/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_spec8_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:29:09,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:29:09,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:29:09,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:29:09,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:29:09,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:29:09,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:29:09,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:29:09,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:29:09,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:29:09,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:29:09,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:29:09,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:29:09,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:29:09,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:29:09,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:29:09,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:29:09,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:29:09,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:29:09,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:29:09,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:29:09,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:29:09,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:29:09,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:29:09,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:29:09,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:29:09,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:29:09,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:29:09,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:29:09,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:29:09,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:29:09,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:29:09,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:29:09,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:29:09,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:29:09,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:29:09,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:29:09,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:29:09,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:29:09,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:29:09,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:29:09,155 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 06:29:09,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:29:09,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:29:09,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:29:09,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:29:09,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:29:09,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:29:09,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:29:09,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:29:09,170 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:29:09,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:29:09,171 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:29:09,172 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:29:09,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:29:09,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:29:09,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:29:09,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:29:09,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:29:09,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:29:09,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:29:09,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:29:09,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:29:09,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:29:09,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:29:09,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:29:09,337 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:29:09,338 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:29:09,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product20.cil.c [2022-01-10 06:29:09,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/177d607a9/c5ea21c5e2494d8fb0962e3e399f369e/FLAGb31e6115c [2022-01-10 06:29:09,799 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:29:09,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product20.cil.c [2022-01-10 06:29:09,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/177d607a9/c5ea21c5e2494d8fb0962e3e399f369e/FLAGb31e6115c [2022-01-10 06:29:10,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/177d607a9/c5ea21c5e2494d8fb0962e3e399f369e [2022-01-10 06:29:10,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:29:10,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:29:10,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:29:10,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:29:10,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:29:10,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3991b92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10, skipping insertion in model container [2022-01-10 06:29:10,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:29:10,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:29:10,398 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_spec8_product20.cil.c[19452,19465] [2022-01-10 06:29:10,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:29:10,516 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:29:10,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:29:10,569 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_spec8_product20.cil.c[19452,19465] [2022-01-10 06:29:10,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:29:10,615 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:29:10,646 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_spec8_product20.cil.c[19452,19465] [2022-01-10 06:29:10,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:29:10,733 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:29:10,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10 WrapperNode [2022-01-10 06:29:10,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:29:10,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:29:10,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:29:10,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:29:10,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,822 INFO L137 Inliner]: procedures = 131, calls = 220, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 920 [2022-01-10 06:29:10,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:29:10,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:29:10,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:29:10,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:29:10,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:29:10,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:29:10,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:29:10,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:29:10,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (1/1) ... [2022-01-10 06:29:10,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:29:10,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:29:10,916 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 06:29:10,933 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 06:29:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:29:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:29:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-01-10 06:29:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-01-10 06:29:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:29:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:29:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-01-10 06:29:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-01-10 06:29:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:29:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:29:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:29:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:29:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:29:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:29:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-01-10 06:29:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:29:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:29:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:29:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:29:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:29:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:29:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:29:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:29:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:29:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-01-10 06:29:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-01-10 06:29:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:29:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:29:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:29:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:29:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:29:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:29:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:29:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:29:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:29:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:29:11,103 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:29:11,105 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:29:11,694 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:29:11,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:29:11,707 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:29:11,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:29:11 BoogieIcfgContainer [2022-01-10 06:29:11,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:29:11,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:29:11,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:29:11,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:29:11,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:29:10" (1/3) ... [2022-01-10 06:29:11,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddf6cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:29:11, skipping insertion in model container [2022-01-10 06:29:11,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:29:10" (2/3) ... [2022-01-10 06:29:11,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddf6cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:29:11, skipping insertion in model container [2022-01-10 06:29:11,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:29:11" (3/3) ... [2022-01-10 06:29:11,723 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product20.cil.c [2022-01-10 06:29:11,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:29:11,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:29:11,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:29:11,776 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 06:29:11,776 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:29:11,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 365 states, 287 states have (on average 1.578397212543554) internal successors, (453), 292 states have internal predecessors, (453), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-01-10 06:29:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 06:29:11,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:11,825 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:11,825 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:11,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:11,829 INFO L85 PathProgramCache]: Analyzing trace with hash 288794369, now seen corresponding path program 1 times [2022-01-10 06:29:11,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:11,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916036521] [2022-01-10 