/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_spec0_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:20:19,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:20:19,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:20:19,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:20:19,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:20:19,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:20:19,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:20:19,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:20:19,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:20:19,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:20:19,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:20:19,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:20:19,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:20:19,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:20:19,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:20:19,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:20:19,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:20:19,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:20:19,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:20:19,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:20:19,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:20:19,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:20:19,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:20:19,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:20:19,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:20:19,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:20:19,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:20:19,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:20:19,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:20:19,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:20:19,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:20:19,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:20:19,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:20:19,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:20:19,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:20:19,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:20:19,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:20:19,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:20:19,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:20:19,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:20:19,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:20:19,102 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 06:20:19,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:20:19,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:20:19,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:20:19,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:20:19,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:20:19,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:20:19,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:20:19,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:20:19,116 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:20:19,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:20:19,117 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:20:19,118 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:20:19,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:20:19,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:20:19,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:20:19,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:20:19,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:20:19,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:20:19,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:20:19,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:20:19,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:20:19,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:20:19,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:20:19,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:20:19,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:20:19,348 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:20:19,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2022-01-10 06:20:19,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11ac99d17/7d70a0c4ff014115af94dffc15aa0c3f/FLAG725bbebd4 [2022-01-10 06:20:19,762 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:20:19,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2022-01-10 06:20:19,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11ac99d17/7d70a0c4ff014115af94dffc15aa0c3f/FLAG725bbebd4 [2022-01-10 06:20:20,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11ac99d17/7d70a0c4ff014115af94dffc15aa0c3f [2022-01-10 06:20:20,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:20:20,120 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:20:20,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:20:20,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:20:20,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:20:20,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5898ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20, skipping insertion in model container [2022-01-10 06:20:20,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:20:20,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:20:20,415 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_spec0_product40.cil.c[7657,7670] [2022-01-10 06:20:20,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:20:20,611 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:20:20,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:20:20,633 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_spec0_product40.cil.c[7657,7670] [2022-01-10 06:20:20,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:20:20,686 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:20:20,714 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_spec0_product40.cil.c[7657,7670] [2022-01-10 06:20:20,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:20:20,811 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:20:20,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20 WrapperNode [2022-01-10 06:20:20,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:20:20,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:20:20,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:20:20,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:20:20,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,883 INFO L137 Inliner]: procedures = 129, calls = 205, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 861 [2022-01-10 06:20:20,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:20:20,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:20:20,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:20:20,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:20:20,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:20:20,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:20:20,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:20:20,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:20:20,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (1/1) ... [2022-01-10 06:20:20,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:20:20,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:20:20,983 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 06:20:21,004 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 06:20:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:20:21,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:20:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:20:21,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:20:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:20:21,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:20:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:20:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:20:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:20:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:20:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:20:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:20:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:20:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:20:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:20:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:20:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:20:21,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:20:21,029 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:20:21,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:20:21,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:20:21,029 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:20:21,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:20:21,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:20:21,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:20:21,250 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:20:21,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:20:21,782 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:20:21,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:20:21,794 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:20:21,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:20:21 BoogieIcfgContainer [2022-01-10 06:20:21,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:20:21,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:20:21,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:20:21,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:20:21,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:20:20" (1/3) ... [2022-01-10 06:20:21,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16082f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:20:21, skipping insertion in model container [2022-01-10 06:20:21,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:20:20" (2/3) ... [2022-01-10 06:20:21,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16082f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:20:21, skipping insertion in model container [2022-01-10 06:20:21,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:20:21" (3/3) ... [2022-01-10 06:20:21,803 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product40.cil.c [2022-01-10 06:20:21,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:20:21,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:20:21,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:20:21,850 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 06:20:21,850 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:20:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 262 states have (on average 1.5648854961832062) internal successors, (410), 265 states have internal predecessors, (410), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-01-10 06:20:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 06:20:21,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:21,877 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:21,878 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:21,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:21,881 INFO L85 PathProgramCache]: Analyzing trace with hash 836814964, now seen corresponding path program 1 times [2022-01-10 06:20:21,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:21,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84351535] [2022-01-10 06:20:21,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:21,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:21,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:21,892 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 06:20:21,893 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 06:20:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:22,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:20:22,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:20:22,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:22,457 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:22,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84351535] [2022-01-10 06:20:22,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84351535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:22,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:22,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:20:22,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667161509] [2022-01-10 