./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_spec27_product25.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 c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:26:16,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:26:16,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:26:16,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:26:16,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:26:16,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:26:16,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:26:16,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:26:16,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:26:16,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:26:16,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:26:16,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:26:16,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:26:16,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:26:16,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:26:16,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:26:16,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:26:16,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:26:16,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:26:16,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:26:16,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:26:16,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:26:16,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:26:16,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:26:16,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:26:16,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:26:16,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:26:16,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:26:16,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:26:16,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:26:16,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:26:16,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:26:16,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:26:16,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:26:16,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:26:16,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:26:16,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:26:16,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:26:16,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:26:16,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:26:16,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:26:16,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:26:16,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:26:16,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:26:16,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:26:16,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:26:16,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:26:16,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:26:16,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:26:16,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:26:16,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:26:16,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:26:16,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:26:16,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:26:16,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:26:16,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:26:16,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:26:16,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:26:16,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:26:16,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:26:16,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:26:16,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:26:16,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:26:16,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:26:16,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:26:16,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:26:16,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:26:16,917 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:26:16,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:26:16,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:26:16,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a [2021-12-22 11:26:17,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:26:17,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:26:17,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:26:17,161 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:26:17,161 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:26:17,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2021-12-22 11:26:17,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f425a5b9d/58074d3d80fd436bb79bc66adc71e20a/FLAGc5284c378 [2021-12-22 11:26:17,788 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:26:17,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2021-12-22 11:26:17,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f425a5b9d/58074d3d80fd436bb79bc66adc71e20a/FLAGc5284c378 [2021-12-22 11:26:18,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f425a5b9d/58074d3d80fd436bb79bc66adc71e20a [2021-12-22 11:26:18,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:26:18,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:26:18,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:26:18,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:26:18,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:26:18,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:18,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa97f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18, skipping insertion in model container [2021-12-22 11:26:18,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:18,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:26:18,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:26:18,758 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_spec27_product25.cil.c[58911,58924] [2021-12-22 11:26:18,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:26:18,804 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:26:18,866 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_spec27_product25.cil.c[58911,58924] [2021-12-22 11:26:18,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:26:18,903 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:26:18,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18 WrapperNode [2021-12-22 11:26:18,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:26:18,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:26:18,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:26:18,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:26:18,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:18,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:18,993 INFO L137 Inliner]: procedures = 130, calls = 219, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1027 [2021-12-22 11:26:18,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:26:18,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:26:18,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:26:18,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:26:19,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:26:19,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:26:19,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:26:19,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:26:19,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (1/1) ... [2021-12-22 11:26:19,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:26:19,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:19,141 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) [2021-12-22 11:26:19,165 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 [2021-12-22 11:26:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-22 11:26:19,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-22 11:26:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-22 11:26:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-22 11:26:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2021-12-22 11:26:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2021-12-22 11:26:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-22 11:26:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-22 11:26:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-22 11:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-22 11:26:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-22 11:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-22 11:26:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-22 11:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-22 11:26:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-22 11:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-22 11:26:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-22 11:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-22 11:26:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-22 11:26:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-22 11:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-22 11:26:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-22 11:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-22 11:26:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:26:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-22 11:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-22 11:26:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-22 11:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-22 11:26:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-22 11:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-22 11:26:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-22 11:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-22 11:26:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-22 11:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-22 11:26:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-12-22 11:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-12-22 11:26:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-22 11:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-22 11:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-22 11:26:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-22 11:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-22 11:26:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-22 11:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-22 11:26:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-22 11:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-22 11:26:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-22 11:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-22 11:26:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-22 11:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:26:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:26:19,429 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:26:19,430 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:26:20,148 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:26:20,164 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:26:20,164 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 11:26:20,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:26:20 BoogieIcfgContainer [2021-12-22 11:26:20,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:26:20,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:26:20,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:26:20,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:26:20,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:26:18" (1/3) ... [2021-12-22 11:26:20,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764cb24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:26:20, skipping insertion in model container [2021-12-22 11:26:20,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:18" (2/3) ... [2021-12-22 11:26:20,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764cb24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:26:20, skipping insertion in model container [2021-12-22 11:26:20,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:26:20" (3/3) ... [2021-12-22 11:26:20,175 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2021-12-22 