06:29:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:11,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:11,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:11,843 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 06:29:11,844 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 06:29:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:12,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:29:12,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-01-10 06:29:12,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:12,305 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:12,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916036521] [2022-01-10 06:29:12,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916036521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:12,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:12,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:29:12,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191662086] [2022-01-10 06:29:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:12,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:29:12,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:29:12,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:29:12,330 INFO L87 Difference]: Start difference. First operand has 365 states, 287 states have (on average 1.578397212543554) internal successors, (453), 292 states have internal predecessors, (453), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:12,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:12,371 INFO L93 Difference]: Finished difference Result 537 states and 812 transitions. [2022-01-10 06:29:12,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:29:12,374 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-01-10 06:29:12,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:12,385 INFO L225 Difference]: With dead ends: 537 [2022-01-10 06:29:12,385 INFO L226 Difference]: Without dead ends: 358 [2022-01-10 06:29:12,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 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 06:29:12,392 INFO L933 BasicCegarLoop]: 557 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, 557 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 06:29:12,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-01-10 06:29:12,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2022-01-10 06:29:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 281 states have (on average 1.5729537366548043) internal successors, (442), 285 states have internal predecessors, (442), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-01-10 06:29:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 549 transitions. [2022-01-10 06:29:12,447 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 549 transitions. Word has length 98 [2022-01-10 06:29:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:12,448 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 549 transitions. [2022-01-10 06:29:12,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 549 transitions. [2022-01-10 06:29:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 06:29:12,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:12,452 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:12,478 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 06:29:12,662 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 06:29:12,662 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:12,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash -784061991, now seen corresponding path program 1 times [2022-01-10 06:29:12,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:12,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673640417] [2022-01-10 06:29:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:12,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:12,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:12,668 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 06:29:12,670 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 06:29:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:12,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:29:12,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 06:29:13,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:13,057 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:13,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673640417] [2022-01-10 06:29:13,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673640417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:13,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:13,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:29:13,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446656536] [2022-01-10 06:29:13,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:13,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:29:13,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:13,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:29:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:13,059 INFO L87 Difference]: Start difference. First operand 358 states and 549 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:13,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:13,120 INFO L93 Difference]: Finished difference Result 707 states and 1088 transitions. [2022-01-10 06:29:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:29:13,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2022-01-10 06:29:13,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:13,125 INFO L225 Difference]: With dead ends: 707 [2022-01-10 06:29:13,125 INFO L226 Difference]: Without dead ends: 360 [2022-01-10 06:29:13,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 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 06:29:13,128 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 152 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1986 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 06:29:13,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1986 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-01-10 06:29:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-01-10 06:29:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 282 states have (on average 1.570921985815603) internal successors, (443), 287 states have internal predecessors, (443), 54 states have call successors, (54), 22 states have call predecessors, (54), 23 states have return successors, (55), 52 states have call predecessors, (55), 53 states have call successors, (55) [2022-01-10 06:29:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 552 transitions. [2022-01-10 06:29:13,161 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 552 transitions. Word has length 99 [2022-01-10 06:29:13,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:13,162 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 552 transitions. [2022-01-10 06:29:13,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 552 transitions. [2022-01-10 06:29:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 06:29:13,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:13,164 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:13,174 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 06:29:13,374 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 06:29:13,374 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash 709334951, now seen corresponding path program 1 times [2022-01-10 06:29:13,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:13,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918353568] [2022-01-10 06:29:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:13,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:13,391 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 06:29:13,392 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 06:29:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:13,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:29:13,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 06:29:13,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:13,769 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:13,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918353568] [2022-01-10 06:29:13,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918353568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:13,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:13,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:29:13,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19895763] [2022-01-10 06:29:13,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:13,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:29:13,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:29:13,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:13,771 INFO L87 Difference]: Start difference. First operand 360 states and 552 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:13,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:13,830 INFO L93 Difference]: Finished difference Result 709 states and 1092 transitions. [2022-01-10 06:29:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:29:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2022-01-10 06:29:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:13,834 INFO L225 Difference]: With dead ends: 709 [2022-01-10 06:29:13,834 INFO L226 Difference]: Without dead ends: 362 [2022-01-10 06:29:13,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 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 06:29:13,838 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 151 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1975 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 06:29:13,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1975 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-01-10 06:29:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-01-10 06:29:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 283 states have (on average 1.568904593639576) internal successors, (444), 289 states have internal predecessors, (444), 54 states have call successors, (54), 22 states have call predecessors, (54), 24 states have return successors, (59), 52 states have call predecessors, (59), 53 states have call successors, (59) [2022-01-10 06:29:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 557 transitions. [2022-01-10 06:29:13,876 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 557 transitions. Word has length 100 [2022-01-10 06:29:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:13,876 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 557 transitions. [2022-01-10 06:29:13,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 557 transitions. [2022-01-10 06:29:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 06:29:13,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:13,879 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:13,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-01-10 06:29:14,089 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 06:29:14,090 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash -450905863, now seen corresponding path program 1 times [2022-01-10 06:29:14,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:14,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081062730] [2022-01-10 06:29:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:14,092 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:14,096 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 06:29:14,097 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 06:29:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:14,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:29:14,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-01-10 06:29:14,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:14,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:14,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081062730] [2022-01-10 