/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:25:52,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:25:52,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:25:52,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:25:52,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:25:52,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:25:52,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:25:52,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:25:52,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:25:52,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:25:52,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:25:52,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:25:52,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:25:52,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:25:52,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:25:52,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:25:52,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:25:52,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:25:52,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:25:52,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:25:52,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:25:52,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:25:52,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:25:52,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:25:52,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:25:52,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:25:52,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:25:52,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:25:52,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:25:52,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:25:52,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:25:52,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:25:52,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:25:52,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:25:52,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:25:52,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:25:52,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:25:52,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:25:52,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:25:52,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:25:52,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:25:52,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:25:52,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:25:52,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:25:52,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:25:52,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:25:52,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:25:52,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:25:52,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:25:52,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:25:52,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:25:52,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:25:52,375 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:25:52,375 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:25:52,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:25:52,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:25:52,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:25:52,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:25:52,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:25:52,376 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:25:52,377 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:25:52,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:25:52,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:25:52,377 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:25:52,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:25:52,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:25:52,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:25:52,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:25:52,567 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:25:52,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2022-01-10 06:25:52,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/172e65122/e3d965ba36064f44865fce8e5d0385ac/FLAG253437e19 [2022-01-10 06:25:53,095 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:25:53,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2022-01-10 06:25:53,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/172e65122/e3d965ba36064f44865fce8e5d0385ac/FLAG253437e19 [2022-01-10 06:25:53,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/172e65122/e3d965ba36064f44865fce8e5d0385ac [2022-01-10 06:25:53,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:25:53,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:25:53,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:25:53,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:25:53,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:25:53,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b64db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53, skipping insertion in model container [2022-01-10 06:25:53,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:25:53,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:25:53,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c[63576,63589] [2022-01-10 06:25:53,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:25:53,594 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:25:53,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:25:53,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c[63576,63589] [2022-01-10 06:25:53,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:25:53,689 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:25:53,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c[63576,63589] [2022-01-10 06:25:53,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:25:53,762 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:25:53,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53 WrapperNode [2022-01-10 06:25:53,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:25:53,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:25:53,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:25:53,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:25:53,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,848 INFO L137 Inliner]: procedures = 132, calls = 218, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1007 [2022-01-10 06:25:53,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:25:53,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:25:53,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:25:53,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:25:53,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:25:53,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:25:53,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:25:53,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:25:53,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (1/1) ... [2022-01-10 06:25:53,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:25:53,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:25:53,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:25:53,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:25:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-01-10 06:25:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-01-10 06:25:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:25:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:25:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-01-10 06:25:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-01-10 06:25:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:25:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:25:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:25:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:25:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:25:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:25:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:25:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:25:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:25:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:25:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:25:54,188 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:25:54,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:25:54,795 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:25:54,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:25:54,814 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:25:54,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:25:54 BoogieIcfgContainer [2022-01-10 06:25:54,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:25:54,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:25:54,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:25:54,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:25:54,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:25:53" (1/3) ... [2022-01-10 06:25:54,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7b1243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:25:54, skipping insertion in model container [2022-01-10 06:25:54,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:53" (2/3) ... [2022-01-10 06:25:54,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7b1243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:25:54, skipping insertion in model container [2022-01-10 06:25:54,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:25:54" (3/3) ... [2022-01-10 06:25:54,827 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2022-01-10 06:25:54,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:25:54,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:25:54,880 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:25:54,888 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 [2022-01-10 06:25:54,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:25:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 386 states, 306 states have (on average 1.565359477124183) internal successors, (479), 309 states have internal predecessors, (479), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-01-10 06:25:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 06:25:54,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:54,933 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:25:54,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:54,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:54,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1457964568, now seen corresponding path program 1 times [2022-01-10 06:25:54,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:54,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958501134] [2022-01-10 06:25:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:54,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:54,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:54,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:25:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:55,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:25:55,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:25:55,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:55,528 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:55,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958501134] [2022-01-10 