./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product20.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_product20.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 b9d5581bc5c458c0b8250652569dd3286beeda44b685a7a0cdda121612582c0c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:43:47,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:43:47,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:43:47,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:43:47,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:43:47,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:43:47,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:43:47,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:43:47,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:43:47,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:43:47,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:43:47,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:43:47,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:43:47,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:43:47,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:43:47,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:43:47,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:43:47,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:43:47,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:43:47,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:43:47,811 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:43:47,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:43:47,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:43:47,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:43:47,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:43:47,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:43:47,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:43:47,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:43:47,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:43:47,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:43:47,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:43:47,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:43:47,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:43:47,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:43:47,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:43:47,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:43:47,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:43:47,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:43:47,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:43:47,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:43:47,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:43:47,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:43:47,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:43:47,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:43:47,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:43:47,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:43:47,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:43:47,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:43:47,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:43:47,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:43:47,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:43:47,860 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:43:47,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:43:47,861 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:43:47,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:43:47,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:43:47,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:43:47,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:43:47,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:43:47,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:43:47,862 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:43:47,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:43:47,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:43:47,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:43:47,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:43:47,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:43:47,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:43:47,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:43:47,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:43:47,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:43:47,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:43:47,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:43:47,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:43:47,865 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:43:47,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:43:47,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:43:47,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d5581bc5c458c0b8250652569dd3286beeda44b685a7a0cdda121612582c0c [2022-07-21 04:43:48,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:43:48,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:43:48,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:43:48,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:43:48,180 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:43:48,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product20.cil.c [2022-07-21 04:43:48,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464dd042e/6e0477bf575c4f4fbd4c0411ec590615/FLAG5f99c869d [2022-07-21 04:43:48,745 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:43:48,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product20.cil.c [2022-07-21 04:43:48,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464dd042e/6e0477bf575c4f4fbd4c0411ec590615/FLAG5f99c869d [2022-07-21 04:43:49,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464dd042e/6e0477bf575c4f4fbd4c0411ec590615 [2022-07-21 04:43:49,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:43:49,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:43:49,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:43:49,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:43:49,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:43:49,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df17378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49, skipping insertion in model container [2022-07-21 04:43:49,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:43:49,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:43:49,184 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_product20.cil.c[1543,1556] [2022-07-21 04:43:49,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:43:49,553 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:43:49,568 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_product20.cil.c[1543,1556] [2022-07-21 04:43:49,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:43:49,674 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:43:49,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49 WrapperNode [2022-07-21 04:43:49,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:43:49,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:43:49,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:43:49,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:43:49,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,770 INFO L137 Inliner]: procedures = 128, calls = 214, calls flagged for inlining = 54, calls inlined = 49, statements flattened = 973 [2022-07-21 04:43:49,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:43:49,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:43:49,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:43:49,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:43:49,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:43:49,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:43:49,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:43:49,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:43:49,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (1/1) ... [2022-07-21 04:43:49,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:43:49,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:49,884 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 04:43:49,904 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 04:43:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-21 04:43:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-21 04:43:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-21 04:43:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-21 04:43:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-21 04:43:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-21 04:43:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-21 04:43:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-21 04:43:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-21 04:43:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-21 04:43:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:43:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:43:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-21 04:43:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-21 04:43:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-21 04:43:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-21 04:43:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-21 04:43:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-21 04:43:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-21 04:43:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-21 04:43:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-21 04:43:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-21 04:43:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-21 04:43:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-21 04:43:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-21 04:43:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-21 04:43:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-21 04:43:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-21 04:43:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-21 04:43:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-21 04:43:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-21 04:43:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-21 04:43:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-21 04:43:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-21 04:43:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-21 04:43:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-21 04:43:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-21 04:43:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-21 04:43:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:43:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-21 04:43:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-21 04:43:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-21 04:43:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-21 04:43:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:43:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:43:50,238 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:43:50,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:43:50,817 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:43:50,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:43:50,825 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:43:50,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:43:50 BoogieIcfgContainer [2022-07-21 04:43:50,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:43:50,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:43:50,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:43:50,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:43:50,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:43:49" (1/3) ... [2022-07-21 04:43:50,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23818485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:43:50, skipping insertion in model container [2022-07-21 04:43:50,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:49" (2/3) ... [2022-07-21 04:43:50,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23818485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:43:50, skipping insertion in model container [2022-07-21 04:43:50,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:43:50" (3/3) ... [2022-07-21 04:43:50,834 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product20.cil.c [2022-07-21 04:43:50,843 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:43:50,843 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:43:50,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:43:50,905 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@536f6654, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ce55dca [2022-07-21 04:43:50,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:43:50,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 289 states have (on average 1.57439446366782) internal successors, (455), 294 states have internal predecessors, (455), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-07-21 04:43:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 04:43:50,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:50,937 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] [2022-07-21 04:43:50,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:50,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1090430228, now seen corresponding path program 1 times [2022-07-21 04:43:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:50,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583163390] [2022-07-21 04:43:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:50,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:43:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:43:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:43:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:43:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:43:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:43:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:43:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:43:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:43:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:43:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:43:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:43:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,416 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 04:43:51,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:51,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583163390] [2022-07-21 04:43:51,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583163390] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:51,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109936762] [2022-07-21 04:43:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:51,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:51,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:51,420 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 04:43:51,469 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 04:43:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:51,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 04:43:51,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:51,813 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 04:43:51,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:51,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109936762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:51,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:51,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-21 04:43:51,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420238535] [2022-07-21 04:43:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:51,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 04:43:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:51,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 04:43:51,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:43:51,856 INFO L87 Difference]: Start difference. First operand has 368 states, 289 states have (on average 1.57439446366782) internal successors, (455), 294 states have internal predecessors, (455), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 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 04:43:51,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:51,914 INFO L93 Difference]: Finished difference Result 543 states and 816 transitions. [2022-07-21 04:43:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 04:43:51,917 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 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 137 [2022-07-21 04:43:51,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:51,927 INFO L225 Difference]: With dead ends: 543 [2022-07-21 04:43:51,927 INFO L226 Difference]: Without dead ends: 361 [2022-07-21 04:43:51,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:43:51,934 INFO L413 NwaCegarLoop]: 559 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, 559 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 04:43:51,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:43:51,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-07-21 04:43:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-07-21 04:43:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 283 states have (on average 1.568904593639576) internal successors, (444), 287 states have internal predecessors, (444), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-07-21 04:43:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 551 transitions. [2022-07-21 04:43:51,988 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 551 transitions. Word has length 137 [2022-07-21 04:43:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:51,989 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 551 transitions. [2022-07-21 04:43:51,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 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 04:43:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 551 transitions. [2022-07-21 04:43:51,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 04:43:51,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:51,994 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 04:43:52,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 04:43:52,215 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 04:43:52,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:52,216 INFO L85 PathProgramCache]: Analyzing trace with hash 756418028, now seen corresponding path program 1 times [2022-07-21 04:43:52,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:52,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069962304] [2022-07-21 04:43:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:52,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:43:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:43:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:43:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:43:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:43:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:43:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:43:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:43:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:43:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:43:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:43:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:43:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:43:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,466 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 04:43:52,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:52,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069962304] [2022-07-21 04:43:52,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069962304] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:52,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567045286] [2022-07-21 04:43:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:52,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:52,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:52,484 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 04:43:52,486 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 04:43:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:52,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 04:43:52,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:52,808 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 04:43:52,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:52,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567045286] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:52,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:52,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:43:52,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279566440] [2022-07-21 04:43:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:52,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:43:52,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:52,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:43:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:43:52,811 INFO L87 Difference]: Start difference. First operand 361 states and 551 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 04:43:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:52,848 INFO L93 Difference]: Finished difference Result 533 states and 794 transitions. [2022-07-21 04:43:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:43:52,849 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 04:43:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:52,852 INFO L225 Difference]: With dead ends: 533 [2022-07-21 04:43:52,852 INFO L226 Difference]: Without dead ends: 364 [2022-07-21 04:43:52,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 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 04:43:52,854 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 1 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1096 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 04:43:52,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1096 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:43:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-07-21 04:43:52,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2022-07-21 04:43:52,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 285 states have (on average 1.5649122807017544) internal successors, (446), 289 states have internal predecessors, (446), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-07-21 04:43:52,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 553 transitions. [2022-07-21 04:43:52,872 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 553 transitions. Word has length 138 [2022-07-21 04:43:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:52,872 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 553 transitions. [2022-07-21 04:43:52,872 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 04:43:52,872 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 553 transitions. [2022-07-21 04:43:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 04:43:52,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:52,875 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 04:43:52,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 04:43:53,088 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 04:43:53,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:53,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1291502729, now seen corresponding path program 1 times [2022-07-21 04:43:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:53,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324142359] [2022-07-21 04:43:53,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:53,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:43:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:43:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:43:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:43:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:43:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:43:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:43:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:43:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:43:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:43:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:43:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:43:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 04:43:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,295 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 04:43:53,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:53,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324142359] [2022-07-21 