./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/product-lines/email_spec0_product36.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:42:39,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:42:39,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:42:39,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:42:39,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:42:39,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:42:39,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:42:39,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:42:39,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:42:39,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:42:39,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:42:39,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:42:39,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:42:39,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:42:39,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:42:39,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:42:39,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:42:39,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:42:39,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:42:39,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:42:39,986 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:42:40,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:42:40,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:42:40,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:42:40,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:42:40,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:42:40,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:42:40,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:42:40,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:42:40,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:42:40,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:42:40,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:42:40,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:42:40,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:42:40,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:42:40,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:42:40,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:42:40,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:42:40,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:42:40,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:42:40,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:42:40,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:42:40,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:42:40,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:42:40,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:42:40,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:42:40,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:42:40,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:42:40,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:42:40,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:42:40,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:42:40,054 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:42:40,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:42:40,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:42:40,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:42:40,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:42:40,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:42:40,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:42:40,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:42:40,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:42:40,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:42:40,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:42:40,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:42:40,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:42:40,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:42:40,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:42:40,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:42:40,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:42:40,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:42:40,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:42:40,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:42:40,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:42:40,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:42:40,058 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:42:40,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:42:40,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:42:40,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 [2022-07-21 04:42:40,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:42:40,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:42:40,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:42:40,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:42:40,337 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:42:40,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2022-07-21 04:42:40,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f77b654d/e2845556cc474d1ea281f1cc4b94494a/FLAGbd18f21d5 [2022-07-21 04:42:40,819 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:42:40,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2022-07-21 04:42:40,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f77b654d/e2845556cc474d1ea281f1cc4b94494a/FLAGbd18f21d5 [2022-07-21 04:42:40,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f77b654d/e2845556cc474d1ea281f1cc4b94494a [2022-07-21 04:42:40,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:42:40,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:42:40,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:42:40,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:42:40,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:42:40,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:42:40" (1/1) ... [2022-07-21 04:42:40,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514c79da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:40, skipping insertion in model container [2022-07-21 04:42:40,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:42:40" (1/1) ... [2022-07-21 04:42:40,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:42:40,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:42:41,138 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/product-lines/email_spec0_product36.cil.c[12529,12542] [2022-07-21 04:42:41,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:42:41,315 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:42:41,344 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/product-lines/email_spec0_product36.cil.c[12529,12542] [2022-07-21 04:42:41,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:42:41,417 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:42:41,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41 WrapperNode [2022-07-21 04:42:41,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:42:41,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:42:41,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:42:41,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:42:41,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,494 INFO L137 Inliner]: procedures = 113, calls = 154, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 695 [2022-07-21 04:42:41,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:42:41,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:42:41,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:42:41,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:42:41,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:42:41,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:42:41,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:42:41,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:42:41,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (1/1) ... [2022-07-21 04:42:41,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:42:41,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:42:41,578 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) [2022-07-21 04:42:41,588 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 [2022-07-21 04:42:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-21 04:42:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-21 04:42:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-21 04:42:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-21 04:42:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-21 04:42:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-21 04:42:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:42:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:42:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-21 04:42:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-21 04:42:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-21 04:42:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-21 04:42:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-21 04:42:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-21 04:42:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-21 04:42:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-21 04:42:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-21 04:42:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-21 04:42:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-21 04:42:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:42:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-21 04:42:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-21 04:42:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-21 04:42:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-21 04:42:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-21 04:42:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-21 04:42:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-21 04:42:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-21 04:42:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:42:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-21 04:42:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-21 04:42:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:42:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:42:41,795 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:42:41,796 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:42:42,232 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:42:42,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:42:42,240 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:42:42,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:42:42 BoogieIcfgContainer [2022-07-21 04:42:42,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:42:42,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:42:42,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:42:42,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:42:42,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:42:40" (1/3) ... [2022-07-21 04:42:42,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c70e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:42:42, skipping insertion in model container [2022-07-21 04:42:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:42:41" (2/3) ... [2022-07-21 04:42:42,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c70e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:42:42, skipping insertion in model container [2022-07-21 04:42:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:42:42" (3/3) ... [2022-07-21 04:42:42,248 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product36.cil.c [2022-07-21 04:42:42,258 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:42:42,258 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:42:42,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:42:42,317 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@294b09dd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@674c1532 [2022-07-21 04:42:42,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:42:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 188 states have internal predecessors, (287), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-07-21 04:42:42,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 04:42:42,343 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:42,343 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:42,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:42,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:42,347 INFO L85 PathProgramCache]: Analyzing trace with hash 857599230, now seen corresponding path program 1 times [2022-07-21 04:42:42,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:42,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040665746] [2022-07-21 04:42:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:42:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 