./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product35.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6954a366a92a56976ad3f15dd01067d582436273e28a74386bd548c596ad28b --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 14:40:49,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 14:40:49,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 14:40:49,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 14:40:49,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 14:40:49,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 14:40:49,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 14:40:49,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 14:40:49,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 14:40:49,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 14:40:49,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 14:40:49,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 14:40:49,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 14:40:49,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 14:40:49,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 14:40:49,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 14:40:49,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 14:40:49,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 14:40:49,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 14:40:49,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 14:40:49,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 14:40:49,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 14:40:49,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 14:40:49,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 14:40:49,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 14:40:49,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 14:40:49,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 14:40:49,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 14:40:49,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 14:40:49,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 14:40:49,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 14:40:49,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 14:40:49,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 14:40:49,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 14:40:49,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 14:40:49,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 14:40:49,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 14:40:49,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 14:40:49,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 14:40:49,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 14:40:49,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 14:40:49,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 14:40:49,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 14:40:49,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 14:40:49,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 14:40:49,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 14:40:49,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 14:40:49,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 14:40:49,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 14:40:49,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 14:40:49,992 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 14:40:49,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 14:40:49,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 14:40:49,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 14:40:49,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 14:40:49,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 14:40:49,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 14:40:49,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 14:40:49,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 14:40:49,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 14:40:49,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 14:40:49,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 14:40:49,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 14:40:49,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 14:40:49,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 14:40:49,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 14:40:49,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:40:49,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 14:40:49,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 14:40:49,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 14:40:49,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 14:40:49,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 14:40:49,996 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 14:40:49,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 14:40:49,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 14:40:49,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 14:40:49,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6954a366a92a56976ad3f15dd01067d582436273e28a74386bd548c596ad28b [2021-12-14 14:40:50,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 14:40:50,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 14:40:50,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 14:40:50,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 14:40:50,171 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 14:40:50,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product35.cil.c [2021-12-14 14:40:50,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269b70f1f/88ecd0dc5e394c1fbb2c596dad9c0729/FLAG54674e732 [2021-12-14 14:40:50,707 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 14:40:50,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product35.cil.c [2021-12-14 14:40:50,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269b70f1f/88ecd0dc5e394c1fbb2c596dad9c0729/FLAG54674e732 [2021-12-14 14:40:51,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269b70f1f/88ecd0dc5e394c1fbb2c596dad9c0729 [2021-12-14 14:40:51,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 14:40:51,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 14:40:51,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 14:40:51,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 14:40:51,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 14:40:51,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:51,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c41197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51, skipping insertion in model container [2021-12-14 14:40:51,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:51,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 14:40:51,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 14:40:51,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product35.cil.c[48298,48311] [2021-12-14 14:40:51,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:40:51,825 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 14:40:51,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product35.cil.c[48298,48311] [2021-12-14 14:40:51,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:40:51,914 INFO L208 MainTranslator]: Completed translation [2021-12-14 14:40:51,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51 WrapperNode [2021-12-14 14:40:51,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 14:40:51,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 14:40:51,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 14:40:51,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 14:40:51,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:51,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,041 INFO L137 Inliner]: procedures = 137, calls = 244, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1135 [2021-12-14 14:40:52,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 14:40:52,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 14:40:52,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 14:40:52,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 14:40:52,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 14:40:52,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 14:40:52,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 14:40:52,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 14:40:52,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (1/1) ... [2021-12-14 14:40:52,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:40:52,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:52,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 14:40:52,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 14:40:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-14 14:40:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-14 14:40:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-14 14:40:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-14 14:40:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-14 14:40:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-14 14:40:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-14 14:40:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-14 14:40:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-14 14:40:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-14 14:40:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-14 14:40:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-14 14:40:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-14 14:40:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-14 14:40:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-14 14:40:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-14 14:40:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-14 14:40:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-14 14:40:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-14 14:40:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-14 14:40:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-14 14:40:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-14 14:40:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-14 14:40:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-14 14:40:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-14 14:40:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-14 14:40:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-14 14:40:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-14 14:40:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-14 14:40:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-14 14:40:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-14 14:40:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-14 14:40:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-14 14:40:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 14:40:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-14 14:40:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-14 14:40:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-14 14:40:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-14 14:40:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-14 14:40:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-14 14:40:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-14 14:40:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-14 14:40:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-14 14:40:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-14 14:40:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-14 14:40:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-14 14:40:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-14 14:40:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-14 14:40:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-14 14:40:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-14 14:40:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-14 14:40:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-14 14:40:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-14 14:40:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-14 14:40:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-14 14:40:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-14 14:40:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 14:40:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-14 14:40:52,206 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-14 14:40:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-14 14:40:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-14 14:40:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 