04,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 249 transitions, 542 flow [2022-07-13 21:37:04,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 249 transitions, 532 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-13 21:37:04,019 INFO L242 Difference]: Finished difference. Result has 246 places, 246 transitions, 510 flow [2022-07-13 21:37:04,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=246, PETRI_TRANSITIONS=246} [2022-07-13 21:37:04,020 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-07-13 21:37:04,020 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 246 transitions, 510 flow [2022-07-13 21:37:04,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,021 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:04,021 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:04,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 21:37:04,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash 771775214, now seen corresponding path program 1 times [2022-07-13 21:37:04,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:04,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618116145] [2022-07-13 21:37:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:04,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:04,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:04,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618116145] [2022-07-13 21:37:04,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618116145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:04,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:04,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 21:37:04,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229522170] [2022-07-13 21:37:04,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:04,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 21:37:04,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:04,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 21:37:04,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 21:37:04,078 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 274 [2022-07-13 21:37:04,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 246 transitions, 510 flow. Second operand has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:04,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 274 [2022-07-13 21:37:04,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:04,196 INFO L129 PetriNetUnfolder]: 51/836 cut-off events. [2022-07-13 21:37:04,196 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-07-13 21:37:04,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 836 events. 51/836 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3004 event pairs, 7 based on Foata normal form. 0/788 useless extension candidates. Maximal degree in co-relation 940. Up to 27 conditions per place. [2022-07-13 21:37:04,202 INFO L132 encePairwiseOnDemand]: 269/274 looper letters, 15 selfloop transitions, 5 changer transitions 0/254 dead transitions. [2022-07-13 21:37:04,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 254 transitions, 573 flow [2022-07-13 21:37:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 21:37:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-13 21:37:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1281 transitions. [2022-07-13 21:37:04,205 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.935036496350365 [2022-07-13 21:37:04,206 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1281 transitions. [2022-07-13 21:37:04,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1281 transitions. [2022-07-13 21:37:04,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:04,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1281 transitions. [2022-07-13 21:37:04,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 256.2) internal successors, (1281), 5 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,212 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,212 INFO L186 Difference]: Start difference. First operand has 246 places, 246 transitions, 510 flow. Second operand 5 states and 1281 transitions. [2022-07-13 21:37:04,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 254 transitions, 573 flow [2022-07-13 21:37:04,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 254 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-13 21:37:04,217 INFO L242 Difference]: Finished difference. Result has 252 places, 249 transitions, 537 flow [2022-07-13 21:37:04,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=537, PETRI_PLACES=252, PETRI_TRANSITIONS=249} [2022-07-13 21:37:04,218 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -2 predicate places. [2022-07-13 21:37:04,218 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 249 transitions, 537 flow [2022-07-13 21:37:04,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,219 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:04,219 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:04,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 21:37:04,219 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash -703749757, now seen corresponding path program 1 times [2022-07-13 21:37:04,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:04,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512368066] [2022-07-13 21:37:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:04,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:04,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:04,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512368066] [2022-07-13 21:37:04,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512368066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:04,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:04,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-13 21:37:04,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550929897] [2022-07-13 21:37:04,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:04,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 21:37:04,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 21:37:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-07-13 21:37:04,651 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 274 [2022-07-13 21:37:04,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 249 transitions, 537 flow. Second operand has 17 states, 17 states have (on average 187.41176470588235) internal successors, (3186), 17 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:04,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:04,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 274 [2022-07-13 21:37:04,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:06,198 INFO L129 PetriNetUnfolder]: 1599/6669 cut-off events. [2022-07-13 21:37:06,199 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-07-13 21:37:06,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9623 conditions, 6669 events. 