04:42:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:42:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 04:42:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 04:42:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:42:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:42:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:42:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 04:42:42,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:42,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040665746] [2022-07-21 04:42:42,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040665746] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:42:42,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436645827] [2022-07-21 04:42:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:42,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:42:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:42:42,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:42:42,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 04:42:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 04:42:43,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:42:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 04:42:43,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:42:43,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436645827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:43,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:42:43,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-07-21 04:42:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704626899] [2022-07-21 04:42:43,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:43,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 04:42:43,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:43,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 04:42:43,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:42:43,112 INFO L87 Difference]: Start difference. First operand has 232 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 188 states have internal predecessors, (287), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:43,168 INFO L93 Difference]: Finished difference Result 370 states and 545 transitions. [2022-07-21 04:42:43,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 04:42:43,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2022-07-21 04:42:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:43,179 INFO L225 Difference]: With dead ends: 370 [2022-07-21 04:42:43,180 INFO L226 Difference]: Without dead ends: 225 [2022-07-21 04:42:43,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:42:43,186 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:43,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:42:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-07-21 04:42:43,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-07-21 04:42:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 179 states have (on average 1.541899441340782) internal successors, (276), 181 states have internal predecessors, (276), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-21 04:42:43,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 337 transitions. [2022-07-21 04:42:43,249 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 337 transitions. Word has length 88 [2022-07-21 04:42:43,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:43,250 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 337 transitions. [2022-07-21 04:42:43,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 337 transitions. [2022-07-21 04:42:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-21 04:42:43,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:43,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:43,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 04:42:43,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-21 04:42:43,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1127852437, now seen corresponding path program 1 times [2022-07-21 04:42:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:43,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423357830] [2022-07-21 04:42:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:43,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:42:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:42:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 04:42:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 04:42:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 04:42:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:42:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:42:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:42:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 04:42:43,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:43,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423357830] [2022-07-21 04:42:43,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423357830] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:42:43,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535376431] [2022-07-21 04:42:43,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:43,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:42:43,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:42:43,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:42:43,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 04:42:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:43,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 04:42:43,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:42:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 04:42:43,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:42:43,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535376431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:43,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:42:43,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-21 04:42:43,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757751163] [2022-07-21 04:42:43,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:43,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:42:43,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:43,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:42:43,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:42:43,884 INFO L87 Difference]: Start difference. First operand 225 states and 337 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:43,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:43,903 INFO L93 Difference]: Finished difference Result 360 states and 523 transitions. [2022-07-21 04:42:43,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:42:43,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2022-07-21 04:42:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:43,905 INFO L225 Difference]: With dead ends: 360 [2022-07-21 04:42:43,905 INFO L226 Difference]: Without dead ends: 228 [2022-07-21 04:42:43,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:42:43,907 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:43,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 668 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:42:43,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-21 04:42:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 227. [2022-07-21 04:42:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 181 states have (on average 1.5359116022099448) internal successors, (278), 183 states have internal predecessors, (278), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-21 04:42:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 339 transitions. [2022-07-21 04:42:43,918 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 339 transitions. Word has length 89 [2022-07-21 04:42:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:43,918 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 339 transitions. [2022-07-21 04:42:43,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 339 transitions. [2022-07-21 04:42:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 04:42:43,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:43,920 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:43,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 04:42:44,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-21 04:42:44,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:44,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:44,141 INFO L85 PathProgramCache]: Analyzing trace with hash -336694131, now seen corresponding path program 1 times [2022-07-21 04:42:44,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:44,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557773036] [2022-07-21 04:42:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:44,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:42:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 04:42:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:42:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:42:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:42:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:42:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:42:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:42:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 04:42:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:44,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557773036] [2022-07-21 04:42:44,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557773036] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:42:44,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187464791] [2022-07-21 04:42:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:44,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:42:44,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:42:44,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:42:44,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 04:42:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 04:42:44,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:42:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 04:42:44,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:42:44,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187464791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:44,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:42:44,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-07-21 04:42:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483373242] [2022-07-21 04:42:44,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:44,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:42:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:42:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:42:44,613 INFO L87 Difference]: Start difference. First operand 227 states and 339 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 04:42:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:44,675 INFO L93 Difference]: Finished difference Result 447 states and 671 transitions. [2022-07-21 04:42:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:42:44,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-07-21 04:42:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:44,681 INFO L225 Difference]: With dead ends: 447 [2022-07-21 04:42:44,682 INFO L226 Difference]: Without dead ends: 229 [2022-07-21 04:42:44,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:42:44,687 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 108 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:44,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1197 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:42:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-07-21 04:42:44,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-07-21 04:42:44,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 182 states have (on average 1.532967032967033) internal successors, (279), 185 states have internal predecessors, (279), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (32), 29 states have call predecessors, (32), 30 states have call successors, (32) [2022-07-21 04:42:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 342 transitions. [2022-07-21 04:42:44,716 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 342 transitions. Word has length 94 [2022-07-21 04:42:44,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:44,718 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 342 transitions. [2022-07-21 04:42:44,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 04:42:44,718 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 342 transitions. [2022-07-21 04:42:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 04:42:44,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:44,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:44,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 