14:40:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 14:40:52,387 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 14:40:52,388 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 14:40:52,951 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 14:40:52,964 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 14:40:52,965 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 14:40:52,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:52 BoogieIcfgContainer [2021-12-14 14:40:52,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 14:40:52,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 14:40:52,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 14:40:52,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 14:40:52,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:40:51" (1/3) ... [2021-12-14 14:40:52,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfed699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:40:52, skipping insertion in model container [2021-12-14 14:40:52,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:51" (2/3) ... [2021-12-14 14:40:52,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfed699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:40:52, skipping insertion in model container [2021-12-14 14:40:52,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:52" (3/3) ... [2021-12-14 14:40:52,974 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec7_product35.cil.c [2021-12-14 14:40:52,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 14:40:52,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 14:40:53,017 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 14:40:53,022 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 14:40:53,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 14:40:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-12-14 14:40:53,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-14 14:40:53,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:53,063 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:53,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:53,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:53,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2001656756, now seen corresponding path program 1 times [2021-12-14 14:40:53,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:53,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842994395] [2021-12-14 14:40:53,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:53,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 14:40:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 14:40:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:40:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:40:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:40:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:40:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:40:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:40:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:40:53,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842994395] [2021-12-14 14:40:53,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842994395] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:53,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576009813] [2021-12-14 14:40:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:53,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:53,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:53,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:40:53,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 14:40:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:53,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-14 14:40:53,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-14 14:40:53,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:53,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576009813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:53,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:53,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-14 14:40:53,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247417410] [2021-12-14 14:40:53,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:53,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 14:40:53,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 14:40:53,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:53,911 INFO L87 Difference]: Start difference. First operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:53,977 INFO L93 Difference]: Finished difference Result 728 states and 1078 transitions. [2021-12-14 14:40:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 14:40:53,979 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2021-12-14 14:40:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:53,989 INFO L225 Difference]: With dead ends: 728 [2021-12-14 14:40:53,989 INFO L226 Difference]: Without dead ends: 456 [2021-12-14 14:40:53,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:53,997 INFO L933 BasicCegarLoop]: 694 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, 694 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:53,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-14 14:40:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-12-14 14:40:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 352 states have (on average 1.53125) internal successors, (539), 356 states have internal predecessors, (539), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2021-12-14 14:40:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2021-12-14 14:40:54,052 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 129 [2021-12-14 14:40:54,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:54,054 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2021-12-14 14:40:54,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2021-12-14 14:40:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-14 14:40:54,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:54,058 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:54,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:54,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-14 14:40:54,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:54,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1855759113, now seen corresponding path program 1 times [2021-12-14 14:40:54,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:54,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331383823] [2021-12-14 14:40:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:54,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 14:40:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 14:40:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:40:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:40:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:40:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:40:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:40:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:40:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 14:40:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-14 14:40:54,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:54,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331383823] [2021-12-14 14:40:54,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331383823] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:54,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278175570] [2021-12-14 14:40:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:54,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:54,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:54,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:40:54,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 14:40:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 14:40:54,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 14:40:54,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:54,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278175570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:54,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:54,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:40:54,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301349227] [2021-12-14 14:40:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:54,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:40:54,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:40:54,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:54,959 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (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) [2021-12-14 14:40:55,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:55,002 INFO L93 Difference]: Finished difference Result 718 states and 1056 transitions. [2021-12-14 14:40:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:40:55,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (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 149 [2021-12-14 14:40:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:55,006 INFO L225 Difference]: With dead ends: 718 [2021-12-14 14:40:55,006 INFO L226 Difference]: Without dead ends: 459 [2021-12-14 14:40:55,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:55,008 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 1 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:55,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1366 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:55,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-12-14 14:40:55,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2021-12-14 14:40:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 354 states have (on average 1.5282485875706215) internal successors, (541), 358 states have internal predecessors, (541), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2021-12-14 14:40:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 688 transitions. [2021-12-14 14:40:55,034 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 688 transitions. Word has length 149 [2021-12-14 14:40:55,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:55,035 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 688 transitions. [2021-12-14 14:40:55,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (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) [2021-12-14 14:40:55,035 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 688 transitions. [2021-12-14 14:40:55,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-14 14:40:55,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:55,038 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:55,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:55,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-14 14:40:55,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:55,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:55,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1131699180, now seen corresponding path program 1 times [2021-12-14 14:40:55,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:55,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191252448] [2021-12-14 14:40:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:55,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 14:40:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:40:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:40:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:40:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:40:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:40:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:40:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:40:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:40:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:40:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:40:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 14:40:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-14 14:40:55,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:55,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191252448] [2021-12-14 14:40:55,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191252448] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:55,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654897144] [2021-12-14 14:40:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:55,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:55,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:55,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:40:55,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 