1599/6669 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 58360 event pairs, 1290 based on Foata normal form. 0/6318 useless extension candidates. Maximal degree in co-relation 9616. Up to 2556 conditions per place. [2022-07-13 21:37:06,242 INFO L132 encePairwiseOnDemand]: 258/274 looper letters, 79 selfloop transitions, 20 changer transitions 0/271 dead transitions. [2022-07-13 21:37:06,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 271 transitions, 781 flow [2022-07-13 21:37:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 21:37:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-13 21:37:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2876 transitions. [2022-07-13 21:37:06,248 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6997566909975669 [2022-07-13 21:37:06,249 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2876 transitions. [2022-07-13 21:37:06,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2876 transitions. [2022-07-13 21:37:06,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:06,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2876 transitions. [2022-07-13 21:37:06,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 191.73333333333332) internal successors, (2876), 15 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:06,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:06,263 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:06,264 INFO L186 Difference]: Start difference. First operand has 252 places, 249 transitions, 537 flow. Second operand 15 states and 2876 transitions. [2022-07-13 21:37:06,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 271 transitions, 781 flow [2022-07-13 21:37:06,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 271 transitions, 781 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-13 21:37:06,270 INFO L242 Difference]: Finished difference. Result has 272 places, 262 transitions, 644 flow [2022-07-13 21:37:06,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=644, PETRI_PLACES=272, PETRI_TRANSITIONS=262} [2022-07-13 21:37:06,271 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 18 predicate places. [2022-07-13 21:37:06,271 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 262 transitions, 644 flow [2022-07-13 21:37:06,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 187.41176470588235) internal successors, (3186), 17 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:06,272 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:06,273 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:06,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 21:37:06,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:06,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:06,274 INFO L85 PathProgramCache]: Analyzing trace with hash -940168002, now seen corresponding path program 1 times [2022-07-13 21:37:06,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:06,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038443785] [2022-07-13 21:37:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:06,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:07,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038443785] [2022-07-13 21:37:07,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038443785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:07,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:07,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-07-13 21:37:07,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977696766] [2022-07-13 21:37:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:07,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-13 21:37:07,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:07,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-13 21:37:07,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2022-07-13 21:37:07,574 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 274 [2022-07-13 21:37:07,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 262 transitions, 644 flow. Second operand has 27 states, 27 states have (on average 173.92592592592592) internal successors, (4696), 27 states have internal predecessors, (4696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:07,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:07,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 274 [2022-07-13 21:37:07,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:10,755 INFO L129 PetriNetUnfolder]: 1457/6029 cut-off events. [2022-07-13 21:37:10,756 INFO L130 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2022-07-13 21:37:10,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8866 conditions, 6029 events. 1457/6029 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 51340 event pairs, 1160 based on Foata normal form. 2/5754 useless extension candidates. Maximal degree in co-relation 8852. Up to 2311 conditions per place. [2022-07-13 21:37:10,802 INFO L132 encePairwiseOnDemand]: 243/274 looper letters, 88 selfloop transitions, 45 changer transitions 0/297 dead transitions. [2022-07-13 21:37:10,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 297 transitions, 1004 flow [2022-07-13 21:37:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-13 21:37:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-07-13 21:37:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4778 transitions. [2022-07-13 21:37:10,815 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6458502297918356 [2022-07-13 21:37:10,815 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4778 transitions. [2022-07-13 21:37:10,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4778 transitions. [2022-07-13 21:37:10,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:10,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4778 transitions. [2022-07-13 21:37:10,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 176.96296296296296) internal successors, (4778), 27 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:10,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:10,856 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:10,856 INFO L186 Difference]: Start difference. First operand has 272 places, 262 transitions, 644 flow. Second operand 27 states and 4778 transitions. [2022-07-13 21:37:10,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 297 transitions, 1004 flow [2022-07-13 21:37:10,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 297 transitions, 991 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-13 21:37:10,870 INFO L242 Difference]: Finished difference. Result has 303 places, 284 transitions, 870 flow [2022-07-13 21:37:10,871 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=870, PETRI_PLACES=303, PETRI_TRANSITIONS=284} [2022-07-13 21:37:10,871 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 49 predicate places. [2022-07-13 21:37:10,872 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 284 transitions, 870 flow [2022-07-13 21:37:10,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 173.92592592592592) internal successors, (4696), 27 states have internal predecessors, (4696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:10,873 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:10,873 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:10,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 21:37:10,874 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1623156073, now seen corresponding path program 1 times [2022-07-13 21:37:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:10,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405332321] [2022-07-13 21:37:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:11,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:11,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405332321] [2022-07-13 21:37:11,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405332321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:11,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:11,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:37:11,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234786649] [2022-07-13 21:37:11,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:11,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:37:11,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:11,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:37:11,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:37:11,581 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 274 [2022-07-13 21:37:11,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 284 transitions, 870 flow. Second operand has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:11,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:11,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 274 [2022-07-13 21:37:11,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:13,508 INFO L129 PetriNetUnfolder]: 1619/6777 cut-off events. [2022-07-13 21:37:13,508 INFO L130 PetriNetUnfolder]: For 451/455 co-relation queries the response was YES. [2022-07-13 21:37:13,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10294 conditions, 6777 events. 