06:20:22,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:22,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:20:22,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:22,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:20:22,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:20:22,495 INFO L87 Difference]: Start difference. First operand has 336 states, 262 states have (on average 1.5648854961832062) internal successors, (410), 265 states have internal predecessors, (410), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:22,536 INFO L93 Difference]: Finished difference Result 474 states and 710 transitions. [2022-01-10 06:20:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:20:22,540 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2022-01-10 06:20:22,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:22,553 INFO L225 Difference]: With dead ends: 474 [2022-01-10 06:20:22,553 INFO L226 Difference]: Without dead ends: 329 [2022-01-10 06:20:22,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 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 06:20:22,559 INFO L933 BasicCegarLoop]: 510 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, 510 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 06:20:22,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:22,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-01-10 06:20:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2022-01-10 06:20:22,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 256 states have (on average 1.55859375) internal successors, (399), 258 states have internal predecessors, (399), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-01-10 06:20:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 502 transitions. [2022-01-10 06:20:22,603 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 502 transitions. Word has length 106 [2022-01-10 06:20:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:22,604 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 502 transitions. [2022-01-10 06:20:22,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:22,604 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 502 transitions. [2022-01-10 06:20:22,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 06:20:22,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:22,608 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:22,661 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 06:20:22,812 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 06:20:22,812 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:22,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1680040244, now seen corresponding path program 1 times [2022-01-10 06:20:22,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:22,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250363888] [2022-01-10 06:20:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:22,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:22,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:22,815 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 06:20:22,817 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 06:20:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:23,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:20:23,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 06:20:23,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:23,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:23,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250363888] [2022-01-10 06:20:23,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250363888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:23,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:23,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:20:23,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140148483] [2022-01-10 06:20:23,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:23,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:23,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:23,208 INFO L87 Difference]: Start difference. First operand 329 states and 502 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:23,276 INFO L93 Difference]: Finished difference Result 649 states and 994 transitions. [2022-01-10 06:20:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:20:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2022-01-10 06:20:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:23,280 INFO L225 Difference]: With dead ends: 649 [2022-01-10 06:20:23,280 INFO L226 Difference]: Without dead ends: 331 [2022-01-10 06:20:23,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:20:23,297 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 160 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1790 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 06:20:23,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1790 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-01-10 06:20:23,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-01-10 06:20:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.556420233463035) internal successors, (400), 260 states have internal predecessors, (400), 52 states have call successors, (52), 20 states have call predecessors, (52), 21 states have return successors, (53), 50 states have call predecessors, (53), 51 states have call successors, (53) [2022-01-10 06:20:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 505 transitions. [2022-01-10 06:20:23,325 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 505 transitions. Word has length 107 [2022-01-10 06:20:23,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:23,326 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 505 transitions. [2022-01-10 06:20:23,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 505 transitions. [2022-01-10 06:20:23,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 06:20:23,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:23,329 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:23,341 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 06:20:23,533 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 06:20:23,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:23,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1854102288, now seen corresponding path program 1 times [2022-01-10 06:20:23,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:23,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226672944] [2022-01-10 06:20:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:23,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:23,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:23,537 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 06:20:23,538 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 06:20:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:23,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:20:23,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 06:20:23,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:23,880 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:23,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226672944] [2022-01-10 06:20:23,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226672944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:23,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:23,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:20:23,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490643152] [2022-01-10 06:20:23,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:23,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:23,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:23,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:23,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:23,885 INFO L87 Difference]: Start difference. First operand 331 states and 505 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:23,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:23,971 INFO L93 Difference]: Finished difference Result 651 states and 998 transitions. [2022-01-10 06:20:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:20:23,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2022-01-10 06:20:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:23,975 INFO L225 Difference]: With dead ends: 651 [2022-01-10 06:20:23,975 INFO L226 Difference]: Without dead ends: 333 [2022-01-10 06:20:23,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 06:20:23,979 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 159 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1779 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 06:20:23,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 1779 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:23,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-01-10 06:20:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-01-10 06:20:24,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 258 states have (on average 1.554263565891473) internal successors, (401), 262 states have internal predecessors, (401), 52 states have call successors, (52), 20 states have call predecessors, (52), 22 states have return successors, (57), 50 states have call predecessors, (57), 51 states have call successors, (57) [2022-01-10 06:20:24,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 510 transitions. [2022-01-10 06:20:24,011 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 510 transitions. Word has length 108 [2022-01-10 06:20:24,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:24,013 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 510 transitions. [2022-01-10 06:20:24,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 510 transitions. [2022-01-10 06:20:24,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 06:20:24,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:24,017 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:24,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:20:24,231 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 06:20:24,232 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1405302363, now seen corresponding path program 1 times [2022-01-10 06:20:24,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:24,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571965782] [2022-01-10 06:20:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:24,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:24,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:24,234 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 06:20:24,236 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 06:20:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:24,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:20:24,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:20:24,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:24,598 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:24,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571965782] [2022-01-10 06:20:24,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571965782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:24,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:24,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:20:24,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297500752] [2022-01-10 06:20:24,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:24,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:24,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:24,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:24,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:24,600 INFO L87 Difference]: Start difference. First operand 333 states and 510 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:24,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:24,644 INFO L93 Difference]: Finished difference Result 643 states and 988 transitions. [2022-01-10 06:20:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:20:24,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2022-01-10 06:20:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:24,647 INFO L225 Difference]: With dead ends: 643 [2022-01-10 06:20:24,647 INFO L226 Difference]: Without dead ends: 333 [2022-01-10 06:20:24,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 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 06:20:24,648 