06:25:55,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958501134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:55,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:55,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:25:55,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192167016] [2022-01-10 06:25:55,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:55,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:25:55,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:55,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:25:55,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:25:55,589 INFO L87 Difference]: Start difference. First operand has 386 states, 306 states have (on average 1.565359477124183) internal successors, (479), 309 states have internal predecessors, (479), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:55,651 INFO L93 Difference]: Finished difference Result 579 states and 872 transitions. [2022-01-10 06:25:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:25:55,653 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2022-01-10 06:25:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:55,662 INFO L225 Difference]: With dead ends: 579 [2022-01-10 06:25:55,662 INFO L226 Difference]: Without dead ends: 379 [2022-01-10 06:25:55,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:25:55,671 INFO L933 BasicCegarLoop]: 587 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, 587 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:55,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-01-10 06:25:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-01-10 06:25:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 300 states have (on average 1.56) internal successors, (468), 302 states have internal predecessors, (468), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-01-10 06:25:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 579 transitions. [2022-01-10 06:25:55,734 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 579 transitions. Word has length 101 [2022-01-10 06:25:55,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:55,734 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 579 transitions. [2022-01-10 06:25:55,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 579 transitions. [2022-01-10 06:25:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 06:25:55,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:55,740 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:25:55,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:55,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:55,945 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:55,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1896002271, now seen corresponding path program 1 times [2022-01-10 06:25:55,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:55,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356197633] [2022-01-10 06:25:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:55,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:55,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:55,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:55,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:25:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:56,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:56,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 06:25:56,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:56,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:56,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356197633] [2022-01-10 06:25:56,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356197633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:56,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:56,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:56,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043794562] [2022-01-10 06:25:56,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:56,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:56,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:56,359 INFO L87 Difference]: Start difference. First operand 379 states and 579 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:56,421 INFO L93 Difference]: Finished difference Result 749 states and 1148 transitions. [2022-01-10 06:25:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:56,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2022-01-10 06:25:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:56,425 INFO L225 Difference]: With dead ends: 749 [2022-01-10 06:25:56,425 INFO L226 Difference]: Without dead ends: 381 [2022-01-10 06:25:56,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:56,429 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 152 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2106 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 [2022-01-10 06:25:56,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2106 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-01-10 06:25:56,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-01-10 06:25:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 301 states have (on average 1.558139534883721) internal successors, (469), 304 states have internal predecessors, (469), 56 states have call successors, (56), 22 states have call predecessors, (56), 23 states have return successors, (57), 54 states have call predecessors, (57), 55 states have call successors, (57) [2022-01-10 06:25:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 582 transitions. [2022-01-10 06:25:56,450 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 582 transitions. Word has length 102 [2022-01-10 06:25:56,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:56,451 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 582 transitions. [2022-01-10 06:25:56,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:56,451 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 582 transitions. [2022-01-10 06:25:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 06:25:56,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:56,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:25:56,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:56,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:56,663 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1685460294, now seen corresponding path program 1 times [2022-01-10 06:25:56,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:56,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212756432] [2022-01-10 06:25:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:56,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:56,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:56,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:56,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:25:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:56,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:25:56,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 06:25:56,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:56,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:56,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212756432] [2022-01-10 06:25:56,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212756432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:56,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:56,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:56,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577884975] [2022-01-10 06:25:56,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:56,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:56,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:56,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:56,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:56,999 INFO L87 Difference]: Start difference. First operand 381 states and 582 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:57,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:57,078 INFO L93 Difference]: Finished difference Result 751 states and 1152 transitions. [2022-01-10 06:25:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:57,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2022-01-10 06:25:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:57,085 INFO L225 Difference]: With dead ends: 751 [2022-01-10 06:25:57,085 INFO L226 Difference]: Without dead ends: 383 [2022-01-10 06:25:57,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:57,089 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 151 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2095 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 [2022-01-10 06:25:57,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2095 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:57,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-01-10 06:25:57,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2022-01-10 06:25:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 302 states have (on average 1.5562913907284768) internal successors, (470), 306 states have internal predecessors, (470), 56 states have call successors, (56), 22 states have call predecessors, (56), 24 states have return successors, (61), 54 states have call predecessors, (61), 55 states have call successors, (61) [2022-01-10 06:25:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 587 transitions. [2022-01-10 06:25:57,134 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 587 transitions. Word has length 103 [2022-01-10 06:25:57,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:57,135 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 587 transitions. [2022-01-10 06:25:57,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 587 transitions. [2022-01-10 06:25:57,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 06:25:57,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:57,141 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:25:57,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:57,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:57,356 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:57,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:57,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1324695542, now seen corresponding path program 1 times [2022-01-10 06:25:57,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:57,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25380164] [2022-01-10 06:25:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:57,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:57,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:57,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:57,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:25:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:57,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:57,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:25:57,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:57,727 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:57,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25380164] [2022-01-10 06:25:57,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25380164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:57,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:57,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:57,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033382434] [2022-01-10 06:25:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:57,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:57,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:57,729 INFO L87 Difference]: Start difference. First operand 383 states and 587 