1619/6777 cut-off events. For 451/455 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 59251 event pairs, 734 based on Foata normal form. 3/6433 useless extension candidates. Maximal degree in co-relation 10268. Up to 2470 conditions per place. [2022-07-13 21:37:13,566 INFO L132 encePairwiseOnDemand]: 253/274 looper letters, 117 selfloop transitions, 34 changer transitions 0/320 dead transitions. [2022-07-13 21:37:13,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 320 transitions, 1284 flow [2022-07-13 21:37:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 21:37:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-13 21:37:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2913 transitions. [2022-07-13 21:37:13,577 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6644616788321168 [2022-07-13 21:37:13,577 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2913 transitions. [2022-07-13 21:37:13,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2913 transitions. [2022-07-13 21:37:13,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:13,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2913 transitions. [2022-07-13 21:37:13,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 182.0625) internal successors, (2913), 16 states have internal predecessors, (2913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:13,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 274.0) internal successors, (4658), 17 states have internal predecessors, (4658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:13,593 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 274.0) internal successors, (4658), 17 states have internal predecessors, (4658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:13,593 INFO L186 Difference]: Start difference. First operand has 303 places, 284 transitions, 870 flow. Second operand 16 states and 2913 transitions. [2022-07-13 21:37:13,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 320 transitions, 1284 flow [2022-07-13 21:37:13,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 320 transitions, 1241 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-07-13 21:37:13,604 INFO L242 Difference]: Finished difference. Result has 311 places, 294 transitions, 994 flow [2022-07-13 21:37:13,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=994, PETRI_PLACES=311, PETRI_TRANSITIONS=294} [2022-07-13 21:37:13,608 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 57 predicate places. [2022-07-13 21:37:13,608 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 294 transitions, 994 flow [2022-07-13 21:37:13,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:13,609 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:13,609 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:13,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 21:37:13,610 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash -156557425, now seen corresponding path program 2 times [2022-07-13 21:37:13,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:13,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002897791] [2022-07-13 21:37:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:14,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:14,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002897791] [2022-07-13 21:37:14,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002897791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:14,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:14,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:37:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856350860] [2022-07-13 21:37:14,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:14,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:37:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:14,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:37:14,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:37:14,275 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 274 [2022-07-13 21:37:14,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 294 transitions, 994 flow. Second operand has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:14,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:14,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 274 [2022-07-13 21:37:14,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:16,486 INFO L129 PetriNetUnfolder]: 1640/6855 cut-off events. [2022-07-13 21:37:16,486 INFO L130 PetriNetUnfolder]: For 708/712 co-relation queries the response was YES. [2022-07-13 21:37:16,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10633 conditions, 6855 events. 1640/6855 cut-off events. For 708/712 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 59968 event pairs, 735 based on Foata normal form. 3/6511 useless extension candidates. Maximal degree in co-relation 10602. Up to 2475 conditions per place. [2022-07-13 21:37:16,617 INFO L132 encePairwiseOnDemand]: 254/274 looper letters, 118 selfloop transitions, 38 changer transitions 0/325 dead transitions. [2022-07-13 21:37:16,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 325 transitions, 1427 flow [2022-07-13 21:37:16,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 21:37:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-13 21:37:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2737 transitions. [2022-07-13 21:37:16,626 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6659367396593674 [2022-07-13 21:37:16,626 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2737 transitions. [2022-07-13 21:37:16,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2737 transitions. [2022-07-13 21:37:16,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:16,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2737 transitions. [2022-07-13 21:37:16,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 182.46666666666667) internal successors, (2737), 15 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:16,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:16,640 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:16,641 INFO L186 Difference]: Start difference. First operand has 311 places, 294 transitions, 994 flow. Second operand 15 states and 2737 transitions. [2022-07-13 21:37:16,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 325 transitions, 1427 flow [2022-07-13 21:37:16,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 