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 158 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1793 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 06:20:24,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1793 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:24,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-01-10 06:20:24,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-01-10 06:20:24,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 258 states have (on average 1.554263565891473) internal successors, (401), 262 states have internal predecessors, (401), 52 states have call successors, (52), 20 states have call predecessors, (52), 22 states have return successors, (56), 50 states have call predecessors, (56), 51 states have call successors, (56) [2022-01-10 06:20:24,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 509 transitions. [2022-01-10 06:20:24,660 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 509 transitions. Word has length 109 [2022-01-10 06:20:24,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:24,661 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 509 transitions. [2022-01-10 06:20:24,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:24,661 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 509 transitions. [2022-01-10 06:20:24,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 06:20:24,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:24,662 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:24,681 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 06:20:24,875 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 06:20:24,875 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:24,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:24,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1940319359, now seen corresponding path program 2 times [2022-01-10 06:20:24,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:24,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025604090] [2022-01-10 06:20:24,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:20:24,877 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:24,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:24,878 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 06:20:24,880 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 06:20:25,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:20:25,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:20:25,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:25,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-10 06:20:25,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:25,153 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:25,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025604090] [2022-01-10 06:20:25,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025604090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:25,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:25,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:25,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717508475] [2022-01-10 06:20:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:25,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:25,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:25,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:25,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:25,155 INFO L87 Difference]: Start difference. First operand 333 states and 509 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:25,171 INFO L93 Difference]: Finished difference Result 468 states and 695 transitions. [2022-01-10 06:20:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2022-01-10 06:20:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:25,173 INFO L225 Difference]: With dead ends: 468 [2022-01-10 06:20:25,174 INFO L226 Difference]: Without dead ends: 336 [2022-01-10 06:20:25,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 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 06:20:25,175 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 1 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 998 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 06:20:25,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 998 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:25,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-01-10 06:20:25,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2022-01-10 06:20:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 260 states have (on average 1.55) internal successors, (403), 264 states have internal predecessors, (403), 52 states have call successors, (52), 20 states have call predecessors, (52), 22 states have return successors, (56), 50 states have call predecessors, (56), 51 states have call successors, (56) [2022-01-10 06:20:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 511 transitions. [2022-01-10 06:20:25,187 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 511 transitions. Word has length 110 [2022-01-10 06:20:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:25,187 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 511 transitions. [2022-01-10 06:20:25,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 511 transitions. [2022-01-10 06:20:25,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 06:20:25,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:25,189 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:25,207 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 06:20:25,398 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 06:20:25,398 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1771584480, now seen corresponding path program 1 times [2022-01-10 06:20:25,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:25,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219744543] [2022-01-10 06:20:25,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:25,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:25,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:25,401 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 06:20:25,402 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 06:20:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:25,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:20:25,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-10 06:20:25,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:25,733 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:25,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219744543] [2022-01-10 06:20:25,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219744543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:25,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:25,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:20:25,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248996137] [2022-01-10 06:20:25,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:25,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:25,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:25,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:25,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:25,735 INFO L87 Difference]: Start difference. First operand 335 states and 511 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:25,781 INFO L93 Difference]: Finished difference Result 649 states and 995 transitions. [2022-01-10 06:20:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:20:25,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2022-01-10 06:20:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:25,784 INFO L225 Difference]: With dead ends: 649 [2022-01-10 06:20:25,784 INFO L226 Difference]: Without dead ends: 337 [2022-01-10 06:20:25,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 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 06:20:25,785 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 156 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1795 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 06:20:25,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1795 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:25,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-10 06:20:25,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2022-01-10 06:20:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 261 states have (on average 1.5478927203065134) internal successors, (404), 266 states have internal predecessors, (404), 52 states have call successors, (52), 20 states have call predecessors, (52), 23 states have return successors, (58), 50 states have call predecessors, (58), 51 states have call successors, (58) [2022-01-10 06:20:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 514 transitions. [2022-01-10 06:20:25,796 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 514 transitions. Word has length 119 [2022-01-10 06:20:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:25,796 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 514 transitions. [2022-01-10 06:20:25,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 514 transitions. [2022-01-10 06:20:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 06:20:25,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:25,798 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:25,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:20:26,011 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 06:20:26,011 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:26,013 INFO L85 PathProgramCache]: Analyzing trace with hash 869037653, now seen corresponding path program 1 times [2022-01-10 06:20:26,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:26,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348979667] [2022-01-10 06:20:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:26,014 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:26,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:26,017 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 06:20:26,018 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 06:20:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:26,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:20:26,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 06:20:26,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:26,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:26,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348979667] [2022-01-10 06:20:26,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348979667] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:26,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:26,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:20:26,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026232350] [2022-01-10 06:20:26,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:26,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:26,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:26,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:26,407 INFO L87 Difference]: Start difference. First operand 337 states and 514 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:26,462 INFO L93 Difference]: Finished difference Result 647 states and 990 transitions. [2022-01-10 06:20:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:20:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2022-01-10 06:20:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:26,468 INFO L225 Difference]: With dead ends: 647 [2022-01-10 06:20:26,468 INFO L226 Difference]: Without dead ends: 337 [2022-01-10 06:20:26,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 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 06:20:26,470 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 157 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1782 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 06:20:26,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 1782 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-10 06:20:26,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2022-01-10 06:20:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 261 states have (on average 1.5478927203065134) internal successors, (404), 266 states have internal predecessors, (404), 52 states have call successors, (52), 20 states have call predecessors, (52), 23 states have return successors, (57), 50 states have call