04:43:53,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324142359] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:53,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386621692] [2022-07-21 04:43:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:53,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:53,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:53,314 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 04:43:53,343 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 04:43:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:43:53,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:53,575 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 04:43:53,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:53,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386621692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:53,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:53,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:43:53,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112805709] [2022-07-21 04:43:53,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:53,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:43:53,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:53,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:43:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:43:53,578 INFO L87 Difference]: Start difference. First operand 363 states and 553 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 04:43:53,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:53,599 INFO L93 Difference]: Finished difference Result 774 states and 1198 transitions. [2022-07-21 04:43:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:43:53,599 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 04:43:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:53,602 INFO L225 Difference]: With dead ends: 774 [2022-07-21 04:43:53,602 INFO L226 Difference]: Without dead ends: 438 [2022-07-21 04:43:53,604 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 04:43:53,605 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 134 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1075 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 04:43:53,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1075 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:43:53,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-07-21 04:43:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 430. [2022-07-21 04:43:53,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 342 states have internal predecessors, (535), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-07-21 04:43:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 670 transitions. [2022-07-21 04:43:53,639 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 670 transitions. Word has length 147 [2022-07-21 04:43:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:53,639 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 670 transitions. [2022-07-21 04:43:53,639 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 04:43:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 670 transitions. [2022-07-21 04:43:53,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-21 04:43:53,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:53,642 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 04:43:53,660 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 04:43:53,860 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 04:43:53,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash 167253923, now seen corresponding path program 1 times [2022-07-21 04:43:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:53,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962910392] [2022-07-21 04:43:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:43:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:43:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:43:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:43:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:43:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:43:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:43:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:43:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:43:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:43:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:43:53,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:53,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962910392] [2022-07-21 04:43:53,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962910392] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:53,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641276227] [2022-07-21 04:43:53,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:53,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:53,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:53,995 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 04:43:54,042 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 04:43:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 04:43:54,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:54,292 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 04:43:54,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:54,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641276227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:54,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:54,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-21 04:43:54,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924936642] [2022-07-21 04:43:54,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:54,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:43:54,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:54,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:43:54,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:43:54,294 INFO L87 Difference]: Start difference. First operand 430 states and 670 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:43:54,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:54,340 INFO L93 Difference]: Finished difference Result 851 states and 1330 transitions. [2022-07-21 04:43:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:43:54,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 129 [2022-07-21 04:43:54,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:54,343 INFO L225 Difference]: With dead ends: 851 [2022-07-21 04:43:54,343 INFO L226 Difference]: Without dead ends: 432 [2022-07-21 04:43:54,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 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 04:43:54,345 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 152 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1993 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 04:43:54,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1993 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:43:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-07-21 04:43:54,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2022-07-21 04:43:54,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 344 states have internal predecessors, (536), 68 states have call successors, (68), 23 states have call predecessors, (68), 24 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2022-07-21 04:43:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 673 transitions. [2022-07-21 04:43:54,361 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 673 transitions. Word has length 129 [2022-07-21 04:43:54,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:54,361 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 673 transitions. [2022-07-21 04:43:54,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:43:54,362 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 673 transitions. [2022-07-21 04:43:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-21 04:43:54,364 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:54,364 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 04:43:54,382 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 04:43:54,578 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 04:43:54,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2009173091, now seen corresponding path program 1 times [2022-07-21 04:43:54,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:54,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943620560] [2022-07-21 04:43:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:54,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:43:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 04:43:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:43:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:43:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:43:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:43:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:43:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:43:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:43:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:43:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,690 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 04:43:54,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:54,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943620560] [2022-07-21 04:43:54,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943620560] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:43:54,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081172884] [2022-07-21 04:43:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:54,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:43:54,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:43:54,692 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:43:54,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 04:43:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:54,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 04:43:54,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:43:54,956 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 04:43:54,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:43:54,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081172884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:54,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:43:54,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-21 04:43:54,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397594812] [2022-07-21 04:43:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:54,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:43:54,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:43:54,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:43:54,959 INFO L87 Difference]: Start difference. First operand 432 states and 673 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 04:43:55,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:55,018 INFO L93 Difference]: Finished difference Result 853 states and 1335 transitions. [2022-07-21 04:43:55,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:43:55,020 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 04:43:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:55,024 INFO L225 Difference]: With dead ends: 853 [2022-07-21 04:43:55,024 INFO L226 Difference]: Without dead ends: 434 [2022-07-21 04:43:55,026 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 04:43:55,027 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 151 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1982 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 04:43:55,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1982 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:43:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-21 04:43:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2022-07-21 04:43:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 346 states have internal predecessors, (537), 68 states have call successors, (68), 23 states have call predecessors, (68), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-07-21 04:43:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 679 transitions. [2022-07-21 04:43:55,058 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 679 transitions. Word has length 130 [2022-07-21 04:43:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:55,058 