./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product26.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_spec11_product26.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 f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:44:04,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:44:04,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:44:04,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:44:04,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:44:04,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:44:04,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:44:04,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:44:04,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:44:04,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:44:04,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:44:04,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:44:04,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:44:04,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:44:04,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:44:04,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:44:04,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:44:04,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:44:04,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:44:04,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:44:04,893 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:44:04,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:44:04,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:44:04,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:44:04,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:44:04,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:44:04,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:44:04,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:44:04,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:44:04,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:44:04,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:44:04,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:44:04,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:44:04,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:44:04,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:44:04,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:44:04,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:44:04,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:44:04,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:44:04,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:44:04,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:44:04,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:44:04,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:44:04,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:44:04,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:44:04,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:44:04,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:44:04,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:44:04,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:44:04,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:44:04,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:44:04,961 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:44:04,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:44:04,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:44:04,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:44:04,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:44:04,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:44:04,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:44:04,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:44:04,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:44:04,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:44:04,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:44:04,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:44:04,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:44:04,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:44:04,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:44:04,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:44:04,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:44:04,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:44:04,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:44:04,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:44:04,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:44:04,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:44:04,966 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:44:04,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:44:04,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:44:04,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 [2022-07-21 04:44:05,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:44:05,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:44:05,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:44:05,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:44:05,325 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:44:05,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-07-21 04:44:05,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0902e70e4/91aa540cb275410dbaa5c4d02d8a870d/FLAG640c36a35 [2022-07-21 04:44:05,971 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:44:05,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-07-21 04:44:05,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0902e70e4/91aa540cb275410dbaa5c4d02d8a870d/FLAG640c36a35 [2022-07-21 04:44:06,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0902e70e4/91aa540cb275410dbaa5c4d02d8a870d [2022-07-21 04:44:06,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:44:06,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:44:06,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:44:06,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:44:06,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:44:06,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:44:06" (1/1) ... [2022-07-21 04:44:06,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1829ce9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:06, skipping insertion in model container [2022-07-21 04:44:06,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:44:06" (1/1) ... [2022-07-21 04:44:06,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:44:06,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:44:07,379 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_spec11_product26.cil.c[63627,63640] [2022-07-21 04:44:07,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:44:07,402 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:44:07,488 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_spec11_product26.cil.c[63627,63640] [2022-07-21 04:44:07,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:44:07,517 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:44:07,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07 WrapperNode [2022-07-21 04:44:07,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:44:07,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:44:07,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:44:07,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:44:07,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,620 INFO L137 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1089 [2022-07-21 04:44:07,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:44:07,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:44:07,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:44:07,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:44:07,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:44:07,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:44:07,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:44:07,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:44:07,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (1/1) ... [2022-07-21 04:44:07,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:44:07,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:07,763 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 04:44:07,775 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 04:44:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-21 04:44:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-21 04:44:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-21 04:44:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-21 04:44:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-21 04:44:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-21 04:44:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-21 04:44:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-21 04:44:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-21 04:44:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-21 04:44:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:44:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:44:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-21 04:44:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-21 04:44:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-21 04:44:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-21 04:44:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-21 04:44:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-21 04:44:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-21 04:44:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-21 04:44:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-21 04:44:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-21 04:44:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-21 04:44:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-21 04:44:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-21 04:44:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-21 04:44:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-21 04:44:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-21 04:44:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-21 04:44:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:44:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-21 04:44:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-21 04:44:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-21 04:44:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-21 04:44:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-21 04:44:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-21 04:44:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-21 04:44:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-21 04:44:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-21 04:44:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-21 04:44:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-21 04:44:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-21 04:44:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-21 04:44:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-21 04:44:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-21 04:44:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-21 04:44:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:44:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-21 04:44:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-21 04:44:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-21 04:44:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-21 04:44:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:44:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:44:08,082 