predecessors, (57), 51 states have call successors, (57) [2022-01-10 06:20:26,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 513 transitions. [2022-01-10 06:20:26,480 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 513 transitions. Word has length 120 [2022-01-10 06:20:26,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:26,481 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 513 transitions. [2022-01-10 06:20:26,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:26,481 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 513 transitions. [2022-01-10 06:20:26,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:20:26,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:26,482 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:26,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:20:26,691 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 06:20:26,692 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:26,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1863075672, now seen corresponding path program 2 times [2022-01-10 06:20:26,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:26,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948276539] [2022-01-10 06:20:26,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:20:26,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:26,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:26,694 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 06:20:26,695 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 06:20:26,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:20:26,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:20:26,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:20:26,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:20:27,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:27,057 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:27,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948276539] [2022-01-10 06:20:27,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948276539] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:27,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:27,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:20:27,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703574647] [2022-01-10 06:20:27,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:27,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:27,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:27,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:27,059 INFO L87 Difference]: Start difference. First operand 337 states and 513 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:27,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:27,123 INFO L93 Difference]: Finished difference Result 787 states and 1195 transitions. [2022-01-10 06:20:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:20:27,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-01-10 06:20:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:27,127 INFO L225 Difference]: With dead ends: 787 [2022-01-10 06:20:27,127 INFO L226 Difference]: Without dead ends: 663 [2022-01-10 06:20:27,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 06:20:27,128 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 439 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:20:27,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 2118 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2022-01-10 06:20:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 643. [2022-01-10 06:20:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 502 states have (on average 1.5637450199203187) internal successors, (785), 509 states have internal predecessors, (785), 98 states have call successors, (98), 39 states have call predecessors, (98), 42 states have return successors, (102), 94 states have call predecessors, (102), 96 states have call successors, (102) [2022-01-10 06:20:27,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 985 transitions. [2022-01-10 06:20:27,159 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 985 transitions. Word has length 121 [2022-01-10 06:20:27,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:27,160 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 985 transitions. [2022-01-10 06:20:27,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:27,160 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 985 transitions. [2022-01-10 06:20:27,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 06:20:27,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:27,163 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:27,187 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 06:20:27,387 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 06:20:27,388 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:27,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:27,388 INFO L85 PathProgramCache]: Analyzing trace with hash -235049022, now seen corresponding path program 1 times [2022-01-10 06:20:27,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:27,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716043227] [2022-01-10 06:20:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:27,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:27,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:27,390 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 06:20:27,391 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 06:20:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:27,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:20:27,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 06:20:27,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:27,722 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:27,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716043227] [2022-01-10 06:20:27,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716043227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:27,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:27,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:20:27,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343326311] [2022-01-10 06:20:27,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:27,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:20:27,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:27,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:20:27,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:20:27,724 INFO L87 Difference]: Start difference. First operand 643 states and 985 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:27,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:27,800 INFO L93 Difference]: Finished difference Result 1263 states and 1942 transitions. [2022-01-10 06:20:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:20:27,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 122 [2022-01-10 06:20:27,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:27,803 INFO L225 Difference]: With dead ends: 1263 [2022-01-10 06:20:27,804 INFO L226 Difference]: Without dead ends: 647 [2022-01-10 06:20:27,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 06:20:27,806 INFO L933 BasicCegarLoop]: 492 mSDtfsCounter, 155 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1784 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 06:20:27,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1784 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-01-10 06:20:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2022-01-10 06:20:27,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 503 states have (on average 1.562624254473161) internal successors, (786), 511 states have internal predecessors, (786), 98 states have call successors, (98), 39 states have call predecessors, (98), 43 states have return successors, (106), 94 states have call predecessors, (106), 96 states have call successors, (106) [2022-01-10 06:20:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 990 transitions. [2022-01-10 06:20:27,824 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 990 transitions. Word has length 122 [2022-01-10 06:20:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:27,825 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 990 transitions. [2022-01-10 06:20:27,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:27,825 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 990 transitions. [2022-01-10 06:20:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 06:20:27,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:27,827 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:27,836 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 06:20:28,036 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 06:20:28,037 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:28,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2141620406, now seen corresponding path program 1 times [2022-01-10 06:20:28,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353005999] [2022-01-10 06:20:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:28,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:28,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:28,040 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 06:20:28,075 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 06:20:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:28,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:28,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:28,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:28,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:28,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353005999] [2022-01-10 06:20:28,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353005999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:28,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:28,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:28,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438512979] [2022-01-10 06:20:28,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:28,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:28,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:28,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:28,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:28,395 INFO L87 Difference]: Start difference. First operand 645 states and 990 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:28,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:28,442 INFO L93 Difference]: Finished difference Result 1419 states and 2209 transitions. [2022-01-10 06:20:28,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:28,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-01-10 06:20:28,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:28,446 INFO L225 Difference]: With dead ends: 1419 [2022-01-10 06:20:28,446 INFO L226 Difference]: Without dead ends: 805 [2022-01-10 06:20:28,450 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 06:20:28,450 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 142 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 978 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 06:20:28,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 978 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-01-10 06:20:28,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 789. [2022-01-10 06:20:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 619 states have (on average 1.5831987075928917) internal successors, (980), 627 states have internal predecessors, (980), 126 states have call successors, (126), 39 states have call predecessors, (126), 43 states have return successors, (136), 122 states have call predecessors, (136), 124 states have call successors, (136) [2022-01-10 06:20:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1242 transitions. [2022-01-10 06:20:28,482 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1242 transitions. Word has length 123 [2022-01-10 06:20:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:28,483 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1242 transitions. [2022-01-10 06:20:28,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1242 transitions. [2022-01-10 06:20:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 06:20:28,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:28,486 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:28,511 