04:42:44,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:42:44,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:44,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1838289989, now seen corresponding path program 1 times [2022-07-21 04:42:44,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:44,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458043847] [2022-07-21 04:42:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:44,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:44,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:42:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:42:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 04:42:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:42:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:42:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:42:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:42:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 04:42:45,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:45,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458043847] [2022-07-21 04:42:45,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458043847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:45,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:45,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 04:42:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427681297] [2022-07-21 04:42:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:45,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:42:45,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:42:45,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:42:45,039 INFO L87 Difference]: Start difference. First operand 229 states and 342 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 04:42:45,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:45,973 INFO L93 Difference]: Finished difference Result 589 states and 911 transitions. [2022-07-21 04:42:45,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:42:45,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2022-07-21 04:42:45,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:45,976 INFO L225 Difference]: With dead ends: 589 [2022-07-21 04:42:45,976 INFO L226 Difference]: Without dead ends: 379 [2022-07-21 04:42:45,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:42:45,977 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 632 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:45,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 977 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:42:45,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-07-21 04:42:46,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 229. [2022-07-21 04:42:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 182 states have (on average 1.532967032967033) internal successors, (279), 185 states have internal predecessors, (279), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (31), 29 states have call predecessors, (31), 30 states have call successors, (31) [2022-07-21 04:42:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 341 transitions. [2022-07-21 04:42:46,007 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 341 transitions. Word has length 95 [2022-07-21 04:42:46,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:46,023 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 341 transitions. [2022-07-21 04:42:46,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 04:42:46,024 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 341 transitions. [2022-07-21 04:42:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 04:42:46,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:46,025 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:46,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 04:42:46,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:46,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:46,026 INFO L85 PathProgramCache]: Analyzing trace with hash 798060657, now seen corresponding path program 2 times [2022-07-21 04:42:46,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:46,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368881613] [2022-07-21 04:42:46,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:46,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:42:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 04:42:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 04:42:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:42:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:42:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:42:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:42:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 04:42:46,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:46,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368881613] [2022-07-21 04:42:46,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368881613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:46,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:46,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 04:42:46,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076183890] [2022-07-21 04:42:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:46,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:42:46,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:46,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:42:46,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:42:46,101 INFO L87 Difference]: Start difference. First operand 229 states and 341 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 04:42:47,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:47,042 INFO L93 Difference]: Finished difference Result 591 states and 914 transitions. [2022-07-21 04:42:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:42:47,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2022-07-21 04:42:47,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:47,046 INFO L225 Difference]: With dead ends: 591 [2022-07-21 04:42:47,046 INFO L226 Difference]: Without dead ends: 381 [2022-07-21 04:42:47,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:42:47,047 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 626 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:47,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 980 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:42:47,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-21 04:42:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 231. [2022-07-21 04:42:47,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 183 states have (on average 1.530054644808743) internal successors, (280), 187 states have internal predecessors, (280), 31 states have call successors, (31), 14 states have call predecessors, (31), 16 states have return successors, (33), 29 states have call predecessors, (33), 30 states have call successors, (33) [2022-07-21 04:42:47,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 344 transitions. [2022-07-21 04:42:47,073 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 344 transitions. Word has length 96 [2022-07-21 04:42:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:47,073 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 344 transitions. [2022-07-21 04:42:47,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 04:42:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 344 transitions. [2022-07-21 04:42:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 04:42:47,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:47,075 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:47,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 04:42:47,075 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1156358122, now seen corresponding path program 1 times [2022-07-21 04:42:47,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71995828] [2022-07-21 04:42:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:47,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:42:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 04:42:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:42:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:42:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:42:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:42:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:42:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:47,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:47,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71995828] [2022-07-21 04:42:47,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71995828] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:42:47,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022438946] [2022-07-21 04:42:47,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:47,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:42:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:42:47,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:42:47,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 04:42:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:47,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:42:47,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:42:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:47,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:42:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:47,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022438946] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:42:47,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:42:47,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-21 04:42:47,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240116162] [2022-07-21 04:42:47,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:42:47,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 04:42:47,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:47,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 04:42:47,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:47,436 INFO L87 Difference]: Start difference. First operand 231 states and 344 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:42:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:48,187 INFO L93 Difference]: Finished difference Result 696 states and 1105 transitions. [2022-07-21 04:42:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:42:48,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 97 [2022-07-21 04:42:48,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:48,190 INFO L225 Difference]: With dead ends: 696 [2022-07-21 04:42:48,191 INFO L226 Difference]: Without dead ends: 564 [2022-07-21 04:42:48,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:42:48,192 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 984 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:48,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1321 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:48,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-07-21 04:42:48,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 390. [2022-07-21 04:42:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 333 states have (on average 1.6516516516516517) internal successors, (550), 337 states have internal predecessors, (550), 40 states have call successors, (40), 14 states have call predecessors, (40), 16 states have return successors, (42), 38 states have call predecessors, (42), 39 states have call successors, (42) [2022-07-21 04:42:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 632 transitions. [2022-07-21 04:42:48,213 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 632 transitions. Word has length 97 [2022-07-21 04:42:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:48,213 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 632 transitions. [2022-07-21 04:42:48,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:42:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 632 transitions. [2022-07-21 04:42:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-21 04:42:48,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:48,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:48,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 04:42:48,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:42:48,429 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:48,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1308293423, now seen corresponding path program 1 times [2022-07-21 04:42:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:48,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379328406] [2022-07-21 04:42:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:42:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 