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:44:08,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:44:08,894 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:44:08,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:44:08,910 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:44:08,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:44:08 BoogieIcfgContainer [2022-07-21 04:44:08,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:44:08,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:44:08,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:44:08,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:44:08,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:44:06" (1/3) ... [2022-07-21 04:44:08,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179bd37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:44:08, skipping insertion in model container [2022-07-21 04:44:08,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:07" (2/3) ... [2022-07-21 04:44:08,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179bd37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:44:08, skipping insertion in model container [2022-07-21 04:44:08,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:44:08" (3/3) ... [2022-07-21 04:44:08,938 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2022-07-21 04:44:08,951 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:44:08,951 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:44:09,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:44:09,017 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@30807a72, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2feca28e [2022-07-21 04:44:09,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:44:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-07-21 04:44:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 04:44:09,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:09,061 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:44:09,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:09,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1610295200, now seen corresponding path program 1 times [2022-07-21 04:44:09,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:09,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604888010] [2022-07-21 04:44:09,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:09,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:44:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:44:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:44:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:44:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:44:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-21 04:44:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:09,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604888010] [2022-07-21 04:44:09,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604888010] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:09,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80300820] [2022-07-21 04:44:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:09,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:09,579 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 04:44:09,581 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 04:44:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:09,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 04:44:09,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 04:44:09,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:09,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80300820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:09,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:09,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-21 04:44:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143294641] [2022-07-21 04:44:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:09,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 04:44:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:09,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 04:44:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:09,952 INFO L87 Difference]: Start difference. First operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:10,020 INFO L93 Difference]: Finished difference Result 602 states and 904 transitions. [2022-07-21 04:44:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 04:44:10,022 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-07-21 04:44:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:10,035 INFO L225 Difference]: With dead ends: 602 [2022-07-21 04:44:10,036 INFO L226 Difference]: Without dead ends: 393 [2022-07-21 04:44:10,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 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 04:44:10,045 INFO L413 NwaCegarLoop]: 607 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, 607 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 04:44:10,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-21 04:44:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-07-21 04:44:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 306 states have (on average 1.5555555555555556) internal successors, (476), 310 states have internal predecessors, (476), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-21 04:44:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 599 transitions. [2022-07-21 04:44:10,113 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 599 transitions. Word has length 118 [2022-07-21 04:44:10,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:10,115 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 599 transitions. [2022-07-21 04:44:10,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 599 transitions. [2022-07-21 04:44:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 04:44:10,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:10,125 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 04:44:10,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 04:44:10,329 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 04:44:10,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:10,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 456341352, now seen corresponding path program 1 times [2022-07-21 04:44:10,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:10,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772806166] [2022-07-21 04:44:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:10,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:44:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:44:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:44:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:44:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:44:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:44:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 04:44:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:10,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772806166] [2022-07-21 04:44:10,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772806166] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:10,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693887159] [2022-07-21 04:44:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:10,544 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 04:44:10,574 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 04:44:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 04:44:10,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-21 04:44:10,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:10,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693887159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:10,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:10,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:44:10,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314607856] [2022-07-21 04:44:10,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:10,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:44:10,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:10,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:44:10,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:10,932 INFO L87 Difference]: Start difference. First operand 393 states and 599 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:10,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:10,979 INFO L93 Difference]: Finished difference Result 592 states and 882 transitions. [2022-07-21 04:44:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:44:10,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2022-07-21 04:44:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:10,984 INFO L225 Difference]: With dead ends: 592 [2022-07-21 04:44:10,985 INFO L226 Difference]: Without dead ends: 396 [2022-07-21 04:44:10,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:10,989 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 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 04:44:10,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-21 04:44:11,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2022-07-21 04:44:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 308 states have (on average 1.551948051948052) internal successors, (478), 312 states have internal predecessors, (478), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-21 04:44:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 601 transitions. [2022-07-21 04:44:11,032 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 601 transitions. Word has length 138 [2022-07-21 04:44:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:11,032 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 601 transitions. [2022-07-21 04:44:11,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 601 transitions. [2022-07-21 04:44:11,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 04:44:11,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:11,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:11,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-21 04:44:11,239 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 04:44:11,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:11,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:11,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2029021959, now seen corresponding path program 1 times [2022-07-21 04:44:11,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:11,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101421087] [2022-07-21 04:44:11,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:11,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:44:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:44:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:44:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:44:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:44:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:44:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:44:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:44:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 04:44:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-21 04:44:11,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:11,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101421087] [2022-07-21 04:44:11,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101421087] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:11,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397425623] [2022-07-21 04:44:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:11,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:11,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:11,409 