11:26:20,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:26:20,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:26:20,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:26:20,241 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 11:26:20,241 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:26:20,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 392 states, 309 states have (on average 1.5598705501618122) internal successors, (482), 312 states have internal predecessors, (482), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-22 11:26:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-22 11:26:20,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:20,305 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:20,306 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:20,311 INFO L85 PathProgramCache]: Analyzing trace with hash 596273931, now seen corresponding path program 1 times [2021-12-22 11:26:20,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:20,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154905811] [2021-12-22 11:26:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:20,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:26:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:26:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:26:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 11:26:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 11:26:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 11:26:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:26:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:26:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 11:26:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:26:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:26:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:26:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:26:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:20,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:20,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154905811] [2021-12-22 11:26:20,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154905811] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:20,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638921621] [2021-12-22 11:26:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:20,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:20,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:20,840 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) [2021-12-22 11:26:20,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 11:26:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-22 11:26:21,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-22 11:26:21,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:21,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638921621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:21,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:21,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-22 11:26:21,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833352772] [2021-12-22 11:26:21,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:21,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-22 11:26:21,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-22 11:26:21,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:26:21,379 INFO L87 Difference]: Start difference. First operand has 392 states, 309 states have (on average 1.5598705501618122) internal successors, (482), 312 states have internal predecessors, (482), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:21,426 INFO L93 Difference]: Finished difference Result 591 states and 886 transitions. [2021-12-22 11:26:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-22 11:26:21,427 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2021-12-22 11:26:21,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:21,440 INFO L225 Difference]: With dead ends: 591 [2021-12-22 11:26:21,440 INFO L226 Difference]: Without dead ends: 385 [2021-12-22 11:26:21,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:26:21,448 INFO L933 BasicCegarLoop]: 594 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, 594 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 [2021-12-22 11:26:21,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-12-22 11:26:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2021-12-22 11:26:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 303 states have (on average 1.5544554455445545) internal successors, (471), 305 states have internal predecessors, (471), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2021-12-22 11:26:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 586 transitions. [2021-12-22 11:26:21,512 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 586 transitions. Word has length 136 [2021-12-22 11:26:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 586 transitions. [2021-12-22 11:26:21,514 INFO L471 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 586 transitions. [2021-12-22 11:26:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-22 11:26:21,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:21,519 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-12-22 11:26:21,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 11:26:21,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-22 11:26:21,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:21,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:21,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1738293804, now seen corresponding path program 1 times [2021-12-22 11:26:21,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:21,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613909778] [2021-12-22 11:26:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:21,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:26:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:26:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:26:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 11:26:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 11:26:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 11:26:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:26:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 11:26:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:26:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:26:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:26:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-22 11:26:21,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:21,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613909778] [2021-12-22 11:26:21,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613909778] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:21,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318378010] [2021-12-22 11:26:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:21,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:21,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:21,934 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) [2021-12-22 11:26:21,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 11:26:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 11:26:22,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-22 11:26:22,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:22,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318378010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:22,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:22,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-22 11:26:22,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027259089] [2021-12-22 11:26:22,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:22,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 11:26:22,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:22,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 11:26:22,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:26:22,404 INFO L87 Difference]: Start difference. First operand 385 states and 586 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:22,460 INFO L93 Difference]: Finished difference Result 581 states and 864 transitions. [2021-12-22 11:26:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 11:26:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 118 [2021-12-22 11:26:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:22,464 INFO L225 Difference]: With dead ends: 581 [2021-12-22 11:26:22,465 INFO L226 Difference]: Without dead ends: 388 [2021-12-22 11:26:22,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:26:22,468 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1166 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 [2021-12-22 11:26:22,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-12-22 11:26:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 387. [2021-12-22 11:26:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.5508196721311476) internal successors, (473), 307 states have internal predecessors, (473), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2021-12-22 11:26:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 588 transitions. [2021-12-22 11:26:22,508 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 588 transitions. Word has length 118 [2021-12-22 11:26:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:22,509 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 588 transitions. [2021-12-22 11:26:22,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 588 transitions. [2021-12-22 11:26:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-22 11:26:22,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:22,511 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-12-22 11:26:22,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:22,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-22 11:26:22,732 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:22,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1778661451, now seen corresponding path program 1 times [2021-12-22 11:26:22,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:22,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332514367] [2021-12-22 11:26:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:22,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:26:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:26:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:26:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 11:26:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 11:26:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:26:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 11:26:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:26:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:26:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 11:26:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:26:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-22 11:26:22,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:22,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332514367] [2021-12-22 11:26:22,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332514367] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765962567] [2021-12-22 11:26:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:22,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:22,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:22,906 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) [2021-12-22 11:26:22,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 11:26:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 11:26:23,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-22 11:26:23,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:23,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765962567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:23,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:23,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-22 11:26:23,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729731882] [2021-12-22 11:26:23,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:23,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 11:26:23,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:23,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 