04:42:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:42:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:42:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:42:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:42:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:42:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:48,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379328406] [2022-07-21 04:42:48,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379328406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:48,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:48,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:48,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862194675] [2022-07-21 04:42:48,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:48,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:48,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:48,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:48,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:48,491 INFO L87 Difference]: Start difference. First operand 390 states and 632 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:49,167 INFO L93 Difference]: Finished difference Result 1068 states and 1777 transitions. [2022-07-21 04:42:49,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:49,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2022-07-21 04:42:49,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:49,171 INFO L225 Difference]: With dead ends: 1068 [2022-07-21 04:42:49,171 INFO L226 Difference]: Without dead ends: 706 [2022-07-21 04:42:49,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:49,172 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 623 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:49,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 891 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:49,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-07-21 04:42:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 548. [2022-07-21 04:42:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 482 states have (on average 1.6867219917012448) internal successors, (813), 486 states have internal predecessors, (813), 49 states have call successors, (49), 14 states have call predecessors, (49), 16 states have return successors, (51), 47 states have call predecessors, (51), 48 states have call successors, (51) [2022-07-21 04:42:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 913 transitions. [2022-07-21 04:42:49,193 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 913 transitions. Word has length 104 [2022-07-21 04:42:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:49,194 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 913 transitions. [2022-07-21 04:42:49,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 913 transitions. [2022-07-21 04:42:49,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-21 04:42:49,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:49,196 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:49,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:42:49,196 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:49,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2130649938, now seen corresponding path program 1 times [2022-07-21 04:42:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:49,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286527240] [2022-07-21 04:42:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:49,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 04:42:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 04:42:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:42:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:42:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:42:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:42:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:42:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:49,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:49,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286527240] [2022-07-21 04:42:49,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286527240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:49,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:49,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:49,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225380887] [2022-07-21 04:42:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:49,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:49,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:49,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:49,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:49,247 INFO L87 Difference]: Start difference. First operand 548 states and 913 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:49,913 INFO L93 Difference]: Finished difference Result 1445 states and 2455 transitions. [2022-07-21 04:42:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:49,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2022-07-21 04:42:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:49,917 INFO L225 Difference]: With dead ends: 1445 [2022-07-21 04:42:49,917 INFO L226 Difference]: Without dead ends: 943 [2022-07-21 04:42:49,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:49,919 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 620 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:49,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 860 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-07-21 04:42:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 785. [2022-07-21 04:42:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 704 states have (on average 1.7116477272727273) internal successors, (1205), 708 states have internal predecessors, (1205), 64 states have call successors, (64), 14 states have call predecessors, (64), 16 states have return successors, (66), 62 states have call predecessors, (66), 63 states have call successors, (66) [2022-07-21 04:42:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1335 transitions. [2022-07-21 04:42:49,943 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1335 transitions. Word has length 105 [2022-07-21 04:42:49,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:49,943 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1335 transitions. [2022-07-21 04:42:49,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1335 transitions. [2022-07-21 04:42:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-21 04:42:49,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:49,946 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:49,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:42:49,947 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:49,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1333444051, now seen corresponding path program 1 times [2022-07-21 04:42:49,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:49,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505340912] [2022-07-21 04:42:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:49,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:42:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:42:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:42:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:42:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:42:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:42:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:42:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:50,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:50,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505340912] [2022-07-21 04:42:50,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505340912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:50,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:50,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:50,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787808932] [2022-07-21 04:42:50,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:50,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:50,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:50,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:50,003 INFO L87 Difference]: Start difference. First operand 785 states and 1335 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:50,675 INFO L93 Difference]: Finished difference Result 2066 states and 3559 transitions. [2022-07-21 04:42:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2022-07-21 04:42:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:50,681 INFO L225 Difference]: With dead ends: 2066 [2022-07-21 04:42:50,681 INFO L226 Difference]: Without dead ends: 1346 [2022-07-21 04:42:50,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:50,683 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 618 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:50,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 867 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:50,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-07-21 04:42:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1188. [2022-07-21 04:42:50,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1083 states have (on average 1.7202216066481995) internal successors, (1863), 1087 states have internal predecessors, (1863), 88 states have call successors, (88), 14 states have call predecessors, (88), 16 states have return successors, (90), 86 states have call predecessors, (90), 87 states have call successors, (90) [2022-07-21 04:42:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 2041 transitions. [2022-07-21 04:42:50,718 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 2041 transitions. Word has length 106 [2022-07-21 04:42:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:50,718 INFO L495 AbstractCegarLoop]: Abstraction has 1188 states and 2041 transitions. [2022-07-21 04:42:50,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 2041 transitions. [2022-07-21 04:42:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 04:42:50,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:50,722 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:50,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:42:50,722 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash -65921600, now seen corresponding path program 1 times [2022-07-21 04:42:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:50,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443429289] [2022-07-21 04:42:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:50,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:42:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:42:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:42:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:42:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:42:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:42:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:42:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:50,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443429289] [2022-07-21 04:42:50,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443429289] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:50,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:50,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576458147] [2022-07-21 04:42:50,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:50,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:50,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:50,785 INFO L87 Difference]: Start difference. First operand 1188 states and 2041 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:51,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:51,470 INFO L93 Difference]: Finished difference Result 3071 states and 5330 transitions. [2022-07-21 04:42:51,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:51,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2022-07-21 04:42:51,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:51,478 INFO L225 Difference]: With dead ends: 3071 [2022-07-21 04:42:51,478 INFO L226 Difference]: Without dead ends: 1996 [2022-07-21 04:42:51,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:51,481 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 617 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:51,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 886 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:51,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2022-07-21 04:42:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1838. [2022-07-21 04:42:51,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1694 states have (on average 1.7207792207792207) internal successors, (2915), 1698 states have internal predecessors, (2915), 127 states have call successors, (127), 14 states have call predecessors, (127), 16 states have return successors, (129), 125 states have call predecessors, (129), 126 states have call successors, (129) [2022-07-21 