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 04:44:11,419 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 04:44:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:44:11,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-21 04:44:11,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:11,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397425623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:11,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:11,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:44:11,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127204086] [2022-07-21 04:44:11,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:11,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:44:11,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:44:11,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:11,736 INFO L87 Difference]: Start difference. First operand 395 states and 601 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:11,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:11,778 INFO L93 Difference]: Finished difference Result 843 states and 1302 transitions. [2022-07-21 04:44:11,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:44:11,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-07-21 04:44:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:11,784 INFO L225 Difference]: With dead ends: 843 [2022-07-21 04:44:11,784 INFO L226 Difference]: Without dead ends: 475 [2022-07-21 04:44:11,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:11,798 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 142 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:11,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-07-21 04:44:11,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2022-07-21 04:44:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 366 states have (on average 1.5710382513661203) internal successors, (575), 370 states have internal predecessors, (575), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-07-21 04:44:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 726 transitions. [2022-07-21 04:44:11,832 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 726 transitions. Word has length 147 [2022-07-21 04:44:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:11,832 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 726 transitions. [2022-07-21 04:44:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 726 transitions. [2022-07-21 04:44:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 04:44:11,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:11,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:11,884 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 04:44:12,068 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 04:44:12,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1882243221, now seen corresponding path program 1 times [2022-07-21 04:44:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:12,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670687815] [2022-07-21 04:44:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:44:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:44:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:44:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:44:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:44:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:44:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:44:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:44:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 04:44:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-21 04:44:12,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:12,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670687815] [2022-07-21 04:44:12,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670687815] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:12,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103511174] [2022-07-21 04:44:12,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:12,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:12,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:12,212 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 04:44:12,240 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 04:44:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:12,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 04:44:12,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 04:44:12,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:12,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103511174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:12,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:12,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-21 04:44:12,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323895029] [2022-07-21 04:44:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:12,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:44:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:44:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:12,578 INFO L87 Difference]: Start difference. First operand 467 states and 726 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 04:44:12,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:12,673 INFO L93 Difference]: Finished difference Result 925 states and 1442 transitions. [2022-07-21 04:44:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:44:12,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2022-07-21 04:44:12,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:12,680 INFO L225 Difference]: With dead ends: 925 [2022-07-21 04:44:12,680 INFO L226 Difference]: Without dead ends: 469 [2022-07-21 04:44:12,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:12,685 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 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 04:44:12,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:12,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-21 04:44:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-07-21 04:44:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 367 states have (on average 1.569482288828338) internal successors, (576), 372 states have internal predecessors, (576), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2022-07-21 04:44:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 729 transitions. [2022-07-21 04:44:12,734 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 729 transitions. Word has length 148 [2022-07-21 04:44:12,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:12,735 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 729 transitions. [2022-07-21 04:44:12,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 04:44:12,736 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 729 transitions. [2022-07-21 04:44:12,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-21 04:44:12,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:12,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 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 04:44:12,769 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 04:44:12,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:12,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:12,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:12,956 INFO L85 PathProgramCache]: Analyzing trace with hash 766121849, now seen corresponding path program 1 times [2022-07-21 04:44:12,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:12,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667218912] [2022-07-21 04:44:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:12,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 04:44:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:44:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:44:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:44:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:44:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:44:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:44:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:44:13,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:13,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667218912] [2022-07-21 04:44:13,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667218912] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:13,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11061561] [2022-07-21 04:44:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:13,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:13,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:13,140 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 04:44:13,161 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 04:44:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 04:44:13,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 04:44:13,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:13,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11061561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:13,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:13,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-21 04:44:13,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383554576] [2022-07-21 04:44:13,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:13,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:44:13,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:13,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:44:13,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:44:13,494 INFO L87 Difference]: Start difference. First operand 469 states and 729 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:44:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:13,557 INFO L93 Difference]: Finished difference Result 927 states and 1447 transitions. [2022-07-21 04:44:13,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:44:13,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-07-21 04:44:13,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:13,562 INFO L225 Difference]: With dead ends: 927 [2022-07-21 04:44:13,562 INFO L226 Difference]: Without dead ends: 471 [2022-07-21 04:44:13,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:44:13,565 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:13,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-07-21 04:44:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-07-21 04:44:13,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-07-21 04:44:13,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 735 transitions. [2022-07-21 04:44:13,586 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 735 transitions. Word has length 130 [2022-07-21 04:44:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:13,586 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 735 transitions. [2022-07-21 04:44:13,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:44:13,587 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 735 transitions. [2022-07-21 04:44:13,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-21 04:44:13,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:13,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 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 04:44:13,619 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 04:44:13,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:13,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:13,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1348183497, now