14:40:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:55,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:40:55,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 14:40:55,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:55,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654897144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:55,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:55,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:40:55,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301353076] [2021-12-14 14:40:55,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:55,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:40:55,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:55,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:40:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:55,855 INFO L87 Difference]: Start difference. First operand 458 states and 688 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, (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) [2021-12-14 14:40:55,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:55,880 INFO L93 Difference]: Finished difference Result 969 states and 1476 transitions. [2021-12-14 14:40:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:40:55,880 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, (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 158 [2021-12-14 14:40:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:55,889 INFO L225 Difference]: With dead ends: 969 [2021-12-14 14:40:55,890 INFO L226 Difference]: Without dead ends: 538 [2021-12-14 14:40:55,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:55,892 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 142 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:55,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1347 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-14 14:40:55,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2021-12-14 14:40:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.5485436893203883) internal successors, (638), 416 states have internal predecessors, (638), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2021-12-14 14:40:55,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 813 transitions. [2021-12-14 14:40:55,933 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 813 transitions. Word has length 158 [2021-12-14 14:40:55,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:55,934 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 813 transitions. [2021-12-14 14:40:55,934 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, (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) [2021-12-14 14:40:55,935 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 813 transitions. [2021-12-14 14:40:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-14 14:40:55,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:55,939 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:55,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:56,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:56,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:56,163 INFO L85 PathProgramCache]: Analyzing trace with hash -845320955, now seen corresponding path program 1 times [2021-12-14 14:40:56,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:56,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628035197] [2021-12-14 14:40:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:56,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 14:40:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:40:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:40:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:40:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:40:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:40:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:40:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:40:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:40:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 14:40:56,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:56,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628035197] [2021-12-14 14:40:56,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628035197] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:56,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073507125] [2021-12-14 14:40:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:56,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:56,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:56,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:40:56,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 14:40:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 14:40:56,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-14 14:40:56,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:56,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073507125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:56,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:56,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-14 14:40:56,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089944248] [2021-12-14 14:40:56,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:56,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:40:56,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:40:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:40:56,722 INFO L87 Difference]: Start difference. First operand 530 states and 813 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:56,773 INFO L93 Difference]: Finished difference Result 1051 states and 1616 transitions. [2021-12-14 14:40:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:40:56,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2021-12-14 14:40:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:56,776 INFO L225 Difference]: With dead ends: 1051 [2021-12-14 14:40:56,776 INFO L226 Difference]: Without dead ends: 532 [2021-12-14 14:40:56,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:56,778 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 160 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:56,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2526 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:56,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-12-14 14:40:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2021-12-14 14:40:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 413 states have (on average 1.5472154963680387) internal successors, (639), 418 states have internal predecessors, (639), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2021-12-14 14:40:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 816 transitions. [2021-12-14 14:40:56,794 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 816 transitions. Word has length 140 [2021-12-14 14:40:56,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:56,794 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 816 transitions. [2021-12-14 14:40:56,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:56,795 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 816 transitions. [2021-12-14 14:40:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-14 14:40:56,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:56,797 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:56,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:57,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:57,012 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:57,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1572508023, now seen corresponding path program 1 times [2021-12-14 14:40:57,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:57,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048206669] [2021-12-14 14:40:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:57,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 14:40:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 14:40:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:40:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:40:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:40:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:40:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:40:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 14:40:57,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:57,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048206669] [2021-12-14 14:40:57,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048206669] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:57,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428430266] [2021-12-14 14:40:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:57,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:57,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:57,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:40:57,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 14:40:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 14:40:57,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:57,573 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-14 14:40:57,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:57,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428430266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:57,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:57,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-14 14:40:57,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337123377] [2021-12-14 14:40:57,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:57,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:40:57,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:57,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:40:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:40:57,575 INFO L87 Difference]: Start difference. First operand 532 states and 816 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:57,628 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2021-12-14 14:40:57,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:40:57,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2021-12-14 14:40:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:57,631 INFO L225 Difference]: With dead ends: 1053 [2021-12-14 14:40:57,631 INFO L226 Difference]: Without dead ends: 534 [2021-12-14 14:40:57,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-14 14:40:57,633 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 159 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:57,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2515 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:57,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-14 14:40:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2021-12-14 14:40:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2021-12-14 14:40:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 822 transitions. [2021-12-14 14:40:57,648 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 822 transitions. Word has length 141 [2021-12-14 14:40:57,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:57,648 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 822 transitions. [2021-12-14 14:40:57,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:57,649 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 822 transitions. [2021-12-14 14:40:57,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-14 14:40:57,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:57,651 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:57,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-14 14:40:57,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:57,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1140479989, now seen corresponding path program 1 times [2021-12-14 14:40:57,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845850653] [2021-12-14 14:40:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:57,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 14:40:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:40:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 14:40:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:40:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:40:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:40:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:40:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:40:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:40:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:40:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-14 