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 679 transitions. [2022-07-21 04:43:55,059 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 04:43:55,059 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 679 transitions. [2022-07-21 04:43:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-21 04:43:55,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:55,062 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 04:43:55,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 04:43:55,272 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 04:43:55,272 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:55,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash 907270775, now seen corresponding path program 1 times [2022-07-21 04:43:55,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:55,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526453112] [2022-07-21 04:43:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:55,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:43:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:43:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:43:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:43:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:43:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:43:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:43:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:43:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:43:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:43:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:55,373 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 04:43:55,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526453112] [2022-07-21 04:43:55,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526453112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:55,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:55,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:43:55,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335765838] [2022-07-21 04:43:55,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:55,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:43:55,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:55,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:43:55,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:43:55,387 INFO L87 Difference]: Start difference. First operand 434 states and 679 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 04:43:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:56,779 INFO L93 Difference]: Finished difference Result 953 states and 1514 transitions. [2022-07-21 04:43:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:43:56,779 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 04:43:56,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:56,782 INFO L225 Difference]: With dead ends: 953 [2022-07-21 04:43:56,782 INFO L226 Difference]: Without dead ends: 542 [2022-07-21 04:43:56,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:43:56,784 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 1343 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:56,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 1577 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:43:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-21 04:43:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 434. [2022-07-21 04:43:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 346 states have internal predecessors, (537), 68 states have call successors, (68), 23 states have call predecessors, (68), 25 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2022-07-21 04:43:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 678 transitions. [2022-07-21 04:43:56,805 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 678 transitions. Word has length 131 [2022-07-21 04:43:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:56,806 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 678 transitions. [2022-07-21 04:43:56,806 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 04:43:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 678 transitions. [2022-07-21 04:43:56,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-21 04:43:56,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:56,808 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 04:43:56,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:43:56,808 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:56,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:56,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1463588367, now seen corresponding path program 2 times [2022-07-21 04:43:56,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:56,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789471512] [2022-07-21 04:43:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:43:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:43:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:43:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:43:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:43:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:43:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:43:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:43:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:43:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:43:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:56,888 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 04:43:56,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:56,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789471512] [2022-07-21 04:43:56,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789471512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:56,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:56,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:43:56,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748519273] [2022-07-21 04:43:56,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:56,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:43:56,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:56,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:43:56,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:43:56,890 INFO L87 Difference]: Start difference. First operand 434 states and 678 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 04:43:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:43:58,198 INFO L93 Difference]: Finished difference Result 955 states and 1517 transitions. [2022-07-21 04:43:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:43:58,199 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 04:43:58,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:43:58,201 INFO L225 Difference]: With dead ends: 955 [2022-07-21 04:43:58,202 INFO L226 Difference]: Without dead ends: 544 [2022-07-21 04:43:58,203 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 04:43:58,203 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 1353 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:43:58,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1567 Invalid, 2339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 04:43:58,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-07-21 04:43:58,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 436. [2022-07-21 04:43:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 348 states have internal predecessors, (538), 68 states have call successors, (68), 23 states have call predecessors, (68), 26 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2022-07-21 04:43:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 681 transitions. [2022-07-21 04:43:58,226 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 681 transitions. Word has length 132 [2022-07-21 04:43:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:43:58,227 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 681 transitions. [2022-07-21 04:43:58,227 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 04:43:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 681 transitions. [2022-07-21 04:43:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-21 04:43:58,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:43:58,229 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] [2022-07-21 04:43:58,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:43:58,229 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:43:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:43:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1237275004, now seen corresponding path program 1 times [2022-07-21 04:43:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:43:58,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704133151] [2022-07-21 04:43:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:43:58,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:43:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:43:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:43:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:43:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:43:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:43:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:43:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:43:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:43:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:43:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:43:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:43:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:43:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:43:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:43:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:43:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:43:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:43:58,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704133151] [2022-07-21 04:43:58,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704133151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:43:58,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:43:58,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:43:58,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534135353] [2022-07-21 04:43:58,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:43:58,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:43:58,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:43:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:43:58,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:43:58,334 INFO L87 Difference]: Start difference. First operand 436 states and 681 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 04:44:00,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:00,125 INFO L93 Difference]: Finished difference Result 953 states and 1512 transitions. [2022-07-21 04:44:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:44:00,126 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 133 [2022-07-21 04:44:00,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:00,129 INFO L225 Difference]: With dead ends: 953 [2022-07-21 04:44:00,129 INFO L226 Difference]: Without dead ends: 544 [2022-07-21 04:44:00,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 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 04:44:00,130 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 1477 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:00,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 1934 Invalid, 3934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 04:44:00,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-07-21 04:44:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 436. [2022-07-21 04:44:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 348 states have internal predecessors, (538), 68 states have call successors, (68), 23 states have call predecessors, (68), 26 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-07-21 04:44:00,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 680 transitions. [2022-07-21 04:44:00,149 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 680 transitions. Word has length 133 [2022-07-21 04:44:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:00,149 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 680 transitions. [2022-07-21 04:44:00,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 04:44:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 