11:26:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:26:23,392 INFO L87 Difference]: Start difference. First operand 387 states and 588 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:23,452 INFO L93 Difference]: Finished difference Result 822 states and 1268 transitions. [2021-12-22 11:26:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 11:26:23,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2021-12-22 11:26:23,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:23,460 INFO L225 Difference]: With dead ends: 822 [2021-12-22 11:26:23,460 INFO L226 Difference]: Without dead ends: 462 [2021-12-22 11:26:23,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:26:23,467 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 134 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1147 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 [2021-12-22 11:26:23,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1147 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-12-22 11:26:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 454. [2021-12-22 11:26:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 358 states have (on average 1.5698324022346368) internal successors, (562), 360 states have internal predecessors, (562), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2021-12-22 11:26:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 705 transitions. [2021-12-22 11:26:23,520 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 705 transitions. Word has length 124 [2021-12-22 11:26:23,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:23,521 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 705 transitions. [2021-12-22 11:26:23,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 705 transitions. [2021-12-22 11:26:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-22 11:26:23,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:23,527 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:23,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:23,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:23,752 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:23,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2093375302, now seen corresponding path program 1 times [2021-12-22 11:26:23,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:23,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527875093] [2021-12-22 11:26:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:23,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:26:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:26:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:26:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 11:26:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 11:26:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:26:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 11:26:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 11:26:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:26:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:26:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:26:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:26:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-22 11:26:23,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:23,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527875093] [2021-12-22 11:26:23,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527875093] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:23,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792569940] [2021-12-22 11:26:23,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:23,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:23,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:23,894 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) [2021-12-22 11:26:23,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 11:26:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:26:24,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:24,414 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 11:26:24,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:24,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792569940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:24,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:24,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-22 11:26:24,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895270430] [2021-12-22 11:26:24,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:24,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:26:24,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:24,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:26:24,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:24,420 INFO L87 Difference]: Start difference. First operand 454 states and 705 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:24,481 INFO L93 Difference]: Finished difference Result 899 states and 1400 transitions. [2021-12-22 11:26:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:26:24,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2021-12-22 11:26:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:24,485 INFO L225 Difference]: With dead ends: 899 [2021-12-22 11:26:24,486 INFO L226 Difference]: Without dead ends: 456 [2021-12-22 11:26:24,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:24,490 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 152 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:24,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2134 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:24,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-22 11:26:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-12-22 11:26:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 359 states have (on average 1.5682451253481895) internal successors, (563), 362 states have internal predecessors, (563), 72 states have call successors, (72), 23 states have call predecessors, (72), 24 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2021-12-22 11:26:24,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 708 transitions. [2021-12-22 11:26:24,521 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 708 transitions. Word has length 144 [2021-12-22 11:26:24,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:24,522 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 708 transitions. [2021-12-22 11:26:24,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:24,522 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 708 transitions. [2021-12-22 11:26:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-22 11:26:24,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:24,526 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:24,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:24,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:24,739 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:24,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1285036805, now seen corresponding path program 1 times [2021-12-22 11:26:24,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:24,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117384616] [2021-12-22 11:26:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:24,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-22 11:26:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:26:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 11:26:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:26:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 11:26:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 11:26:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 11:26:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:26:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:26:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:26:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:26:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:26:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:26:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 11:26:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-22 11:26:24,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:24,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117384616] [2021-12-22 11:26:24,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117384616] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:24,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292121284] [2021-12-22 11:26:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:24,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:24,920 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) [2021-12-22 11:26:24,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 11:26:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 11:26:25,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 11:26:25,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:25,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292121284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:25,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:25,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-22 11:26:25,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106126100] [2021-12-22 11:26:25,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:25,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:26:25,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:26:25,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-22 11:26:25,407 INFO L87 Difference]: Start difference. First operand 456 states and 708 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:25,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:25,474 INFO L93 Difference]: Finished difference Result 901 states and 1405 transitions. [2021-12-22 11:26:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:26:25,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2021-12-22 11:26:25,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:25,480 INFO L225 Difference]: With dead ends: 901 [2021-12-22 11:26:25,480 INFO L226 Difference]: Without dead ends: 458 [2021-12-22 11:26:25,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-22 11:26:25,482 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 151 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:25,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2123 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:25,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-12-22 11:26:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2021-12-22 11:26:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 360 states have (on average 1.5666666666666667) internal successors, (564), 364 states have internal predecessors, (564), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2021-12-22 11:26:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 714 transitions. [2021-12-22 11:26:25,508 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 714 transitions. Word has length 145 [2021-12-22 11:26:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:25,509 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 714 transitions. [2021-12-22 11:26:25,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 714 transitions. [2021-12-22 11:26:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-22 11:26:25,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:25,512 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:25,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:25,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:25,727 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1548137547, now seen corresponding path program 1 times [2021-12-22 11:26:25,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:25,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133625664] [2021-12-22 11:26:25,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:25,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 11:26:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 11:26:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 11:26:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:26:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:26:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 11:26:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 11:26:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:26:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 