14:40:58,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:58,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845850653] [2021-12-14 14:40:58,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845850653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:58,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:58,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:40:58,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020720971] [2021-12-14 14:40:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:58,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:40:58,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:58,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:40:58,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:58,039 INFO L87 Difference]: Start difference. First operand 534 states and 822 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 14:41:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:00,103 INFO L93 Difference]: Finished difference Result 1275 states and 1989 transitions. [2021-12-14 14:41:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:41:00,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2021-12-14 14:41:00,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:00,107 INFO L225 Difference]: With dead ends: 1275 [2021-12-14 14:41:00,107 INFO L226 Difference]: Without dead ends: 764 [2021-12-14 14:41:00,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:41:00,110 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 1782 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 2551 mSolverCounterSat, 735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 735 IncrementalHoareTripleChecker+Valid, 2551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:00,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1802 Valid, 2181 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [735 Valid, 2551 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 14:41:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-12-14 14:41:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 534. [2021-12-14 14:41:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2021-12-14 14:41:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 821 transitions. [2021-12-14 14:41:00,136 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 821 transitions. Word has length 161 [2021-12-14 14:41:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:00,137 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 821 transitions. [2021-12-14 14:41:00,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 14:41:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 821 transitions. [2021-12-14 14:41:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-14 14:41:00,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:00,139 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:00,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 14:41:00,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:00,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 318305024, now seen corresponding path program 1 times [2021-12-14 14:41:00,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495343790] [2021-12-14 14:41:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:00,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 14:41:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:41:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 14:41:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:41:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:41:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:41:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:41:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:41:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:41:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:41:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:41:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 14:41:00,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:00,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495343790] [2021-12-14 14:41:00,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495343790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:00,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:00,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:41:00,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642525870] [2021-12-14 14:41:00,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:00,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:41:00,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:41:00,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:41:00,263 INFO L87 Difference]: Start difference. First operand 534 states and 821 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:41:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:02,028 INFO L93 Difference]: Finished difference Result 1277 states and 1992 transitions. [2021-12-14 14:41:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:41:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2021-12-14 14:41:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:02,033 INFO L225 Difference]: With dead ends: 1277 [2021-12-14 14:41:02,033 INFO L226 Difference]: Without dead ends: 766 [2021-12-14 14:41:02,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:41:02,035 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1947 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:02,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1967 Valid, 2094 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 14:41:02,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-14 14:41:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2021-12-14 14:41:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2021-12-14 14:41:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 824 transitions. [2021-12-14 14:41:02,058 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 824 transitions. Word has length 143 [2021-12-14 14:41:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:02,058 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 824 transitions. [2021-12-14 14:41:02,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:41:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 824 transitions. [2021-12-14 14:41:02,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-14 14:41:02,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:02,060 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:02,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 14:41:02,061 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:02,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:02,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1893836985, now seen corresponding path program 1 times [2021-12-14 14:41:02,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:02,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937583348] [2021-12-14 14:41:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:02,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:41:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:41:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:41:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:41:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:41:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:41:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:41:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:41:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:41:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:41:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 14:41:02,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937583348] [2021-12-14 14:41:02,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937583348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:02,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:02,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:41:02,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849017597] [2021-12-14 14:41:02,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:02,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:41:02,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:02,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:41:02,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:41:02,174 INFO L87 Difference]: Start difference. First operand 536 states and 824 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2021-12-14 14:41:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:04,475 INFO L93 Difference]: Finished difference Result 1275 states and 1987 transitions. [2021-12-14 14:41:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:41:04,476 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 144 [2021-12-14 14:41:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:04,480 INFO L225 Difference]: With dead ends: 1275 [2021-12-14 14:41:04,480 INFO L226 Difference]: Without dead ends: 766 [2021-12-14 14:41:04,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-14 14:41:04,481 INFO L933 BasicCegarLoop]: 729 mSDtfsCounter, 2028 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 4233 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 5060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 4233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:04,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2028 Valid, 2769 Invalid, 5060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [827 Valid, 4233 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 14:41:04,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-14 14:41:04,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2021-12-14 14:41:04,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2021-12-14 14:41:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 823 transitions. [2021-12-14 14:41:04,504 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 823 transitions. Word has length 144 [2021-12-14 14:41:04,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:04,504 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 823 transitions. [2021-12-14 14:41:04,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2021-12-14 14:41:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 823 transitions. [2021-12-14 14:41:04,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-14 14:41:04,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:04,506 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:04,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 14:41:04,507 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash -719619727, now seen corresponding path program 1 times [2021-12-14 14:41:04,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:04,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157722870] [2021-12-14 14:41:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:04,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:41:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:41:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:41:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:41:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:41:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:41:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:41:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:41:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:41:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:41:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:41:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 14:41:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 14:41:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:04,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:04,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157722870] [2021-12-14 14:41:04,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157722870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:04,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:04,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:41:04,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743800696] [2021-12-14 14:41:04,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:04,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:41:04,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:04,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:41:04,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:41:04,628 INFO L87 Difference]: Start difference. First operand 536 states and 823 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-14 