680 transitions. [2022-07-21 04:44:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-21 04:44:00,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:00,152 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, 1, 1] [2022-07-21 04:44:00,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:44:00,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1357891578, now seen corresponding path program 2 times [2022-07-21 04:44:00,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:00,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752155900] [2022-07-21 04:44:00,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:00,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:44:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:44:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:44:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:44:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 04:44:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:44:00,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:00,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752155900] [2022-07-21 04:44:00,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752155900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:00,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:00,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:44:00,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905931476] [2022-07-21 04:44:00,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:00,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:44:00,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:44:00,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:00,250 INFO L87 Difference]: Start difference. First operand 436 states and 680 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 04:44:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:02,055 INFO L93 Difference]: Finished difference Result 955 states and 1518 transitions. [2022-07-21 04:44:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:44:02,056 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 134 [2022-07-21 04:44:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:02,058 INFO L225 Difference]: With dead ends: 955 [2022-07-21 04:44:02,058 INFO L226 Difference]: Without dead ends: 546 [2022-07-21 04:44:02,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 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 04:44:02,061 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1451 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3517 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 4029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 3517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:02,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 1943 Invalid, 4029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 3517 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 04:44:02,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-07-21 04:44:02,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 438. [2022-07-21 04:44:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 342 states have (on average 1.5760233918128654) internal successors, (539), 350 states have internal predecessors, (539), 68 states have call successors, (68), 23 states have call predecessors, (68), 27 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2022-07-21 04:44:02,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 686 transitions. [2022-07-21 04:44:02,082 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 686 transitions. Word has length 134 [2022-07-21 04:44:02,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:02,083 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 686 transitions. [2022-07-21 04:44:02,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 04:44:02,083 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 686 transitions. [2022-07-21 04:44:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-21 04:44:02,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:02,085 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 04:44:02,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:44:02,085 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:02,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:02,086 INFO L85 PathProgramCache]: Analyzing trace with hash 245550337, now seen corresponding path program 1 times [2022-07-21 04:44:02,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:02,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714103530] [2022-07-21 04:44:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:02,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:44:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:44:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:44:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:44:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:44:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 04:44:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,202 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 04:44:02,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:02,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714103530] [2022-07-21 04:44:02,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714103530] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:02,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974629625] [2022-07-21 04:44:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:02,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:02,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:02,204 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 04:44:02,245 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 04:44:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:02,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:44:02,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:02,470 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 04:44:02,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:44:02,564 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 04:44:02,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974629625] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:44:02,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:44:02,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-21 04:44:02,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696403081] [2022-07-21 04:44:02,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:44:02,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 04:44:02,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:02,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 04:44:02,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:44:02,566 INFO L87 Difference]: Start difference. First operand 438 states and 686 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 04:44:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:05,628 INFO L93 Difference]: Finished difference Result 1814 states and 3076 transitions. [2022-07-21 04:44:05,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 04:44:05,628 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 04:44:05,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:05,635 INFO L225 Difference]: With dead ends: 1814 [2022-07-21 04:44:05,635 INFO L226 Difference]: Without dead ends: 1407 [2022-07-21 04:44:05,636 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 04:44:05,637 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 3775 mSDsluCounter, 3531 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 1468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3777 SdHoareTripleChecker+Valid, 4349 SdHoareTripleChecker+Invalid, 6288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1468 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:05,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3777 Valid, 4349 Invalid, 6288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1468 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 04:44:05,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2022-07-21 04:44:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 856. [2022-07-21 04:44:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 681 states have (on average 1.6226138032305433) internal successors, (1105), 689 states have internal predecessors, (1105), 147 states have call successors, (147), 23 states have call predecessors, (147), 27 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2022-07-21 04:44:05,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1420 transitions. [2022-07-21 04:44:05,679 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1420 transitions. Word has length 135 [2022-07-21 04:44:05,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:05,680 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1420 transitions. [2022-07-21 04:44:05,680 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 04:44:05,680 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1420 transitions. [2022-07-21 04:44:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 04:44:05,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:05,684 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 04:44:05,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-21 04:44:05,899 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 04:44:05,900 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:05,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1787625842, now seen corresponding path program 1 times [2022-07-21 04:44:05,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:05,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461666029] [2022-07-21 04:44:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:05,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:44:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:44:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:44:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:44:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:44:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:44:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 04:44:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:05,994 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 04:44:05,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:05,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461666029] [2022-07-21 04:44:05,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461666029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:05,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:05,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:05,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119150478] [2022-07-21 04:44:05,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:05,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:05,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:05,996 INFO L87 Difference]: Start difference. First operand 856 states and 1420 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 04:44:07,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:07,245 INFO L93 Difference]: Finished difference Result 2140 states and 3644 transitions. [2022-07-21 04:44:07,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:07,246 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 04:44:07,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:07,251 INFO L225 Difference]: With dead ends: 2140 [2022-07-21 04:44:07,252 INFO L226 Difference]: Without dead ends: 1362 [2022-07-21 04:44:07,254 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 04:44:07,254 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 1308 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:07,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1426 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 04:44:07,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-07-21 04:44:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1246. [2022-07-21 04:44:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 992 states have (on average 1.6381048387096775) internal successors, (1625), 1000 states have internal predecessors, (1625), 226 states have call successors, (226), 23 states have call predecessors, (226), 27 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2022-07-21 04:44:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 2108 transitions. [2022-07-21 04:44:07,310 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 