seen corresponding path program 1 times [2022-07-21 04:44:13,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:13,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23716782] [2022-07-21 04:44:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:13,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:44:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:44:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:44:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:44:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:44:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:44:13,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:13,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23716782] [2022-07-21 04:44:13,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23716782] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:13,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:13,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:44:13,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007417030] [2022-07-21 04:44:13,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:13,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:44:13,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:13,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:44:13,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:13,930 INFO L87 Difference]: Start difference. First operand 471 states and 735 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:44:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:16,055 INFO L93 Difference]: Finished difference Result 1099 states and 1744 transitions. [2022-07-21 04:44:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:44:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-07-21 04:44:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:16,061 INFO L225 Difference]: With dead ends: 1099 [2022-07-21 04:44:16,061 INFO L226 Difference]: Without dead ends: 651 [2022-07-21 04:44:16,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:44:16,064 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 1488 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:16,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1734 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 04:44:16,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-07-21 04:44:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 471. [2022-07-21 04:44:16,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2022-07-21 04:44:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 734 transitions. [2022-07-21 04:44:16,112 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 734 transitions. Word has length 131 [2022-07-21 04:44:16,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:16,112 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 734 transitions. [2022-07-21 04:44:16,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:44:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 734 transitions. [2022-07-21 04:44:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-21 04:44:16,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:16,116 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 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 04:44:16,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:44:16,116 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:16,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:16,117 INFO L85 PathProgramCache]: Analyzing trace with hash -995312525, now seen corresponding path program 2 times [2022-07-21 04:44:16,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:16,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968267654] [2022-07-21 04:44:16,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:16,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:44:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:44:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:44:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:44:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:44:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:44:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:44:16,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:16,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968267654] [2022-07-21 04:44:16,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968267654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:16,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:16,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:44:16,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636033031] [2022-07-21 04:44:16,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:16,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:44:16,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:16,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:44:16,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:16,229 INFO L87 Difference]: Start difference. First operand 471 states and 734 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:44:18,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:18,278 INFO L93 Difference]: Finished difference Result 1101 states and 1747 transitions. [2022-07-21 04:44:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:44:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2022-07-21 04:44:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:18,283 INFO L225 Difference]: With dead ends: 1101 [2022-07-21 04:44:18,284 INFO L226 Difference]: Without dead ends: 653 [2022-07-21 04:44:18,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:44:18,286 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 1464 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:18,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1732 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 04:44:18,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-21 04:44:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 473. [2022-07-21 04:44:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2022-07-21 04:44:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 737 transitions. [2022-07-21 04:44:18,321 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 737 transitions. Word has length 132 [2022-07-21 04:44:18,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:18,323 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 737 transitions. [2022-07-21 04:44:18,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:44:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 737 transitions. [2022-07-21 04:44:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 04:44:18,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:18,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:18,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:44:18,327 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:18,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1803244692, now seen corresponding path program 1 times [2022-07-21 04:44:18,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:18,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686559789] [2022-07-21 04:44:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:18,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:44:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:44:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:44:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:44:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:44:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:44:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:44:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 04:44:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:18,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:18,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686559789] [2022-07-21 04:44:18,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686559789] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:18,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:18,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:44:18,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47084795] [2022-07-21 04:44:18,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:18,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:44:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:18,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:44:18,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:18,532 INFO L87 Difference]: Start difference. First operand 473 states and 737 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-21 04:44:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:21,069 INFO L93 Difference]: Finished difference Result 1099 states and 1742 transitions. [2022-07-21 04:44:21,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:44:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 152 [2022-07-21 04:44:21,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:21,075 INFO L225 Difference]: With dead ends: 1099 [2022-07-21 04:44:21,075 INFO L226 Difference]: Without dead ends: 653 [2022-07-21 04:44:21,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:44:21,080 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1637 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 5047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:21,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 2106 Invalid, 5047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 04:44:21,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-21 04:44:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 473. [2022-07-21 04:44:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-07-21 04:44:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 736 transitions. [2022-07-21 04:44:21,117 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 736 transitions. Word has length 152 [2022-07-21 04:44:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 736 transitions. [2022-07-21 04:44:21,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-21 04:44:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 736 transitions. [2022-07-21 04:44:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 04:44:21,120 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:21,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:21,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:44:21,121 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:21,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2026345302, now seen corresponding path program 2 times [2022-07-21 04:44:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:21,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285530381] [2022-07-21 04:44:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:21,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:44:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:44:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:44:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:44:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:44:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:44:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:44:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 04:44:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:21,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:21,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285530381] [2022-07-21 04:44:21,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285530381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:21,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:21,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:44:21,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359576969] [2022-07-21 