11:26:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 11:26:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-22 11:26:25,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:25,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133625664] [2021-12-22 11:26:25,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133625664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:25,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:25,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 11:26:25,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806791839] [2021-12-22 11:26:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:25,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 11:26:25,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 11:26:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:26:25,880 INFO L87 Difference]: Start difference. First operand 458 states and 714 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:27,774 INFO L93 Difference]: Finished difference Result 1062 states and 1672 transitions. [2021-12-22 11:26:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 11:26:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2021-12-22 11:26:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:27,779 INFO L225 Difference]: With dead ends: 1062 [2021-12-22 11:26:27,779 INFO L226 Difference]: Without dead ends: 627 [2021-12-22 11:26:27,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:26:27,782 INFO L933 BasicCegarLoop]: 692 mSDtfsCounter, 1433 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:27,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1454 Valid, 1949 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-22 11:26:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-22 11:26:27,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 458. [2021-12-22 11:26:27,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 360 states have (on average 1.5666666666666667) internal successors, (564), 364 states have internal predecessors, (564), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2021-12-22 11:26:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 713 transitions. [2021-12-22 11:26:27,813 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 713 transitions. Word has length 146 [2021-12-22 11:26:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:27,813 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 713 transitions. [2021-12-22 11:26:27,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:27,814 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 713 transitions. [2021-12-22 11:26:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-22 11:26:27,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:27,816 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 11:26:27,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 11:26:27,817 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1696291680, now seen corresponding path program 1 times [2021-12-22 11:26:27,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:27,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013834019] [2021-12-22 11:26:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:27,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-22 11:26:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 11:26:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 11:26:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 11:26:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:26:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:26:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 11:26:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:26:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 11:26:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-22 11:26:27,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:27,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013834019] [2021-12-22 11:26:27,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013834019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:27,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:27,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 11:26:27,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581599489] [2021-12-22 11:26:27,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:27,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 11:26:27,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 11:26:27,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:26:27,927 INFO L87 Difference]: Start difference. First operand 458 states and 713 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-22 11:26:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:29,750 INFO L93 Difference]: Finished difference Result 1064 states and 1675 transitions. [2021-12-22 11:26:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 11:26:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 128 [2021-12-22 11:26:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:29,754 INFO L225 Difference]: With dead ends: 1064 [2021-12-22 11:26:29,755 INFO L226 Difference]: Without dead ends: 629 [2021-12-22 11:26:29,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:26:29,757 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 1424 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:29,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1444 Valid, 1960 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 11:26:29,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-12-22 11:26:29,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 460. [2021-12-22 11:26:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 361 states have (on average 1.5650969529085872) internal successors, (565), 366 states have internal predecessors, (565), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2021-12-22 11:26:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 716 transitions. [2021-12-22 11:26:29,783 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 716 transitions. Word has length 128 [2021-12-22 11:26:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:29,783 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 716 transitions. [2021-12-22 11:26:29,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-22 11:26:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 716 transitions. [2021-12-22 11:26:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-22 11:26:29,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:29,787 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:29,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 11:26:29,787 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:29,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:29,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1698489008, now seen corresponding path program 1 times [2021-12-22 11:26:29,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:29,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696971551] [2021-12-22 11:26:29,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:29,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 11:26:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:26:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:26:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:26:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:26:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:26:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:26:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 11:26:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 11:26:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:26:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 11:26:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-22 11:26:29,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:29,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696971551] [2021-12-22 11:26:29,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696971551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:29,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:29,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:26:29,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120188730] [2021-12-22 11:26:29,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:29,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:26:29,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:29,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:26:29,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:29,952 INFO L87 Difference]: Start difference. First operand 460 states and 716 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:26:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:32,255 INFO L93 Difference]: Finished difference Result 1062 states and 1670 transitions. [2021-12-22 11:26:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 11:26:32,255 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2021-12-22 11:26:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:32,259 INFO L225 Difference]: With dead ends: 1062 [2021-12-22 11:26:32,259 INFO L226 Difference]: Without dead ends: 629 [2021-12-22 11:26:32,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-22 11:26:32,261 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 1565 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 4390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:32,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 2541 Invalid, 4390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 11:26:32,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-12-22 11:26:32,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 460. [2021-12-22 11:26:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 361 states have (on average 1.5650969529085872) internal successors, (565), 366 states have internal predecessors, (565), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2021-12-22 11:26:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 715 transitions. [2021-12-22 11:26:32,288 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 715 transitions. Word has length 148 [2021-12-22 11:26:32,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:32,289 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 715 transitions. [2021-12-22 11:26:32,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:26:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 715 transitions. [2021-12-22 11:26:32,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-22 11:26:32,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:32,292 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:32,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 11:26:32,292 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:32,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1410393638, now seen corresponding path program 2 times [2021-12-22 11:26:32,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:32,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599508391] [2021-12-22 11:26:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:32,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 11:26:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 11:26:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 11:26:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 11:26:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:26:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:26:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 11:26:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:26:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 11:26:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 11:26:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 11:26:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-22 11:26:32,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599508391] [2021-12-22 11:26:32,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599508391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:32,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:32,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:26:32,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162864254] [2021-12-22 11:26:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:32,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:26:32,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:26:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:32,460 