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 06:20:28,695 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 06:20:28,695 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:28,696 INFO L85 PathProgramCache]: Analyzing trace with hash -72429352, now seen corresponding path program 1 times [2022-01-10 06:20:28,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:28,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291548995] [2022-01-10 06:20:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:28,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:28,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:28,698 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 06:20:28,699 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 06:20:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:28,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:20:28,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:20:29,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:29,074 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:29,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291548995] [2022-01-10 06:20:29,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291548995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:29,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:29,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:20:29,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505529066] [2022-01-10 06:20:29,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:29,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:20:29,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:29,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:20:29,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:20:29,076 INFO L87 Difference]: Start difference. First operand 789 states and 1242 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:29,173 INFO L93 Difference]: Finished difference Result 1901 states and 3043 transitions. [2022-01-10 06:20:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:20:29,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 124 [2022-01-10 06:20:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:29,178 INFO L225 Difference]: With dead ends: 1901 [2022-01-10 06:20:29,178 INFO L226 Difference]: Without dead ends: 1141 [2022-01-10 06:20:29,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 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 06:20:29,181 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 628 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:20:29,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 1193 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:20:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-01-10 06:20:29,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 795. [2022-01-10 06:20:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 624 states have (on average 1.5673076923076923) internal successors, (978), 631 states have internal predecessors, (978), 126 states have call successors, (126), 41 states have call predecessors, (126), 44 states have return successors, (132), 122 states have call predecessors, (132), 124 states have call successors, (132) [2022-01-10 06:20:29,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1236 transitions. [2022-01-10 06:20:29,210 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1236 transitions. Word has length 124 [2022-01-10 06:20:29,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:29,210 INFO L470 AbstractCegarLoop]: Abstraction has 795 states and 1236 transitions. [2022-01-10 06:20:29,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:20:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1236 transitions. [2022-01-10 06:20:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 06:20:29,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:29,213 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:29,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:20:29,423 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 06:20:29,423 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:29,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:29,424 INFO L85 PathProgramCache]: Analyzing trace with hash 174354433, now seen corresponding path program 1 times [2022-01-10 06:20:29,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:29,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282016304] [2022-01-10 06:20:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:29,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:29,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:29,426 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 06:20:29,426 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 06:20:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:29,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:20:29,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:29,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:20:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:29,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:29,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282016304] [2022-01-10 06:20:29,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282016304] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:20:29,958 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:20:29,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:20:29,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050448495] [2022-01-10 06:20:29,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:20:29,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:20:29,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:20:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:20:29,960 INFO L87 Difference]: Start difference. First operand 795 states and 1236 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-01-10 06:20:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:30,209 INFO L93 Difference]: Finished difference Result 1814 states and 2887 transitions. [2022-01-10 06:20:30,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:20:30,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2022-01-10 06:20:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:30,216 INFO L225 Difference]: With dead ends: 1814 [2022-01-10 06:20:30,216 INFO L226 Difference]: Without dead ends: 1548 [2022-01-10 06:20:30,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 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 06:20:30,218 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 538 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:20:30,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 2308 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:20:30,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2022-01-10 06:20:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1508. [2022-01-10 06:20:30,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1210 states have (on average 1.6049586776859504) internal successors, (1942), 1217 states have internal predecessors, (1942), 253 states have call successors, (253), 41 states have call predecessors, (253), 44 states have return successors, (269), 249 states have call predecessors, (269), 251 states have call successors, (269) [2022-01-10 06:20:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2464 transitions. [2022-01-10 06:20:30,276 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 2464 transitions. Word has length 125 [2022-01-10 06:20:30,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:30,276 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 2464 transitions. [2022-01-10 06:20:30,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-01-10 06:20:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 2464 transitions. [2022-01-10 06:20:30,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 06:20:30,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:30,281 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:30,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-01-10 06:20:30,491 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 06:20:30,491 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:30,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2047931197, now seen corresponding path program 1 times [2022-01-10 06:20:30,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:30,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862626109] [2022-01-10 06:20:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:30,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:30,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:30,493 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 06:20:30,519 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 06:20:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:30,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:30,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:30,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:30,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:30,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862626109] [2022-01-10 06:20:30,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862626109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:30,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:30,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:30,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030878871] [2022-01-10 06:20:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:30,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:30,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:30,801 INFO L87 Difference]: Start difference. First operand 1508 states and 2464 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:30,900 INFO L93 Difference]: Finished difference Result 3621 states and 6007 transitions. [2022-01-10 06:20:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:30,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-01-10 06:20:30,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:30,912 INFO L225 Difference]: With dead ends: 3621 [2022-01-10 06:20:30,912 INFO L226 Difference]: Without dead ends: 2199 [2022-01-10 06:20:30,916 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 06:20:30,916 INFO L933 BasicCegarLoop]: 521 mSDtfsCounter, 136 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1011 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 06:20:30,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 1011 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:30,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2022-01-10 06:20:30,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2183. [2022-01-10 06:20:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1758 states have (on average 1.622298065984073) internal successors, (2852), 1765 states have internal predecessors, (2852), 380 states have call successors, (380), 41 states have call predecessors, (380), 44 states have return successors, (406), 376 states have call predecessors, (406), 378 states have call successors, (406) [2022-01-10 06:20:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 3638 transitions. [2022-01-10 06:20:31,001 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 3638 transitions. Word has length 127 [2022-01-10 06:20:31,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:31,001 INFO L470 AbstractCegarLoop]: Abstraction has 2183 states and 3638 transitions. [2022-01-10 06:20:31,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:31,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 3638 transitions. [2022-01-10 06:20:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 06:20:31,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:31,010 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:31,022 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 06:20:31,220 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 06:20:31,220 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:31,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1579401644, now seen corresponding path program 1 times [2022-01-10 06:20:31,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:31,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367043858] [2022-01-10 06:20:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:31,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:31,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:31,222 