04:42:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 3171 transitions. [2022-07-21 04:42:51,540 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 3171 transitions. Word has length 107 [2022-07-21 04:42:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:51,540 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 3171 transitions. [2022-07-21 04:42:51,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 3171 transitions. [2022-07-21 04:42:51,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 04:42:51,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:51,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:51,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 04:42:51,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:51,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:51,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2142427307, now seen corresponding path program 1 times [2022-07-21 04:42:51,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:51,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729449075] [2022-07-21 04:42:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:42:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 04:42:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:42:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:42:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:42:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:42:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:42:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:51,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:51,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729449075] [2022-07-21 04:42:51,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729449075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:51,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:51,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:51,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522269438] [2022-07-21 04:42:51,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:51,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:51,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:51,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:51,618 INFO L87 Difference]: Start difference. First operand 1838 states and 3171 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:52,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:52,280 INFO L93 Difference]: Finished difference Result 4726 states and 8230 transitions. [2022-07-21 04:42:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:52,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2022-07-21 04:42:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:52,309 INFO L225 Difference]: With dead ends: 4726 [2022-07-21 04:42:52,309 INFO L226 Difference]: Without dead ends: 3081 [2022-07-21 04:42:52,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:52,323 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 615 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:52,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 886 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 04:42:52,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2022-07-21 04:42:52,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2923. [2022-07-21 04:42:52,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2713 states have (on average 1.7176557316623664) internal successors, (4660), 2717 states have internal predecessors, (4660), 193 states have call successors, (193), 14 states have call predecessors, (193), 16 states have return successors, (195), 191 states have call predecessors, (195), 192 states have call successors, (195) [2022-07-21 04:42:52,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5048 transitions. [2022-07-21 04:42:52,446 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5048 transitions. Word has length 108 [2022-07-21 04:42:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:52,447 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 5048 transitions. [2022-07-21 04:42:52,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5048 transitions. [2022-07-21 04:42:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-21 04:42:52,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:52,457 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:52,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:42:52,457 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:52,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:52,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1459544126, now seen corresponding path program 1 times [2022-07-21 04:42:52,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:52,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534692] [2022-07-21 04:42:52,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:52,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 04:42:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 04:42:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:42:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:42:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:42:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:42:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:42:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:52,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:52,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534692] [2022-07-21 04:42:52,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:52,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:52,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526282734] [2022-07-21 04:42:52,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:52,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:52,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:52,548 INFO L87 Difference]: Start difference. First operand 2923 states and 5048 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:53,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:53,256 INFO L93 Difference]: Finished difference Result 7306 states and 12770 transitions. [2022-07-21 04:42:53,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:53,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 109 [2022-07-21 04:42:53,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:53,273 INFO L225 Difference]: With dead ends: 7306 [2022-07-21 04:42:53,273 INFO L226 Difference]: Without dead ends: 4776 [2022-07-21 04:42:53,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:53,280 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 612 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:53,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 860 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:53,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2022-07-21 04:42:53,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 4618. [2022-07-21 04:42:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4618 states, 4291 states have (on average 1.718247494756467) internal successors, (7373), 4295 states have internal predecessors, (7373), 310 states have call successors, (310), 14 states have call predecessors, (310), 16 states have return successors, (312), 308 states have call predecessors, (312), 309 states have call successors, (312) [2022-07-21 04:42:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 7995 transitions. [2022-07-21 04:42:53,480 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 7995 transitions. Word has length 109 [2022-07-21 04:42:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:53,481 INFO L495 AbstractCegarLoop]: Abstraction has 4618 states and 7995 transitions. [2022-07-21 04:42:53,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 7995 transitions. [2022-07-21 04:42:53,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-21 04:42:53,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:53,494 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:53,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:42:53,494 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:53,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:53,494 INFO L85 PathProgramCache]: Analyzing trace with hash -512212777, now seen corresponding path program 1 times [2022-07-21 04:42:53,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:53,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506967888] [2022-07-21 04:42:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:53,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 04:42:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:42:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:42:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:42:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:42:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:42:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:42:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:53,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:53,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506967888] [2022-07-21 04:42:53,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506967888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:53,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:53,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:53,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42190943] [2022-07-21 04:42:53,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:53,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:53,553 INFO L87 Difference]: Start difference. First operand 4618 states and 7995 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:54,318 INFO L93 Difference]: Finished difference Result 12093 states and 21133 transitions. [2022-07-21 04:42:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2022-07-21 04:42:54,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:54,364 INFO L225 Difference]: With dead ends: 12093 [2022-07-21 04:42:54,364 INFO L226 Difference]: Without dead ends: 8036 [2022-07-21 04:42:54,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:54,383 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 612 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:54,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 882 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 04:42:54,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-07-21 04:42:54,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7878. [2022-07-21 04:42:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7878 states, 7335 states have (on average 1.713019768234492) internal successors, (12565), 7339 states have internal predecessors, (12565), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2022-07-21 04:42:54,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7878 states to 7878 states and 13619 transitions. [2022-07-21 04:42:54,706 INFO L78 Accepts]: Start accepts. Automaton has 7878 states and 13619 transitions. Word has length 110 [2022-07-21 04:42:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:54,706 INFO L495 AbstractCegarLoop]: Abstraction has 7878 states and 13619 transitions. [2022-07-21 04:42:54,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 7878 states and 13619 transitions. [2022-07-21 04:42:54,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-21 04:42:54,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:54,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:54,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:42:54,729 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:54,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1093396272, now seen corresponding path program 1 times [2022-07-21 04:42:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:54,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039107160] [2022-07-21 04:42:54,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:42:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:42:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:42:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:42:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:42:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:42:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:42:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:54,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:54,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039107160] [2022-07-21 04:42:54,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039107160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:54,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:54,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:54,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651566336] [2022-07-21 04:42:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:54,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:54,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:54,792 INFO L87 Difference]: Start