325 transitions, 1395 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-07-13 21:37:16,651 INFO L242 Difference]: Finished difference. Result has 319 places, 300 transitions, 1140 flow [2022-07-13 21:37:16,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1140, PETRI_PLACES=319, PETRI_TRANSITIONS=300} [2022-07-13 21:37:16,652 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 65 predicate places. [2022-07-13 21:37:16,653 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 300 transitions, 1140 flow [2022-07-13 21:37:16,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:16,654 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:16,654 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:16,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 21:37:16,654 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:16,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash 655539223, now seen corresponding path program 3 times [2022-07-13 21:37:16,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:16,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60548020] [2022-07-13 21:37:16,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:16,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:17,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60548020] [2022-07-13 21:37:17,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60548020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:17,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:17,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:37:17,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773308302] [2022-07-13 21:37:17,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:17,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:37:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:37:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:37:17,169 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 274 [2022-07-13 21:37:17,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 300 transitions, 1140 flow. Second operand has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:17,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:17,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 274 [2022-07-13 21:37:17,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:18,664 INFO L129 PetriNetUnfolder]: 1625/6840 cut-off events. [2022-07-13 21:37:18,664 INFO L130 PetriNetUnfolder]: For 1143/1147 co-relation queries the response was YES. [2022-07-13 21:37:18,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10698 conditions, 6840 events. 1625/6840 cut-off events. For 1143/1147 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 60100 event pairs, 741 based on Foata normal form. 6/6497 useless extension candidates. Maximal degree in co-relation 10664. Up to 2414 conditions per place. [2022-07-13 21:37:18,733 INFO L132 encePairwiseOnDemand]: 257/274 looper letters, 101 selfloop transitions, 36 changer transitions 0/306 dead transitions. [2022-07-13 21:37:18,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 306 transitions, 1422 flow [2022-07-13 21:37:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 21:37:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-07-13 21:37:18,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2535 transitions. [2022-07-13 21:37:18,738 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6608446298227321 [2022-07-13 21:37:18,738 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2535 transitions. [2022-07-13 21:37:18,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2535 transitions. [2022-07-13 21:37:18,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:18,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2535 transitions. [2022-07-13 21:37:18,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 181.07142857142858) internal successors, (2535), 14 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:18,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 274.0) internal successors, (4110), 15 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:18,749 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 274.0) internal successors, (4110), 15 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:18,749 INFO L186 Difference]: Start difference. First operand has 319 places, 300 transitions, 1140 flow. Second operand 14 states and 2535 transitions. [2022-07-13 21:37:18,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 306 transitions, 1422 flow [2022-07-13 21:37:18,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 306 transitions, 1386 flow, removed 4 selfloop flow, removed 11 redundant places. [2022-07-13 21:37:18,759 INFO L242 Difference]: Finished difference. Result has 319 places, 296 transitions, 1154 flow [2022-07-13 21:37:18,760 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1154, PETRI_PLACES=319, PETRI_TRANSITIONS=296} [2022-07-13 21:37:18,760 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 65 predicate places. [2022-07-13 21:37:18,761 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 296 transitions, 1154 flow [2022-07-13 21:37:18,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:18,762 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:18,762 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:18,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 21:37:18,762 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:18,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:18,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1000254974, now seen corresponding path program 1 times [2022-07-13 21:37:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:18,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962417902] [2022-07-13 21:37:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:18,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:20,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:20,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962417902] [2022-07-13 21:37:20,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962417902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:20,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:20,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-07-13 21:37:20,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988848359] [2022-07-13 21:37:20,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:20,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-13 21:37:20,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-13 21:37:20,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2022-07-13 21:37:20,071 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2022-07-13 21:37:20,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 296 transitions, 1154 flow. Second operand has 29 states, 29 states have (on average 163.13793103448276) internal successors, (4731), 29 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:20,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:20,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2022-07-13 21:37:20,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:23,408 INFO L129 PetriNetUnfolder]: 847/3524 cut-off events. [2022-07-13 21:37:23,408 INFO L130 PetriNetUnfolder]: For 1183/1186 co-relation queries the response was YES. [2022-07-13 21:37:23,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5962 conditions, 3524 events. 