14:41:07,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:07,015 INFO L93 Difference]: Finished difference Result 1277 states and 1993 transitions. [2021-12-14 14:41:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:41:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 164 [2021-12-14 14:41:07,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:07,021 INFO L225 Difference]: With dead ends: 1277 [2021-12-14 14:41:07,021 INFO L226 Difference]: Without dead ends: 768 [2021-12-14 14:41:07,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-14 14:41:07,024 INFO L933 BasicCegarLoop]: 745 mSDtfsCounter, 2000 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 5159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:07,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 2802 Invalid, 5159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [816 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-14 14:41:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-12-14 14:41:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 538. [2021-12-14 14:41:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 416 states have (on average 1.5432692307692308) internal successors, (642), 424 states have internal predecessors, (642), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2021-12-14 14:41:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2021-12-14 14:41:07,059 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 164 [2021-12-14 14:41:07,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:07,059 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2021-12-14 14:41:07,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-14 14:41:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2021-12-14 14:41:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-14 14:41:07,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:07,062 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:07,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 14:41:07,062 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:07,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash 995156866, now seen corresponding path program 1 times [2021-12-14 14:41:07,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:07,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671644702] [2021-12-14 14:41:07,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:07,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:41:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:41:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:41:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:41:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:41:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:41:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:41:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:41:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:41:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 14:41:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 14:41:07,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:07,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671644702] [2021-12-14 14:41:07,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671644702] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:41:07,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660272590] [2021-12-14 14:41:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:07,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:41:07,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:41:07,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:41:07,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 14:41:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:41:07,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:41:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:07,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:41:07,812 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:07,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660272590] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:41:07,812 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:41:07,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-14 14:41:07,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427284715] [2021-12-14 14:41:07,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:41:07,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 14:41:07,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:07,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 14:41:07,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:41:07,813 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 11 states have internal predecessors, (155), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2021-12-14 14:41:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:11,400 INFO L93 Difference]: Finished difference Result 2186 states and 3631 transitions. [2021-12-14 14:41:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 14:41:11,401 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 11 states have internal predecessors, (155), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 146 [2021-12-14 14:41:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:11,408 INFO L225 Difference]: With dead ends: 2186 [2021-12-14 14:41:11,408 INFO L226 Difference]: Without dead ends: 1679 [2021-12-14 14:41:11,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-14 14:41:11,410 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 4321 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 6851 mSolverCounterSat, 1828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4323 SdHoareTripleChecker+Valid, 5202 SdHoareTripleChecker+Invalid, 8679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1828 IncrementalHoareTripleChecker+Valid, 6851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:11,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4323 Valid, 5202 Invalid, 8679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1828 Valid, 6851 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-14 14:41:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2021-12-14 14:41:11,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 981. [2021-12-14 14:41:11,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 780 states have (on average 1.6) internal successors, (1248), 788 states have internal predecessors, (1248), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2021-12-14 14:41:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1603 transitions. [2021-12-14 14:41:11,451 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1603 transitions. Word has length 146 [2021-12-14 14:41:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:11,451 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 1603 transitions. [2021-12-14 14:41:11,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 11 states have internal predecessors, (155), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2021-12-14 14:41:11,452 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1603 transitions. [2021-12-14 14:41:11,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-14 14:41:11,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:11,455 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:11,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 14:41:11,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:41:11,671 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash 119858384, now seen corresponding path program 1 times [2021-12-14 14:41:11,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:11,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879845861] [2021-12-14 14:41:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:11,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:41:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:41:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:41:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:41:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:41:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:41:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:41:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:41:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:41:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 14:41:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 14:41:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 14:41:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 14:41:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:41:11,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:11,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879845861] [2021-12-14 14:41:11,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879845861] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:11,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:11,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:11,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026380900] [2021-12-14 14:41:11,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:11,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:11,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:11,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:11,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:11,762 INFO L87 Difference]: Start difference. First operand 981 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:13,082 INFO L93 Difference]: Finished difference Result 2537 states and 4239 transitions. [2021-12-14 14:41:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:13,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2021-12-14 14:41:13,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:13,092 INFO L225 Difference]: With dead ends: 2537 [2021-12-14 14:41:13,092 INFO L226 Difference]: Without dead ends: 1634 [2021-12-14 14:41:13,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:13,096 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 1884 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 836 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 836 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:13,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1903 Valid, 1760 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [836 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:41:13,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2021-12-14 14:41:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1396. [2021-12-14 14:41:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1116 states have (on average 1.6200716845878136) internal successors, (1808), 1124 states have internal predecessors, (1808), 246 states have call successors, (246), 29 states have call predecessors, (246), 33 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2021-12-14 14:41:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2331 transitions. [2021-12-14 14:41:13,170 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2331 transitions. Word has length 168 [2021-12-14 14:41:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:13,171 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 2331 transitions. [2021-12-14 14:41:13,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2331 transitions. [2021-12-14 14:41:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-14 14:41:13,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:13,176 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:13,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 14:41:13,176 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash 187677950, now seen corresponding path program 1 times [2021-12-14 14:41:13,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:13,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562148526] [2021-12-14 14:41:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:13,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:41:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:41:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:41:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:41:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:41:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:41:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:41:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:41:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:41:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:41:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:13,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:13,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562148526] [2021-12-14 