difference. First operand 7878 states and 13619 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:55,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:55,805 INFO L93 Difference]: Finished difference Result 18188 states and 31420 transitions. [2022-07-21 04:42:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:55,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2022-07-21 04:42:55,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:55,832 INFO L225 Difference]: With dead ends: 18188 [2022-07-21 04:42:55,832 INFO L226 Difference]: Without dead ends: 11647 [2022-07-21 04:42:55,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:55,845 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 608 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:55,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 835 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 04:42:55,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2022-07-21 04:42:56,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11489. [2022-07-21 04:42:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11489 states, 10946 states have (on average 1.6890188196601499) internal successors, (18488), 10950 states have internal predecessors, (18488), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2022-07-21 04:42:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11489 states to 11489 states and 19542 transitions. [2022-07-21 04:42:56,215 INFO L78 Accepts]: Start accepts. Automaton has 11489 states and 19542 transitions. Word has length 111 [2022-07-21 04:42:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:56,215 INFO L495 AbstractCegarLoop]: Abstraction has 11489 states and 19542 transitions. [2022-07-21 04:42:56,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 11489 states and 19542 transitions. [2022-07-21 04:42:56,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 04:42:56,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:56,239 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:56,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:42:56,239 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:56,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:56,239 INFO L85 PathProgramCache]: Analyzing trace with hash 874441945, now seen corresponding path program 1 times [2022-07-21 04:42:56,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:56,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411499645] [2022-07-21 04:42:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:56,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:42:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:42:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:42:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:42:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:42:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:42:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:42:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:42:56,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:56,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411499645] [2022-07-21 04:42:56,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411499645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:56,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:56,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:42:56,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362138892] [2022-07-21 04:42:56,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:56,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:42:56,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:56,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:42:56,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:42:56,289 INFO L87 Difference]: Start difference. First operand 11489 states and 19542 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:57,368 INFO L93 Difference]: Finished difference Result 30738 states and 52556 transitions. [2022-07-21 04:42:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:42:57,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2022-07-21 04:42:57,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:57,419 INFO L225 Difference]: With dead ends: 30738 [2022-07-21 04:42:57,420 INFO L226 Difference]: Without dead ends: 20909 [2022-07-21 04:42:57,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:42:57,439 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 607 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:57,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 863 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:42:57,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20909 states. [2022-07-21 04:42:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20909 to 20751. [2022-07-21 04:42:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20751 states, 19797 states have (on average 1.677829974238521) internal successors, (33216), 19801 states have internal predecessors, (33216), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2022-07-21 04:42:58,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20751 states to 20751 states and 35092 transitions. [2022-07-21 04:42:58,211 INFO L78 Accepts]: Start accepts. Automaton has 20751 states and 35092 transitions. Word has length 112 [2022-07-21 04:42:58,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:42:58,212 INFO L495 AbstractCegarLoop]: Abstraction has 20751 states and 35092 transitions. [2022-07-21 04:42:58,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:58,212 INFO L276 IsEmpty]: Start isEmpty. Operand 20751 states and 35092 transitions. [2022-07-21 04:42:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 04:42:58,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:42:58,257 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:42:58,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:42:58,257 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:42:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:42:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash 292262124, now seen corresponding path program 2 times [2022-07-21 04:42:58,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:42:58,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876907111] [2022-07-21 04:42:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:42:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:42:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:42:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:42:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:42:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:42:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:42:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:42:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:42:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:42:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:42:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:42:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:42:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 04:42:58,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:42:58,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876907111] [2022-07-21 04:42:58,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876907111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:42:58,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:42:58,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 04:42:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617504989] [2022-07-21 04:42:58,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:42:58,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:42:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:42:58,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:42:58,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:42:58,322 INFO L87 Difference]: Start difference. First operand 20751 states and 35092 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:42:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:42:59,715 INFO L93 Difference]: Finished difference Result 39360 states and 66767 transitions. [2022-07-21 04:42:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:42:59,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2022-07-21 04:42:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:42:59,764 INFO L225 Difference]: With dead ends: 39360 [2022-07-21 04:42:59,764 INFO L226 Difference]: Without dead ends: 20909 [2022-07-21 04:42:59,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:42:59,787 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 827 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:42:59,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1270 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:42:59,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20909 states. [2022-07-21 04:43:00,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20909 to 20751. [2022-07-21 04:43:00,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20751 states, 19797 states have (on average 1.6643935949891397) internal successors, (32950), 19801 states have internal predecessors, (32950), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2022-07-21 04:43:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20751 states to 20751 states and 34826 transitions. [2022-07-21 04:43:00,486 INFO L78 Accepts]: Start accepts. Automaton has 20751 states and 34826 transitions. Word has length 112 [2022-07-21 04:43:00,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:00,486 INFO L495 AbstractCegarLoop]: Abstraction has 20751 states and 34826 transitions. [2022-07-21 04:43:00,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:00,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20751 states and 34826 transitions. [2022-07-21 04:43:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 04:43:00,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:00,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:00,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:43:00,514 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:00,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:00,514 INFO L85 PathProgramCache]: Analyzing trace with hash 313759510, now seen corresponding path program 1 times [2022-07-21 04:43:00,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:00,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132332086] [2022-07-21 04:43:00,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:00,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 04:43:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:43:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:43:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:43:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:43:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:43:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:43:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:43:00,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:00,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132332086] [2022-07-21 04:43:00,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132332086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:00,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:00,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:43:00,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369530684] [2022-07-21 04:43:00,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:00,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:43:00,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:00,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:43:00,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:43:00,577 INFO L87 Difference]: Start difference. First operand 20751 states and 34826 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:02,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:02,301 INFO L93 Difference]: Finished difference Result 57235 states and 96328 transitions. [2022-07-21 04:43:02,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:43:02,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-07-21 04:43:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:02,393 INFO L225 Difference]: With dead ends: 57235 [2022-07-21 04:43:02,393 INFO L226 Difference]: Without dead ends: 38688 [2022-07-21 04:43:02,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:43:02,415 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 604 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:02,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 866 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 04:43:02,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38688 states. [2022-07-21 04:43:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38688 to 38530. [2022-07-21 04:43:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38530 states, 36778 states have (on average 1.6499265865463049) internal successors, (60681), 36782 states have internal predecessors, (60681), 1735 states have call successors, (1735), 14 states have call predecessors, (1735), 16 states have return successors, (1737), 1733 states have call predecessors, (1737), 1734 states have call successors, (1737) [2022-07-21 04:43:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38530 states to 38530 states and 64153 transitions. [2022-07-21 04:43:03,634 INFO L78 Accepts]: Start accepts. Automaton has 38530 states and 64153 transitions. Word has length 113 [2022-07-21 04:43:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:03,635 INFO L495 AbstractCegarLoop]: Abstraction has 38530 states and 64153 transitions. [2022-07-21 04:43:03,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand 38530 states and 64153 transitions. [2022-07-21 04:43:03,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 04:43:03,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:03,669 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:03,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:43:03,671 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash -45501989, now seen corresponding path program 1 times [2022-07-21 04:43:03,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:03,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386878099] [2022-07-21 04:43:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:03,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 04:43:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:43:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:43:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:43:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:43:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:43:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 04:43:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:43:03,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:03,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386878099] [2022-07-21 04:43:03,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386878099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:03,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:03,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:43:03,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887167049] [2022-07-21 04:43:03,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:03,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:43:03,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:03,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:43:03,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:43:03,729 INFO L87 Difference]: Start difference. First operand 38530 states and 64153 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:06,421 INFO L93 Difference]: Finished difference Result 73278 states and 121942 transitions. [2022-07-21 04:43:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:43:06,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 114 [2022-07-21 04:43:06,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:06,605 INFO L225 Difference]: With dead ends: 73278 [2022-07-21 04:43:06,605 INFO L226 Difference]: Without dead ends: 73146 [2022-07-21 04:43:06,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:43:06,627 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 601 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:06,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 869 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 04:43:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73146 states. [2022-07-21 04:43:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73146 to 72988. [2022-07-21 04:43:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72988 states, 69667 states have (on average 1.6333988832589317) internal successors, (113794), 69671 states have internal predecessors, (113794), 3304 states have call successors, (3304), 14 states have call predecessors, (3304), 16 states have return successors, (3306), 3302 states have call predecessors, (3306), 3303 states have call successors, (3306) [2022-07-21 04:43:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72988 states to 72988 states and 120404 transitions. [2022-07-21 04:43:09,416 INFO L78 Accepts]: Start accepts. Automaton has 72988 states and 120404 transitions. Word has length 114 [2022-07-21 04:43:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:09,417 INFO L495 AbstractCegarLoop]: Abstraction has 72988 states and 120404 transitions. [2022-07-21 04:43:09,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 72988 states and 120404 transitions. [2022-07-21 04:43:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 04:43:09,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:09,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:09,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:43:09,463 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:09,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:09,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1835744788, now seen corresponding path program 1 times [2022-07-21 04:43:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:09,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116379475] [2022-07-21 04:43:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:43:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:43:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:43:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:43:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:43:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:43:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 04:43:09,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:09,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116379475] [2022-07-21 04:43:09,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116379475] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:09,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772265717] [2022-07-21 04:43:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:09,652 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:43:09,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 04:43:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:09,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 04:43:09,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-21 04:43:10,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:10,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772265717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:10,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:10,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-07-21 04:43:10,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343203908] [2022-07-21 04:43:10,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:10,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:43:10,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:43:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-07-21 04:43:10,063 INFO L87 Difference]: Start difference. First operand 72988 states and 120404 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-21 04:43:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:12,268 INFO L93 Difference]: Finished difference Result 73402 states and 121015 transitions. [2022-07-21 04:43:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 04:43:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 115 [2022-07-21 04:43:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:12,471 INFO L225 Difference]: With dead ends: 73402 [2022-07-21 04:43:12,471 INFO L226 Difference]: Without dead ends: 73276 [2022-07-21 04:43:12,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2022-07-21 04:43:12,495 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 762 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:12,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 3547 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 04:43:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73276 states. [2022-07-21 04:43:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73276 to 73171. [2022-07-21 04:43:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73171 states, 69803 states have (on average 1.6329384123891524) internal successors, (113984), 69809 states have internal predecessors, (113984), 3337 states have call successors, (3337), 25 states have call predecessors, (3337), 30 states have return successors, (3359), 3336 states have call predecessors, (3359), 3335 states have call successors, (3359) [2022-07-21 04:43:15,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73171 states to 73171 states and 120680 transitions. [2022-07-21 04:43:15,158 INFO L78 Accepts]: Start accepts. Automaton has 73171 states and 120680 transitions. Word has length 115 [2022-07-21 04:43:15,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:15,159 INFO L495 AbstractCegarLoop]: Abstraction has 73171 states and 120680 transitions. [2022-07-21 04:43:15,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-21 04:43:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 73171 states and 120680 transitions. [2022-07-21 04:43:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:43:15,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:15,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:15,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 04:43:15,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:15,448 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1920780429, now seen corresponding path program 1 times [2022-07-21 04:43:15,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:15,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071338881] [2022-07-21 04:43:15,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:15,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:43:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:43:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:43:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:43:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:43:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:43:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 04:43:15,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071338881] [2022-07-21 04:43:15,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071338881] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014190403] [2022-07-21 04:43:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:15,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:15,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:15,647 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:43:15,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 04:43:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:15,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 04:43:15,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-21 04:43:16,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:16,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014190403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:16,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:16,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-07-21 04:43:16,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69966872] [2022-07-21 04:43:16,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:16,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:43:16,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:16,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:43:16,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-07-21 04:43:16,074 INFO L87 Difference]: Start difference. First operand 73171 states and 120680 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-21 04:43:18,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:18,569 INFO L93 Difference]: Finished difference Result 73550 states and 121240 transitions. [2022-07-21 04:43:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 04:43:18,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 116 [2022-07-21 04:43:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:18,739 INFO L225 Difference]: With dead ends: 73550 [2022-07-21 04:43:18,739 INFO L226 Difference]: Without dead ends: 73250 [2022-07-21 04:43:18,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=1602, Unknown=0, NotChecked=0, Total=1806 [2022-07-21 04:43:18,767 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 725 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:18,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 3722 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 04:43:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73250 states. [2022-07-21 04:43:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73250 to 73171. [2022-07-21 04:43:21,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73171 states, 69803 states have (on average 