06:29:14,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081062730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:14,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:14,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:29:14,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457809660] [2022-01-10 06:29:14,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:14,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:29:14,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:14,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:29:14,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:14,461 INFO L87 Difference]: Start difference. First operand 362 states and 557 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:14,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:14,517 INFO L93 Difference]: Finished difference Result 701 states and 1082 transitions. [2022-01-10 06:29:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:29:14,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2022-01-10 06:29:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:14,519 INFO L225 Difference]: With dead ends: 701 [2022-01-10 06:29:14,520 INFO L226 Difference]: Without dead ends: 362 [2022-01-10 06:29:14,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 06:29:14,521 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 150 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:29:14,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 1989 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-01-10 06:29:14,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-01-10 06:29:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 283 states have (on average 1.568904593639576) internal successors, (444), 289 states have internal predecessors, (444), 54 states have call successors, (54), 22 states have call predecessors, (54), 24 states have return successors, (58), 52 states have call predecessors, (58), 53 states have call successors, (58) [2022-01-10 06:29:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 556 transitions. [2022-01-10 06:29:14,532 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 556 transitions. Word has length 101 [2022-01-10 06:29:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:14,532 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 556 transitions. [2022-01-10 06:29:14,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 556 transitions. [2022-01-10 06:29:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 06:29:14,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:14,534 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:14,545 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 06:29:14,743 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 06:29:14,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:14,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:14,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1063005285, now seen corresponding path program 2 times [2022-01-10 06:29:14,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:14,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300781339] [2022-01-10 06:29:14,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:29:14,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:14,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:14,746 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 06:29:14,748 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 06:29:14,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:29:14,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:29:14,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:14,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 06:29:15,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:15,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:15,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300781339] [2022-01-10 06:29:15,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300781339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:15,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:15,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:15,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291488798] [2022-01-10 06:29:15,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:15,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:15,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:15,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:15,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:15,031 INFO L87 Difference]: Start difference. First operand 362 states and 556 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:15,044 INFO L93 Difference]: Finished difference Result 531 states and 797 transitions. [2022-01-10 06:29:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:15,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2022-01-10 06:29:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:15,046 INFO L225 Difference]: With dead ends: 531 [2022-01-10 06:29:15,046 INFO L226 Difference]: Without dead ends: 365 [2022-01-10 06:29:15,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 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 06:29:15,047 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 1 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1092 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 06:29:15,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1092 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-01-10 06:29:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 364. [2022-01-10 06:29:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 285 states have (on average 1.5649122807017544) internal successors, (446), 291 states have internal predecessors, (446), 54 states have call successors, (54), 22 states have call predecessors, (54), 24 states have return successors, (58), 52 states have call predecessors, (58), 53 states have call successors, (58) [2022-01-10 06:29:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 558 transitions. [2022-01-10 06:29:15,059 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 558 transitions. Word has length 102 [2022-01-10 06:29:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:15,059 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 558 transitions. [2022-01-10 06:29:15,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 558 transitions. [2022-01-10 06:29:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 06:29:15,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:15,061 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:15,088 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 06:29:15,268 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 06:29:15,269 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1048205088, now seen corresponding path program 1 times [2022-01-10 06:29:15,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:15,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332215469] [2022-01-10 06:29:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:15,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:15,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:15,271 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 06:29:15,273 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 06:29:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:15,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:29:15,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:15,605 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-10 06:29:15,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:15,606 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:15,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332215469] [2022-01-10 06:29:15,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332215469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:15,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:15,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:29:15,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949539958] [2022-01-10 06:29:15,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:15,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:29:15,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:15,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:29:15,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:15,607 INFO L87 Difference]: Start difference. First operand 364 states and 558 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:15,655 INFO L93 Difference]: Finished difference Result 707 states and 1089 transitions. [2022-01-10 06:29:15,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:29:15,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-01-10 06:29:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:15,657 INFO L225 Difference]: With dead ends: 707 [2022-01-10 06:29:15,657 INFO L226 Difference]: Without dead ends: 366 [2022-01-10 06:29:15,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 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 06:29:15,658 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 148 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1991 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 06:29:15,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 1991 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-01-10 06:29:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-01-10 06:29:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 286 states have (on average 1.562937062937063) internal successors, (447), 293 states have internal predecessors, (447), 54 states have call successors, (54), 22 states have call predecessors, (54), 25 states have return successors, (60), 52 states have call predecessors, (60), 53 states have call successors, (60) [2022-01-10 06:29:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 561 transitions. [2022-01-10 06:29:15,668 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 561 transitions. Word has length 111 [2022-01-10 06:29:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:15,668 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 561 transitions. [2022-01-10 06:29:15,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 561 transitions. [2022-01-10 06:29:15,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 06:29:15,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:15,670 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:15,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-01-10 06:29:15,878 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 06:29:15,879 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:15,879 INFO L85 PathProgramCache]: Analyzing trace with hash -722315673, now seen corresponding path program 1 times [2022-01-10 06:29:15,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:15,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168288202] [2022-01-10 06:29:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:15,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:15,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:15,881 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 06:29:15,883 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 06:29:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:16,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:29:16,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:29:16,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:16,268 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:16,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168288202] [2022-01-10 06:29:16,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168288202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:16,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:16,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:29:16,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170846641] [2022-01-10 06:29:16,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:16,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:29:16,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:16,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:29:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:16,270 