14:41:13,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562148526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:13,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:13,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:13,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615241624] [2021-12-14 14:41:13,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:13,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:13,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:13,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:13,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:13,262 INFO L87 Difference]: Start difference. First operand 1396 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:14,662 INFO L93 Difference]: Finished difference Result 3576 states and 6052 transitions. [2021-12-14 14:41:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2021-12-14 14:41:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:14,671 INFO L225 Difference]: With dead ends: 3576 [2021-12-14 14:41:14,671 INFO L226 Difference]: Without dead ends: 2311 [2021-12-14 14:41:14,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:14,675 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 1757 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:14,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1776 Valid, 1803 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 14:41:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2021-12-14 14:41:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2073. [2021-12-14 14:41:14,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1674 states have (on average 1.6308243727598566) internal successors, (2730), 1682 states have internal predecessors, (2730), 365 states have call successors, (365), 29 states have call predecessors, (365), 33 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2021-12-14 14:41:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3491 transitions. [2021-12-14 14:41:14,754 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3491 transitions. Word has length 150 [2021-12-14 14:41:14,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:14,754 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 3491 transitions. [2021-12-14 14:41:14,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:14,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3491 transitions. [2021-12-14 14:41:14,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-14 14:41:14,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:14,762 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:14,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 14:41:14,762 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:14,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:14,762 INFO L85 PathProgramCache]: Analyzing trace with hash 466038050, now seen corresponding path program 1 times [2021-12-14 14:41:14,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:14,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789347439] [2021-12-14 14:41:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:14,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:41:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:41:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:41:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:41:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:41:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:41:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:41:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:41:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:41:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:41:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 14:41:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 14:41:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 14:41:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:41:14,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:14,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789347439] [2021-12-14 14:41:14,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789347439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:14,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:14,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:14,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806183723] [2021-12-14 14:41:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:14,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:14,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:14,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:14,859 INFO L87 Difference]: Start difference. First operand 2073 states and 3491 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:16,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:16,024 INFO L93 Difference]: Finished difference Result 5161 states and 8831 transitions. [2021-12-14 14:41:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:16,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 170 [2021-12-14 14:41:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:16,038 INFO L225 Difference]: With dead ends: 5161 [2021-12-14 14:41:16,038 INFO L226 Difference]: Without dead ends: 3354 [2021-12-14 14:41:16,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:16,044 INFO L933 BasicCegarLoop]: 772 mSDtfsCounter, 1916 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:16,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1936 Valid, 1712 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:41:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2021-12-14 14:41:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3116. [2021-12-14 14:41:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2555 states have (on average 1.6391389432485324) internal successors, (4188), 2563 states have internal predecessors, (4188), 527 states have call successors, (527), 29 states have call predecessors, (527), 33 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2021-12-14 14:41:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5289 transitions. [2021-12-14 14:41:16,184 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5289 transitions. Word has length 170 [2021-12-14 14:41:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:16,185 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5289 transitions. [2021-12-14 14:41:16,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5289 transitions. [2021-12-14 14:41:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-14 14:41:16,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:16,196 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:16,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 14:41:16,197 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:16,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:16,197 INFO L85 PathProgramCache]: Analyzing trace with hash 654634943, now seen corresponding path program 1 times [2021-12-14 14:41:16,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:16,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927077185] [2021-12-14 14:41:16,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:16,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:41:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:41:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:41:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:41:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:41:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:41:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:41:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:41:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:41:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 14:41:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:16,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927077185] [2021-12-14 14:41:16,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927077185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:16,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:16,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:16,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955078213] [2021-12-14 14:41:16,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:16,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:16,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:16,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:16,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:16,277 INFO L87 Difference]: Start difference. First operand 3116 states and 5289 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:17,651 INFO L93 Difference]: Finished difference Result 7675 states and 13246 transitions. [2021-12-14 14:41:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2021-12-14 14:41:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:17,700 INFO L225 Difference]: With dead ends: 7675 [2021-12-14 14:41:17,701 INFO L226 Difference]: Without dead ends: 5044 [2021-12-14 14:41:17,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:17,709 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 1874 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:17,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1894 Valid, 1732 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:41:17,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2021-12-14 14:41:17,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 4806. [2021-12-14 14:41:17,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4000 states have (on average 1.645) internal successors, (6580), 4008 states have internal predecessors, (6580), 772 states have call successors, (772), 29 states have call predecessors, (772), 33 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2021-12-14 14:41:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 8197 transitions. [2021-12-14 14:41:17,922 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 8197 transitions. Word has length 152 [2021-12-14 14:41:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:17,922 INFO L470 AbstractCegarLoop]: Abstraction has 4806 states and 8197 transitions. [2021-12-14 14:41:17,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 8197 transitions. [2021-12-14 14:41:17,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-14 14:41:17,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:17,938 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:17,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 14:41:17,938 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:17,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:17,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1407177221, now seen corresponding path program 1 times [2021-12-14 14:41:17,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:17,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237203856] [2021-12-14 14:41:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:17,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:41:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:41:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:41:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:41:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:17,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:41:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:41:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:41:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:41:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:41:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:41:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:18,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:18,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237203856] [2021-12-14 14:41:18,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237203856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:18,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:18,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:18,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124558130] [2021-12-14 14:41:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:18,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:18,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:18,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:18,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:18,014 INFO L87 Difference]: Start difference. First operand 4806 states and 8197 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:19,632 INFO L93 Difference]: Finished difference Result 11876 states