INFO L87 Difference]: Start difference. First operand 460 states and 715 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:26:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:34,630 INFO L93 Difference]: Finished difference Result 1064 states and 1676 transitions. [2021-12-22 11:26:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 11:26:34,630 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2021-12-22 11:26:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:34,634 INFO L225 Difference]: With dead ends: 1064 [2021-12-22 11:26:34,634 INFO L226 Difference]: Without dead ends: 631 [2021-12-22 11:26:34,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-22 11:26:34,636 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 1561 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3808 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 3808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:34,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 2535 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 3808 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-22 11:26:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-12-22 11:26:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 462. [2021-12-22 11:26:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 362 states have (on average 1.5635359116022098) internal successors, (566), 368 states have internal predecessors, (566), 72 states have call successors, (72), 23 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2021-12-22 11:26:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 721 transitions. [2021-12-22 11:26:34,674 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 721 transitions. Word has length 149 [2021-12-22 11:26:34,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:34,675 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 721 transitions. [2021-12-22 11:26:34,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:26:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 721 transitions. [2021-12-22 11:26:34,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-22 11:26:34,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:34,677 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:34,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 11:26:34,678 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:34,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:34,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1081330841, now seen corresponding path program 1 times [2021-12-22 11:26:34,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:34,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603703811] [2021-12-22 11:26:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:34,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:26:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 11:26:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:26:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:26:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:26:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 11:26:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:26:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:26:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 11:26:34,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:34,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603703811] [2021-12-22 11:26:34,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603703811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:34,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:34,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 11:26:34,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998522506] [2021-12-22 11:26:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:34,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 11:26:34,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:34,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 11:26:34,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:26:34,776 INFO L87 Difference]: Start difference. First operand 462 states and 721 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-22 11:26:36,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:36,452 INFO L93 Difference]: Finished difference Result 1066 states and 1679 transitions. [2021-12-22 11:26:36,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 11:26:36,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 131 [2021-12-22 11:26:36,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:36,456 INFO L225 Difference]: With dead ends: 1066 [2021-12-22 11:26:36,456 INFO L226 Difference]: Without dead ends: 631 [2021-12-22 11:26:36,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-22 11:26:36,459 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 1427 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:36,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1448 Valid, 1947 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 11:26:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-12-22 11:26:36,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 462. [2021-12-22 11:26:36,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 362 states have (on average 1.5635359116022098) internal successors, (566), 368 states have internal predecessors, (566), 72 states have call successors, (72), 23 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2021-12-22 11:26:36,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 721 transitions. [2021-12-22 11:26:36,489 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 721 transitions. Word has length 131 [2021-12-22 11:26:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:36,489 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 721 transitions. [2021-12-22 11:26:36,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-22 11:26:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 721 transitions. [2021-12-22 11:26:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-22 11:26:36,492 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:36,492 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:36,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 11:26:36,492 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:36,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1667607063, now seen corresponding path program 1 times [2021-12-22 11:26:36,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:36,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117614886] [2021-12-22 11:26:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:36,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:26:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 11:26:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:26:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:26:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:26:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 11:26:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:26:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:26:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:36,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:36,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117614886] [2021-12-22 11:26:36,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117614886] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:36,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481405990] [2021-12-22 11:26:36,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:36,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:36,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:36,608 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) [2021-12-22 11:26:36,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 11:26:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 11:26:36,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:37,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:26:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:37,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481405990] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:26:37,269 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:26:37,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-22 11:26:37,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449581526] [2021-12-22 11:26:37,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:26:37,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 11:26:37,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:37,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 11:26:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-22 11:26:37,274 INFO L87 Difference]: Start difference. First operand 462 states and 721 transitions. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 7 states have internal predecessors, (127), 2 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:39,057 INFO L93 Difference]: Finished difference Result 1266 states and 2068 transitions. [2021-12-22 11:26:39,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 11:26:39,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 7 states have internal predecessors, (127), 2 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 131 [2021-12-22 11:26:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:39,062 INFO L225 Difference]: With dead ends: 1266 [2021-12-22 11:26:39,062 INFO L226 Difference]: Without dead ends: 1073 [2021-12-22 11:26:39,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:26:39,064 INFO L933 BasicCegarLoop]: 798 mSDtfsCounter, 1819 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:39,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1873 Valid, 2473 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 11:26:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2021-12-22 11:26:39,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 880. [2021-12-22 11:26:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 701 states have (on average 1.6248216833095577) internal successors, (1139), 707 states have internal predecessors, (1139), 151 states have call successors, (151), 23 states have call predecessors, (151), 27 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2021-12-22 11:26:39,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1462 transitions. [2021-12-22 11:26:39,117 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1462 transitions. Word has length 131 [2021-12-22 11:26:39,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:39,117 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1462 transitions. [2021-12-22 11:26:39,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 7 states have internal predecessors, (127), 2 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:39,117 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1462 transitions. [2021-12-22 11:26:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-22 11:26:39,122 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:39,123 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:39,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-22 11:26:39,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:39,340 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:39,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:39,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1503956558, now seen corresponding path program 1 times [2021-12-22 11:26:39,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:39,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290984796] [2021-12-22 11:26:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:39,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:26:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:26:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:26:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 11:26:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:26:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:26:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 11:26:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:26:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 11:26:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-22 11:26:39,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:39,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290984796] [2021-12-22 