847/3524 cut-off events. For 1183/1186 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 24833 event pairs, 336 based on Foata normal form. 3/3355 useless extension candidates. Maximal degree in co-relation 5929. Up to 1081 conditions per place. [2022-07-13 21:37:23,435 INFO L132 encePairwiseOnDemand]: 245/274 looper letters, 121 selfloop transitions, 52 changer transitions 0/320 dead transitions. [2022-07-13 21:37:23,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 320 transitions, 1567 flow [2022-07-13 21:37:23,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-13 21:37:23,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-07-13 21:37:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4489 transitions. [2022-07-13 21:37:23,442 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6067856177345229 [2022-07-13 21:37:23,442 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4489 transitions. [2022-07-13 21:37:23,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4489 transitions. [2022-07-13 21:37:23,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:23,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4489 transitions. [2022-07-13 21:37:23,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 166.25925925925927) internal successors, (4489), 27 states have internal predecessors, (4489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,459 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,460 INFO L186 Difference]: Start difference. First operand has 319 places, 296 transitions, 1154 flow. Second operand 27 states and 4489 transitions. [2022-07-13 21:37:23,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 320 transitions, 1567 flow [2022-07-13 21:37:23,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 320 transitions, 1475 flow, removed 1 selfloop flow, removed 21 redundant places. [2022-07-13 21:37:23,471 INFO L242 Difference]: Finished difference. Result has 318 places, 287 transitions, 1154 flow [2022-07-13 21:37:23,471 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1154, PETRI_PLACES=318, PETRI_TRANSITIONS=287} [2022-07-13 21:37:23,472 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 64 predicate places. [2022-07-13 21:37:23,472 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 287 transitions, 1154 flow [2022-07-13 21:37:23,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 163.13793103448276) internal successors, (4731), 29 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,473 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:23,473 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:23,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 21:37:23,474 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:23,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1509204245, now seen corresponding path program 1 times [2022-07-13 21:37:23,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:23,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483403904] [2022-07-13 21:37:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:23,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:23,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:23,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483403904] [2022-07-13 21:37:23,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483403904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:23,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:23,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 21:37:23,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298088322] [2022-07-13 21:37:23,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:23,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 21:37:23,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 21:37:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 21:37:23,533 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 274 [2022-07-13 21:37:23,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 287 transitions, 1154 flow. Second operand has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:23,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 274 [2022-07-13 21:37:23,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:23,676 INFO L129 PetriNetUnfolder]: 62/911 cut-off events. [2022-07-13 21:37:23,676 INFO L130 PetriNetUnfolder]: For 544/545 co-relation queries the response was YES. [2022-07-13 21:37:23,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 911 events. 62/911 cut-off events. For 544/545 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3746 event pairs, 7 based on Foata normal form. 18/884 useless extension candidates. Maximal degree in co-relation 1455. Up to 39 conditions per place. [2022-07-13 21:37:23,682 INFO L132 encePairwiseOnDemand]: 268/274 looper letters, 12 selfloop transitions, 6 changer transitions 0/289 dead transitions. [2022-07-13 21:37:23,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 289 transitions, 1197 flow [2022-07-13 21:37:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 21:37:23,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-13 21:37:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-07-13 21:37:23,684 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9306569343065694 [2022-07-13 21:37:23,684 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-07-13 21:37:23,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-07-13 21:37:23,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:23,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-07-13 21:37:23,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,688 INFO L186 Difference]: Start difference. First operand has 318 places, 287 transitions, 1154 flow. Second operand 3 states and 765 transitions. [2022-07-13 21:37:23,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 289 transitions, 1197 flow [2022-07-13 21:37:23,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 289 transitions, 1103 flow, removed 2 selfloop flow, removed 23 redundant places. [2022-07-13 21:37:23,698 INFO L242 Difference]: Finished difference. Result has 297 places, 287 transitions, 1072 flow [2022-07-13 21:37:23,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=297, PETRI_TRANSITIONS=287} [2022-07-13 21:37:23,699 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 43 predicate places. [2022-07-13 21:37:23,700 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 287 transitions, 1072 flow [2022-07-13 21:37:23,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:23,700 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:23,700 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:23,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 21:37:23,701 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:23,701 INFO L85 PathProgramCache]: Analyzing trace with hash -849021323, now seen corresponding path program 1 times [2022-07-13 21:37:23,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:23,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586087677] [2022-07-13 21:37:23,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:24,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:24,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586087677] [2022-07-13 21:37:24,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586087677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:24,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:24,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-07-13 21:37:24,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770696674] [2022-07-13 21:37:24,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:24,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-13 21:37:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:24,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-13 21:37:24,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2022-07-13 21:37:24,610 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 274 [2022-07-13 21:37:24,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 287 transitions, 1072 flow. Second operand has 29 states, 29 states have (on average 167.75862068965517) internal successors, (4865), 29 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:24,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:24,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 274 [2022-07-13 21:37:24,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:26,652 INFO L129 PetriNetUnfolder]: 393/1832 cut-off events. [2022-07-13 21:37:26,653 INFO L130 PetriNetUnfolder]: For 1081/1085 co-relation queries the response was YES. [2022-07-13 21:37:26,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3796 conditions, 1832 events. 