and 20623 transitions. [2021-12-14 14:41:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:19,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2021-12-14 14:41:19,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:19,693 INFO L225 Difference]: With dead ends: 11876 [2021-12-14 14:41:19,699 INFO L226 Difference]: Without dead ends: 7887 [2021-12-14 14:41:19,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:19,723 INFO L933 BasicCegarLoop]: 774 mSDtfsCounter, 1885 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:19,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1905 Valid, 1721 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:41:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2021-12-14 14:41:20,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7649. [2021-12-14 14:41:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 6350 states have (on average 1.6439370078740156) internal successors, (10439), 6358 states have internal predecessors, (10439), 1265 states have call successors, (1265), 29 states have call predecessors, (1265), 33 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2021-12-14 14:41:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 13086 transitions. [2021-12-14 14:41:20,214 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 13086 transitions. Word has length 153 [2021-12-14 14:41:20,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:20,214 INFO L470 AbstractCegarLoop]: Abstraction has 7649 states and 13086 transitions. [2021-12-14 14:41:20,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 13086 transitions. [2021-12-14 14:41:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-14 14:41:20,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:20,235 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:20,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 14:41:20,235 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2088379170, now seen corresponding path program 1 times [2021-12-14 14:41:20,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:20,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111702893] [2021-12-14 14:41:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:20,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:41:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:41:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:41:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:41:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:41:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:41:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:41:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:41:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:41:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:41:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 14:41:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 14:41:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 14:41:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:41:20,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:20,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111702893] [2021-12-14 14:41:20,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111702893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:20,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:20,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:20,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670289125] [2021-12-14 14:41:20,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:20,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:20,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:20,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:20,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:20,313 INFO L87 Difference]: Start difference. First operand 7649 states and 13086 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:22,122 INFO L93 Difference]: Finished difference Result 19491 states and 33899 transitions. [2021-12-14 14:41:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:22,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2021-12-14 14:41:22,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:22,162 INFO L225 Difference]: With dead ends: 19491 [2021-12-14 14:41:22,162 INFO L226 Difference]: Without dead ends: 13061 [2021-12-14 14:41:22,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:22,180 INFO L933 BasicCegarLoop]: 792 mSDtfsCounter, 1846 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:22,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1867 Valid, 1735 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:41:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2021-12-14 14:41:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 12823. [2021-12-14 14:41:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12823 states, 10702 states have (on average 1.6447393010652214) internal successors, (17602), 10710 states have internal predecessors, (17602), 2087 states have call successors, (2087), 29 states have call predecessors, (2087), 33 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2021-12-14 14:41:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 21971 transitions. [2021-12-14 14:41:22,750 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 21971 transitions. Word has length 173 [2021-12-14 14:41:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:22,751 INFO L470 AbstractCegarLoop]: Abstraction has 12823 states and 21971 transitions. [2021-12-14 14:41:22,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 21971 transitions. [2021-12-14 14:41:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-14 14:41:22,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:22,780 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:22,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 14:41:22,781 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash -18072247, now seen corresponding path program 1 times [2021-12-14 14:41:22,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:22,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113874802] [2021-12-14 14:41:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:22,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:41:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:41:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:41:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:41:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:41:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:41:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:41:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:41:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:41:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:41:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:22,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:22,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113874802] [2021-12-14 14:41:22,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113874802] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:22,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:22,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:22,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879251585] [2021-12-14 14:41:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:22,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:22,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:22,853 INFO L87 Difference]: Start difference. First operand 12823 states and 21971 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:24,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:24,875 INFO L93 Difference]: Finished difference Result 30974 states and 53599 transitions. [2021-12-14 14:41:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:24,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2021-12-14 14:41:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:24,935 INFO L225 Difference]: With dead ends: 30974 [2021-12-14 14:41:24,935 INFO L226 Difference]: Without dead ends: 20374 [2021-12-14 14:41:24,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:24,958 INFO L933 BasicCegarLoop]: 776 mSDtfsCounter, 1857 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:24,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1877 Valid, 1694 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:41:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2021-12-14 14:41:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 20136. [2021-12-14 14:41:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20136 states, 16812 states have (on average 1.6207470854151795) internal successors, (27248), 16820 states have internal predecessors, (27248), 3290 states have call successors, (3290), 29 states have call predecessors, (3290), 33 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2021-12-14 14:41:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 34167 transitions. [2021-12-14 14:41:25,848 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 34167 transitions. Word has length 155 [2021-12-14 14:41:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:25,849 INFO L470 AbstractCegarLoop]: Abstraction has 20136 states and 34167 transitions. [2021-12-14 14:41:25,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 34167 transitions. [2021-12-14 14:41:25,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-14 14:41:25,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:25,882 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:25,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 14:41:25,883 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1545133219, now seen corresponding path program 1 times [2021-12-14 14:41:25,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:25,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120561372] [2021-12-14 14:41:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:25,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:41:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:41:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:41:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:41:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:41:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:41:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:41:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:41:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:41:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:41:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:41:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 14:41:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 14:41:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:41:25,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:25,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120561372] [2021-12-14 14:41:25,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120561372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:25,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:25,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:25,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510110552] [2021-12-14 14:41:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:25,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:25,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:25,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:25,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:25,971 INFO L87 Difference]: Start difference. First operand 20136 states and 34167 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:28,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:28,774 INFO L93 Difference]: Finished difference Result 53416 states and 92133 transitions. [2021-12-14 14:41:28,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:28,774 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 175 [2021-12-14 14:41:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:28,880 INFO L225 Difference]: With dead ends: 53416 [2021-12-14 14:41:28,880 INFO L226 Difference]: Without dead ends: 36180 [2021-12-14 14:41:28,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:28,914 INFO L933 BasicCegarLoop]: 776 mSDtfsCounter, 1895 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:28,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1915 Valid, 1719 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 14:41:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36180 states. [2021-12-14 14:41:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36180 to 35942. [2021-12-14 