INFO L87 Difference]: Start difference. First operand 366 states and 561 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:16,317 INFO L93 Difference]: Finished difference Result 705 states and 1084 transitions. [2022-01-10 06:29:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:29:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2022-01-10 06:29:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:16,320 INFO L225 Difference]: With dead ends: 705 [2022-01-10 06:29:16,320 INFO L226 Difference]: Without dead ends: 366 [2022-01-10 06:29:16,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 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 06:29:16,322 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 149 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1978 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 06:29:16,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 1978 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-01-10 06:29:16,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-01-10 06:29:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 286 states have (on average 1.562937062937063) internal successors, (447), 293 states have internal predecessors, (447), 54 states have call successors, (54), 22 states have call predecessors, (54), 25 states have return successors, (59), 52 states have call predecessors, (59), 53 states have call successors, (59) [2022-01-10 06:29:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 560 transitions. [2022-01-10 06:29:16,333 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 560 transitions. Word has length 112 [2022-01-10 06:29:16,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:16,334 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 560 transitions. [2022-01-10 06:29:16,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:16,334 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 560 transitions. [2022-01-10 06:29:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 06:29:16,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:16,335 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:16,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-01-10 06:29:16,544 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 06:29:16,544 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:16,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:16,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1310752887, now seen corresponding path program 2 times [2022-01-10 06:29:16,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:16,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042142627] [2022-01-10 06:29:16,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:29:16,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:16,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:16,546 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 06:29:16,547 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 06:29:16,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 06:29:16,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:29:16,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:29:16,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:29:16,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:16,887 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:16,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042142627] [2022-01-10 06:29:16,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042142627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:16,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:16,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:29:16,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8880757] [2022-01-10 06:29:16,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:16,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:29:16,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:16,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:29:16,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:16,888 INFO L87 Difference]: Start difference. First operand 366 states and 560 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:16,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:16,940 INFO L93 Difference]: Finished difference Result 707 states and 1089 transitions. [2022-01-10 06:29:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:29:16,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-01-10 06:29:16,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:16,943 INFO L225 Difference]: With dead ends: 707 [2022-01-10 06:29:16,943 INFO L226 Difference]: Without dead ends: 368 [2022-01-10 06:29:16,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 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 06:29:16,944 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 147 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1980 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 06:29:16,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1980 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:16,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-01-10 06:29:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2022-01-10 06:29:16,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 287 states have (on average 1.5609756097560976) internal successors, (448), 295 states have internal predecessors, (448), 54 states have call successors, (54), 22 states have call predecessors, (54), 26 states have return successors, (63), 52 states have call predecessors, (63), 53 states have call successors, (63) [2022-01-10 06:29:16,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 565 transitions. [2022-01-10 06:29:16,954 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 565 transitions. Word has length 113 [2022-01-10 06:29:16,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:16,954 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 565 transitions. [2022-01-10 06:29:16,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:16,954 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 565 transitions. [2022-01-10 06:29:16,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 06:29:16,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:16,956 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:16,976 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 06:29:17,165 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 06:29:17,166 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1896260158, now seen corresponding path program 1 times [2022-01-10 06:29:17,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:17,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784703747] [2022-01-10 06:29:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:17,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:17,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:17,168 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 06:29:17,170 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 06:29:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:17,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:17,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:17,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:17,465 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:17,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784703747] [2022-01-10 06:29:17,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784703747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:17,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:17,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:17,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806190607] [2022-01-10 06:29:17,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:17,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:17,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:17,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:17,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:17,466 INFO L87 Difference]: Start difference. First operand 368 states and 565 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:17,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:17,484 INFO L93 Difference]: Finished difference Result 780 states and 1216 transitions. [2022-01-10 06:29:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:17,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2022-01-10 06:29:17,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:17,487 INFO L225 Difference]: With dead ends: 780 [2022-01-10 06:29:17,487 INFO L226 Difference]: Without dead ends: 443 [2022-01-10 06:29:17,488 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 06:29:17,488 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 134 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1068 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 06:29:17,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1068 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:17,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-01-10 06:29:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 435. [2022-01-10 06:29:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 348 states have internal predecessors, (537), 68 states have call successors, (68), 22 states have call predecessors, (68), 26 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2022-01-10 06:29:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 684 transitions. [2022-01-10 06:29:17,501 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 684 transitions. Word has length 114 [2022-01-10 06:29:17,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:17,501 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 684 transitions. [2022-01-10 06:29:17,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 684 transitions. [2022-01-10 06:29:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 06:29:17,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:17,503 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:17,529 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 06:29:17,712 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 06:29:17,713 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:17,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:17,713 INFO L85 PathProgramCache]: Analyzing trace with hash 893010166, now seen corresponding path program 1 times [2022-01-10 06:29:17,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:17,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377063429] [2022-01-10 06:29:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:17,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:17,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:17,729 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 06:29:17,767 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 06:29:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:17,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:29:17,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-01-10 06:29:18,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:18,067 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:18,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377063429] [2022-01-10 06:29:18,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377063429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:18,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:18,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:29:18,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313728204] [2022-01-10 06:29:18,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:18,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:29:18,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:18,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:29:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:29:18,068 INFO L87 Difference]: Start difference. First operand 435 states and 684 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:18,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:18,163 INFO L93 Difference]: Finished difference