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:57,827 INFO L93 Difference]: Finished difference Result 743 states and 1142 transitions. [2022-01-10 06:25:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:57,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2022-01-10 06:25:57,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:57,830 INFO L225 Difference]: With dead ends: 743 [2022-01-10 06:25:57,830 INFO L226 Difference]: Without dead ends: 383 [2022-01-10 06:25:57,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:57,831 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 150 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:57,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 2109 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:25:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-01-10 06:25:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2022-01-10 06:25:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 302 states have (on average 1.5562913907284768) internal successors, (470), 306 states have internal predecessors, (470), 56 states have call successors, (56), 22 states have call predecessors, (56), 24 states have return successors, (60), 54 states have call predecessors, (60), 55 states have call successors, (60) [2022-01-10 06:25:57,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 586 transitions. [2022-01-10 06:25:57,857 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 586 transitions. Word has length 104 [2022-01-10 06:25:57,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:57,857 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 586 transitions. [2022-01-10 06:25:57,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 586 transitions. [2022-01-10 06:25:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 06:25:57,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:57,858 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:25:57,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:58,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:58,080 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1328290861, now seen corresponding path program 2 times [2022-01-10 06:25:58,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:58,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210441409] [2022-01-10 06:25:58,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:25:58,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:58,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:58,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:58,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:25:58,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:25:58,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:25:58,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:58,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:25:58,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:58,457 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:58,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210441409] [2022-01-10 06:25:58,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210441409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:58,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:58,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 06:25:58,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400832833] [2022-01-10 06:25:58,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:58,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:25:58,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:58,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:25:58,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:25:58,459 INFO L87 Difference]: Start difference. First operand 383 states and 586 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:58,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:58,916 INFO L93 Difference]: Finished difference Result 812 states and 1250 transitions. [2022-01-10 06:25:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:25:58,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2022-01-10 06:25:58,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:58,921 INFO L225 Difference]: With dead ends: 812 [2022-01-10 06:25:58,921 INFO L226 Difference]: Without dead ends: 810 [2022-01-10 06:25:58,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-10 06:25:58,922 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 595 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:58,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 4555 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 06:25:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-01-10 06:25:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 741. [2022-01-10 06:25:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 588 states have (on average 1.566326530612245) internal successors, (921), 593 states have internal predecessors, (921), 106 states have call successors, (106), 43 states have call predecessors, (106), 46 states have return successors, (115), 104 states have call predecessors, (115), 104 states have call successors, (115) [2022-01-10 06:25:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1142 transitions. [2022-01-10 06:25:58,954 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1142 transitions. Word has length 105 [2022-01-10 06:25:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:58,955 INFO L470 AbstractCegarLoop]: Abstraction has 741 states and 1142 transitions. [2022-01-10 06:25:58,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1142 transitions. [2022-01-10 06:25:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 06:25:58,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:58,957 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:25:58,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:59,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:59,166 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:59,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1544752418, now seen corresponding path program 1 times [2022-01-10 06:25:59,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:59,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504136953] [2022-01-10 06:25:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:59,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:59,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:59,169 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:59,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:25:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:59,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:59,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:25:59,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:59,490 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:59,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504136953] [2022-01-10 06:25:59,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504136953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:59,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:59,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:59,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309857823] [2022-01-10 06:25:59,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:59,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:59,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:59,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:59,491 INFO L87 Difference]: Start difference. First operand 741 states and 1142 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:59,545 INFO L93 Difference]: Finished difference Result 1461 states and 2257 transitions. [2022-01-10 06:25:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:59,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2022-01-10 06:25:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:59,549 INFO L225 Difference]: With dead ends: 1461 [2022-01-10 06:25:59,549 INFO L226 Difference]: Without dead ends: 743 [2022-01-10 06:25:59,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:59,552 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 148 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:59,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 2111 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-01-10 06:25:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2022-01-10 06:25:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 589 states have (on average 1.565365025466893) internal successors, (922), 595 states have internal predecessors, (922), 106 states have call successors, (106), 43 states have call predecessors, (106), 47 states have return successors, (117), 104 states have call predecessors, (117), 104 states have call successors, (117) [2022-01-10 06:25:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1145 transitions. [2022-01-10 06:25:59,602 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1145 transitions. Word has length 106 [2022-01-10 06:25:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:59,603 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 1145 transitions. [2022-01-10 06:25:59,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:59,603 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1145 transitions. [2022-01-10 06:25:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 06:25:59,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:59,605 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] [2022-01-10 06:25:59,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:59,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:59,824 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:59,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:59,824 INFO L85 PathProgramCache]: Analyzing trace with hash -33758480, now seen corresponding path program 1 times [2022-01-10 06:25:59,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:59,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454302179] [2022-01-10 06:25:59,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:59,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:59,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:59,826 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:59,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:26:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:00,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:26:00,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 06:26:00,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:00,185 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:00,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454302179] [2022-01-10 06:26:00,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454302179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:00,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:00,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:26:00,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327547682] [2022-01-10 06:26:00,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:00,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:26:00,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:00,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:26:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:26:00,186 INFO L87 Difference]: Start difference. First operand 743 states and 1145 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:26:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:00,237 INFO L93 Difference]: Finished difference Result 1099 states and 1694 transitions. [2022-01-10 