11:26:39,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290984796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:39,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:39,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:39,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755410582] [2021-12-22 11:26:39,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:39,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:39,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:39,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:39,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:39,456 INFO L87 Difference]: Start difference. First operand 880 states and 1462 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:40,804 INFO L93 Difference]: Finished difference Result 2284 states and 3869 transitions. [2021-12-22 11:26:40,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:40,805 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2021-12-22 11:26:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:40,811 INFO L225 Difference]: With dead ends: 2284 [2021-12-22 11:26:40,811 INFO L226 Difference]: Without dead ends: 1472 [2021-12-22 11:26:40,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:40,814 INFO L933 BasicCegarLoop]: 743 mSDtfsCounter, 1421 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:40,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 1682 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:40,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2021-12-22 11:26:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1295. [2021-12-22 11:26:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1037 states have (on average 1.6383799421407907) internal successors, (1699), 1043 states have internal predecessors, (1699), 230 states have call successors, (230), 23 states have call predecessors, (230), 27 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2021-12-22 11:26:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 2190 transitions. [2021-12-22 11:26:40,905 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 2190 transitions. Word has length 156 [2021-12-22 11:26:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:40,906 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 2190 transitions. [2021-12-22 11:26:40,906 INFO L471 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 2190 transitions. [2021-12-22 11:26:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-22 11:26:40,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:40,913 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-22 11:26:40,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 11:26:40,914 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:40,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:40,914 INFO L85 PathProgramCache]: Analyzing trace with hash -171115450, now seen corresponding path program 1 times [2021-12-22 11:26:40,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:40,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448380799] [2021-12-22 11:26:40,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:40,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 11:26:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:26:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 11:26:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 11:26:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:26:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:26:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:26:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:41,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:41,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448380799] [2021-12-22 11:26:41,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448380799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:41,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:41,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:41,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215477345] [2021-12-22 11:26:41,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:41,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:41,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:41,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:41,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:41,007 INFO L87 Difference]: Start difference. First operand 1295 states and 2190 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:42,284 INFO L93 Difference]: Finished difference Result 3298 states and 5647 transitions. [2021-12-22 11:26:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:42,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2021-12-22 11:26:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:42,295 INFO L225 Difference]: With dead ends: 3298 [2021-12-22 11:26:42,295 INFO L226 Difference]: Without dead ends: 2124 [2021-12-22 11:26:42,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:42,300 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1420 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:42,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1438 Valid, 1618 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2021-12-22 11:26:42,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1947. [2021-12-22 11:26:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1570 states have (on average 1.6471337579617835) internal successors, (2586), 1576 states have internal predecessors, (2586), 349 states have call successors, (349), 23 states have call predecessors, (349), 27 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2021-12-22 11:26:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 3315 transitions. [2021-12-22 11:26:42,422 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 3315 transitions. Word has length 138 [2021-12-22 11:26:42,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:42,422 INFO L470 AbstractCegarLoop]: Abstraction has 1947 states and 3315 transitions. [2021-12-22 11:26:42,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:42,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 3315 transitions. [2021-12-22 11:26:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-22 11:26:42,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:42,433 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-22 11:26:42,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 11:26:42,434 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:42,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:42,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2070131414, now seen corresponding path program 1 times [2021-12-22 11:26:42,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:42,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768726226] [2021-12-22 11:26:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:42,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 11:26:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 11:26:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 11:26:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:26:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:26:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:26:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 11:26:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:26:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:26:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:42,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:42,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768726226] [2021-12-22 11:26:42,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768726226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:42,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:42,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:42,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972443748] [2021-12-22 11:26:42,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:42,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:42,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:42,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:42,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:42,537 INFO L87 Difference]: Start difference. First operand 1947 states and 3315 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:43,869 INFO L93 Difference]: Finished difference Result 4828 states and 8349 transitions. [2021-12-22 11:26:43,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:43,870 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2021-12-22 11:26:43,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:43,884 INFO L225 Difference]: With dead ends: 4828 [2021-12-22 11:26:43,885 INFO L226 Difference]: Without dead ends: 3127 [2021-12-22 11:26:43,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:43,891 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 1417 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:43,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 1605 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:43,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2021-12-22 11:26:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 2950. [2021-12-22 11:26:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2411 states have (on average 1.6540854417254252) internal successors, (3988), 2417 states have internal predecessors, (3988), 511 states have call successors, (511), 23 states have call predecessors, (511), 27 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2021-12-22 11:26:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5057 transitions. [2021-12-22 11:26:44,043 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5057 transitions. Word has length 139 [2021-12-22 11:26:44,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:44,044 INFO L470 AbstractCegarLoop]: Abstraction has 2950 states and 5057 transitions. [2021-12-22 11:26:44,044 INFO L471 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:44,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5057 transitions. [2021-12-22 11:26:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-22 11:26:44,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:44,059 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-22 11:26:44,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 11:26:44,059 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:44,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:44,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2140926361, now seen corresponding path program 1 times [2021-12-22 11:26:44,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:44,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967236061] [2021-12-22 11:26:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:44,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 11:26:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 11:26:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:26:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 11:26:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 11:26:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 11:26:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 11:26:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:44,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:44,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967236061] [2021-12-22 11:26:44,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967236061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:44,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:44,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:44,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836722665] [2021-12-22 11:26:44,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:44,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:44,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:44,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:44,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:44,178 INFO L87 Difference]: Start difference. First operand 2950 states and 5057 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:45,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:45,560 INFO L93 Difference]: Finished difference Result 7252 states and 12638 transitions. [2021-12-22 11:26:45,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:45,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2021-12-22 