2108 transitions. Word has length 157 [2022-07-21 04:44:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:07,310 INFO L495 AbstractCegarLoop]: Abstraction has 1246 states and 2108 transitions. [2022-07-21 04:44:07,311 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 04:44:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 2108 transitions. [2022-07-21 04:44:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 04:44:07,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:07,316 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 04:44:07,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:44:07,316 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:07,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:07,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1214634807, now seen corresponding path program 1 times [2022-07-21 04:44:07,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:07,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651659572] [2022-07-21 04:44:07,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:07,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:44:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:44:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:44:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:44:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:44:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 04:44:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:07,405 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 04:44:07,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:07,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651659572] [2022-07-21 04:44:07,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651659572] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:07,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:07,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:07,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15333405] [2022-07-21 04:44:07,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:07,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:07,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:07,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:07,416 INFO L87 Difference]: Start difference. First operand 1246 states and 2108 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 04:44:08,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:08,616 INFO L93 Difference]: Finished difference Result 3114 states and 5353 transitions. [2022-07-21 04:44:08,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:08,617 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 04:44:08,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:08,625 INFO L225 Difference]: With dead ends: 3114 [2022-07-21 04:44:08,625 INFO L226 Difference]: Without dead ends: 1999 [2022-07-21 04:44:08,629 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 04:44:08,629 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 1326 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:08,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 1394 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 04:44:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2022-07-21 04:44:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1883. [2022-07-21 04:44:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1883 states, 1510 states have (on average 1.6443708609271523) internal successors, (2483), 1518 states have internal predecessors, (2483), 345 states have call successors, (345), 23 states have call predecessors, (345), 27 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2022-07-21 04:44:08,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 3204 transitions. [2022-07-21 04:44:08,719 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 3204 transitions. Word has length 158 [2022-07-21 04:44:08,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:08,735 INFO L495 AbstractCegarLoop]: Abstraction has 1883 states and 3204 transitions. [2022-07-21 04:44:08,735 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 04:44:08,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 3204 transitions. [2022-07-21 04:44:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 04:44:08,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:08,744 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 04:44:08,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:44:08,744 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:08,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1823796960, now seen corresponding path program 1 times [2022-07-21 04:44:08,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:08,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291145531] [2022-07-21 04:44:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:08,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:44:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:44:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:08,814 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 04:44:08,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:08,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291145531] [2022-07-21 04:44:08,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291145531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:08,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:08,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:08,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125759635] [2022-07-21 04:44:08,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:08,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:08,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:08,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:08,816 INFO L87 Difference]: Start difference. First operand 1883 states and 3204 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 04:44:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:09,945 INFO L93 Difference]: Finished difference Result 4594 states and 7964 transitions. [2022-07-21 04:44:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:09,945 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 04:44:09,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:09,966 INFO L225 Difference]: With dead ends: 4594 [2022-07-21 04:44:09,966 INFO L226 Difference]: Without dead ends: 2977 [2022-07-21 04:44:09,979 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 04:44:09,980 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 1306 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:09,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1396 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2022-07-21 04:44:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2861. [2022-07-21 04:44:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2326 states have (on average 1.6496130696474633) internal successors, (3837), 2334 states have internal predecessors, (3837), 507 states have call successors, (507), 23 states have call predecessors, (507), 27 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2022-07-21 04:44:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4898 transitions. [2022-07-21 04:44:10,127 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4898 transitions. Word has length 140 [2022-07-21 04:44:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:10,128 INFO L495 AbstractCegarLoop]: Abstraction has 2861 states and 4898 transitions. [2022-07-21 04:44:10,128 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 04:44:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4898 transitions. [2022-07-21 04:44:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-21 04:44:10,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:10,139 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 04:44:10,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:44:10,140 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:10,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash -892372616, now seen corresponding path program 1 times [2022-07-21 04:44:10,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:10,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182670373] [2022-07-21 04:44:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:10,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:44:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:44:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:44:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:44:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:44:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 04:44:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 04:44:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:10,220 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 04:44:10,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:10,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182670373] [2022-07-21 04:44:10,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182670373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:10,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:10,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030977386] [2022-07-21 04:44:10,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:10,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:10,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:10,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:10,222 INFO L87 Difference]: Start difference. First operand 2861 states and 4898 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 04:44:11,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:11,462 INFO L93 Difference]: Finished difference Result 6933 states and 12099 transitions. [2022-07-21 04:44:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:11,463 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 04:44:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:11,479 INFO L225 Difference]: With dead ends: 6933 [2022-07-21 04:44:11,479 INFO L226 Difference]: Without dead ends: 4557 [2022-07-21 04:44:11,484 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 04:44:11,485 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 1324 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:11,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1382 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 04:44:11,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4557 states. [2022-07-21 04:44:11,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4441. [2022-07-21 04:44:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4441 states, 3661 states have (on average 1.6533733952472003) internal successors, (6053), 3669 states have internal predecessors, (6053), 752 states have call successors, (752), 23 states have call predecessors, (752), 27 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2022-07-21 04:44:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 7630 transitions. [2022-07-21 04:44:11,709 INFO L78 Accepts]: Start accepts. Automaton has 4441 states and 7630 transitions. Word has length 160 [2022-07-21 04:44:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:11,709 INFO L495 AbstractCegarLoop]: Abstraction has 4441 states and 7630 transitions. [2022-07-21 04:44:11,709 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 04:44:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 4441 states and 7630 transitions. [2022-07-21 04:44:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 04:44:11,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:11,724 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 04:44:11,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:44:11,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:11,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash 819846340, now seen corresponding path program 1 times [2022-07-21 04:44:11,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:11,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232437155] [2022-07-21 04:44:11,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:11,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:44:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:44:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:44:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 04:44:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:44:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:44:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:11,801 