06:26:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:26:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2022-01-10 06:26:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:00,240 INFO L225 Difference]: With dead ends: 1099 [2022-01-10 06:26:00,240 INFO L226 Difference]: Without dead ends: 385 [2022-01-10 06:26:00,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:26:00,242 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 149 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:00,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2098 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-01-10 06:26:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2022-01-10 06:26:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 303 states have (on average 1.5544554455445545) internal successors, (471), 308 states have internal predecessors, (471), 56 states have call successors, (56), 22 states have call predecessors, (56), 25 states have return successors, (61), 54 states have call predecessors, (61), 55 states have call successors, (61) [2022-01-10 06:26:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 588 transitions. [2022-01-10 06:26:00,252 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 588 transitions. Word has length 107 [2022-01-10 06:26:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:00,253 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 588 transitions. [2022-01-10 06:26:00,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:26:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 588 transitions. [2022-01-10 06:26:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 06:26:00,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:00,254 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:00,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:00,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:00,471 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash 190039687, now seen corresponding path program 1 times [2022-01-10 06:26:00,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:00,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424947898] [2022-01-10 06:26:00,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:00,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:00,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:00,473 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:00,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:26:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:00,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:26:00,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 06:26:00,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:00,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:00,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424947898] [2022-01-10 06:26:00,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424947898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:00,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:00,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:26:00,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164348756] [2022-01-10 06:26:00,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:00,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:26:00,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:00,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:26:00,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:26:00,788 INFO L87 Difference]: Start difference. First operand 385 states and 588 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:26:00,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:00,854 INFO L93 Difference]: Finished difference Result 745 states and 1145 transitions. [2022-01-10 06:26:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:26:00,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2022-01-10 06:26:00,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:00,857 INFO L225 Difference]: With dead ends: 745 [2022-01-10 06:26:00,857 INFO L226 Difference]: Without dead ends: 387 [2022-01-10 06:26:00,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:26:00,860 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 147 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:00,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2100 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:00,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-01-10 06:26:00,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-01-10 06:26:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 304 states have (on average 1.5526315789473684) internal successors, (472), 310 states have internal predecessors, (472), 56 states have call successors, (56), 22 states have call predecessors, (56), 26 states have return successors, (65), 54 states have call predecessors, (65), 55 states have call successors, (65) [2022-01-10 06:26:00,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 593 transitions. [2022-01-10 06:26:00,871 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 593 transitions. Word has length 107 [2022-01-10 06:26:00,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:00,872 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 593 transitions. [2022-01-10 06:26:00,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:26:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 593 transitions. [2022-01-10 06:26:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 06:26:00,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:00,875 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:00,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:01,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:01,085 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash -691308576, now seen corresponding path program 1 times [2022-01-10 06:26:01,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:01,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808040869] [2022-01-10 06:26:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:01,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:01,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:01,088 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:01,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:26:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:01,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:01,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:01,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:01,393 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:01,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808040869] [2022-01-10 06:26:01,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808040869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:01,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:01,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:01,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651636051] [2022-01-10 06:26:01,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:01,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:01,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:01,395 INFO L87 Difference]: Start difference. First operand 387 states and 593 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:01,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:01,408 INFO L93 Difference]: Finished difference Result 577 states and 864 transitions. [2022-01-10 06:26:01,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:01,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-01-10 06:26:01,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:01,411 INFO L225 Difference]: With dead ends: 577 [2022-01-10 06:26:01,411 INFO L226 Difference]: Without dead ends: 390 [2022-01-10 06:26:01,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:01,412 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:01,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1152 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-01-10 06:26:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2022-01-10 06:26:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 306 states have (on average 1.5490196078431373) internal successors, (474), 312 states have internal predecessors, (474), 56 states have call successors, (56), 22 states have call predecessors, (56), 26 states have return successors, (65), 54 states have call predecessors, (65), 55 states have call successors, (65) [2022-01-10 06:26:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 595 transitions. [2022-01-10 06:26:01,423 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 595 transitions. Word has length 108 [2022-01-10 06:26:01,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:01,423 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 595 transitions. [2022-01-10 06:26:01,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 595 transitions. [2022-01-10 06:26:01,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 06:26:01,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:01,424 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:01,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:01,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:01,637 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:01,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:01,637 INFO L85 PathProgramCache]: Analyzing trace with hash -921810903, now seen corresponding path program 1 times [2022-01-10 06:26:01,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:01,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706334422] [2022-01-10 06:26:01,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:01,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:01,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:01,639 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:01,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:26:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:01,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:01,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:01,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:01,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:01,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706334422] [2022-01-10 06:26:01,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706334422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:01,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:01,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:01,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506808726] [2022-01-10 06:26:01,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:01,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:01,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:01,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:01,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:01,995 INFO L87 Difference]: Start difference. First operand 389 states and 595 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:02,014 INFO L93 Difference]: Finished difference Result 822 states and 1276 transitions. [2022-01-10 06:26:02,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:02,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2022-01-10 06:26:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:02,017 INFO L225 Difference]: With dead ends: 822 [2022-01-10 06:26:02,017 INFO L226 Difference]: Without dead ends: 464 [2022-01-10 06:26:02,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:02,018 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 134 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:02,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1137 