11:26:45,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:45,582 INFO L225 Difference]: With dead ends: 7252 [2021-12-22 11:26:45,582 INFO L226 Difference]: Without dead ends: 4752 [2021-12-22 11:26:45,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:45,591 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1413 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:45,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1431 Valid, 1607 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4752 states. [2021-12-22 11:26:45,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4752 to 4575. [2021-12-22 11:26:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 3791 states have (on average 1.6589290424690055) internal successors, (6289), 3797 states have internal predecessors, (6289), 756 states have call successors, (756), 23 states have call predecessors, (756), 27 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2021-12-22 11:26:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 7874 transitions. [2021-12-22 11:26:45,849 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 7874 transitions. Word has length 140 [2021-12-22 11:26:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:45,849 INFO L470 AbstractCegarLoop]: Abstraction has 4575 states and 7874 transitions. [2021-12-22 11:26:45,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 7874 transitions. [2021-12-22 11:26:45,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-22 11:26:45,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:45,867 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:45,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 11:26:45,868 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:45,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1465925072, now seen corresponding path program 1 times [2021-12-22 11:26:45,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:45,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895788410] [2021-12-22 11:26:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:45,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 11:26:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 11:26:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:26:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 11:26:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:26:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:26:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 11:26:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 11:26:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 11:26:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 11:26:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 11:26:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 11:26:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-22 11:26:45,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:45,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895788410] [2021-12-22 11:26:45,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895788410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:45,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:45,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:45,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360460059] [2021-12-22 11:26:45,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:45,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:45,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:45,994 INFO L87 Difference]: Start difference. First operand 4575 states and 7874 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:47,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:47,403 INFO L93 Difference]: Finished difference Result 11298 states and 19798 transitions. [2021-12-22 11:26:47,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:47,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2021-12-22 11:26:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:47,444 INFO L225 Difference]: With dead ends: 11298 [2021-12-22 11:26:47,444 INFO L226 Difference]: Without dead ends: 7485 [2021-12-22 11:26:47,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:47,460 INFO L933 BasicCegarLoop]: 742 mSDtfsCounter, 1414 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:47,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 1672 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7485 states. [2021-12-22 11:26:47,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7485 to 7308. [2021-12-22 11:26:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7308 states, 6031 states have (on average 1.6571049577184547) internal successors, (9994), 6037 states have internal predecessors, (9994), 1249 states have call successors, (1249), 23 states have call predecessors, (1249), 27 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2021-12-22 11:26:47,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7308 states to 7308 states and 12609 transitions. [2021-12-22 11:26:47,900 INFO L78 Accepts]: Start accepts. Automaton has 7308 states and 12609 transitions. Word has length 160 [2021-12-22 11:26:47,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:47,900 INFO L470 AbstractCegarLoop]: Abstraction has 7308 states and 12609 transitions. [2021-12-22 11:26:47,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:47,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7308 states and 12609 transitions. [2021-12-22 11:26:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-22 11:26:47,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:47,925 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-22 11:26:47,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 11:26:47,926 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash 167082539, now seen corresponding path program 1 times [2021-12-22 11:26:47,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:47,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761684366] [2021-12-22 11:26:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:47,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:47,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:26:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:26:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:26:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:26:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:26:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 11:26:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:26:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:48,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:48,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761684366] [2021-12-22 11:26:48,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761684366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:48,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:48,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:48,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681990367] [2021-12-22 11:26:48,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:48,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:48,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:48,019 INFO L87 Difference]: Start difference. First operand 7308 states and 12609 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:49,646 INFO L93 Difference]: Finished difference Result 18633 states and 32682 transitions. [2021-12-22 11:26:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:49,647 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2021-12-22 11:26:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:49,688 INFO L225 Difference]: With dead ends: 18633 [2021-12-22 11:26:49,688 INFO L226 Difference]: Without dead ends: 12464 [2021-12-22 11:26:49,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:49,711 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1410 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:49,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 1615 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12464 states. [2021-12-22 11:26:50,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12464 to 12287. [2021-12-22 11:26:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12287 states, 10188 states have (on average 1.657243816254417) internal successors, (16884), 10194 states have internal predecessors, (16884), 2071 states have call successors, (2071), 23 states have call predecessors, (2071), 27 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2021-12-22 11:26:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12287 states to 12287 states and 21221 transitions. [2021-12-22 11:26:50,350 INFO L78 Accepts]: Start accepts. Automaton has 12287 states and 21221 transitions. Word has length 142 [2021-12-22 11:26:50,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:50,350 INFO L470 AbstractCegarLoop]: Abstraction has 12287 states and 21221 transitions. [2021-12-22 11:26:50,351 INFO L471 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:50,351 INFO L276 IsEmpty]: Start isEmpty. Operand 12287 states and 21221 transitions. [2021-12-22 11:26:50,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-22 11:26:50,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:50,384 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:50,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 11:26:50,384 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:50,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash 740908290, now seen corresponding path program 1 times [2021-12-22 11:26:50,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:50,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111896791] [2021-12-22 11:26:50,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:50,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:26:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 11:26:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:26:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:26:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 11:26:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:26:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:26:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 11:26:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 11:26:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 11:26:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-22 11:26:50,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:50,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111896791] [2021-12-22 11:26:50,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111896791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:50,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:50,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:50,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593202735] [2021-12-22 11:26:50,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:50,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:50,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:50,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:50,484 INFO L87 Difference]: Start difference. First operand 12287 states and 21221 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:52,338 INFO L93 Difference]: Finished difference Result 29591 states and 51647 transitions. [2021-12-22 11:26:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:52,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2021-12-22 11:26:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:52,417 INFO L225 Difference]: With dead ends: 29591 [2021-12-22 11:26:52,417 INFO L226 Difference]: Without dead ends: 19417 [2021-12-22 11:26:52,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:52,510 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1410 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:52,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 1585 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19417 states. [2021-12-22 11:26:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19417 to 19240. [2021-12-22 11:26:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19240 states, 15938 states have (on average 1.632952691680261) internal successors, (26026), 15944 states have internal predecessors, (26026), 3274 states have call successors, (3274), 23 states have call predecessors, (3274), 27 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2021-12-22 