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 06:20:31,223 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 06:20:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:31,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:31,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:31,542 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:31,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:31,542 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:31,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367043858] [2022-01-10 06:20:31,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367043858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:31,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:31,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:31,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472340321] [2022-01-10 06:20:31,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:31,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:31,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:31,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:31,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:31,543 INFO L87 Difference]: Start difference. First operand 2183 states and 3638 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:31,669 INFO L93 Difference]: Finished difference Result 5338 states and 8955 transitions. [2022-01-10 06:20:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-01-10 06:20:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:31,683 INFO L225 Difference]: With dead ends: 5338 [2022-01-10 06:20:31,683 INFO L226 Difference]: Without dead ends: 3294 [2022-01-10 06:20:31,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:31,690 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 134 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1006 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 06:20:31,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1006 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:31,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2022-01-10 06:20:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3278. [2022-01-10 06:20:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 2660 states have (on average 1.6270676691729324) internal successors, (4328), 2667 states have internal predecessors, (4328), 573 states have call successors, (573), 41 states have call predecessors, (573), 44 states have return successors, (599), 569 states have call predecessors, (599), 571 states have call successors, (599) [2022-01-10 06:20:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5500 transitions. [2022-01-10 06:20:31,850 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5500 transitions. Word has length 128 [2022-01-10 06:20:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:31,850 INFO L470 AbstractCegarLoop]: Abstraction has 3278 states and 5500 transitions. [2022-01-10 06:20:31,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5500 transitions. [2022-01-10 06:20:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-10 06:20:31,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:31,862 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:31,881 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 06:20:32,079 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 06:20:32,080 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:32,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:32,080 INFO L85 PathProgramCache]: Analyzing trace with hash -765218639, now seen corresponding path program 1 times [2022-01-10 06:20:32,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:32,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335079422] [2022-01-10 06:20:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:32,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:32,082 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 06:20:32,083 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 06:20:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:32,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:32,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:32,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:32,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:32,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335079422] [2022-01-10 06:20:32,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335079422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:32,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:32,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:32,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200019928] [2022-01-10 06:20:32,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:32,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:32,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:32,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:32,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:32,397 INFO L87 Difference]: Start difference. First operand 3278 states and 5500 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:32,566 INFO L93 Difference]: Finished difference Result 8039 states and 13585 transitions. [2022-01-10 06:20:32,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:32,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-01-10 06:20:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:32,586 INFO L225 Difference]: With dead ends: 8039 [2022-01-10 06:20:32,587 INFO L226 Difference]: Without dead ends: 5033 [2022-01-10 06:20:32,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:32,595 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 132 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1000 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 06:20:32,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1000 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5033 states. [2022-01-10 06:20:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5033 to 5017. [2022-01-10 06:20:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 4127 states have (on average 1.632662951296341) internal successors, (6738), 4134 states have internal predecessors, (6738), 845 states have call successors, (845), 41 states have call predecessors, (845), 44 states have return successors, (887), 841 states have call predecessors, (887), 843 states have call successors, (887) [2022-01-10 06:20:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 8470 transitions. [2022-01-10 06:20:32,833 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 8470 transitions. Word has length 129 [2022-01-10 06:20:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:32,833 INFO L470 AbstractCegarLoop]: Abstraction has 5017 states and 8470 transitions. [2022-01-10 06:20:32,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 8470 transitions. [2022-01-10 06:20:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 06:20:32,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:32,849 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:32,861 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 06:20:33,059 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 06:20:33,059 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:33,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash 651513685, now seen corresponding path program 1 times [2022-01-10 06:20:33,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:33,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609399300] [2022-01-10 06:20:33,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:33,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:33,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:33,062 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 06:20:33,062 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 06:20:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:33,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:33,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:33,395 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:33,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:33,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:33,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609399300] [2022-01-10 06:20:33,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609399300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:33,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:33,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:33,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848814180] [2022-01-10 06:20:33,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:33,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:33,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:33,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:33,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:33,397 INFO L87 Difference]: Start difference. First operand 5017 states and 8470 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:33,635 INFO L93 Difference]: Finished difference Result 12495 states and 21232 transitions. [2022-01-10 06:20:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:33,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-01-10 06:20:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:33,665 INFO L225 Difference]: With dead ends: 12495 [2022-01-10 06:20:33,665 INFO L226 Difference]: Without dead ends: 7966 [2022-01-10 06:20:33,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:33,679 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 130 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1000 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 06:20:33,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1000 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:33,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7966 states. [2022-01-10 06:20:33,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7966 to 7950. [2022-01-10 06:20:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7950 states, 6633 states have (on average 1.6380220111563395) internal successors, (10865), 6640 states have internal predecessors, (10865), 1272 states have call successors, (1272), 41 states have call predecessors, (1272), 44 states have return successors, (1340), 1268 states have call predecessors, (1340), 1270 states have call successors, (1340) [2022-01-10 06:20:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7950 states to 7950 states and 13477 transitions. [2022-01-10 06:20:34,011 INFO L78 Accepts]: Start accepts. Automaton has 7950 states and 13477 transitions. Word has length 130 [2022-01-10 06:20:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:34,012 INFO L470 AbstractCegarLoop]: Abstraction has 7950 states and 13477 transitions. [2022-01-10 06:20:34,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7950 states and 13477 transitions. [2022-01-10 06:20:34,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 06:20:34,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:34,028 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:34,045 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 06:20:34,237 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 06:20:34,237 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash 205401677, now seen corresponding path program 1 times [2022-01-10 06:20:34,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:34,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752311570] [2022-01-10 06:20:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:34,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:34,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:34,240 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 06:20:34,241 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 06:20:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:34,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:34,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:34,600 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:34,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:34,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:34,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752311570] [2022-01-10 