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-01-10 06:26:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 456. [2022-01-10 06:26:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 359 states have (on average 1.5682451253481895) internal successors, (563), 365 states have internal predecessors, (563), 70 states have call successors, (70), 22 states have call predecessors, (70), 26 states have return successors, (81), 68 states have call predecessors, (81), 69 states have call successors, (81) [2022-01-10 06:26:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 714 transitions. [2022-01-10 06:26:02,034 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 714 transitions. Word has length 114 [2022-01-10 06:26:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:02,034 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 714 transitions. [2022-01-10 06:26:02,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 714 transitions. [2022-01-10 06:26:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 06:26:02,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:02,036 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:02,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:02,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:02,246 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:02,246 INFO L85 PathProgramCache]: Analyzing trace with hash -926043522, now seen corresponding path program 1 times [2022-01-10 06:26:02,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:02,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903745815] [2022-01-10 06:26:02,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:02,247 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:02,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:02,248 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:02,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:26:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:02,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:26:02,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:02,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:26:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:02,760 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:02,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903745815] [2022-01-10 06:26:02,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903745815] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:26:02,760 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:26:02,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:26:02,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227646919] [2022-01-10 06:26:02,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:26:02,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:26:02,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:02,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:26:02,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:26:02,762 INFO L87 Difference]: Start difference. First operand 456 states and 714 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-01-10 06:26:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:02,990 INFO L93 Difference]: Finished difference Result 1085 states and 1755 transitions. [2022-01-10 06:26:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:26:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2022-01-10 06:26:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:02,995 INFO L225 Difference]: With dead ends: 1085 [2022-01-10 06:26:02,995 INFO L226 Difference]: Without dead ends: 898 [2022-01-10 06:26:02,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:26:02,996 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 528 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:02,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 2990 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:26:02,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-01-10 06:26:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 874. [2022-01-10 06:26:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 698 states have (on average 1.6275071633237823) internal successors, (1136), 704 states have internal predecessors, (1136), 149 states have call successors, (149), 22 states have call predecessors, (149), 26 states have return successors, (170), 147 states have call predecessors, (170), 148 states have call successors, (170) [2022-01-10 06:26:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1455 transitions. [2022-01-10 06:26:03,029 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1455 transitions. Word has length 115 [2022-01-10 06:26:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:03,029 INFO L470 AbstractCegarLoop]: Abstraction has 874 states and 1455 transitions. [2022-01-10 06:26:03,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-01-10 06:26:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1455 transitions. [2022-01-10 06:26:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:26:03,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:03,033 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:03,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:03,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:03,243 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:03,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:03,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2115641189, now seen corresponding path program 1 times [2022-01-10 06:26:03,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:03,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484034898] [2022-01-10 06:26:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:03,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:03,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:03,245 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:03,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:26:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:03,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:03,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:03,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:03,556 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:03,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484034898] [2022-01-10 06:26:03,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484034898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:03,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:03,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:03,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449594261] [2022-01-10 06:26:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:03,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:03,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:03,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:03,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:03,557 INFO L87 Difference]: Start difference. First operand 874 states and 1455 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:03,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:03,597 INFO L93 Difference]: Finished difference Result 2103 states and 3547 transitions. [2022-01-10 06:26:03,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:03,598 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-01-10 06:26:03,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:03,603 INFO L225 Difference]: With dead ends: 2103 [2022-01-10 06:26:03,603 INFO L226 Difference]: Without dead ends: 1297 [2022-01-10 06:26:03,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:03,606 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 132 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:03,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1184 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-01-10 06:26:03,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1289. [2022-01-10 06:26:03,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1034 states have (on average 1.6402321083172147) internal successors, (1696), 1040 states have internal predecessors, (1696), 228 states have call successors, (228), 22 states have call predecessors, (228), 26 states have return successors, (259), 226 states have call predecessors, (259), 227 states have call successors, (259) [2022-01-10 06:26:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 2183 transitions. [2022-01-10 06:26:03,668 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 2183 transitions. Word has length 121 [2022-01-10 06:26:03,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:03,668 INFO L470 AbstractCegarLoop]: Abstraction has 1289 states and 2183 transitions. [2022-01-10 06:26:03,668 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 2183 transitions. [2022-01-10 06:26:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 06:26:03,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:03,674 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:03,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:03,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:03,883 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:03,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1259776489, now seen corresponding path program 1 times [2022-01-10 06:26:03,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:03,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670626865] [2022-01-10 06:26:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:03,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:03,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:03,886 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:03,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:26:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:04,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:04,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:04,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:04,217 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:04,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670626865] [2022-01-10 06:26:04,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670626865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:04,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:04,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:04,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197074052] [2022-01-10 06:26:04,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:04,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:04,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:04,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:04,218 INFO L87 Difference]: Start difference. First operand 1289 states and 2183 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:04,279 INFO L93 Difference]: Finished difference Result 3117 states and 5309 transitions. [2022-01-10 06:26:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2022-01-10 06:26:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:04,288 INFO L225 Difference]: With dead ends: 3117 [2022-01-10 06:26:04,288 INFO L226 Difference]: Without dead ends: 1949 [2022-01-10 06:26:04,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:04,293 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 130 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:04,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1168 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2022-01-10 06:26:04,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1941. [2022-01-10 06:26:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1567 states have (on average 