Result 1016 states and 1622 transitions. [2022-01-10 06:29:18,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:29:18,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 115 [2022-01-10 06:29:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:18,167 INFO L225 Difference]: With dead ends: 1016 [2022-01-10 06:29:18,167 INFO L226 Difference]: Without dead ends: 610 [2022-01-10 06:29:18,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:29:18,169 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 661 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:29:18,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [661 Valid, 1294 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:29:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-01-10 06:29:18,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 443. [2022-01-10 06:29:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 347 states have (on average 1.5648414985590777) internal successors, (543), 354 states have internal predecessors, (543), 68 states have call successors, (68), 24 states have call predecessors, (68), 27 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2022-01-10 06:29:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 686 transitions. [2022-01-10 06:29:18,187 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 686 transitions. Word has length 115 [2022-01-10 06:29:18,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:18,187 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 686 transitions. [2022-01-10 06:29:18,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 06:29:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 686 transitions. [2022-01-10 06:29:18,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:29:18,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:18,189 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:18,199 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 06:29:18,399 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 06:29:18,399 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:18,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 587830183, now seen corresponding path program 1 times [2022-01-10 06:29:18,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:18,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800188362] [2022-01-10 06:29:18,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:18,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:18,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:18,402 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 06:29:18,403 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 06:29:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:18,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:18,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:18,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:18,731 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:18,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800188362] [2022-01-10 06:29:18,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800188362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:18,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:18,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:18,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755670794] [2022-01-10 06:29:18,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:18,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:18,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:18,733 INFO L87 Difference]: Start difference. First operand 443 states and 686 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:18,754 INFO L93 Difference]: Finished difference Result 1002 states and 1596 transitions. [2022-01-10 06:29:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:18,755 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-01-10 06:29:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:18,757 INFO L225 Difference]: With dead ends: 1002 [2022-01-10 06:29:18,758 INFO L226 Difference]: Without dead ends: 600 [2022-01-10 06:29:18,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 06:29:18,759 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 128 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1115 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 06:29:18,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1115 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-01-10 06:29:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 592. [2022-01-10 06:29:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 465 states have (on average 1.5978494623655914) internal successors, (743), 472 states have internal predecessors, (743), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (110), 97 states have call predecessors, (110), 98 states have call successors, (110) [2022-01-10 06:29:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 952 transitions. [2022-01-10 06:29:18,780 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 952 transitions. Word has length 116 [2022-01-10 06:29:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:18,780 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 952 transitions. [2022-01-10 06:29:18,780 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 952 transitions. [2022-01-10 06:29:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:29:18,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:18,782 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:18,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-01-10 06:29:18,991 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 06:29:18,991 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:18,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:18,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1176044693, now seen corresponding path program 1 times [2022-01-10 06:29:18,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:18,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439398880] [2022-01-10 06:29:18,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:18,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:18,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:18,994 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 06:29:18,996 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 06:29:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:19,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:29:19,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:19,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:29:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:19,499 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:19,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439398880] [2022-01-10 06:29:19,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439398880] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:29:19,499 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:29:19,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:29:19,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996286419] [2022-01-10 06:29:19,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:29:19,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:29:19,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:29:19,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:29:19,500 INFO L87 Difference]: Start difference. First operand 592 states and 952 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:29:19,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:19,741 INFO L93 Difference]: Finished difference Result 1436 states and 2370 transitions. [2022-01-10 06:29:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:29:19,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2022-01-10 06:29:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:19,747 INFO L225 Difference]: With dead ends: 1436 [2022-01-10 06:29:19,747 INFO L226 Difference]: Without dead ends: 1270 [2022-01-10 06:29:19,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 226 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 06:29:19,748 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 498 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 2955 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 06:29:19,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 2955 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:29:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-01-10 06:29:19,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1246. [2022-01-10 06:29:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 992 states have (on average 1.6290322580645162) internal successors, (1616), 999 states have internal predecessors, (1616), 226 states have call successors, (226), 24 states have call predecessors, (226), 27 states have return successors, (253), 224 states have call predecessors, (253), 225 states have call successors, (253) [2022-01-10 06:29:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 2095 transitions. [2022-01-10 06:29:19,800 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 2095 transitions. Word has length 116 [2022-01-10 06:29:19,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:19,800 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 2095 transitions. [2022-01-10 06:29:19,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:29:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 2095 transitions. [2022-01-10 06:29:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 06:29:19,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:19,804 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:19,827 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 06:29:20,014 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 06:29:20,014 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:20,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1275391994, now seen corresponding path program 1 times [2022-01-10 06:29:20,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:20,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522622562] [2022-01-10 06:29:20,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:20,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:20,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:20,016 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 06:29:20,017 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 06:29:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:20,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:20,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:20,334 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:20,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:20,334 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:20,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522622562] [2022-01-10 06:29:20,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522622562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:20,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:20,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:20,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504065821] [2022-01-10 06:29:20,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:20,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:20,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:20,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:20,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:20,335 INFO L87 Difference]: Start difference. First operand 1246 states and 2095 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:20,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:20,417 INFO L93 Difference]: Finished difference Result 2993 states and 5071 transitions. [2022-01-10 06:29:20,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:20,417 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-01-10 06:29:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:20,428 INFO L225 Difference]: With dead ends: 2993 [2022-01-10 06:29:20,428 INFO L226 Difference]: Without dead ends: 1886 [2022-01-10 06:29:20,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 