04:44:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:21,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:44:21,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:21,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:44:21,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:21,298 INFO L87 Difference]: Start difference. First operand 473 states and 736 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-21 04:44:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:24,116 INFO L93 Difference]: Finished difference Result 1101 states and 1748 transitions. [2022-07-21 04:44:24,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:44:24,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 153 [2022-07-21 04:44:24,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:24,121 INFO L225 Difference]: With dead ends: 1101 [2022-07-21 04:44:24,121 INFO L226 Difference]: Without dead ends: 655 [2022-07-21 04:44:24,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:44:24,125 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 1640 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4419 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 4419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:24,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 2107 Invalid, 5078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 4419 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 04:44:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-07-21 04:44:24,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 475. [2022-07-21 04:44:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 370 states have (on average 1.5648648648648649) internal successors, (579), 378 states have internal predecessors, (579), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2022-07-21 04:44:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 742 transitions. [2022-07-21 04:44:24,156 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 742 transitions. Word has length 153 [2022-07-21 04:44:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:24,158 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 742 transitions. [2022-07-21 04:44:24,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-21 04:44:24,158 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 742 transitions. [2022-07-21 04:44:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-21 04:44:24,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:24,161 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:24,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:44:24,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1436170559, now seen corresponding path program 1 times [2022-07-21 04:44:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:24,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979219284] [2022-07-21 04:44:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:24,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:44:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:44:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:44:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:44:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:44:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 04:44:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 04:44:24,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:24,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979219284] [2022-07-21 04:44:24,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979219284] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:24,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499295937] [2022-07-21 04:44:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:24,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:24,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:24,319 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 04:44:24,324 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 04:44:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:24,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:44:24,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:24,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:44:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:24,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499295937] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:44:24,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:44:24,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-21 04:44:24,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394283423] [2022-07-21 04:44:24,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:44:24,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 04:44:24,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:24,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 04:44:24,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:44:24,694 INFO L87 Difference]: Start difference. First operand 475 states and 742 transitions. Second operand has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-21 04:44:28,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:28,302 INFO L93 Difference]: Finished difference Result 2010 states and 3386 transitions. [2022-07-21 04:44:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 04:44:28,303 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 135 [2022-07-21 04:44:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:28,321 INFO L225 Difference]: With dead ends: 2010 [2022-07-21 04:44:28,321 INFO L226 Difference]: Without dead ends: 1566 [2022-07-21 04:44:28,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-21 04:44:28,324 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 4085 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 5302 mSolverCounterSat, 1621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 6923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1621 IncrementalHoareTripleChecker+Valid, 5302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:28,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4087 Valid, 3990 Invalid, 6923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1621 Valid, 5302 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 04:44:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-07-21 04:44:28,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 918. [2022-07-21 04:44:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 734 states have (on average 1.6144414168937329) internal successors, (1185), 742 states have internal predecessors, (1185), 155 states have call successors, (155), 24 states have call predecessors, (155), 28 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2022-07-21 04:44:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1516 transitions. [2022-07-21 04:44:28,405 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1516 transitions. Word has length 135 [2022-07-21 04:44:28,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:28,406 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1516 transitions. [2022-07-21 04:44:28,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-21 04:44:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1516 transitions. [2022-07-21 04:44:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 04:44:28,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:28,412 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:28,442 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 04:44:28,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:28,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -951969000, now seen corresponding path program 1 times [2022-07-21 04:44:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:28,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349593072] [2022-07-21 04:44:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:28,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:44:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:44:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:44:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:44:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:44:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:44:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 04:44:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:44:28,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:28,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349593072] [2022-07-21 04:44:28,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349593072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:28,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:28,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:28,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078430955] [2022-07-21 04:44:28,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:28,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:28,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:28,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:28,744 INFO L87 Difference]: Start difference. First operand 918 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:30,165 INFO L93 Difference]: Finished difference Result 2361 states and 3994 transitions. [2022-07-21 04:44:30,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:30,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-21 04:44:30,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:30,173 INFO L225 Difference]: With dead ends: 2361 [2022-07-21 04:44:30,173 INFO L226 Difference]: Without dead ends: 1521 [2022-07-21 04:44:30,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:30,177 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1476 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:30,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1570 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2022-07-21 04:44:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1333. [2022-07-21 04:44:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1070 states have (on average 1.6308411214953271) internal successors, (1745), 1078 states have internal predecessors, (1745), 234 states have call successors, (234), 24 states have call predecessors, (234), 28 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2022-07-21 04:44:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2244 transitions. [2022-07-21 04:44:30,279 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2244 transitions. Word has length 157 [2022-07-21 04:44:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:30,279 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2244 transitions. [2022-07-21 04:44:30,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2244 transitions. [2022-07-21 04:44:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 04:44:30,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:30,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:30,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:44:30,288 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:30,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:30,288 INFO L85 PathProgramCache]: Analyzing trace with hash -772100245, now seen corresponding path program 1 times [2022-07-21 04:44:30,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:30,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059278264] [2022-07-21 04:44:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:44:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:44:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:44:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:44:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:44:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 