1.6483726866624122) internal successors, (2583), 1573 states have internal predecessors, (2583), 347 states have call successors, (347), 22 states have call predecessors, (347), 26 states have return successors, (378), 345 states have call predecessors, (378), 346 states have call successors, (378) [2022-01-10 06:26:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 3308 transitions. [2022-01-10 06:26:04,357 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 3308 transitions. Word has length 122 [2022-01-10 06:26:04,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:04,358 INFO L470 AbstractCegarLoop]: Abstraction has 1941 states and 3308 transitions. [2022-01-10 06:26:04,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 3308 transitions. [2022-01-10 06:26:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 06:26:04,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:04,365 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:04,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-01-10 06:26:04,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:04,576 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:04,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:04,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1328199485, now seen corresponding path program 1 times [2022-01-10 06:26:04,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:04,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930614623] [2022-01-10 06:26:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:04,577 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:04,578 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:04,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 06:26:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:04,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:04,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:04,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:04,892 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:04,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930614623] [2022-01-10 06:26:04,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930614623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:04,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:04,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:04,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855209747] [2022-01-10 06:26:04,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:04,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:04,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:04,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:04,894 INFO L87 Difference]: Start difference. First operand 1941 states and 3308 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:04,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:04,980 INFO L93 Difference]: Finished difference Result 4647 states and 7977 transitions. [2022-01-10 06:26:04,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:04,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-01-10 06:26:04,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:04,992 INFO L225 Difference]: With dead ends: 4647 [2022-01-10 06:26:04,992 INFO L226 Difference]: Without dead ends: 2952 [2022-01-10 06:26:04,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:04,999 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 128 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:04,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1162 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:05,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2022-01-10 06:26:05,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2944. [2022-01-10 06:26:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2408 states have (on average 1.6549003322259137) internal successors, (3985), 2414 states have internal predecessors, (3985), 509 states have call successors, (509), 22 states have call predecessors, (509), 26 states have return successors, (556), 507 states have call predecessors, (556), 508 states have call successors, (556) [2022-01-10 06:26:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5050 transitions. [2022-01-10 06:26:05,108 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5050 transitions. Word has length 123 [2022-01-10 06:26:05,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:05,109 INFO L470 AbstractCegarLoop]: Abstraction has 2944 states and 5050 transitions. [2022-01-10 06:26:05,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5050 transitions. [2022-01-10 06:26:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 06:26:05,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:05,119 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:05,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:05,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:05,329 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:05,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1022817930, now seen corresponding path program 1 times [2022-01-10 06:26:05,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:05,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939438563] [2022-01-10 06:26:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:05,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:05,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:05,331 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:05,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 06:26:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:05,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:05,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:05,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:05,642 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:05,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939438563] [2022-01-10 06:26:05,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939438563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:05,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:05,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:05,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455198199] [2022-01-10 06:26:05,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:05,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:05,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:05,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:05,644 INFO L87 Difference]: Start difference. First operand 2944 states and 5050 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:05,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:05,768 INFO L93 Difference]: Finished difference Result 7071 states and 12209 transitions. [2022-01-10 06:26:05,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:05,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-01-10 06:26:05,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:05,794 INFO L225 Difference]: With dead ends: 7071 [2022-01-10 06:26:05,794 INFO L226 Difference]: Without dead ends: 4577 [2022-01-10 06:26:05,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:05,805 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 126 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:05,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1162 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4577 states. [2022-01-10 06:26:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4577 to 4569. [2022-01-10 06:26:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4569 states, 3788 states have (on average 1.6594508975712776) internal successors, (6286), 3794 states have internal predecessors, (6286), 754 states have call successors, (754), 22 states have call predecessors, (754), 26 states have return successors, (827), 752 states have call predecessors, (827), 753 states have call successors, (827) [2022-01-10 06:26:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 7867 transitions. [2022-01-10 06:26:06,071 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 7867 transitions. Word has length 124 [2022-01-10 06:26:06,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:06,071 INFO L470 AbstractCegarLoop]: Abstraction has 4569 states and 7867 transitions. [2022-01-10 06:26:06,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 7867 transitions. [2022-01-10 06:26:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 06:26:06,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:06,087 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:06,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:06,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:06,303 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2087014137, now seen corresponding path program 1 times [2022-01-10 06:26:06,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:06,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532262620] [2022-01-10 06:26:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:06,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:06,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:06,305 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:06,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 06:26:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:06,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:06,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:06,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:06,641 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:06,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532262620] [2022-01-10 06:26:06,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532262620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:06,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:06,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:06,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690652381] [2022-01-10 06:26:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:06,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:06,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:06,642 INFO L87 Difference]: Start difference. First operand 4569 states and 7867 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:06,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:06,853 INFO L93 Difference]: Finished difference Result 11117 states and 19269 transitions. [2022-01-10 06:26:06,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:06,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2022-01-10 06:26:06,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:06,894 INFO L225 Difference]: With dead ends: 11117 [2022-01-10 06:26:06,894 INFO L226 Difference]: Without dead ends: 7310 [2022-01-10 06:26:06,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:06,904 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 124 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:06,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1166 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-01-10 06:26:07,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 7302. [2022-01-10 06:26:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 6028 states have (on average 1.65743198407432) internal successors, (9991), 6034 states have internal predecessors, (9991), 1247 states have call successors, (1247), 22 states have call predecessors, (1247), 26 states have return successors, (1364), 1245 states have call predecessors, (1364), 1246 states have call successors, (1364) [2022-01-10 06:26:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 12602 transitions. [2022-01-10 06:26:07,199 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 12602 