1.6329097603254874) internal successors, (113982), 69809 states have internal predecessors, (113982), 3337 states have call successors, (3337), 25 states have call predecessors, (3337), 30 states have return successors, (3359), 3336 states have call predecessors, (3359), 3335 states have call successors, (3359) [2022-07-21 04:43:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73171 states to 73171 states and 120678 transitions. [2022-07-21 04:43:21,495 INFO L78 Accepts]: Start accepts. Automaton has 73171 states and 120678 transitions. Word has length 116 [2022-07-21 04:43:21,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:21,503 INFO L495 AbstractCegarLoop]: Abstraction has 73171 states and 120678 transitions. [2022-07-21 04:43:21,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-21 04:43:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 73171 states and 120678 transitions. [2022-07-21 04:43:21,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:43:21,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:21,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:21,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 04:43:21,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:21,766 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:21,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:21,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1495274072, now seen corresponding path program 1 times [2022-07-21 04:43:21,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:21,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77069145] [2022-07-21 04:43:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:21,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:43:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:43:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:43:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:43:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:43:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:43:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:43:21,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77069145] [2022-07-21 04:43:21,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77069145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:21,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:21,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 04:43:21,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909879933] [2022-07-21 04:43:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:21,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 04:43:21,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 04:43:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:43:21,932 INFO L87 Difference]: Start difference. First operand 73171 states and 120678 transitions. Second operand has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 10 states have internal predecessors, (82), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2022-07-21 04:43:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:26,372 INFO L93 Difference]: Finished difference Result 74270 states and 122538 transitions. [2022-07-21 04:43:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-21 04:43:26,372 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 10 states have internal predecessors, (82), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 116 [2022-07-21 04:43:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:26,577 INFO L225 Difference]: With dead ends: 74270 [2022-07-21 04:43:26,577 INFO L226 Difference]: Without dead ends: 73954 [2022-07-21 04:43:26,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1660, Unknown=0, NotChecked=0, Total=1980 [2022-07-21 04:43:26,602 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1019 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 4953 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 4953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:26,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1864 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 4953 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 04:43:26,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73954 states. [2022-07-21 04:43:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73954 to 73402. [2022-07-21 04:43:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73402 states, 69961 states have (on average 1.6321664927602522) internal successors, (114188), 69971 states have internal predecessors, (114188), 3402 states have call successors, (3402), 29 states have call predecessors, (3402), 38 states have return successors, (3461), 3401 states have call predecessors, (3461), 3396 states have call successors, (3461) [2022-07-21 04:43:29,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73402 states to 73402 states and 121051 transitions. [2022-07-21 04:43:29,239 INFO L78 Accepts]: Start accepts. Automaton has 73402 states and 121051 transitions. Word has length 116 [2022-07-21 04:43:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:29,240 INFO L495 AbstractCegarLoop]: Abstraction has 73402 states and 121051 transitions. [2022-07-21 04:43:29,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 10 states have internal predecessors, (82), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2022-07-21 04:43:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 73402 states and 121051 transitions. [2022-07-21 04:43:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:43:29,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:29,294 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:29,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 04:43:29,295 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash -372987039, now seen corresponding path program 1 times [2022-07-21 04:43:29,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:29,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906531387] [2022-07-21 04:43:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:29,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:43:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:43:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:43:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:43:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:43:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:43:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:43:29,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:29,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906531387] [2022-07-21 04:43:29,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906531387] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:29,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863604293] [2022-07-21 04:43:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:29,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:29,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:29,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:43:29,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 04:43:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:29,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-21 04:43:29,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-21 04:43:29,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:29,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863604293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:29,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:29,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2022-07-21 04:43:29,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904991893] [2022-07-21 04:43:29,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:29,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:43:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:43:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:43:29,684 INFO L87 Difference]: Start difference. First operand 73402 states and 121051 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:32,202 INFO L93 Difference]: Finished difference Result 74095 states and 122129 transitions. [2022-07-21 04:43:32,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:43:32,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2022-07-21 04:43:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:32,364 INFO L225 Difference]: With dead ends: 74095 [2022-07-21 04:43:32,364 INFO L226 Difference]: Without dead ends: 73846 [2022-07-21 04:43:32,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:43:32,390 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 563 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:32,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1917 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 04:43:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73846 states. [2022-07-21 04:43:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73846 to 73621. [2022-07-21 04:43:34,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73621 states, 70125 states have (on average 1.6315579322638145) internal successors, (114413), 70136 states have internal predecessors, (114413), 3445 states have call successors, (3445), 40 states have call predecessors, (3445), 50 states have return successors, (3502), 3444 states have call predecessors, (3502), 3436 states have call successors, (3502) [2022-07-21 04:43:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73621 states to 73621 states and 121360 transitions. [2022-07-21 04:43:35,050 INFO L78 Accepts]: Start accepts. Automaton has 73621 states and 121360 transitions. Word has length 116 [2022-07-21 04:43:35,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:35,050 INFO L495 AbstractCegarLoop]: Abstraction has 73621 states and 121360 transitions. [2022-07-21 04:43:35,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:35,051 INFO L276 IsEmpty]: Start isEmpty. Operand 73621 states and 121360 transitions. [2022-07-21 04:43:35,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 04:43:35,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:35,313 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:43:35,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 04:43:35,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:35,532 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:35,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:35,533 INFO L85 PathProgramCache]: Analyzing trace with hash 978170001, now seen corresponding path program 1 times [2022-07-21 04:43:35,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:35,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480157135] [2022-07-21 04:43:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:35,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 04:43:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 04:43:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:43:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:43:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:43:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:43:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:43:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 04:43:35,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:35,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480157135] [2022-07-21 04:43:35,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480157135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:35,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:35,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 04:43:35,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738752115] [2022-07-21 04:43:35,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:35,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:43:35,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:43:35,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:43:35,621 INFO L87 Difference]: Start difference. First operand 73621 states and 121360 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 04:43:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:41,647 INFO L93 Difference]: Finished difference Result 147255 states and 243257 transitions. [2022-07-21 04:43:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-21 04:43:41,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-07-21 04:43:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:42,090 INFO L225 Difference]: With dead ends: 147255 [2022-07-21 04:43:42,090 INFO L226 Difference]: Without dead ends: 146530 [2022-07-21 04:43:42,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=375, Invalid=1185, Unknown=0, NotChecked=0, Total=1560 [2022-07-21 04:43:42,143 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1416 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:42,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 1057 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:43:42,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146530 states.