06:29:20,432 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 126 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1107 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 06:29:20,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1107 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2022-01-10 06:29:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1878. [2022-01-10 06:29:20,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1505 states have (on average 1.6338870431893688) internal successors, (2459), 1512 states have internal predecessors, (2459), 345 states have call successors, (345), 24 states have call predecessors, (345), 27 states have return successors, (372), 343 states have call predecessors, (372), 344 states have call successors, (372) [2022-01-10 06:29:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 3176 transitions. [2022-01-10 06:29:20,502 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 3176 transitions. Word has length 119 [2022-01-10 06:29:20,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:20,502 INFO L470 AbstractCegarLoop]: Abstraction has 1878 states and 3176 transitions. [2022-01-10 06:29:20,502 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 3176 transitions. [2022-01-10 06:29:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 06:29:20,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:20,510 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:20,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 06:29:20,720 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 06:29:20,720 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash -319840837, now seen corresponding path program 1 times [2022-01-10 06:29:20,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:20,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683378849] [2022-01-10 06:29:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:20,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:20,722 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 06:29:20,724 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 06:29:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:20,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:20,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:21,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:21,031 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:21,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683378849] [2022-01-10 06:29:21,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683378849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:21,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:21,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:21,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599853754] [2022-01-10 06:29:21,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:21,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:21,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:21,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:21,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:21,032 INFO L87 Difference]: Start difference. First operand 1878 states and 3176 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:21,184 INFO L93 Difference]: Finished difference Result 4462 states and 7615 transitions. [2022-01-10 06:29:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:21,184 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-01-10 06:29:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:21,196 INFO L225 Difference]: With dead ends: 4462 [2022-01-10 06:29:21,196 INFO L226 Difference]: Without dead ends: 2856 [2022-01-10 06:29:21,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 06:29:21,202 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 124 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1094 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 06:29:21,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1094 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2022-01-10 06:29:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2848. [2022-01-10 06:29:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2313 states have (on average 1.6381322957198443) internal successors, (3789), 2320 states have internal predecessors, (3789), 507 states have call successors, (507), 24 states have call predecessors, (507), 27 states have return successors, (550), 505 states have call predecessors, (550), 506 states have call successors, (550) [2022-01-10 06:29:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4846 transitions. [2022-01-10 06:29:21,315 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4846 transitions. Word has length 120 [2022-01-10 06:29:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:21,315 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 4846 transitions. [2022-01-10 06:29:21,316 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4846 transitions. [2022-01-10 06:29:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:29:21,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:21,324 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:21,336 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 06:29:21,534 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 06:29:21,535 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1011408487, now seen corresponding path program 1 times [2022-01-10 06:29:21,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:21,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803608554] [2022-01-10 06:29:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:21,536 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:21,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:21,539 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 06:29:21,540 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 06:29:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:21,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:21,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:21,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:21,848 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803608554] [2022-01-10 06:29:21,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803608554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:21,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:21,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:21,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949849064] [2022-01-10 06:29:21,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:21,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:21,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:21,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:21,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:21,849 INFO L87 Difference]: Start difference. First operand 2848 states and 4846 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:22,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:22,026 INFO L93 Difference]: Finished difference Result 6783 states and 11639 transitions. [2022-01-10 06:29:22,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:22,027 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-01-10 06:29:22,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:22,045 INFO L225 Difference]: With dead ends: 6783 [2022-01-10 06:29:22,046 INFO L226 Difference]: Without dead ends: 4423 [2022-01-10 06:29:22,055 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 06:29:22,056 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 122 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1094 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 06:29:22,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1094 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:22,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-01-10 06:29:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4415. [2022-01-10 06:29:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 3635 states have (on average 1.6412654745529573) internal successors, (5966), 3642 states have internal predecessors, (5966), 752 states have call successors, (752), 24 states have call predecessors, (752), 27 states have return successors, (821), 750 states have call predecessors, (821), 751 states have call successors, (821) [2022-01-10 06:29:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 7539 transitions. [2022-01-10 06:29:22,277 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 7539 transitions. Word has length 121 [2022-01-10 06:29:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:22,277 INFO L470 AbstractCegarLoop]: Abstraction has 4415 states and 7539 transitions. [2022-01-10 06:29:22,278 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 7539 transitions. [2022-01-10 06:29:22,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 06:29:22,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:22,286 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:22,297 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 06:29:22,495 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 06:29:22,496 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:22,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:22,496 INFO L85 PathProgramCache]: Analyzing trace with hash -166887201, now seen corresponding path program 1 times [2022-01-10 06:29:22,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:22,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932518605] [2022-01-10 06:29:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:22,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:22,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:22,498 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 06:29:22,500 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 06:29:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:22,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:22,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:22,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:22,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932518605] [2022-01-10 06:29:22,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932518605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:22,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:22,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:22,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021890531] [2022-01-10 06:29:22,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:22,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:22,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:22,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:22,807 INFO L87 Difference]: Start difference. First operand 4415 states and 7539 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:23,220 INFO L93 Difference]: Finished difference Result 10923 states and 18775 transitions. [2022-01-10 06:29:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:23,221 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-01-10 06:29:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:23,262 INFO L225 Difference]: With dead ends: 10923 [2022-01-10 06:29:23,262 INFO L226 Difference]: Without dead ends: 7244 [2022-01-10 06:29:23,281 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 06:29:23,282 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 120 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1113 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 06:29:23,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:23,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7244 states. [2022-01-10 06:29:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7244 to 7236. [2022-01-10 06:29:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 5963 states have (on average 1.6365923193023646) internal successors, (9759), 5970 states have internal predecessors, (9759), 1245 states have call successors, (1245), 24 states have call predecessors, (1245), 27 states have return successors, (1358), 1243 states have call predecessors, (1358), 1244 states have call