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 04:44:11,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:11,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232437155] [2022-07-21 04:44:11,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232437155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:11,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:11,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:11,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338149685] [2022-07-21 04:44:11,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:11,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:11,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:11,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:11,803 INFO L87 Difference]: Start difference. First operand 4441 states and 7630 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 04:44:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:13,110 INFO L93 Difference]: Finished difference Result 11104 states and 19428 transitions. [2022-07-21 04:44:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:13,111 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 04:44:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:13,146 INFO L225 Difference]: With dead ends: 11104 [2022-07-21 04:44:13,147 INFO L226 Difference]: Without dead ends: 7400 [2022-07-21 04:44:13,158 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 04:44:13,159 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 1300 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:13,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1436 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7400 states. [2022-07-21 04:44:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7400 to 7284. [2022-07-21 04:44:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7284 states, 6011 states have (on average 1.6489768757278322) internal successors, (9912), 6019 states have internal predecessors, (9912), 1245 states have call successors, (1245), 23 states have call predecessors, (1245), 27 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2022-07-21 04:44:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7284 states to 7284 states and 12519 transitions. [2022-07-21 04:44:13,505 INFO L78 Accepts]: Start accepts. Automaton has 7284 states and 12519 transitions. Word has length 142 [2022-07-21 04:44:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:13,506 INFO L495 AbstractCegarLoop]: Abstraction has 7284 states and 12519 transitions. [2022-07-21 04:44:13,506 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 04:44:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 7284 states and 12519 transitions. [2022-07-21 04:44:13,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-21 04:44:13,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:13,526 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 04:44:13,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:44:13,526 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:13,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:13,526 INFO L85 PathProgramCache]: Analyzing trace with hash -491247104, now seen corresponding path program 1 times [2022-07-21 04:44:13,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:13,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959038268] [2022-07-21 04:44:13,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:13,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:44:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:44:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 04:44:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:44:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:13,598 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 04:44:13,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:13,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959038268] [2022-07-21 04:44:13,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959038268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:13,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:13,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796698250] [2022-07-21 04:44:13,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:13,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:13,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:13,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:13,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:13,600 INFO L87 Difference]: Start difference. First operand 7284 states and 12519 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 04:44:15,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:15,048 INFO L93 Difference]: Finished difference Result 18524 states and 32392 transitions. [2022-07-21 04:44:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:15,048 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 04:44:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:15,088 INFO L225 Difference]: With dead ends: 18524 [2022-07-21 04:44:15,088 INFO L226 Difference]: Without dead ends: 12379 [2022-07-21 04:44:15,105 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 04:44:15,106 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1299 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:15,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 1403 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2022-07-21 04:44:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12263. [2022-07-21 04:44:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12263 states, 10168 states have (on average 1.64860346184107) internal successors, (16763), 10176 states have internal predecessors, (16763), 2067 states have call successors, (2067), 23 states have call predecessors, (2067), 27 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2022-07-21 04:44:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12263 states to 12263 states and 21092 transitions. [2022-07-21 04:44:15,730 INFO L78 Accepts]: Start accepts. Automaton has 12263 states and 21092 transitions. Word has length 143 [2022-07-21 04:44:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:15,730 INFO L495 AbstractCegarLoop]: Abstraction has 12263 states and 21092 transitions. [2022-07-21 04:44:15,731 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 04:44:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 12263 states and 21092 transitions. [2022-07-21 04:44:15,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 04:44:15,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:15,759 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] [2022-07-21 04:44:15,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:44:15,760 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:15,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:15,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1813993122, now seen corresponding path program 1 times [2022-07-21 04:44:15,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55904320] [2022-07-21 04:44:15,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:15,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:44:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:44:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:44:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:44:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 04:44:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:15,911 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 04:44:15,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:15,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55904320] [2022-07-21 04:44:15,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55904320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:15,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:15,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:15,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061180183] [2022-07-21 04:44:15,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:15,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:15,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:15,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:15,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:15,913 INFO L87 Difference]: Start difference. First operand 12263 states and 21092 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 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 04:44:17,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:17,545 INFO L93 Difference]: Finished difference Result 29482 states and 51252 transitions. [2022-07-21 04:44:17,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:17,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 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 144 [2022-07-21 04:44:17,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:17,607 INFO L225 Difference]: With dead ends: 29482 [2022-07-21 04:44:17,607 INFO L226 Difference]: Without dead ends: 19332 [2022-07-21 04:44:17,634 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 04:44:17,635 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1295 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:17,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 1369 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:44:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19332 states. [2022-07-21 04:44:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19332 to 19216. [2022-07-21 04:44:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19216 states, 15918 states have (on average 1.6228797587636639) internal successors, (25833), 15926 states have internal predecessors, (25833), 3270 states have call successors, (3270), 23 states have call predecessors, (3270), 27 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2022-07-21 04:44:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19216 states to 19216 states and 32712 transitions. [2022-07-21 04:44:18,695 INFO L78 Accepts]: Start accepts. Automaton has 19216 states and 32712 transitions. Word has length 144 [2022-07-21 04:44:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:18,695 INFO L495 AbstractCegarLoop]: Abstraction has 19216 states and 32712 transitions. [2022-07-21 04:44:18,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 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 04:44:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19216 states and 32712 transitions. [2022-07-21 04:44:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-21 04:44:18,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:18,723 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 04:44:18,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:44:18,723 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1276607421, now seen corresponding path program 1 times [2022-07-21 04:44:18,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:18,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193094781] [2022-07-21 04:44:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:44:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:44:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:44:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:44:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:44:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:44:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:44:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 04:44:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:18,811 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 04:44:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:18,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193094781] [2022-07-21 04:44:18,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193094781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:18,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:18,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41274356] [2022-07-21 04:44:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:18,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:18,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:18,813 INFO L87 Difference]: Start difference. First operand 19216 states and 32712 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 04:44:21,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:21,001 INFO L93 Difference]: Finished difference Result 50914 states and 88170 