393/1832 cut-off events. For 1081/1085 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 10155 event pairs, 43 based on Foata normal form. 0/1767 useless extension candidates. Maximal degree in co-relation 3766. Up to 359 conditions per place. [2022-07-13 21:37:26,660 INFO L132 encePairwiseOnDemand]: 243/274 looper letters, 141 selfloop transitions, 56 changer transitions 0/342 dead transitions. [2022-07-13 21:37:26,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 342 transitions, 1639 flow [2022-07-13 21:37:26,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-13 21:37:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-07-13 21:37:26,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4780 transitions. [2022-07-13 21:37:26,666 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6230448383733055 [2022-07-13 21:37:26,666 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4780 transitions. [2022-07-13 21:37:26,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4780 transitions. [2022-07-13 21:37:26,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:26,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4780 transitions. [2022-07-13 21:37:26,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 170.71428571428572) internal successors, (4780), 28 states have internal predecessors, (4780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:26,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 274.0) internal successors, (7946), 29 states have internal predecessors, (7946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:26,681 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 274.0) internal successors, (7946), 29 states have internal predecessors, (7946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:26,681 INFO L186 Difference]: Start difference. First operand has 297 places, 287 transitions, 1072 flow. Second operand 28 states and 4780 transitions. [2022-07-13 21:37:26,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 342 transitions, 1639 flow [2022-07-13 21:37:26,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 342 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-13 21:37:26,691 INFO L242 Difference]: Finished difference. Result has 328 places, 294 transitions, 1223 flow [2022-07-13 21:37:26,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1223, PETRI_PLACES=328, PETRI_TRANSITIONS=294} [2022-07-13 21:37:26,692 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 74 predicate places. [2022-07-13 21:37:26,692 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 294 transitions, 1223 flow [2022-07-13 21:37:26,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 167.75862068965517) internal successors, (4865), 29 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:26,694 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:26,694 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:26,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 21:37:26,694 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:26,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:26,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1556864042, now seen corresponding path program 1 times [2022-07-13 21:37:26,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:26,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254168215] [2022-07-13 21:37:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:26,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:28,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:28,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254168215] [2022-07-13 21:37:28,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254168215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:28,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:28,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-07-13 21:37:28,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249672272] [2022-07-13 21:37:28,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:28,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-13 21:37:28,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:28,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-13 21:37:28,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2022-07-13 21:37:28,797 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 274 [2022-07-13 21:37:28,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 294 transitions, 1223 flow. Second operand has 33 states, 33 states have (on average 155.75757575757575) internal successors, (5140), 33 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:28,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:28,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 274 [2022-07-13 21:37:28,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:32,724 INFO L129 PetriNetUnfolder]: 539/2379 cut-off events. [2022-07-13 21:37:32,724 INFO L130 PetriNetUnfolder]: For 1658/1662 co-relation queries the response was YES. [2022-07-13 21:37:32,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 2379 events. 539/2379 cut-off events. For 1658/1662 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14419 event pairs, 59 based on Foata normal form. 0/2306 useless extension candidates. Maximal degree in co-relation 5080. Up to 378 conditions per place. [2022-07-13 21:37:32,738 INFO L132 encePairwiseOnDemand]: 234/274 looper letters, 184 selfloop transitions, 66 changer transitions 0/386 dead transitions. [2022-07-13 21:37:32,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 386 transitions, 2006 flow [2022-07-13 21:37:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-13 21:37:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-07-13 21:37:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5564 transitions. [2022-07-13 21:37:32,744 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5801876955161627 [2022-07-13 21:37:32,744 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 5564 transitions. [2022-07-13 21:37:32,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 5564 transitions. [2022-07-13 21:37:32,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:32,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 5564 transitions. [2022-07-13 21:37:32,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 158.97142857142856) internal successors, (5564), 35 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:32,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 