successors, (1358) [2022-01-10 06:29:23,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 12362 transitions. [2022-01-10 06:29:23,723 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 12362 transitions. Word has length 122 [2022-01-10 06:29:23,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:23,724 INFO L470 AbstractCegarLoop]: Abstraction has 7236 states and 12362 transitions. [2022-01-10 06:29:23,724 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:23,724 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 12362 transitions. [2022-01-10 06:29:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 06:29:23,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:23,738 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:23,750 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 06:29:23,948 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 06:29:23,948 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash 823731829, now seen corresponding path program 1 times [2022-01-10 06:29:23,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:23,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73383613] [2022-01-10 06:29:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:23,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:23,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:23,963 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 06:29:24,002 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 06:29:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:24,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:24,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:24,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:24,337 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:24,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73383613] [2022-01-10 06:29:24,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73383613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:24,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:24,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:24,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072707568] [2022-01-10 06:29:24,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:24,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:24,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:24,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:24,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:24,339 INFO L87 Difference]: Start difference. First operand 7236 states and 12362 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:24,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:24,833 INFO L93 Difference]: Finished difference Result 18287 states and 31460 transitions. [2022-01-10 06:29:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:24,834 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-01-10 06:29:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:24,880 INFO L225 Difference]: With dead ends: 18287 [2022-01-10 06:29:24,880 INFO L226 Difference]: Without dead ends: 12184 [2022-01-10 06:29:24,899 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 06:29:24,899 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 118 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1107 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 06:29:24,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1107 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:24,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12184 states. [2022-01-10 06:29:25,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12184 to 12176. [2022-01-10 06:29:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12176 states, 10081 states have (on average 1.6360480111100089) internal successors, (16493), 10088 states have internal predecessors, (16493), 2067 states have call successors, (2067), 24 states have call predecessors, (2067), 27 states have return successors, (2258), 2065 states have call predecessors, (2258), 2066 states have call successors, (2258) [2022-01-10 06:29:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12176 states to 12176 states and 20818 transitions. [2022-01-10 06:29:25,544 INFO L78 Accepts]: Start accepts. Automaton has 12176 states and 20818 transitions. Word has length 123 [2022-01-10 06:29:25,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:25,544 INFO L470 AbstractCegarLoop]: Abstraction has 12176 states and 20818 transitions. [2022-01-10 06:29:25,544 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 12176 states and 20818 transitions. [2022-01-10 06:29:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 06:29:25,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:25,563 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:25,573 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 06:29:25,773 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 06:29:25,773 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash 589848829, now seen corresponding path program 1 times [2022-01-10 06:29:25,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:25,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125667616] [2022-01-10 06:29:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:25,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:25,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:25,777 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 06:29:25,778 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 06:29:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:25,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:26,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:26,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:26,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:26,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125667616] [2022-01-10 06:29:26,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125667616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:26,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:26,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:26,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390482988] [2022-01-10 06:29:26,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:26,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:26,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:26,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:26,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:26,200 INFO L87 Difference]: Start difference. First operand 12176 states and 20818 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:26,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:26,953 INFO L93 Difference]: Finished difference Result 29140 states and 49724 transitions. [2022-01-10 06:29:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:26,954 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2022-01-10 06:29:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:27,014 INFO L225 Difference]: With dead ends: 29140 [2022-01-10 06:29:27,015 INFO L226 Difference]: Without dead ends: 19065 [2022-01-10 06:29:27,044 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 06:29:27,044 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 116 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1070 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 06:29:27,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1070 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2022-01-10 06:29:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 19057. [2022-01-10 06:29:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19057 states, 15759 states have (on average 1.6084142394822007) internal successors, (25347), 15766 states have internal predecessors, (25347), 3270 states have call successors, (3270), 24 states have call predecessors, (3270), 27 states have return successors, (3605), 3268 states have call predecessors, (3605), 3269 states have call successors, (3605) [2022-01-10 06:29:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19057 states to 19057 states and 32222 transitions. [2022-01-10 06:29:28,106 INFO L78 Accepts]: Start accepts. Automaton has 19057 states and 32222 transitions. Word has length 124 [2022-01-10 06:29:28,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:28,106 INFO L470 AbstractCegarLoop]: Abstraction has 19057 states and 32222 transitions. [2022-01-10 06:29:28,107 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 19057 states and 32222 transitions. [2022-01-10 06:29:28,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 06:29:28,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:28,125 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:28,137 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 06:29:28,336 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 06:29:28,336 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2091153292, now seen corresponding path program 1 times [2022-01-10 06:29:28,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:28,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985757079] [2022-01-10 06:29:28,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:28,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:28,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:28,352 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 06:29:28,375 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 06:29:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:28,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:28,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:28,725 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:28,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:28,725 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:28,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985757079] [2022-01-10 06:29:28,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985757079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:28,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:28,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:28,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279634958] [2022-01-10 06:29:28,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:28,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:28,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:28,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:28,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:28,727 INFO L87 Difference]: Start difference. First operand 19057 states and 32222 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:29,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:29,910 INFO L93 Difference]: Finished difference Result 50370 states and 85496 transitions. [2022-01-10 06:29:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:29,911 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-01-10 06:29:29,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:30,119 INFO L225 Difference]: With dead ends: 50370 [2022-01-10 06:29:30,119 INFO L226 Difference]: Without dead ends: 34049 [2022-01-10 06:29:30,182 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 06:29:30,183 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 114 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1099 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 06:29:30,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1099 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34049 states. [2022-01-10 06:29:31,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34049 to 34041. [2022-01-10 06:29:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34041 states, 28293 states have (on average 1.604707878273778) internal successors, (45402), 28300 states have internal predecessors, (45402), 5720 states have call successors, (5720), 24 states have call predecessors, (5720), 27 states have return successors, (6329), 5718 states have call predecessors, (6329), 5719 states have call successors, (6329) [2022-01-10 06:29:32,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34041 states to 34041 states and 57451 transitions. [2022-01-10 06:29:32,051 