06:20:34,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752311570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:34,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:34,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:34,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384486323] [2022-01-10 06:20:34,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:34,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:34,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:34,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:34,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:34,602 INFO L87 Difference]: Start difference. First operand 7950 states and 13477 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:34,959 INFO L93 Difference]: Finished difference Result 19852 states and 33926 transitions. [2022-01-10 06:20:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:34,960 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2022-01-10 06:20:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:34,996 INFO L225 Difference]: With dead ends: 19852 [2022-01-10 06:20:34,996 INFO L226 Difference]: Without dead ends: 13299 [2022-01-10 06:20:35,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 06:20:35,018 INFO L933 BasicCegarLoop]: 521 mSDtfsCounter, 128 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1007 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 06:20:35,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1007 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:35,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13299 states. [2022-01-10 06:20:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13299 to 13283. [2022-01-10 06:20:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13283 states, 11030 states have (on average 1.6398912058023571) internal successors, (18088), 11037 states have internal predecessors, (18088), 2208 states have call successors, (2208), 41 states have call predecessors, (2208), 44 states have return successors, (2320), 2204 states have call predecessors, (2320), 2206 states have call successors, (2320) [2022-01-10 06:20:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 22616 transitions. [2022-01-10 06:20:35,577 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 22616 transitions. Word has length 131 [2022-01-10 06:20:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:35,577 INFO L470 AbstractCegarLoop]: Abstraction has 13283 states and 22616 transitions. [2022-01-10 06:20:35,577 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 22616 transitions. [2022-01-10 06:20:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 06:20:35,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:35,604 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:35,627 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 06:20:35,815 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 06:20:35,816 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:35,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:35,816 INFO L85 PathProgramCache]: Analyzing trace with hash -92081735, now seen corresponding path program 1 times [2022-01-10 06:20:35,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:35,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659743789] [2022-01-10 06:20:35,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:35,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:35,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:35,818 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 06:20:35,821 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 06:20:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:36,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:36,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:36,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:36,140 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:36,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659743789] [2022-01-10 06:20:36,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659743789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:36,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:36,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:36,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604461202] [2022-01-10 06:20:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:36,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:36,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:36,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:36,144 INFO L87 Difference]: Start difference. First operand 13283 states and 22616 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:36,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:36,920 INFO L93 Difference]: Finished difference Result 34695 states and 59409 transitions. [2022-01-10 06:20:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:36,921 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2022-01-10 06:20:36,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:36,992 INFO L225 Difference]: With dead ends: 34695 [2022-01-10 06:20:36,993 INFO L226 Difference]: Without dead ends: 23038 [2022-01-10 06:20:37,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 06:20:37,029 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 126 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1006 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 06:20:37,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1006 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23038 states. [2022-01-10 06:20:38,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23038 to 23022. [2022-01-10 06:20:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23022 states, 19211 states have (on average 1.6386965800843267) internal successors, (31481), 19218 states have internal predecessors, (31481), 3766 states have call successors, (3766), 41 states have call predecessors, (3766), 44 states have return successors, (3956), 3762 states have call predecessors, (3956), 3764 states have call successors, (3956) [2022-01-10 06:20:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23022 states to 23022 states and 39203 transitions. [2022-01-10 06:20:38,144 INFO L78 Accepts]: Start accepts. Automaton has 23022 states and 39203 transitions. Word has length 132 [2022-01-10 06:20:38,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:38,144 INFO L470 AbstractCegarLoop]: Abstraction has 23022 states and 39203 transitions. [2022-01-10 06:20:38,144 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:38,145 INFO L276 IsEmpty]: Start isEmpty. Operand 23022 states and 39203 transitions. [2022-01-10 06:20:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-10 06:20:38,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:38,172 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:38,195 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 06:20:38,382 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 06:20:38,382 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:38,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:38,382 INFO L85 PathProgramCache]: Analyzing trace with hash -783145829, now seen corresponding path program 1 times [2022-01-10 06:20:38,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:38,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672997026] [2022-01-10 06:20:38,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:38,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:38,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:38,384 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 06:20:38,399 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 06:20:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:38,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:38,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:38,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:38,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:38,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672997026] [2022-01-10 06:20:38,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672997026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:38,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:38,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:38,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4964175] [2022-01-10 06:20:38,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:38,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:38,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:38,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:38,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:38,696 INFO L87 Difference]: Start difference. First operand 23022 states and 39203 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:39,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:39,999 INFO L93 Difference]: Finished difference Result 56969 states and 96694 transitions. [2022-01-10 06:20:39,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:39,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2022-01-10 06:20:39,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:40,142 INFO L225 Difference]: With dead ends: 56969 [2022-01-10 06:20:40,142 INFO L226 Difference]: Without dead ends: 37001 [2022-01-10 06:20:40,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 06:20:40,203 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 124 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 976 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 06:20:40,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 976 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37001 states. [2022-01-10 06:20:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37001 to 36985. [2022-01-10 06:20:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36985 states, 30855 states have (on average 1.610889645114244) internal successors, (49704), 30862 states have internal predecessors, (49704), 6085 states have call successors, (6085), 41 states have call predecessors, (6085), 44 states have return successors, (6419), 6081 states have call predecessors, (6419), 6083 states have call successors, (6419) [2022-01-10 06:20:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36985 states to 36985 states and 62208 transitions. [2022-01-10 06:20:42,122 INFO L78 Accepts]: Start accepts. Automaton has 36985 states and 62208 transitions. Word has length 133 [2022-01-10 06:20:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:42,122 INFO L470 AbstractCegarLoop]: Abstraction has 36985 states and 62208 transitions. [2022-01-10 06:20:42,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 36985 states and 62208 transitions. [2022-01-10 06:20:42,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 06:20:42,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:42,153 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:42,164 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 06:20:42,367 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 06:20:42,368 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:42,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:42,368 INFO L85 PathProgramCache]: Analyzing trace with hash -425202726, now seen corresponding path program 1 times [2022-01-10 06:20:42,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:42,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514738045] [2022-01-10 06:20:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:42,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:42,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:42,370 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 06:20:42,407 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 06:20:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:42,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:42,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:42,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:42,701 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:42,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514738045] [2022-01-10 06:20:42,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514738045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:42,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:42,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:42,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305739191] [2022-01-10 