14:41:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35942 states, 30168 states have (on average 1.61793953858393) internal successors, (48810), 30176 states have internal predecessors, (48810), 5740 states have call successors, (5740), 29 states have call predecessors, (5740), 33 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2021-12-14 14:41:30,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35942 states to 35942 states and 60903 transitions. [2021-12-14 14:41:30,724 INFO L78 Accepts]: Start accepts. Automaton has 35942 states and 60903 transitions. Word has length 175 [2021-12-14 14:41:30,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:30,725 INFO L470 AbstractCegarLoop]: Abstraction has 35942 states and 60903 transitions. [2021-12-14 14:41:30,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand 35942 states and 60903 transitions. [2021-12-14 14:41:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-14 14:41:30,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:30,772 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:30,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 14:41:30,773 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:30,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1392090307, now seen corresponding path program 1 times [2021-12-14 14:41:30,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:30,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308032887] [2021-12-14 14:41:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:30,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:41:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:41:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:41:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:41:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:41:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:41:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:41:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:41:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 14:41:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 14:41:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:30,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:30,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308032887] [2021-12-14 14:41:30,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308032887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:30,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:30,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:30,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265071811] [2021-12-14 14:41:30,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:30,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:30,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:30,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:30,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:30,877 INFO L87 Difference]: Start difference. First operand 35942 states and 60903 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:34,565 INFO L93 Difference]: Finished difference Result 98263 states and 168692 transitions. [2021-12-14 14:41:34,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:34,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2021-12-14 14:41:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:34,812 INFO L225 Difference]: With dead ends: 98263 [2021-12-14 14:41:34,812 INFO L226 Difference]: Without dead ends: 66177 [2021-12-14 14:41:34,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:34,907 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 1873 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:34,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1893 Valid, 1747 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [827 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 14:41:35,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66177 states. [2021-12-14 14:41:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66177 to 65939. [2021-12-14 14:41:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65939 states, 55652 states have (on average 1.6140120750377345) internal successors, (89823), 55660 states have internal predecessors, (89823), 10253 states have call successors, (10253), 29 states have call predecessors, (10253), 33 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2021-12-14 14:41:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65939 states to 65939 states and 111474 transitions. [2021-12-14 14:41:38,286 INFO L78 Accepts]: Start accepts. Automaton has 65939 states and 111474 transitions. Word has length 157 [2021-12-14 14:41:38,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:38,287 INFO L470 AbstractCegarLoop]: Abstraction has 65939 states and 111474 transitions. [2021-12-14 14:41:38,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:38,287 INFO L276 IsEmpty]: Start isEmpty. Operand 65939 states and 111474 transitions. [2021-12-14 14:41:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-14 14:41:38,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:38,349 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:38,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 14:41:38,349 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:38,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:38,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1476179229, now seen corresponding path program 1 times [2021-12-14 14:41:38,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:38,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180582314] [2021-12-14 14:41:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:38,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:41:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:41:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:41:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:41:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:41:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:41:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:41:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:41:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 14:41:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 14:41:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 14:41:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 14:41:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 14:41:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:41:38,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:38,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180582314] [2021-12-14 14:41:38,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180582314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:38,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:38,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:38,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763555936] [2021-12-14 14:41:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:38,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:38,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:38,448 INFO L87 Difference]: Start difference. First operand 65939 states and 111474 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:43,725 INFO L93 Difference]: Finished difference Result 123924 states and 213125 transitions. [2021-12-14 14:41:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 177 [2021-12-14 14:41:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:44,321 INFO L225 Difference]: With dead ends: 123924 [2021-12-14 14:41:44,321 INFO L226 Difference]: Without dead ends: 123665 [2021-12-14 14:41:44,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:44,373 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 1742 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:44,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1761 Valid, 1775 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:41:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123665 states. [2021-12-14 14:41:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123665 to 123427. [2021-12-14 14:41:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123427 states, 104772 states have (on average 1.6089699538044515) internal successors, (168575), 104780 states have internal predecessors, (168575), 18621 states have call successors, (18621), 29 states have call predecessors, (18621), 33 states have return successors, (20812), 18619 states have call predecessors, (20812), 18620 states have call successors, (20812) [2021-12-14 14:41:50,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123427 states to 123427 states and 208008 transitions. [2021-12-14 14:41:50,586 INFO L78 Accepts]: Start accepts. Automaton has 123427 states and 208008 transitions. Word has length 177 [2021-12-14 14:41:50,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:50,588 INFO L470 AbstractCegarLoop]: Abstraction has 123427 states and 208008 transitions. [2021-12-14 14:41:50,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:50,588 INFO L276 IsEmpty]: Start isEmpty. Operand 123427 states and 208008 transitions. [2021-12-14 14:41:50,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-14 14:41:50,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:50,682 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:50,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 14:41:50,682 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:50,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:50,683 INFO L85 PathProgramCache]: Analyzing trace with hash -395187870, now seen corresponding path program 1 times [2021-12-14 14:41:50,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:50,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370193068] [2021-12-14 14:41:50,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:50,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:41:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:41:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:41:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:41:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:41:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:41:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:41:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:41:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 14:41:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 14:41:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-14 14:41:50,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:50,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370193068] [2021-12-14 14:41:50,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370193068] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:41:50,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923107458] [2021-12-14 14:41:50,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:50,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:41:50,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:41:50,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:41:50,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 14:41:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:51,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1307 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-14 14:41:51,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:41:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 14:41:51,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:41:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-14 14:41:52,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923107458] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:41:52,059 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:41:52,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2021-12-14 14:41:52,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231608166] [2021-12-14 14:41:52,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:41:52,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-14 14:41:52,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:52,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-14 14:41:52,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2021-12-14 14:41:52,061 INFO L87 Difference]: Start difference. First operand 123427 states and 208008 transitions. Second operand has 32 states, 30 states have (on average 8.666666666666666) internal successors, (260), 24 states have internal predecessors, (260), 9 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (45), 11 states have call predecessors, (45), 9 states have call successors, (45)