04:44:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:44:30,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:30,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059278264] [2022-07-21 04:44:30,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059278264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:30,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:30,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:30,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775224762] [2022-07-21 04:44:30,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:30,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:30,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:30,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:30,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:30,390 INFO L87 Difference]: Start difference. First operand 1333 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:31,843 INFO L93 Difference]: Finished difference Result 3400 states and 5807 transitions. [2022-07-21 04:44:31,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:31,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-21 04:44:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:31,855 INFO L225 Difference]: With dead ends: 3400 [2022-07-21 04:44:31,855 INFO L226 Difference]: Without dead ends: 2198 [2022-07-21 04:44:31,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:31,860 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1440 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:31,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1548 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2022-07-21 04:44:31,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 2010. [2022-07-21 04:44:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1628 states have (on average 1.6382063882063882) internal successors, (2667), 1636 states have internal predecessors, (2667), 353 states have call successors, (353), 24 states have call predecessors, (353), 28 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2022-07-21 04:44:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3404 transitions. [2022-07-21 04:44:32,000 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3404 transitions. Word has length 158 [2022-07-21 04:44:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:32,000 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3404 transitions. [2022-07-21 04:44:32,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3404 transitions. [2022-07-21 04:44:32,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 04:44:32,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:32,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:32,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:44:32,012 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:32,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:32,012 INFO L85 PathProgramCache]: Analyzing trace with hash 679893194, now seen corresponding path program 1 times [2022-07-21 04:44:32,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:32,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361433932] [2022-07-21 04:44:32,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:32,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:44:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:44:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:32,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:32,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361433932] [2022-07-21 04:44:32,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361433932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:32,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:32,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:32,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189634271] [2022-07-21 04:44:32,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:32,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:32,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:32,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:32,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:32,102 INFO L87 Difference]: Start difference. First operand 2010 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:33,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:33,498 INFO L93 Difference]: Finished difference Result 4985 states and 8586 transitions. [2022-07-21 04:44:33,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:33,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2022-07-21 04:44:33,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:33,515 INFO L225 Difference]: With dead ends: 4985 [2022-07-21 04:44:33,515 INFO L226 Difference]: Without dead ends: 3241 [2022-07-21 04:44:33,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:33,522 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1489 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:33,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1530 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2022-07-21 04:44:33,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3053. [2022-07-21 04:44:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2509 states have (on average 1.6440813072937426) internal successors, (4125), 2517 states have internal predecessors, (4125), 515 states have call successors, (515), 24 states have call predecessors, (515), 28 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2022-07-21 04:44:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5202 transitions. [2022-07-21 04:44:33,763 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5202 transitions. Word has length 140 [2022-07-21 04:44:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:33,764 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5202 transitions. [2022-07-21 04:44:33,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5202 transitions. [2022-07-21 04:44:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-21 04:44:33,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:33,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:33,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:44:33,781 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:33,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:33,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1921777772, now seen corresponding path program 1 times [2022-07-21 04:44:33,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:33,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410670298] [2022-07-21 04:44:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:44:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:44:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:44:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:44:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:44:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 04:44:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 04:44:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:44:33,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:33,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410670298] [2022-07-21 04:44:33,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410670298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:33,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:33,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247381099] [2022-07-21 04:44:33,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:33,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:33,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:33,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:33,916 INFO L87 Difference]: Start difference. First operand 3053 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:35,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:35,454 INFO L93 Difference]: Finished difference Result 7499 states and 13001 transitions. [2022-07-21 04:44:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:35,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2022-07-21 04:44:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:35,480 INFO L225 Difference]: With dead ends: 7499 [2022-07-21 04:44:35,481 INFO L226 Difference]: Without dead ends: 4931 [2022-07-21 04:44:35,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:35,490 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 1488 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:35,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1533 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:35,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4931 states. [2022-07-21 04:44:35,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4931 to 4743. [2022-07-21 04:44:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3954 states have (on average 1.6482043500252908) internal successors, (6517), 3962 states have internal predecessors, (6517), 760 states have call successors, (760), 24 states have call predecessors, (760), 28 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2022-07-21 04:44:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8110 transitions. [2022-07-21 04:44:35,855 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8110 transitions. Word has length 160 [2022-07-21 04:44:35,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:35,856 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 8110 transitions. [2022-07-21 04:44:35,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8110 transitions. [2022-07-21 04:44:35,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 04:44:35,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:35,879 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:35,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:44:35,880 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:35,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:35,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1589499538, now seen corresponding path program 1 times [2022-07-21 04:44:35,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:35,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274488359] [2022-07-21 04:44:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:35,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:44:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:44:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:44:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 04:44:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:44:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:44:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,035 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:36,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274488359] [2022-07-21 04:44:36,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274488359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:36,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:36,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:36,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752274086] [2022-07-21 04:44:36,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:36,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:36,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:36,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:36,039 INFO L87 Difference]: Start difference. First operand 4743 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:37,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:37,690 INFO L93 Difference]: Finished difference Result 11700 states and 20378 transitions. [2022-07-21 04:44:37,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:37,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2022-07-21 04:44:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:37,731 INFO L225 Difference]: With dead ends: 11700 [2022-07-21 04:44:37,731 INFO L226 Difference]: Without dead ends: 7774 [2022-07-21 04:44:37,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:37,745 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1435 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:37,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 1594 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:44:37,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2022-07-21 04:44:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 7586. [2022-07-21 04:44:38,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6304 states have (on average 1.6459390862944163) internal successors, (10376), 6312 states have internal predecessors, (10376), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 28 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2022-07-21 04:44:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 12999 transitions. [2022-07-21 04:44:38,306 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 12999 transitions. Word has length 142 [2022-07-21 04:44:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:38,307 INFO L495 AbstractCegarLoop]: Abstraction has 7586 states and 12999 transitions. [2022-07-21 04:44:38,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 12999 transitions. [2022-07-21 04:44:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-21 04:44:38,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:38,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:38,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:44:38,332 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1846042560, now seen corresponding path program 1 times [2022-07-21 04:44:38,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:38,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038745303] [2022-07-21 04:44:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:38,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:44:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:44:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 04:44:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:44:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:38,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:38,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038745303] [2022-07-21 04:44:38,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038745303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:38,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:38,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:38,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739081881] [2022-07-21 04:44:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:38,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:38,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:38,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:38,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:38,431 INFO L87 Difference]: Start difference. First operand 7586 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:40,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:40,394 INFO L93 Difference]: Finished difference Result 19315 states and 33654 transitions. [2022-07-21 04:44:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:40,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 143 [2022-07-21 04:44:40,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:40,443 INFO L225 Difference]: With dead ends: 19315 [2022-07-21 04:44:40,444 INFO L226 Difference]: Without dead ends: 12948 [2022-07-21 04:44:40,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:40,468 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 1469 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:40,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1545 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:44:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2022-07-21 04:44:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 12760. [2022-07-21 04:44:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10656 states have (on average 1.645927177177177) internal successors, (17539), 10664 states have internal predecessors, (17539), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 28 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2022-07-21 04:44:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21884 transitions. [2022-07-21 04:44:41,491 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21884 transitions. Word has length 143 [2022-07-21 04:44:41,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:41,491 INFO L495 AbstractCegarLoop]: Abstraction has 12760 states and 21884 transitions. [2022-07-21 04:44:41,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:44:41,492 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21884 transitions. [2022-07-21 04:44:41,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 04:44:41,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:41,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:41,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:44:41,532 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1847273904, now seen corresponding path program 1 times [2022-07-21 04:44:41,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:41,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873061995] [2022-07-21 04:44:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:41,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:44:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:44:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:44:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:44:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:44:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:44:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 04:44:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 04:44:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:44:41,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:41,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873061995] [2022-07-21 04:44:41,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873061995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:41,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:41,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:41,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385047049] [2022-07-21 04:44:41,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:41,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:41,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:41,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:41,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:41,629 INFO L87 Difference]: Start difference. First operand 12760 states and 21884 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:43,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:43,814 INFO L93 Difference]: Finished difference Result 30798 states and 53354 transitions. [2022-07-21 04:44:43,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:43,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 163 [2022-07-21 04:44:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:43,899 INFO L225 Difference]: With dead ends: 30798 [2022-07-21 04:44:43,899 INFO L226 Difference]: Without dead ends: 20261 [2022-07-21 04:44:43,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:43,936 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 1430 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:43,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1523 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2022-07-21 04:44:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 20073. [2022-07-21 04:44:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16766 states have (on average 1.6214362400095432) internal successors, (27185), 16774 states have internal predecessors, (27185), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 28 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2022-07-21 04:44:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34080 transitions. [2022-07-21 04:44:45,191 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34080 transitions. Word has length 163 [2022-07-21 04:44:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:45,191 INFO L495 AbstractCegarLoop]: Abstraction has 20073 states and 34080 transitions. [2022-07-21 04:44:45,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34080 transitions. [2022-07-21 04:44:45,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-21 04:44:45,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:45,229 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:45,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:44:45,229 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash 273368497, now seen corresponding path program 1 times [2022-07-21 04:44:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:45,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277954842] [2022-07-21 04:44:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:45,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:44:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:44:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:44:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:44:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:44:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:44:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:44:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 04:44:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:44:45,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:45,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277954842] [2022-07-21 04:44:45,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277954842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:45,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:45,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:45,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850863201] [2022-07-21 04:44:45,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:45,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:45,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:45,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:45,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:45,333 INFO L87 Difference]: Start difference. First operand 20073 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:48,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:48,238 INFO L93 Difference]: Finished difference Result 53240 states and 91888 transitions. [2022-07-21 04:44:48,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 164 [2022-07-21 04:44:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:48,381 INFO L225 Difference]: With dead ends: 53240 [2022-07-21 04:44:48,381 INFO L226 Difference]: Without dead ends: 36067 [2022-07-21 04:44:48,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:48,431 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1428 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:48,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1540 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:44:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36067 states. [2022-07-21 04:44:50,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36067 to 