06:20:42,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:42,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:42,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:42,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:42,703 INFO L87 Difference]: Start difference. First operand 36985 states and 62208 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:45,152 INFO L93 Difference]: Finished difference Result 100655 states and 169809 transitions. [2022-01-10 06:20:45,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:45,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2022-01-10 06:20:45,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:45,386 INFO L225 Difference]: With dead ends: 100655 [2022-01-10 06:20:45,387 INFO L226 Difference]: Without dead ends: 67622 [2022-01-10 06:20:45,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 06:20:45,466 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 122 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1005 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 06:20:45,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1005 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:45,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67622 states. [2022-01-10 06:20:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67622 to 67606. [2022-01-10 06:20:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67606 states, 56690 states have (on average 1.6068795201975656) internal successors, (91094), 56697 states have internal predecessors, (91094), 10871 states have call successors, (10871), 41 states have call predecessors, (10871), 44 states have return successors, (11479), 10867 states have call predecessors, (11479), 10869 states have call successors, (11479) [2022-01-10 06:20:48,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67606 states to 67606 states and 113444 transitions. [2022-01-10 06:20:48,903 INFO L78 Accepts]: Start accepts. Automaton has 67606 states and 113444 transitions. Word has length 134 [2022-01-10 06:20:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:48,904 INFO L470 AbstractCegarLoop]: Abstraction has 67606 states and 113444 transitions. [2022-01-10 06:20:48,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 67606 states and 113444 transitions. [2022-01-10 06:20:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-10 06:20:48,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:48,942 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:48,955 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 06:20:49,152 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 06:20:49,152 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:49,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash 572896277, now seen corresponding path program 1 times [2022-01-10 06:20:49,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:49,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13721690] [2022-01-10 06:20:49,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:49,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:49,155 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 06:20:49,156 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 06:20:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:49,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:49,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:20:49,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:49,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:49,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13721690] [2022-01-10 06:20:49,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13721690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:49,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:49,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:49,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270560824] [2022-01-10 06:20:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:49,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:49,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:49,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:49,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:49,475 INFO L87 Difference]: Start difference. First operand 67606 states and 113444 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:20:54,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:54,181 INFO L93 Difference]: Finished difference Result 188687 states and 317344 transitions. [2022-01-10 06:20:54,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:54,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-01-10 06:20:54,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:54,756 INFO L225 Difference]: With dead ends: 188687 [2022-01-10 06:20:54,756 INFO L226 Difference]: Without dead ends: 126263 [2022-01-10 06:20:54,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 06:20:54,881 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 120 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1006 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 06:20:54,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1006 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126263 states. [2022-01-10 06:21:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126263 to 126247. [2022-01-10 06:21:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126247 states, 106434 states have (on average 1.6018753405866546) internal successors, (170494), 106441 states have internal predecessors, (170494), 19768 states have call successors, (19768), 41 states have call predecessors, (19768), 44 states have return successors, (20908), 19764 states have call predecessors, (20908), 19766 states have call successors, (20908) [2022-01-10 06:21:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126247 states to 126247 states and 211170 transitions. [2022-01-10 06:21:01,150 INFO L78 Accepts]: Start accepts. Automaton has 126247 states and 211170 transitions. Word has length 135 [2022-01-10 06:21:01,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:01,150 INFO L470 AbstractCegarLoop]: Abstraction has 126247 states and 211170 transitions. [2022-01-10 06:21:01,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:21:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 126247 states and 211170 transitions. [2022-01-10 06:21:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-10 06:21:01,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:01,209 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:01,219 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 06:21:01,419 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 06:21:01,419 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:01,419 INFO L85 PathProgramCache]: Analyzing trace with hash -369223270, now seen corresponding path program 1 times [2022-01-10 06:21:01,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:01,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103301372] [2022-01-10 06:21:01,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:01,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:01,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:01,421 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 06:21:01,421 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 06:21:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:01,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:01,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:21:01,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:01,744 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:01,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103301372] [2022-01-10 06:21:01,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103301372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:01,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:01,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:01,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948451074] [2022-01-10 06:21:01,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:01,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:01,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:01,746 INFO L87 Difference]: Start difference. First operand 126247 states and 211170 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:21:09,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:09,559 INFO L93 Difference]: Finished difference Result 238438 states and 399376 transitions. [2022-01-10 06:21:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:09,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 136 [2022-01-10 06:21:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:10,552 INFO L225 Difference]: With dead ends: 238438 [2022-01-10 06:21:10,552 INFO L226 Difference]: Without dead ends: 238172 [2022-01-10 06:21:10,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 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 06:21:10,655 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 118 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1005 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 06:21:10,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1005 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:10,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238172 states. [2022-01-10 06:21:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238172 to 238156. [2022-01-10 06:21:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238156 states, 201921 states have (on average 1.5961044170740042) internal successors, (322287), 201928 states have internal predecessors, (322287), 36190 states have call successors, (36190), 41 states have call predecessors, (36190), 44 states have return successors, (38376), 36186 states have call predecessors, (38376), 36188 states have call successors, (38376) [2022-01-10 06:21:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238156 states to 238156 states and 396853 transitions. [2022-01-10 06:21:22,381 INFO L78 Accepts]: Start accepts. Automaton has 238156 states and 396853 transitions. Word has length 136 [2022-01-10 06:21:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:22,381 INFO L470 AbstractCegarLoop]: Abstraction has 238156 states and 396853 transitions. [2022-01-10 06:21:22,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:21:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 238156 states and 396853 transitions. [2022-01-10 06:21:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-10 06:21:22,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:22,685 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:22,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:22,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:21:22,886 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:22,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:22,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1381399156, now seen corresponding path program 1 times [2022-01-10 06:21:22,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:22,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855094164] [2022-01-10 06:21:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:22,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:22,916 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:21:22,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-01-10 06:21:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:23,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-10 06:21:23,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:21:23,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:23,380 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:23,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855094164] [2022-01-10 06:21:23,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855094164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:23,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:23,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 06:21:23,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563738651] [2022-01-10 06:21:23,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:23,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 06:21:23,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 06:21:23,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-01-10 06:21:23,382 INFO L87 Difference]: Start difference. First operand 238156 states and 396853 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13)