11:26:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19240 states to 19240 states and 32913 transitions. [2021-12-22 11:26:53,386 INFO L78 Accepts]: Start accepts. Automaton has 19240 states and 32913 transitions. Word has length 162 [2021-12-22 11:26:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:53,387 INFO L470 AbstractCegarLoop]: Abstraction has 19240 states and 32913 transitions. [2021-12-22 11:26:53,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19240 states and 32913 transitions. [2021-12-22 11:26:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-22 11:26:53,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:53,416 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-22 11:26:53,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 11:26:53,417 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:53,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1049714028, now seen corresponding path program 1 times [2021-12-22 11:26:53,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:53,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88056018] [2021-12-22 11:26:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:53,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 11:26:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:26:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:26:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:26:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:26:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:26:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:26:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:26:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:26:53,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:53,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88056018] [2021-12-22 11:26:53,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88056018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:53,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:53,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:53,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259900084] [2021-12-22 11:26:53,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:53,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:53,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:53,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:53,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:53,505 INFO L87 Difference]: Start difference. First operand 19240 states and 32913 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:55,926 INFO L93 Difference]: Finished difference Result 51023 states and 88767 transitions. [2021-12-22 11:26:55,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:55,926 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2021-12-22 11:26:55,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:56,061 INFO L225 Difference]: With dead ends: 51023 [2021-12-22 11:26:56,061 INFO L226 Difference]: Without dead ends: 34538 [2021-12-22 11:26:56,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:56,118 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 1406 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:56,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 1617 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:26:56,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34538 states. [2021-12-22 11:26:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34538 to 34361. [2021-12-22 11:26:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34361 states, 28609 states have (on average 1.6298717186899228) internal successors, (46629), 28615 states have internal predecessors, (46629), 5724 states have call successors, (5724), 23 states have call predecessors, (5724), 27 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2021-12-22 11:26:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34361 states to 34361 states and 58690 transitions. [2021-12-22 11:26:57,749 INFO L78 Accepts]: Start accepts. Automaton has 34361 states and 58690 transitions. Word has length 144 [2021-12-22 11:26:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:57,749 INFO L470 AbstractCegarLoop]: Abstraction has 34361 states and 58690 transitions. [2021-12-22 11:26:57,750 INFO L471 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:26:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 34361 states and 58690 transitions. [2021-12-22 11:26:58,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-22 11:26:58,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:58,129 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:58,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-22 11:26:58,129 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:58,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1454676440, now seen corresponding path program 1 times [2021-12-22 11:26:58,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:58,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639100288] [2021-12-22 11:26:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:58,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:26:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:26:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:26:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:26:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:26:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 11:26:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:26:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:26:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:26:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:26:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:26:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 11:26:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 11:26:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 11:26:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-22 11:26:58,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:58,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639100288] [2021-12-22 11:26:58,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639100288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:58,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:58,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:58,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506573156] [2021-12-22 11:26:58,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:58,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:58,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:58,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:58,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:58,280 INFO L87 Difference]: Start difference. First operand 34361 states and 58690 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:27:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:27:01,520 INFO L93 Difference]: Finished difference Result 93895 states and 162561 transitions. [2021-12-22 11:27:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:27:01,520 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2021-12-22 11:27:01,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:27:01,818 INFO L225 Difference]: With dead ends: 93895 [2021-12-22 11:27:01,818 INFO L226 Difference]: Without dead ends: 63205 [2021-12-22 11:27:01,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:27:01,879 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1404 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:27:01,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1422 Valid, 1616 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:27:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63205 states. [2021-12-22 11:27:04,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63205 to 63028. [2021-12-22 11:27:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63028 states, 52763 states have (on average 1.6257604760912003) internal successors, (85780), 52769 states have internal predecessors, (85780), 10237 states have call successors, (10237), 23 states have call predecessors, (10237), 27 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2021-12-22 11:27:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63028 states to 63028 states and 107399 transitions. [2021-12-22 11:27:05,045 INFO L78 Accepts]: Start accepts. Automaton has 63028 states and 107399 transitions. Word has length 164 [2021-12-22 11:27:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:27:05,045 INFO L470 AbstractCegarLoop]: Abstraction has 63028 states and 107399 transitions. [2021-12-22 11:27:05,045 INFO L471 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:27:05,046 INFO L276 IsEmpty]: Start isEmpty. Operand 63028 states and 107399 transitions. [2021-12-22 11:27:05,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-22 11:27:05,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:27:05,098 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-22 11:27:05,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-22 11:27:05,098 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:27:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:27:05,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1629987212, now seen corresponding path program 1 times [2021-12-22 11:27:05,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:27:05,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980016147] [2021-12-22 11:27:05,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:27:05,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:27:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:27:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:27:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:27:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:27:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:27:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:27:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 11:27:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 11:27:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:27:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:27:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 11:27:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 11:27:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:27:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 11:27:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 11:27:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:27:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 11:27:05,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:27:05,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980016147] [2021-12-22 11:27:05,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980016147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:27:05,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:27:05,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:27:05,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595111722] [2021-12-22 11:27:05,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:27:05,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:27:05,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:27:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:27:05,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:27:05,208 INFO L87 Difference]: Start difference. First operand 63028 states and 107399 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 11:27:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:27:09,940 INFO L93 Difference]: Finished difference Result 118271 states and 205195 transitions. [2021-12-22 11:27:09,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:27:09,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2021-12-22 11:27:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:27:10,349 INFO L225 Difference]: With dead ends: 118271 [2021-12-22 11:27:10,349 INFO L226 Difference]: Without dead ends: 118078 [2021-12-22 11:27:10,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:27:10,400 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1405 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:27:10,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1423 Valid, 1615 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:27:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118078 states.