35879. [2022-07-21 04:44:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30122 states have (on average 1.6183188367306287) internal successors, (48747), 30130 states have internal predecessors, (48747), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 28 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2022-07-21 04:44:50,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60816 transitions. [2022-07-21 04:44:50,701 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60816 transitions. Word has length 164 [2022-07-21 04:44:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:50,701 INFO L495 AbstractCegarLoop]: Abstraction has 35879 states and 60816 transitions. [2022-07-21 04:44:50,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60816 transitions. [2022-07-21 04:44:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 04:44:50,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:50,748 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:50,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:44:50,748 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:50,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:50,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1620867094, now seen corresponding path program 1 times [2022-07-21 04:44:50,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:50,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176404458] [2022-07-21 04:44:50,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:50,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:44:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:44:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:44:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:44:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 04:44:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 04:44:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 04:44:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:44:50,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:50,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176404458] [2022-07-21 04:44:50,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176404458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:50,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:50,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:50,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512896141] [2022-07-21 04:44:50,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:50,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:50,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:50,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:50,867 INFO L87 Difference]: Start difference. First operand 35879 states and 60816 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:54,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:54,997 INFO L93 Difference]: Finished difference Result 98087 states and 168447 transitions. [2022-07-21 04:44:54,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:54,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2022-07-21 04:44:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:55,268 INFO L225 Difference]: With dead ends: 98087 [2022-07-21 04:44:55,269 INFO L226 Difference]: Without dead ends: 66064 [2022-07-21 04:44:55,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:55,371 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 1430 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:55,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1536 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:55,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66064 states. [2022-07-21 04:44:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66064 to 65876. [2022-07-21 04:44:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65876 states, 55606 states have (on average 1.6142142934215733) internal successors, (89760), 55614 states have internal predecessors, (89760), 10241 states have call successors, (10241), 24 states have call predecessors, (10241), 28 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2022-07-21 04:44:59,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65876 states to 65876 states and 111387 transitions. [2022-07-21 04:44:59,146 INFO L78 Accepts]: Start accepts. Automaton has 65876 states and 111387 transitions. Word has length 165 [2022-07-21 04:44:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 65876 states and 111387 transitions. [2022-07-21 04:44:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 04:44:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 65876 states and 111387 transitions. [2022-07-21 04:44:59,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 04:44:59,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:59,220 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:59,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 04:44:59,220 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:59,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash 125428287, now seen corresponding path program 1 times [2022-07-21 04:44:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:59,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652276305] [2022-07-21 04:44:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:44:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:44:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:44:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:44:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 04:44:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:44:59,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:59,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652276305] [2022-07-21 04:44:59,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652276305] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:59,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:59,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:59,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864025912] [2022-07-21 04:44:59,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:59,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:59,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:59,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:59,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:59,322 INFO L87 Difference]: Start difference. First operand 65876 states and 111387 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:45:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:45:05,483 INFO L93 Difference]: Finished difference Result 123748 states and 212880 transitions. [2022-07-21 04:45:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:45:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2022-07-21 04:45:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:45:05,953 INFO L225 Difference]: With dead ends: 123748 [2022-07-21 04:45:05,954 INFO L226 Difference]: Without dead ends: 123552 [2022-07-21 04:45:06,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:45:06,028 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 1478 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:45:06,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1535 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:45:06,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123552 states. [2022-07-21 04:45:12,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123552 to 123364. [2022-07-21 04:45:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123364 states, 104726 states have (on average 1.6090751102877987) internal successors, (168512), 104734 states have internal predecessors, (168512), 18609 states have call successors, (18609), 24 states have call predecessors, (18609), 28 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2022-07-21 04:45:13,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123364 states to 123364 states and 207921 transitions. [2022-07-21 04:45:13,240 INFO L78 Accepts]: Start accepts. Automaton has 123364 states and 207921 transitions. Word has length 147 [2022-07-21 04:45:13,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:45:13,240 INFO L495 AbstractCegarLoop]: Abstraction has 123364 states and 207921 transitions. [2022-07-21 04:45:13,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 04:45:13,240 INFO L276 IsEmpty]: Start isEmpty. Operand 123364 states and 207921 transitions. [2022-07-21 04:45:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 04:45:13,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:45:13,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:45:13,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 04:45:13,312 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:45:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:45:13,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1275192871, now seen corresponding path program 1 times [2022-07-21 04:45:13,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:45:13,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137337298] [2022-07-21 04:45:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:45:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:45:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:45:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:45:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:45:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:45:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:45:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:45:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:45:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:45:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:45:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:45:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:45:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 04:45:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:45:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 04:45:13,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:45:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137337298] [2022-07-21 04:45:13,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137337298] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:45:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732272187] [2022-07-21 04:45:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:13,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:45:13,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:45:13,504 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 04:45:13,505 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 04:45:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 04:45:13,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:45:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 04:45:14,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:45:14,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732272187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:45:14,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:45:14,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-07-21 04:45:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840384279] [2022-07-21 04:45:14,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:45:14,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:45:14,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:45:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:45:14,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-07-21 04:45:14,176 INFO L87 Difference]: Start difference. First operand 123364 states and 207921 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)