transitions. [2022-07-21 04:44:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:21,002 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 04:44:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:21,113 INFO L225 Difference]: With dead ends: 50914 [2022-07-21 04:44:21,114 INFO L226 Difference]: Without dead ends: 34453 [2022-07-21 04:44:21,156 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 04:44:21,157 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 1319 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:21,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 1388 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34453 states. [2022-07-21 04:44:23,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34453 to 34337. [2022-07-21 04:44:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34337 states, 28589 states have (on average 1.6194690265486726) internal successors, (46299), 28597 states have internal predecessors, (46299), 5720 states have call successors, (5720), 23 states have call predecessors, (5720), 27 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2022-07-21 04:44:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34337 states to 34337 states and 58352 transitions. [2022-07-21 04:44:23,143 INFO L78 Accepts]: Start accepts. Automaton has 34337 states and 58352 transitions. Word has length 164 [2022-07-21 04:44:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:23,144 INFO L495 AbstractCegarLoop]: Abstraction has 34337 states and 58352 transitions. [2022-07-21 04:44:23,144 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 04:44:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 34337 states and 58352 transitions. [2022-07-21 04:44:23,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 04:44:23,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:23,180 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 04:44:23,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:44:23,180 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:23,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:23,181 INFO L85 PathProgramCache]: Analyzing trace with hash -258036620, now seen corresponding path program 1 times [2022-07-21 04:44:23,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:23,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874869879] [2022-07-21 04:44:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:23,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:44:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:44:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:44:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:44:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 04:44:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 04:44:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 04:44:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:23,268 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 04:44:23,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:23,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874869879] [2022-07-21 04:44:23,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874869879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:23,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:23,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:23,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015454686] [2022-07-21 04:44:23,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:23,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:23,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:23,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:23,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:23,271 INFO L87 Difference]: Start difference. First operand 34337 states and 58352 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 04:44:26,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:26,712 INFO L93 Difference]: Finished difference Result 93786 states and 161569 transitions. [2022-07-21 04:44:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:26,713 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 04:44:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:26,966 INFO L225 Difference]: With dead ends: 93786 [2022-07-21 04:44:26,966 INFO L226 Difference]: Without dead ends: 63120 [2022-07-21 04:44:27,035 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 04:44:27,036 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 1334 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:27,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 1385 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63120 states. [2022-07-21 04:44:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63120 to 63004. [2022-07-21 04:44:30,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63004 states, 52743 states have (on average 1.6150768822402972) internal successors, (85184), 52751 states have internal predecessors, (85184), 10233 states have call successors, (10233), 23 states have call predecessors, (10233), 27 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2022-07-21 04:44:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63004 states to 63004 states and 106795 transitions. [2022-07-21 04:44:30,453 INFO L78 Accepts]: Start accepts. Automaton has 63004 states and 106795 transitions. Word has length 165 [2022-07-21 04:44:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:30,453 INFO L495 AbstractCegarLoop]: Abstraction has 63004 states and 106795 transitions. [2022-07-21 04:44:30,453 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 04:44:30,454 INFO L276 IsEmpty]: Start isEmpty. Operand 63004 states and 106795 transitions. [2022-07-21 04:44:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 04:44:30,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:30,509 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, 1] [2022-07-21 04:44:30,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 04:44:30,509 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1692356861, now seen corresponding path program 1 times [2022-07-21 04:44:30,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:30,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121062624] [2022-07-21 04:44:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:44:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:44:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:44:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:44:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:44:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 04:44:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 04:44:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 04:44:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:30,585 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 04:44:30,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:30,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121062624] [2022-07-21 04:44:30,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121062624] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:30,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:30,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161857413] [2022-07-21 04:44:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:30,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:30,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:30,587 INFO L87 Difference]: Start difference. First operand 63004 states and 106795 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 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 04:44:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:35,699 INFO L93 Difference]: Finished difference Result 118162 states and 203946 transitions. [2022-07-21 04:44:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:35,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 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 166 [2022-07-21 04:44:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:36,324 INFO L225 Difference]: With dead ends: 118162 [2022-07-21 04:44:36,324 INFO L226 Difference]: Without dead ends: 117993 [2022-07-21 04:44:36,366 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 04:44:36,366 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1292 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:36,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1395 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:44:36,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117993 states. [2022-07-21 04:44:42,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117993 to 117877. [2022-07-21 04:44:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117877 states, 99248 states have (on average 1.6096243753022732) internal successors, (159752), 99256 states have internal predecessors, (159752), 18601 states have call successors, (18601), 23 states have call predecessors, (18601), 27 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792) [2022-07-21 04:44:42,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117877 states to 117877 states and 199145 transitions. [2022-07-21 04:44:42,802 INFO L78 Accepts]: Start accepts. Automaton has 117877 states and 199145 transitions. Word has length 166 [2022-07-21 04:44:42,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:42,802 INFO L495 AbstractCegarLoop]: Abstraction has 117877 states and 199145 transitions. [2022-07-21 04:44:42,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 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 04:44:42,802 INFO L276 IsEmpty]: Start isEmpty. Operand 117877 states and 199145 transitions. [2022-07-21 04:44:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 04:44:42,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:42,862 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 04:44:42,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 04:44:42,862 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:42,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:42,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1177084375, now seen corresponding path program 1 times [2022-07-21 04:44:42,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:42,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81069638] [2022-07-21 04:44:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:42,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:44:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:44:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:44:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:44:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:44:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 04:44:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:44:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,017 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 04:44:43,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:43,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81069638] [2022-07-21 04:44:43,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81069638] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:43,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651649342] [2022-07-21 04:44:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:43,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:43,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:43,032 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 04:44:43,074 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 04:44:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 04:44:43,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:43,728 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 04:44:43,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:43,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651649342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:43,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:43,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-07-21 04:44:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648874648] [2022-07-21 04:44:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:43,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:44:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:44:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-07-21 04:44:43,730 INFO L87 Difference]: Start difference. First operand 117877 states and 199145 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)