INFO L78 Accepts]: Start accepts. Automaton has 34041 states and 57451 transitions. Word has length 125 [2022-01-10 06:29:32,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:32,051 INFO L470 AbstractCegarLoop]: Abstraction has 34041 states and 57451 transitions. [2022-01-10 06:29:32,051 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 34041 states and 57451 transitions. [2022-01-10 06:29:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 06:29:32,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:32,082 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:32,104 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 06:29:32,292 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 06:29:32,293 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash -870526205, now seen corresponding path program 1 times [2022-01-10 06:29:32,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:32,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664607759] [2022-01-10 06:29:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:32,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:32,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:32,315 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 06:29:32,318 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 06:29:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:32,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:32,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:32,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:32,661 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:32,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664607759] [2022-01-10 06:29:32,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664607759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:32,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:32,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:32,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87706998] [2022-01-10 06:29:32,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:32,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:32,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:32,662 INFO L87 Difference]: Start difference. First operand 34041 states and 57451 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:35,026 INFO L93 Difference]: Finished difference Result 92847 states and 157178 transitions. [2022-01-10 06:29:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:35,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2022-01-10 06:29:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:35,392 INFO L225 Difference]: With dead ends: 92847 [2022-01-10 06:29:35,392 INFO L226 Difference]: Without dead ends: 62450 [2022-01-10 06:29:35,460 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 06:29:35,461 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 112 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1100 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 06:29:35,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1100 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62450 states. [2022-01-10 06:29:38,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62450 to 62442. [2022-01-10 06:29:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62442 states, 52181 states have (on average 1.5999885015618711) internal successors, (83489), 52188 states have internal predecessors, (83489), 10233 states have call successors, (10233), 24 states have call predecessors, (10233), 27 states have return successors, (11374), 10231 states have call predecessors, (11374), 10232 states have call successors, (11374) [2022-01-10 06:29:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62442 states to 62442 states and 105096 transitions. [2022-01-10 06:29:38,599 INFO L78 Accepts]: Start accepts. Automaton has 62442 states and 105096 transitions. Word has length 126 [2022-01-10 06:29:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:38,599 INFO L470 AbstractCegarLoop]: Abstraction has 62442 states and 105096 transitions. [2022-01-10 06:29:38,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:38,599 INFO L276 IsEmpty]: Start isEmpty. Operand 62442 states and 105096 transitions. [2022-01-10 06:29:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 06:29:38,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:38,618 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:38,644 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 06:29:38,828 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 06:29:38,829 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash 540084212, now seen corresponding path program 1 times [2022-01-10 06:29:38,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:38,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858405170] [2022-01-10 06:29:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:38,830 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:38,844 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 06:29:38,893 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 06:29:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:39,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:29:39,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:29:39,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:39,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:39,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858405170] [2022-01-10 06:29:39,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858405170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:39,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:39,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:29:39,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018211474] [2022-01-10 06:29:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:39,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:29:39,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:29:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:29:39,212 INFO L87 Difference]: Start difference. First operand 62442 states and 105096 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:42,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:29:42,871 INFO L93 Difference]: Finished difference Result 116966 states and 197215 transitions. [2022-01-10 06:29:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:29:42,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2022-01-10 06:29:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:29:43,500 INFO L225 Difference]: With dead ends: 116966 [2022-01-10 06:29:43,500 INFO L226 Difference]: Without dead ends: 116800 [2022-01-10 06:29:43,546 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 06:29:43,547 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 110 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1099 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 06:29:43,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1099 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:29:43,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116800 states. [2022-01-10 06:29:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116800 to 116792. [2022-01-10 06:29:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116792 states, 98163 states have (on average 1.5941648075140329) internal successors, (156488), 98170 states have internal predecessors, (156488), 18601 states have call successors, (18601), 24 states have call predecessors, (18601), 27 states have return successors, (20788), 18599 states have call predecessors, (20788), 18600 states have call successors, (20788) [2022-01-10 06:29:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116792 states to 116792 states and 195877 transitions. [2022-01-10 06:29:49,592 INFO L78 Accepts]: Start accepts. Automaton has 116792 states and 195877 transitions. Word has length 127 [2022-01-10 06:29:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:29:49,592 INFO L470 AbstractCegarLoop]: Abstraction has 116792 states and 195877 transitions. [2022-01-10 06:29:49,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-01-10 06:29:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 116792 states and 195877 transitions. [2022-01-10 06:29:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 06:29:49,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:29:49,620 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:29:49,645 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 06:29:49,831 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 06:29:49,831 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:29:49,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:29:49,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2021595268, now seen corresponding path program 1 times [2022-01-10 06:29:49,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:29:49,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128333384] [2022-01-10 06:29:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:29:49,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:29:49,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:29:49,833 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 06:29:49,835 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 06:29:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:29:50,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-10 06:29:50,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:29:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:29:50,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:29:50,553 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:29:50,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128333384] [2022-01-10 06:29:50,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128333384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:29:50,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:29:50,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 06:29:50,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168055330] [2022-01-10 06:29:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:29:50,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 06:29:50,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:29:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 06:29:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-10 06:29:50,554 INFO L87 Difference]: Start difference. First operand 116792 states and 195877 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-01-10 06:30:00,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:30:00,171 INFO L93 Difference]: Finished difference Result 232702 states and 395780 transitions. [2022-01-10 06:30:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 06:30:00,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 9 states have internal predecessors, (95), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 128 [2022-01-10 06:30:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:30:01,423 INFO L225 Difference]: With dead ends: 232702 [2022-01-10 06:30:01,423 INFO L226 Difference]: Without dead ends: 232544 [2022-01-10 06:30:01,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2022-01-10 06:30:01,589 INFO L933 BasicCegarLoop]: 759 mSDtfsCounter, 1024 mSDsluCounter, 5798 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 6557 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:30:01,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 6557 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 06:30:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232544 states. [2022-01-10 06:30:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232544 to 232525. [2022-01-10 06:30:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232525 states, 195500 states have (on average 1.594849104859335) internal successors, (311793), 195408 states have internal predecessors, (311793), 36960 states have call successors, (36960), 57 states have call predecessors, (36960), 64 states have return successors, (44626), 37067 states have call predecessors, (44626), 36957 states have call successors, (44626)