transitions. Word has length 125 [2022-01-10 06:26:07,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:07,200 INFO L470 AbstractCegarLoop]: Abstraction has 7302 states and 12602 transitions. [2022-01-10 06:26:07,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:07,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 12602 transitions. [2022-01-10 06:26:07,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 06:26:07,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:07,223 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:07,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:07,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:07,431 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:07,432 INFO L85 PathProgramCache]: Analyzing trace with hash 87237326, now seen corresponding path program 1 times [2022-01-10 06:26:07,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:07,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504928412] [2022-01-10 06:26:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:07,432 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:07,433 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:07,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 06:26:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:07,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:07,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:07,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:07,739 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:07,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504928412] [2022-01-10 06:26:07,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504928412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:07,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:07,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:07,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72956835] [2022-01-10 06:26:07,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:07,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:07,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:07,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:07,740 INFO L87 Difference]: Start difference. First operand 7302 states and 12602 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:08,040 INFO L93 Difference]: Finished difference Result 18452 states and 32042 transitions. [2022-01-10 06:26:08,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:08,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-01-10 06:26:08,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:08,084 INFO L225 Difference]: With dead ends: 18452 [2022-01-10 06:26:08,084 INFO L226 Difference]: Without dead ends: 12289 [2022-01-10 06:26:08,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:08,107 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 122 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:08,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1168 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:08,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12289 states. [2022-01-10 06:26:08,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12289 to 12281. [2022-01-10 06:26:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12281 states, 10185 states have (on average 1.657437407952872) internal successors, (16881), 10191 states have internal predecessors, (16881), 2069 states have call successors, (2069), 22 states have call predecessors, (2069), 26 states have return successors, (2264), 2067 states have call predecessors, (2264), 2068 states have call successors, (2264) [2022-01-10 06:26:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12281 states to 12281 states and 21214 transitions. [2022-01-10 06:26:08,594 INFO L78 Accepts]: Start accepts. Automaton has 12281 states and 21214 transitions. Word has length 126 [2022-01-10 06:26:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:08,595 INFO L470 AbstractCegarLoop]: Abstraction has 12281 states and 21214 transitions. [2022-01-10 06:26:08,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 12281 states and 21214 transitions. [2022-01-10 06:26:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 06:26:08,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:08,614 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:08,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:08,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:08,825 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1424852199, now seen corresponding path program 1 times [2022-01-10 06:26:08,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:08,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354000634] [2022-01-10 06:26:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:08,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:08,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:08,829 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:08,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 06:26:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:09,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:09,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:09,172 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:09,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:09,173 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:09,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354000634] [2022-01-10 06:26:09,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354000634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:09,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:09,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:09,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858602493] [2022-01-10 06:26:09,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:09,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:09,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:09,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:09,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:09,174 INFO L87 Difference]: Start difference. First operand 12281 states and 21214 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:09,734 INFO L93 Difference]: Finished difference Result 29410 states and 50726 transitions. [2022-01-10 06:26:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:09,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-01-10 06:26:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:09,806 INFO L225 Difference]: With dead ends: 29410 [2022-01-10 06:26:09,806 INFO L226 Difference]: Without dead ends: 19242 [2022-01-10 06:26:09,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:09,844 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 120 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:09,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1137 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:09,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19242 states. [2022-01-10 06:26:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19242 to 19234. [2022-01-10 06:26:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19234 states, 15935 states have (on average 1.6330718544085348) internal successors, (26023), 15941 states have internal predecessors, (26023), 3272 states have call successors, (3272), 22 states have call predecessors, (3272), 26 states have return successors, (3611), 3270 states have call predecessors, (3611), 3271 states have call successors, (3611) [2022-01-10 06:26:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19234 states to 19234 states and 32906 transitions. [2022-01-10 06:26:10,626 INFO L78 Accepts]: Start accepts. Automaton has 19234 states and 32906 transitions. Word has length 127 [2022-01-10 06:26:10,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:10,626 INFO L470 AbstractCegarLoop]: Abstraction has 19234 states and 32906 transitions. [2022-01-10 06:26:10,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:10,626 INFO L276 IsEmpty]: Start isEmpty. Operand 19234 states and 32906 transitions. [2022-01-10 06:26:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 06:26:10,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:10,648 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:10,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:10,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:10,867 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:10,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:10,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1375617167, now seen corresponding path program 1 times [2022-01-10 06:26:10,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:10,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429971218] [2022-01-10 06:26:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:10,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:10,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:10,880 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:10,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 06:26:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:11,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:11,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:11,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:11,188 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:11,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429971218] [2022-01-10 06:26:11,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429971218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:11,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:11,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:11,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502054072] [2022-01-10 06:26:11,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:11,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:11,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:11,189 INFO L87 Difference]: Start difference. First operand 19234 states and 32906 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:12,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:12,219 INFO L93 Difference]: Finished difference Result 50842 states and 87306 transitions. [2022-01-10 06:26:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:12,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-01-10 06:26:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:12,319 INFO L225 Difference]: With dead ends: 50842 [2022-01-10 06:26:12,319 INFO L226 Difference]: Without dead ends: 34363 [2022-01-10 06:26:12,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:12,357 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 118 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:12,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1167 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34363 states. [2022-01-10 06:26:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34363 to 34355. [2022-01-10 06:26:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34355 states, 28606 states have (on average 1.6299377752918969) internal successors, (46626), 28612 states have internal predecessors, (46626), 5722 states have call successors, (5722), 22 states have call predecessors, (5722), 26 states have return successors, (6335), 5720 states have call predecessors, (6335), 5721 states have call successors, (6335) [2022-01-10 06:26:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34355 states to 34355 states and 58683 transitions. [2022-01-10 06:26:13,796 INFO L78 Accepts]: Start accepts. Automaton has 34355 states and 58683 transitions. Word has length 128 [2022-01-10 06:26:13,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:13,796 INFO L470 AbstractCegarLoop]: Abstraction has 34355 states and 58683 transitions. [2022-01-10 06:26:13,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:13,796 INFO L276 IsEmpty]: Start isEmpty. Operand 34355 states and 58683 transitions. [2022-01-10 06:26:13,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-10 06:26:13,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:13,821 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:13,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:14,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:14,032 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1370742017, now seen corresponding path program 1 times [2022-01-10 06:26:14,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:14,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974307245] [2022-01-10 06:26:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:14,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:14,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:14,034 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:14,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 06:26:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:14,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:14,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:14,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:14,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:14,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974307245] [2022-01-10 06:26:14,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974307245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:14,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:14,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:14,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785643569] [2022-01-10 06:26:14,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:14,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:14,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:14,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:14,391 INFO L87 Difference]: Start difference. First operand 34355 states and 58683 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:16,141 INFO L93 Difference]: Finished difference Result 93714 states and 160568 transitions. [2022-01-10 06:26:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:16,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-01-10 06:26:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:16,361 INFO L225 Difference]: With dead ends: 93714 [2022-01-10 06:26:16,361 INFO L226 Difference]: Without dead ends: 63030 [2022-01-10 06:26:16,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:16,593 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 116 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:16,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1168 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63030 states. [2022-01-10 06:26:18,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63030 to 63022. [2022-01-10 06:26:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63022 states, 52760 states have (on average 1.6257960576194086) internal successors, (85777), 52766 states have internal predecessors, (85777), 10235 states have call successors, (10235), 22 states have call predecessors, (10235), 26 states have return successors, (11380), 10233 states have call predecessors, (11380), 10234 states have call successors, (11380) [2022-01-10 06:26:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63022 states to 63022 states and 107392 transitions. [2022-01-10 06:26:19,011 INFO L78 Accepts]: Start accepts. Automaton has 63022 states and 107392 transitions. Word has length 129 [2022-01-10 06:26:19,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:19,011 INFO L470 AbstractCegarLoop]: Abstraction has 63022 states and 107392 transitions. [2022-01-10 06:26:19,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 63022 states and 107392 transitions. [2022-01-10 06:26:19,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 06:26:19,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:19,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:19,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:19,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:19,250 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:19,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1992082129, now seen corresponding path program 1 times [2022-01-10 06:26:19,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:19,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982496704] [2022-01-10 06:26:19,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:19,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:19,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:19,252 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:19,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 06:26:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:19,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:19,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:19,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:19,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982496704] [2022-01-10 06:26:19,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982496704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:19,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:19,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:19,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729764603] [2022-01-10 06:26:19,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:19,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:19,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:19,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:19,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:19,611 INFO L87 Difference]: Start difference. First operand 63022 states and 107392 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:22,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:22,745 INFO L93 Difference]: Finished difference Result 118090 states and 201633 transitions. [2022-01-10 06:26:22,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:22,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-01-10 06:26:22,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:23,155 INFO L225 Difference]: With dead ends: 118090 [2022-01-10 06:26:23,155 INFO L226 Difference]: Without dead ends: 117903 [2022-01-10 06:26:23,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:23,310 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 114 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:23,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1167 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:23,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117903 states. [2022-01-10 06:26:27,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117903 to 117895. [2022-01-10 06:26:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117895 states, 99265 states have (on average 1.6205913463960107) internal successors, (160868), 99271 states have internal predecessors, (160868), 18603 states have call successors, (18603), 22 states have call predecessors, (18603), 26 states have return successors, (20794), 18601 states have call predecessors, (20794), 18602 states have call successors, (20794) [2022-01-10 06:26:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117895 states to 117895 states and 200265 transitions. [2022-01-10 06:26:28,136 INFO L78 Accepts]: Start accepts. Automaton has 117895 states and 200265 transitions. Word has length 130 [2022-01-10 06:26:28,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:28,136 INFO L470 AbstractCegarLoop]: Abstraction has 117895 states and 200265 transitions. [2022-01-10 06:26:28,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:28,136 INFO L276 IsEmpty]: Start isEmpty. Operand 117895 states and 200265 transitions. [2022-01-10 06:26:28,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 06:26:28,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:28,166 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:26:28,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:28,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:28,376 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:28,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1408955328, now seen corresponding path program 1 times [2022-01-10 06:26:28,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:28,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813672602] [2022-01-10 06:26:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:28,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:28,378 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:28,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 06:26:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:28,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:26:28,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:26:28,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:26:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-10 06:26:29,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813672602] [2022-01-10 06:26:29,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813672602] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:26:29,305 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:26:29,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-10 06:26:29,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013331693] [2022-01-10 06:26:29,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:26:29,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:26:29,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:26:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:26:29,306 INFO L87 Difference]: Start difference. First operand 117895 states and 200265 transitions. Second operand has 16 states, 16 states have (on average 10.25) internal successors, (164), 14 states have internal predecessors, (164), 4 states have call successors, (29), 6 states have call predecessors, (29), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2022-01-10 06:26:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:42,043 INFO L93 Difference]: Finished difference Result 347253 states and 596573 transitions. [2022-01-10 06:26:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:26:42,043 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 14 states have internal predecessors, (164), 4 states have call successors, (29), 6 states have call predecessors, (29), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) Word has length 131 [2022-01-10 06:26:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:44,055 INFO L225 Difference]: With dead ends: 347253 [2022-01-10 06:26:44,055 INFO L226 Difference]: Without dead ends: 347072 [2022-01-10 06:26:44,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2022-01-10 06:26:44,216 INFO L933 BasicCegarLoop]: 750 mSDtfsCounter, 1800 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 4341 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 3326 SdHoareTripleChecker+Invalid, 4798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 4341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:44,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1865 Valid, 3326 Invalid, 4798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 4341 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-10 06:26:44,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347072 states.