274.0) internal successors, (9864), 36 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:32,761 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 274.0) internal successors, (9864), 36 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:32,761 INFO L186 Difference]: Start difference. First operand has 328 places, 294 transitions, 1223 flow. Second operand 35 states and 5564 transitions. [2022-07-13 21:37:32,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 386 transitions, 2006 flow [2022-07-13 21:37:32,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 386 transitions, 1910 flow, removed 0 selfloop flow, removed 21 redundant places. [2022-07-13 21:37:32,774 INFO L242 Difference]: Finished difference. Result has 351 places, 309 transitions, 1373 flow [2022-07-13 21:37:32,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1373, PETRI_PLACES=351, PETRI_TRANSITIONS=309} [2022-07-13 21:37:32,775 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 97 predicate places. [2022-07-13 21:37:32,775 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 309 transitions, 1373 flow [2022-07-13 21:37:32,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 155.75757575757575) internal successors, (5140), 33 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:32,777 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:32,777 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:32,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 21:37:32,777 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:32,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:32,778 INFO L85 PathProgramCache]: Analyzing trace with hash -797621177, now seen corresponding path program 1 times [2022-07-13 21:37:32,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:32,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376550307] [2022-07-13 21:37:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:32,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:37:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:37:36,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:37:36,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376550307] [2022-07-13 21:37:36,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376550307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:37:36,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:37:36,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-07-13 21:37:36,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277274768] [2022-07-13 21:37:36,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:37:36,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 21:37:36,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:37:36,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 21:37:36,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2087, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 21:37:36,758 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 274 [2022-07-13 21:37:36,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 309 transitions, 1373 flow. Second operand has 48 states, 48 states have (on average 133.3125) internal successors, (6399), 48 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:36,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:37:36,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 274 [2022-07-13 21:37:36,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:37:55,447 INFO L129 PetriNetUnfolder]: 5960/14638 cut-off events. [2022-07-13 21:37:55,447 INFO L130 PetriNetUnfolder]: For 7350/7351 co-relation queries the response was YES. [2022-07-13 21:37:55,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32000 conditions, 14638 events. 5960/14638 cut-off events. For 7350/7351 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 115671 event pairs, 1067 based on Foata normal form. 0/13670 useless extension candidates. Maximal degree in co-relation 31954. Up to 4688 conditions per place. [2022-07-13 21:37:55,533 INFO L132 encePairwiseOnDemand]: 215/274 looper letters, 566 selfloop transitions, 192 changer transitions 65/943 dead transitions. [2022-07-13 21:37:55,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 943 transitions, 4854 flow [2022-07-13 21:37:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-07-13 21:37:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2022-07-13 21:37:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 11917 transitions. [2022-07-13 21:37:55,546 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5116788321167883 [2022-07-13 21:37:55,546 INFO L72 ComplementDD]: Start complementDD. Operand 85 states and 11917 transitions. [2022-07-13 21:37:55,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 11917 transitions. [2022-07-13 21:37:55,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:37:55,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 85 states and 11917 transitions. [2022-07-13 21:37:55,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 86 states, 85 states have (on average 140.2) internal successors, (11917), 85 states have internal predecessors, (11917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:55,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 86 states, 86 states have (on average 274.0) internal successors, (23564), 86 states have internal predecessors, (23564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:55,581 INFO L81 ComplementDD]: Finished complementDD. Result has 86 states, 86 states have (on average 274.0) internal successors, (23564), 86 states have internal predecessors, (23564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:55,581 INFO L186 Difference]: Start difference. First operand has 351 places, 309 transitions, 1373 flow. Second operand 85 states and 11917 transitions. [2022-07-13 21:37:55,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 943 transitions, 4854 flow [2022-07-13 21:37:55,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 943 transitions, 4705 flow, removed 15 selfloop flow, removed 22 redundant places. [2022-07-13 21:37:55,636 INFO L242 Difference]: Finished difference. Result has 473 places, 456 transitions, 2733 flow [2022-07-13 21:37:55,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1277, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=85, PETRI_FLOW=2733, PETRI_PLACES=473, PETRI_TRANSITIONS=456} [2022-07-13 21:37:55,637 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 219 predicate places. [2022-07-13 21:37:55,637 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 456 transitions, 2733 flow [2022-07-13 21:37:55,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 133.3125) internal successors, (6399), 48 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:37:55,638 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:37:55,638 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:37:55,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 21:37:55,639 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 21:37:55,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:37:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash 188543869, now seen corresponding path program 2 times [2022-07-13 21:37:55,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:37:55,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215066164] [2022-07-13 21:37:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:37:55,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:37:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat