./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_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_spec6_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 4b1644ee409dd7fb9188781699149bb283de125dad063a54175775584b617862 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 14:39:45,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 14:39:45,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 14:39:45,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 14:39:45,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 14:39:45,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 14:39:45,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 14:39:45,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 14:39:45,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 14:39:45,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 14:39:45,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 14:39:45,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 14:39:45,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 14:39:45,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 14:39:45,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 14:39:45,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 14:39:45,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 14:39:45,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 14:39:45,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 14:39:45,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 14:39:45,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 14:39:45,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 14:39:45,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 14:39:45,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 14:39:45,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 14:39:45,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 14:39:45,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 14:39:45,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 14:39:45,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 14:39:45,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 14:39:45,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 14:39:45,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 14:39:45,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 14:39:45,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 14:39:45,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 14:39:45,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 14:39:45,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 14:39:45,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 14:39:45,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 14:39:45,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 14:39:45,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 14:39:45,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 14:39:45,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 14:39:45,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 14:39:45,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 14:39:45,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 14:39:45,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 14:39:45,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 14:39:45,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 14:39:45,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 14:39:45,405 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 14:39:45,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 14:39:45,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 14:39:45,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 14:39:45,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 14:39:45,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 14:39:45,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 14:39:45,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 14:39:45,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 14:39:45,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 14:39:45,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 14:39:45,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 14:39:45,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 14:39:45,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 14:39:45,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 14:39:45,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 14:39:45,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:39:45,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 14:39:45,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 14:39:45,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 14:39:45,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 14:39:45,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 14:39:45,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 14:39:45,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 14:39:45,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 14:39:45,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 14:39:45,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1644ee409dd7fb9188781699149bb283de125dad063a54175775584b617862 [2021-12-14 14:39:45,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 14:39:45,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 14:39:45,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 14:39:45,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 14:39:45,617 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 14:39:45,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product35.cil.c [2021-12-14 14:39:45,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7583bc67/c192bf0c32084721a5aaa81abec75267/FLAG14151eb7a [2021-12-14 14:39:46,144 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 14:39:46,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product35.cil.c [2021-12-14 14:39:46,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7583bc67/c192bf0c32084721a5aaa81abec75267/FLAG14151eb7a [2021-12-14 14:39:46,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7583bc67/c192bf0c32084721a5aaa81abec75267 [2021-12-14 14:39:46,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 14:39:46,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 14:39:46,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 14:39:46,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 14:39:46,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 14:39:46,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544acf40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46, skipping insertion in model container [2021-12-14 14:39:46,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 14:39:46,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 14:39:46,542 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_spec6_product35.cil.c[24735,24748] [2021-12-14 14:39:46,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:39:46,621 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 14:39:46,650 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_spec6_product35.cil.c[24735,24748] [2021-12-14 14:39:46,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:39:46,705 INFO L208 MainTranslator]: Completed translation [2021-12-14 14:39:46,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46 WrapperNode [2021-12-14 14:39:46,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 14:39:46,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 14:39:46,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 14:39:46,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 14:39:46,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,791 INFO L137 Inliner]: procedures = 138, calls = 254, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1175 [2021-12-14 14:39:46,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 14:39:46,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 14:39:46,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 14:39:46,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 14:39:46,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 14:39:46,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 14:39:46,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 14:39:46,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 14:39:46,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (1/1) ... [2021-12-14 14:39:46,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:39:46,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:39:46,906 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 14:39:46,953 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 14:39:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-14 14:39:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-14 14:39:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-14 14:39:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-14 14:39:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-14 14:39:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-14 14:39:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-14 14:39:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-14 14:39:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-14 14:39:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-14 14:39:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-14 14:39:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-14 14:39:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-14 14:39:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-14 14:39:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-14 14:39:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-14 14:39:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-14 14:39:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-14 14:39:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-14 14:39:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-14 14:39:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-14 14:39:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-14 14:39:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-14 14:39:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-14 14:39:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-14 14:39:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-14 14:39:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-14 14:39:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-14 14:39:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-14 14:39:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-14 14:39:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-14 14:39:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-14 14:39:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-14 14:39:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 14:39:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-14 14:39:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-14 14:39:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-14 14:39:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-14 14:39:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-14 14:39:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-14 14:39:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-14 14:39:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-14 14:39:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-14 14:39:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-14 14:39:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-14 14:39:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-14 14:39:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-14 14:39:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-14 14:39:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-14 14:39:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-14 14:39:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-14 14:39:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-14 14:39:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-14 14:39:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-14 14:39:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-14 14:39:46,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-14 14:39:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 14:39:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-14 14:39:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-14 14:39:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-14 14:39:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-14 14:39:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 14:39:46,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 14:39:47,210 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 14:39:47,211 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 14:39:47,757 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 14:39:47,764 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 14:39:47,765 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 14:39:47,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:47 BoogieIcfgContainer [2021-12-14 14:39:47,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 14:39:47,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 14:39:47,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 14:39:47,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 14:39:47,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:39:46" (1/3) ... [2021-12-14 14:39:47,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f739d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:47, skipping insertion in model container [2021-12-14 14:39:47,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:46" (2/3) ... [2021-12-14 14:39:47,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f739d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:47, skipping insertion in model container [2021-12-14 14:39:47,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:47" (3/3) ... [2021-12-14 14:39:47,773 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product35.cil.c [2021-12-14 14:39:47,777 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 14:39:47,777 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 14:39:47,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 14:39:47,819 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 14:39:47,820 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 14:39:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 363 states have (on average 1.5316804407713498) internal successors, (556), 368 states have internal predecessors, (556), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2021-12-14 14:39:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-14 14:39:47,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:47,871 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:47,872 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:47,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2066103245, now seen corresponding path program 1 times [2021-12-14 14:39:47,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:47,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339787151] [2021-12-14 14:39:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:47,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:39:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:39:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:39:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 14:39:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 14:39:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:39:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:39:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:39:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:39:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:39:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:39:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:39:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:39:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:39:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:39:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,301 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 14:39:48,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:48,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339787151] [2021-12-14 14:39:48,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339787151] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:39:48,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338864252] [2021-12-14 14:39:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:48,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:39:48,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:39:48,304 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 14:39:48,305 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 14:39:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:48,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-14 14:39:48,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:39:48,798 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 14:39:48,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:39:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338864252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:48,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:39:48,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-14 14:39:48,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281647535] [2021-12-14 14:39:48,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:48,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 14:39:48,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:48,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 14:39:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:39:48,834 INFO L87 Difference]: Start difference. First operand has 471 states, 363 states have (on average 1.5316804407713498) internal successors, (556), 368 states have internal predecessors, (556), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:39:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:48,910 INFO L93 Difference]: Finished difference Result 744 states and 1102 transitions. [2021-12-14 14:39:48,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 14:39:48,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2021-12-14 14:39:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:48,928 INFO L225 Difference]: With dead ends: 744 [2021-12-14 14:39:48,928 INFO L226 Difference]: Without dead ends: 464 [2021-12-14 14:39:48,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:39:48,939 INFO L933 BasicCegarLoop]: 706 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, 706 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 14:39:48,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:39:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-12-14 14:39:48,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2021-12-14 14:39:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 357 states have (on average 1.526610644257703) internal successors, (545), 361 states have internal predecessors, (545), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2021-12-14 14:39:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 698 transitions. [2021-12-14 14:39:48,991 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 698 transitions. Word has length 135 [2021-12-14 14:39:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:48,993 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 698 transitions. [2021-12-14 14:39:48,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:39:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 698 transitions. [2021-12-14 14:39:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-14 14:39:48,999 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:48,999 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:49,035 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 14:39:49,220 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 14:39:49,220 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:49,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:49,221 INFO L85 PathProgramCache]: Analyzing trace with hash 473442191, now seen corresponding path program 1 times [2021-12-14 14:39:49,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:49,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236260574] [2021-12-14 14:39:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:49,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:39:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:39:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:39:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 14:39:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 14:39:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:39:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:39:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:39:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:39:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:39:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:39:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:39:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:39:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:39:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:39:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,366 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 14:39:49,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:49,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236260574] [2021-12-14 14:39:49,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236260574] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:39:49,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761913437] [2021-12-14 14:39:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:49,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:39:49,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:39:49,369 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 14:39:49,370 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 14:39:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:49,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 14:39:49,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:39:49,782 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 14:39:49,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:39:49,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761913437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:49,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:39:49,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:39:49,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807905369] [2021-12-14 14:39:49,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:49,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:39:49,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:49,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:39:49,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:39:49,785 INFO L87 Difference]: Start difference. First operand 464 states and 698 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:39:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:49,808 INFO L93 Difference]: Finished difference Result 734 states and 1080 transitions. [2021-12-14 14:39:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:39:49,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2021-12-14 14:39:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:49,811 INFO L225 Difference]: With dead ends: 734 [2021-12-14 14:39:49,811 INFO L226 Difference]: Without dead ends: 467 [2021-12-14 14:39:49,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 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 14:39:49,813 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 1 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1390 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 14:39:49,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1390 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:39:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-12-14 14:39:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 466. [2021-12-14 14:39:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 359 states have (on average 1.5236768802228413) internal successors, (547), 363 states have internal predecessors, (547), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2021-12-14 14:39:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 700 transitions. [2021-12-14 14:39:49,830 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 700 transitions. Word has length 136 [2021-12-14 14:39:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:49,831 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 700 transitions. [2021-12-14 14:39:49,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:39:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 700 transitions. [2021-12-14 14:39:49,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-14 14:39:49,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:49,836 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:49,855 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 14:39:50,036 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 14:39:50,037 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:50,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash 18662654, now seen corresponding path program 1 times [2021-12-14 14:39:50,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241811321] [2021-12-14 14:39:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:50,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:39:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:39:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:39:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 14:39:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:39:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:39:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:39:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:39:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:39:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:39:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:39:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:39:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:39:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:39:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 14:39:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,172 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 14:39:50,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:50,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241811321] [2021-12-14 14:39:50,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241811321] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:39:50,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605811701] [2021-12-14 14:39:50,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:50,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:39:50,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:39:50,176 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 14:39:50,177 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 14:39:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:39:50,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:39:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-14 14:39:50,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:39:50,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605811701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:50,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:39:50,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:39:50,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192110972] [2021-12-14 14:39:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:50,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:39:50,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:39:50,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:39:50,594 INFO L87 Difference]: Start difference. First operand 466 states and 700 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:39:50,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:50,615 INFO L93 Difference]: Finished difference Result 985 states and 1500 transitions. [2021-12-14 14:39:50,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:39:50,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2021-12-14 14:39:50,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:50,619 INFO L225 Difference]: With dead ends: 985 [2021-12-14 14:39:50,619 INFO L226 Difference]: Without dead ends: 546 [2021-12-14 14:39:50,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 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 14:39:50,621 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 142 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1369 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 14:39:50,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1369 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:39:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-12-14 14:39:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 538. [2021-12-14 14:39:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 417 states have (on average 1.5443645083932853) internal successors, (644), 421 states have internal predecessors, (644), 91 states have call successors, (91), 29 states have call predecessors, (91), 29 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2021-12-14 14:39:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 825 transitions. [2021-12-14 14:39:50,650 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 825 transitions. Word has length 145 [2021-12-14 14:39:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:50,650 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 825 transitions. [2021-12-14 14:39:50,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:39:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 825 transitions. [2021-12-14 14:39:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-14 14:39:50,653 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:50,653 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:50,671 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 14:39:50,871 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 14:39:50,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1932418513, now seen corresponding path program 1 times [2021-12-14 14:39:50,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:50,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869534929] [2021-12-14 14:39:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:50,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:39:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:39:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:39:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 14:39:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:39:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:50,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:39:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:39:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:39:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:39:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:39:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:39:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:39:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:39:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:39:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 14:39:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 14:39:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 14:39:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 14:39:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,047 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 14:39:51,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:51,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869534929] [2021-12-14 14:39:51,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869534929] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:39:51,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73964453] [2021-12-14 14:39:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:51,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:39:51,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:39:51,052 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 14:39:51,053 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 14:39:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 14:39:51,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:39:51,497 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 14:39:51,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:39:51,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73964453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:51,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:39:51,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-14 14:39:51,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047958896] [2021-12-14 14:39:51,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:51,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:39:51,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:51,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:39:51,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:39:51,499 INFO L87 Difference]: Start difference. First operand 538 states and 825 transitions. Second operand has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 14:39:51,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:51,541 INFO L93 Difference]: Finished difference Result 1067 states and 1640 transitions. [2021-12-14 14:39:51,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:39:51,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 165 [2021-12-14 14:39:51,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:51,544 INFO L225 Difference]: With dead ends: 1067 [2021-12-14 14:39:51,544 INFO L226 Difference]: Without dead ends: 540 [2021-12-14 14:39:51,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 200 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 14:39:51,546 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 160 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2574 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 14:39:51,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2574 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:39:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-12-14 14:39:51,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-12-14 14:39:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 418 states have (on average 1.5430622009569377) internal successors, (645), 423 states have internal predecessors, (645), 91 states have call successors, (91), 29 states have call predecessors, (91), 30 states have return successors, (92), 89 states have call predecessors, (92), 90 states have call successors, (92) [2021-12-14 14:39:51,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 828 transitions. [2021-12-14 14:39:51,561 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 828 transitions. Word has length 165 [2021-12-14 14:39:51,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:51,561 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 828 transitions. [2021-12-14 14:39:51,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 14:39:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 828 transitions. [2021-12-14 14:39:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-14 14:39:51,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:51,564 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:51,587 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 14:39:51,782 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 14:39:51,782 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:51,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:51,783 INFO L85 PathProgramCache]: Analyzing trace with hash -174520300, now seen corresponding path program 1 times [2021-12-14 14:39:51,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:51,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549425901] [2021-12-14 14:39:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:51,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:39:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 14:39:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 14:39:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:39:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:39:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:39:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:39:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:39:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:39:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:39:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:39:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:39:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:39:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:39:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:39:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:51,912 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 14:39:51,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:51,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549425901] [2021-12-14 14:39:51,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549425901] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:39:51,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011413556] [2021-12-14 14:39:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:51,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:39:51,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:39:51,914 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 14:39:51,960 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 14:39:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 14:39:52,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:39:52,341 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 14:39:52,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:39:52,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011413556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:52,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:39:52,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-14 14:39:52,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525815991] [2021-12-14 14:39:52,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:52,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:39:52,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:52,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:39:52,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:39:52,344 INFO L87 Difference]: Start difference. First operand 540 states and 828 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-14 14:39:52,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:52,393 INFO L93 Difference]: Finished difference Result 1069 states and 1645 transitions. [2021-12-14 14:39:52,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:39:52,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2021-12-14 14:39:52,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:52,396 INFO L225 Difference]: With dead ends: 1069 [2021-12-14 14:39:52,397 INFO L226 Difference]: Without dead ends: 542 [2021-12-14 14:39:52,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 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 14:39:52,399 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 159 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2563 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 14:39:52,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2563 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:39:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-12-14 14:39:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2021-12-14 14:39:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 419 states have (on average 1.541766109785203) internal successors, (646), 425 states have internal predecessors, (646), 91 states have call successors, (91), 29 states have call predecessors, (91), 31 states have return successors, (97), 89 states have call predecessors, (97), 90 states have call successors, (97) [2021-12-14 14:39:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 834 transitions. [2021-12-14 14:39:52,415 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 834 transitions. Word has length 147 [2021-12-14 14:39:52,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:52,415 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 834 transitions. [2021-12-14 14:39:52,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-14 14:39:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 834 transitions. [2021-12-14 14:39:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-14 14:39:52,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:52,418 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, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:52,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 14:39:52,636 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 14:39:52,636 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:52,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:52,637 INFO L85 PathProgramCache]: Analyzing trace with hash 833805250, now seen corresponding path program 1 times [2021-12-14 14:39:52,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:52,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133288413] [2021-12-14 14:39:52,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:52,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:39:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:39:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 14:39:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:39:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 14:39:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:39:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:39:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:39:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:39:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:39:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:39:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:39:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:39:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:39:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 14:39:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:39:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 14:39:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 14:39:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:52,779 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 14:39:52,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:52,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133288413] [2021-12-14 14:39:52,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133288413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:52,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:39:52,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:39:52,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981575078] [2021-12-14 14:39:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:52,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:39:52,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:52,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:39:52,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:39:52,781 INFO L87 Difference]: Start difference. First operand 542 states and 834 transitions. Second operand has 9 states, 8 states have (on average 12.375) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 14:39:54,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:54,752 INFO L93 Difference]: Finished difference Result 1299 states and 2025 transitions. [2021-12-14 14:39:54,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:39:54,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 167 [2021-12-14 14:39:54,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:54,757 INFO L225 Difference]: With dead ends: 1299 [2021-12-14 14:39:54,757 INFO L226 Difference]: Without dead ends: 780 [2021-12-14 14:39:54,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:39:54,758 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 1739 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 3463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:39:54,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1760 Valid, 2282 Invalid, 3463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 14:39:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-12-14 14:39:54,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 542. [2021-12-14 14:39:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 419 states have (on average 1.541766109785203) internal successors, (646), 425 states have internal predecessors, (646), 91 states have call successors, (91), 29 states have call predecessors, (91), 31 states have return successors, (96), 89 states have call predecessors, (96), 90 states have call successors, (96) [2021-12-14 14:39:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 833 transitions. [2021-12-14 14:39:54,784 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 833 transitions. Word has length 167 [2021-12-14 14:39:54,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:54,784 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 833 transitions. [2021-12-14 14:39:54,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 14:39:54,785 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 833 transitions. [2021-12-14 14:39:54,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-14 14:39:54,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:54,787 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, 1, 1, 1, 1] [2021-12-14 14:39:54,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 14:39:54,787 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:54,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:54,787 INFO L85 PathProgramCache]: Analyzing trace with hash -355459448, now seen corresponding path program 2 times [2021-12-14 14:39:54,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:54,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343937047] [2021-12-14 14:39:54,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:54,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:39:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:39:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 14:39:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:39:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 14:39:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:39:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:39:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:39:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:39:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:39:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:39:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:39:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:39:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 14:39:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:39:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 14:39:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 14:39:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 14:39:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-14 14:39:54,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:54,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343937047] [2021-12-14 14:39:54,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343937047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:54,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:39:54,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:39:54,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220290568] [2021-12-14 14:39:54,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:54,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:39:54,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:54,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:39:54,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:39:54,896 INFO L87 Difference]: Start difference. First operand 542 states and 833 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 14:39:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:56,862 INFO L93 Difference]: Finished difference Result 1301 states and 2028 transitions. [2021-12-14 14:39:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:39:56,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 168 [2021-12-14 14:39:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:56,871 INFO L225 Difference]: With dead ends: 1301 [2021-12-14 14:39:56,871 INFO L226 Difference]: Without dead ends: 782 [2021-12-14 14:39:56,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 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 14:39:56,874 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 1729 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 3482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 754 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-14 14:39:56,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 2295 Invalid, 3482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [754 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-14 14:39:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-12-14 14:39:56,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 544. [2021-12-14 14:39:56,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 420 states have (on average 1.5404761904761906) internal successors, (647), 427 states have internal predecessors, (647), 91 states have call successors, (91), 29 states have call predecessors, (91), 32 states have return successors, (98), 89 states have call predecessors, (98), 90 states have call successors, (98) [2021-12-14 14:39:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 836 transitions. [2021-12-14 14:39:56,902 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 836 transitions. Word has length 168 [2021-12-14 14:39:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:56,902 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 836 transitions. [2021-12-14 14:39:56,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 14:39:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 836 transitions. [2021-12-14 14:39:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-14 14:39:56,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:56,905 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:56,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 14:39:56,905 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1954260473, now seen corresponding path program 1 times [2021-12-14 14:39:56,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:56,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945693745] [2021-12-14 14:39:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:56,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:39:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:39:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:39:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:39:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:39:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:39:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:39:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:39:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:39:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:39:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:39:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:39:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:39:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 14:39:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 14:39:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 14:39:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 14:39:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 14:39:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:39:57,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:57,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945693745] [2021-12-14 14:39:57,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945693745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:57,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:39:57,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:39:57,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588046446] [2021-12-14 14:39:57,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:57,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:39:57,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:57,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:39:57,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:39:57,040 INFO L87 Difference]: Start difference. First operand 544 states and 836 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-14 14:39:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:39:59,657 INFO L93 Difference]: Finished difference Result 1299 states and 2023 transitions. [2021-12-14 14:39:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:39:59,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 169 [2021-12-14 14:39:59,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:39:59,662 INFO L225 Difference]: With dead ends: 1299 [2021-12-14 14:39:59,662 INFO L226 Difference]: Without dead ends: 782 [2021-12-14 14:39:59,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 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 14:39:59,664 INFO L933 BasicCegarLoop]: 841 mSDtfsCounter, 1878 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 4873 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 5689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 4873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:39:59,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1878 Valid, 3017 Invalid, 5689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [816 Valid, 4873 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 14:39:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-12-14 14:39:59,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 544. [2021-12-14 14:39:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 420 states have (on average 1.5404761904761906) internal successors, (647), 427 states have internal predecessors, (647), 91 states have call successors, (91), 29 states have call predecessors, (91), 32 states have return successors, (97), 89 states have call predecessors, (97), 90 states have call successors, (97) [2021-12-14 14:39:59,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 835 transitions. [2021-12-14 14:39:59,711 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 835 transitions. Word has length 169 [2021-12-14 14:39:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:39:59,712 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 835 transitions. [2021-12-14 14:39:59,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-14 14:39:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 835 transitions. [2021-12-14 14:39:59,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-14 14:39:59,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:39:59,714 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, 1, 1, 1, 1, 1, 1] [2021-12-14 14:39:59,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 14:39:59,714 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:39:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:39:59,715 INFO L85 PathProgramCache]: Analyzing trace with hash 621365938, now seen corresponding path program 2 times [2021-12-14 14:39:59,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:39:59,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402274721] [2021-12-14 14:39:59,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:39:59,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:39:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:39:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:39:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:39:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:39:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:39:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:39:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:39:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:39:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:39:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:39:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:39:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:39:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:39:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:39:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:39:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:39:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:39:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 14:39:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 14:39:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 14:39:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 14:39:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:39:59,833 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 14:39:59,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:39:59,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402274721] [2021-12-14 14:39:59,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402274721] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:39:59,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:39:59,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:39:59,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383285922] [2021-12-14 14:39:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:39:59,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:39:59,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:39:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:39:59,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:39:59,835 INFO L87 Difference]: Start difference. First operand 544 states and 835 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-14 14:40:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:02,378 INFO L93 Difference]: Finished difference Result 1301 states and 2029 transitions. [2021-12-14 14:40:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:40:02,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 170 [2021-12-14 14:40:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:02,383 INFO L225 Difference]: With dead ends: 1301 [2021-12-14 14:40:02,383 INFO L226 Difference]: Without dead ends: 784 [2021-12-14 14:40:02,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 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 14:40:02,385 INFO L933 BasicCegarLoop]: 840 mSDtfsCounter, 1875 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 4902 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 5708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 4902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:02,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1875 Valid, 3011 Invalid, 5708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 4902 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 14:40:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-12-14 14:40:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 546. [2021-12-14 14:40:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 421 states have (on average 1.5391923990498813) internal successors, (648), 429 states have internal predecessors, (648), 91 states have call successors, (91), 29 states have call predecessors, (91), 33 states have return successors, (102), 89 states have call predecessors, (102), 90 states have call successors, (102) [2021-12-14 14:40:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 841 transitions. [2021-12-14 14:40:02,420 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 841 transitions. Word has length 170 [2021-12-14 14:40:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:02,420 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 841 transitions. [2021-12-14 14:40:02,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-14 14:40:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 841 transitions. [2021-12-14 14:40:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-14 14:40:02,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:02,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:02,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 14:40:02,424 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:02,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:02,424 INFO L85 PathProgramCache]: Analyzing trace with hash -77374292, now seen corresponding path program 1 times [2021-12-14 14:40:02,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:02,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013367280] [2021-12-14 14:40:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:02,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:40:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:40:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:40:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:40:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:40:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:40:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:40:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:40:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:40:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 14:40:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 14:40:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 14:40:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 14:40:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 14:40:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-14 14:40:02,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:02,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013367280] [2021-12-14 14:40:02,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013367280] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:02,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067018341] [2021-12-14 14:40:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:02,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:02,564 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 14:40:02,565 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 14:40:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:02,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:40:02,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:40:03,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:40:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:40:03,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067018341] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:40:03,277 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:40:03,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-14 14:40:03,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959883032] [2021-12-14 14:40:03,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:40:03,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 14:40:03,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:03,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 14:40:03,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:40:03,279 INFO L87 Difference]: Start difference. First operand 546 states and 841 transitions. Second operand has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2021-12-14 14:40:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:06,858 INFO L93 Difference]: Finished difference Result 2210 states and 3667 transitions. [2021-12-14 14:40:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 14:40:06,862 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 171 [2021-12-14 14:40:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:06,869 INFO L225 Difference]: With dead ends: 2210 [2021-12-14 14:40:06,869 INFO L226 Difference]: Without dead ends: 1695 [2021-12-14 14:40:06,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 381 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 14:40:06,872 INFO L933 BasicCegarLoop]: 1089 mSDtfsCounter, 4214 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 6462 mSolverCounterSat, 1768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4216 SdHoareTripleChecker+Valid, 5258 SdHoareTripleChecker+Invalid, 8230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 6462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:06,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4216 Valid, 5258 Invalid, 8230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1768 Valid, 6462 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-14 14:40:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-12-14 14:40:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 989. [2021-12-14 14:40:06,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 785 states have (on average 1.5974522292993631) internal successors, (1254), 793 states have internal predecessors, (1254), 170 states have call successors, (170), 29 states have call predecessors, (170), 33 states have return successors, (191), 168 states have call predecessors, (191), 169 states have call successors, (191) [2021-12-14 14:40:06,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1615 transitions. [2021-12-14 14:40:06,946 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1615 transitions. Word has length 171 [2021-12-14 14:40:06,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:06,946 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1615 transitions. [2021-12-14 14:40:06,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2021-12-14 14:40:06,946 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1615 transitions. [2021-12-14 14:40:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-14 14:40:06,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:06,950 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] [2021-12-14 14:40:06,971 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 14:40:07,169 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 14:40:07,170 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:07,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1633839497, now seen corresponding path program 1 times [2021-12-14 14:40:07,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:07,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475737261] [2021-12-14 14:40:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:07,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:40:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:40:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:40:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:40:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:40:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:40:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:40:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:40:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 14:40:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 14:40:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:40:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 14:40:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 14:40:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-14 14:40:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:07,264 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 14:40:07,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:07,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475737261] [2021-12-14 14:40:07,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475737261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:07,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:07,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:07,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393815859] [2021-12-14 14:40:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:07,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:07,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:07,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:07,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:07,267 INFO L87 Difference]: Start difference. First operand 989 states and 1615 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:08,791 INFO L93 Difference]: Finished difference Result 2561 states and 4275 transitions. [2021-12-14 14:40:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 174 [2021-12-14 14:40:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:08,798 INFO L225 Difference]: With dead ends: 2561 [2021-12-14 14:40:08,799 INFO L226 Difference]: Without dead ends: 1650 [2021-12-14 14:40:08,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:08,802 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1728 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:08,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1747 Valid, 1858 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2021-12-14 14:40:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1404. [2021-12-14 14:40:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1121 states have (on average 1.6181980374665477) internal successors, (1814), 1129 states have internal predecessors, (1814), 249 states have call successors, (249), 29 states have call predecessors, (249), 33 states have return successors, (280), 247 states have call predecessors, (280), 248 states have call successors, (280) [2021-12-14 14:40:08,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2343 transitions. [2021-12-14 14:40:08,855 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2343 transitions. Word has length 174 [2021-12-14 14:40:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:08,855 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 2343 transitions. [2021-12-14 14:40:08,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2343 transitions. [2021-12-14 14:40:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-14 14:40:08,861 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:08,861 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:08,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 14:40:08,861 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash -28285605, now seen corresponding path program 1 times [2021-12-14 14:40:08,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:08,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023157077] [2021-12-14 14:40:08,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:08,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:40:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:40:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:40:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:40:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:40:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:40:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:40:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:40:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 14:40:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 14:40:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:08,961 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 14:40:08,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:08,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023157077] [2021-12-14 14:40:08,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023157077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:08,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:08,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:08,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771829086] [2021-12-14 14:40:08,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:08,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:08,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:08,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:08,963 INFO L87 Difference]: Start difference. First operand 1404 states and 2343 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:40:10,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:10,395 INFO L93 Difference]: Finished difference Result 3600 states and 6088 transitions. [2021-12-14 14:40:10,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:10,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2021-12-14 14:40:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:10,413 INFO L225 Difference]: With dead ends: 3600 [2021-12-14 14:40:10,413 INFO L226 Difference]: Without dead ends: 2327 [2021-12-14 14:40:10,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:10,417 INFO L933 BasicCegarLoop]: 880 mSDtfsCounter, 1725 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:10,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 1837 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 14:40:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2021-12-14 14:40:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2081. [2021-12-14 14:40:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 1679 states have (on average 1.6295413936867182) internal successors, (2736), 1687 states have internal predecessors, (2736), 368 states have call successors, (368), 29 states have call predecessors, (368), 33 states have return successors, (399), 366 states have call predecessors, (399), 367 states have call successors, (399) [2021-12-14 14:40:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 3503 transitions. [2021-12-14 14:40:10,499 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 3503 transitions. Word has length 156 [2021-12-14 14:40:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:10,499 INFO L470 AbstractCegarLoop]: Abstraction has 2081 states and 3503 transitions. [2021-12-14 14:40:10,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:40:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 3503 transitions. [2021-12-14 14:40:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-14 14:40:10,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:10,508 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 14:40:10,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 14:40:10,508 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1598818594, now seen corresponding path program 1 times [2021-12-14 14:40:10,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:10,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019591650] [2021-12-14 14:40:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:10,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:40:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:40:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:40:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:40:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:40:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:40:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:40:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:40:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:40:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 14:40:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 14:40:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 14:40:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:10,585 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 14:40:10,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:10,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019591650] [2021-12-14 14:40:10,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019591650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:10,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:10,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:10,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975239480] [2021-12-14 14:40:10,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:10,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:10,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:10,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:10,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:10,588 INFO L87 Difference]: Start difference. First operand 2081 states and 3503 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:40:12,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:12,105 INFO L93 Difference]: Finished difference Result 5185 states and 8867 transitions. [2021-12-14 14:40:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:12,106 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-12-14 14:40:12,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:12,119 INFO L225 Difference]: With dead ends: 5185 [2021-12-14 14:40:12,120 INFO L226 Difference]: Without dead ends: 3370 [2021-12-14 14:40:12,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:12,125 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 1722 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 808 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 808 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:12,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1740 Valid, 1843 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [808 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2021-12-14 14:40:12,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 3124. [2021-12-14 14:40:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2560 states have (on average 1.63828125) internal successors, (4194), 2568 states have internal predecessors, (4194), 530 states have call successors, (530), 29 states have call predecessors, (530), 33 states have return successors, (577), 528 states have call predecessors, (577), 529 states have call successors, (577) [2021-12-14 14:40:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 5301 transitions. [2021-12-14 14:40:12,295 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 5301 transitions. Word has length 157 [2021-12-14 14:40:12,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:12,296 INFO L470 AbstractCegarLoop]: Abstraction has 3124 states and 5301 transitions. [2021-12-14 14:40:12,296 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:40:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 5301 transitions. [2021-12-14 14:40:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-14 14:40:12,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:12,307 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 14:40:12,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 14:40:12,308 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:12,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash 171903183, now seen corresponding path program 1 times [2021-12-14 14:40:12,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:12,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786147935] [2021-12-14 14:40:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:12,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:40:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:40:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:40:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:40:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:40:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:40:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:40:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:40:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 14:40:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 14:40:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 14:40:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 14:40:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 14:40:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 14:40:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:12,400 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 14:40:12,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:12,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786147935] [2021-12-14 14:40:12,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786147935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:12,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:12,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:12,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146037278] [2021-12-14 14:40:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:12,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:12,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:12,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:12,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:12,402 INFO L87 Difference]: Start difference. First operand 3124 states and 5301 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:14,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:14,057 INFO L93 Difference]: Finished difference Result 7699 states and 13282 transitions. [2021-12-14 14:40:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:14,058 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2021-12-14 14:40:14,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:14,078 INFO L225 Difference]: With dead ends: 7699 [2021-12-14 14:40:14,078 INFO L226 Difference]: Without dead ends: 5060 [2021-12-14 14:40:14,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:14,085 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 1720 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:14,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1738 Valid, 1841 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 14:40:14,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5060 states. [2021-12-14 14:40:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5060 to 4814. [2021-12-14 14:40:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 4005 states have (on average 1.6444444444444444) internal successors, (6586), 4013 states have internal predecessors, (6586), 775 states have call successors, (775), 29 states have call predecessors, (775), 33 states have return successors, (848), 773 states have call predecessors, (848), 774 states have call successors, (848) [2021-12-14 14:40:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 8209 transitions. [2021-12-14 14:40:14,318 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 8209 transitions. Word has length 177 [2021-12-14 14:40:14,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:14,319 INFO L470 AbstractCegarLoop]: Abstraction has 4814 states and 8209 transitions. [2021-12-14 14:40:14,319 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 8209 transitions. [2021-12-14 14:40:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-14 14:40:14,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:14,334 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, 1] [2021-12-14 14:40:14,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 14:40:14,335 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:14,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1925488083, now seen corresponding path program 1 times [2021-12-14 14:40:14,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:14,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725223448] [2021-12-14 14:40:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:14,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:40:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:40:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:40:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:40:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:40:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:40:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 14:40:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 14:40:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 14:40:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 14:40:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 14:40:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 14:40:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:14,417 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 14:40:14,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:14,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725223448] [2021-12-14 14:40:14,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725223448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:14,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:14,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:14,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453383251] [2021-12-14 14:40:14,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:14,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:14,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:14,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:14,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:14,419 INFO L87 Difference]: Start difference. First operand 4814 states and 8209 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:16,079 INFO L93 Difference]: Finished difference Result 11900 states and 20659 transitions. [2021-12-14 14:40:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:16,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 178 [2021-12-14 14:40:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:16,111 INFO L225 Difference]: With dead ends: 11900 [2021-12-14 14:40:16,111 INFO L226 Difference]: Without dead ends: 7903 [2021-12-14 14:40:16,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:16,124 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 1721 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:16,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1740 Valid, 1875 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2021-12-14 14:40:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 7657. [2021-12-14 14:40:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7657 states, 6355 states have (on average 1.6435877261998426) internal successors, (10445), 6363 states have internal predecessors, (10445), 1268 states have call successors, (1268), 29 states have call predecessors, (1268), 33 states have return successors, (1385), 1266 states have call predecessors, (1385), 1267 states have call successors, (1385) [2021-12-14 14:40:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7657 states to 7657 states and 13098 transitions. [2021-12-14 14:40:16,478 INFO L78 Accepts]: Start accepts. Automaton has 7657 states and 13098 transitions. Word has length 178 [2021-12-14 14:40:16,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:16,479 INFO L470 AbstractCegarLoop]: Abstraction has 7657 states and 13098 transitions. [2021-12-14 14:40:16,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 7657 states and 13098 transitions. [2021-12-14 14:40:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-14 14:40:16,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:16,502 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, 1, 1] [2021-12-14 14:40:16,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 14:40:16,503 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:16,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash 529353899, now seen corresponding path program 1 times [2021-12-14 14:40:16,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:16,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610278865] [2021-12-14 14:40:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:16,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:40:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:40:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:40:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:40:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:40:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:40:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:40:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:40:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:40:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 14:40:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 14:40:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 14:40:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 14:40:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 14:40:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:16,594 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 14:40:16,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:16,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610278865] [2021-12-14 14:40:16,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610278865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:16,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:16,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:16,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180925602] [2021-12-14 14:40:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:16,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:16,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:16,596 INFO L87 Difference]: Start difference. First operand 7657 states and 13098 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:18,363 INFO L93 Difference]: Finished difference Result 19515 states and 33935 transitions. [2021-12-14 14:40:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:18,363 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2021-12-14 14:40:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:18,405 INFO L225 Difference]: With dead ends: 19515 [2021-12-14 14:40:18,405 INFO L226 Difference]: Without dead ends: 13077 [2021-12-14 14:40:18,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:18,426 INFO L933 BasicCegarLoop]: 880 mSDtfsCounter, 1719 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:18,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1738 Valid, 1845 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 14:40:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13077 states. [2021-12-14 14:40:18,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13077 to 12831. [2021-12-14 14:40:18,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12831 states, 10707 states have (on average 1.6445316148314186) internal successors, (17608), 10715 states have internal predecessors, (17608), 2090 states have call successors, (2090), 29 states have call predecessors, (2090), 33 states have return successors, (2285), 2088 states have call predecessors, (2285), 2089 states have call successors, (2285) [2021-12-14 14:40:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12831 states to 12831 states and 21983 transitions. [2021-12-14 14:40:19,011 INFO L78 Accepts]: Start accepts. Automaton has 12831 states and 21983 transitions. Word has length 179 [2021-12-14 14:40:19,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:19,011 INFO L470 AbstractCegarLoop]: Abstraction has 12831 states and 21983 transitions. [2021-12-14 14:40:19,011 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:19,011 INFO L276 IsEmpty]: Start isEmpty. Operand 12831 states and 21983 transitions. [2021-12-14 14:40:19,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-14 14:40:19,044 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:19,044 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:19,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 14:40:19,044 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:19,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:19,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1546993780, now seen corresponding path program 1 times [2021-12-14 14:40:19,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:19,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728882728] [2021-12-14 14:40:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:19,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:40:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:40:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:40:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 14:40:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:40:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:40:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 14:40:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:19,123 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 14:40:19,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:19,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728882728] [2021-12-14 14:40:19,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728882728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:19,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:19,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:19,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907531823] [2021-12-14 14:40:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:19,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:19,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:19,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:19,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:19,126 INFO L87 Difference]: Start difference. First operand 12831 states and 21983 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:40:21,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:21,211 INFO L93 Difference]: Finished difference Result 30998 states and 53635 transitions. [2021-12-14 14:40:21,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:21,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2021-12-14 14:40:21,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:21,312 INFO L225 Difference]: With dead ends: 30998 [2021-12-14 14:40:21,312 INFO L226 Difference]: Without dead ends: 20390 [2021-12-14 14:40:21,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:21,333 INFO L933 BasicCegarLoop]: 892 mSDtfsCounter, 1712 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:21,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1730 Valid, 1855 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20390 states. [2021-12-14 14:40:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20390 to 20144. [2021-12-14 14:40:22,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20144 states, 16817 states have (on average 1.620621989653327) internal successors, (27254), 16825 states have internal predecessors, (27254), 3293 states have call successors, (3293), 29 states have call predecessors, (3293), 33 states have return successors, (3632), 3291 states have call predecessors, (3632), 3292 states have call successors, (3632) [2021-12-14 14:40:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20144 states to 20144 states and 34179 transitions. [2021-12-14 14:40:22,165 INFO L78 Accepts]: Start accepts. Automaton has 20144 states and 34179 transitions. Word has length 161 [2021-12-14 14:40:22,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:22,166 INFO L470 AbstractCegarLoop]: Abstraction has 20144 states and 34179 transitions. [2021-12-14 14:40:22,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 14:40:22,166 INFO L276 IsEmpty]: Start isEmpty. Operand 20144 states and 34179 transitions. [2021-12-14 14:40:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-14 14:40:22,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:22,204 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, 1, 1, 1, 1] [2021-12-14 14:40:22,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 14:40:22,204 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash 898706218, now seen corresponding path program 1 times [2021-12-14 14:40:22,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:22,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645949350] [2021-12-14 14:40:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:22,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:40:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:40:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:40:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:40:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:40:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:40:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:40:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:40:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 14:40:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 14:40:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 14:40:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-14 14:40:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:22,288 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 14:40:22,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:22,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645949350] [2021-12-14 14:40:22,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645949350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:22,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:22,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:22,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451891890] [2021-12-14 14:40:22,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:22,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:22,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:22,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:22,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:22,291 INFO L87 Difference]: Start difference. First operand 20144 states and 34179 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:25,037 INFO L93 Difference]: Finished difference Result 53440 states and 92169 transitions. [2021-12-14 14:40:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:25,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2021-12-14 14:40:25,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:25,164 INFO L225 Difference]: With dead ends: 53440 [2021-12-14 14:40:25,164 INFO L226 Difference]: Without dead ends: 36196 [2021-12-14 14:40:25,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:25,215 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 1710 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:25,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 1853 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [796 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36196 states. [2021-12-14 14:40:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36196 to 35950. [2021-12-14 14:40:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35950 states, 30173 states have (on average 1.6178702813773904) internal successors, (48816), 30181 states have internal predecessors, (48816), 5743 states have call successors, (5743), 29 states have call predecessors, (5743), 33 states have return successors, (6356), 5741 states have call predecessors, (6356), 5742 states have call successors, (6356) [2021-12-14 14:40:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35950 states to 35950 states and 60915 transitions. [2021-12-14 14:40:26,853 INFO L78 Accepts]: Start accepts. Automaton has 35950 states and 60915 transitions. Word has length 181 [2021-12-14 14:40:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:26,854 INFO L470 AbstractCegarLoop]: Abstraction has 35950 states and 60915 transitions. [2021-12-14 14:40:26,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 35950 states and 60915 transitions. [2021-12-14 14:40:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-14 14:40:26,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:26,913 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, 1, 1, 1, 1, 1] [2021-12-14 14:40:26,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 14:40:26,913 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash -475644443, now seen corresponding path program 1 times [2021-12-14 14:40:26,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:26,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724846036] [2021-12-14 14:40:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:26,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:40:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:40:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:40:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:40:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:40:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:40:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:40:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:40:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:40:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 14:40:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 14:40:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 14:40:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 14:40:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 14:40:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-14 14:40:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,035 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 14:40:27,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:27,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724846036] [2021-12-14 14:40:27,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724846036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:27,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:27,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:27,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084797027] [2021-12-14 14:40:27,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:27,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:27,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:27,038 INFO L87 Difference]: Start difference. First operand 35950 states and 60915 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:30,694 INFO L93 Difference]: Finished difference Result 98287 states and 168728 transitions. [2021-12-14 14:40:30,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:30,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2021-12-14 14:40:30,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:31,040 INFO L225 Difference]: With dead ends: 98287 [2021-12-14 14:40:31,041 INFO L226 Difference]: Without dead ends: 66193 [2021-12-14 14:40:31,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:31,102 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1711 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:31,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1730 Valid, 1874 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66193 states. [2021-12-14 14:40:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66193 to 65947. [2021-12-14 14:40:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65947 states, 55657 states have (on average 1.6139748818657131) internal successors, (89829), 55665 states have internal predecessors, (89829), 10256 states have call successors, (10256), 29 states have call predecessors, (10256), 33 states have return successors, (11401), 10254 states have call predecessors, (11401), 10255 states have call successors, (11401) [2021-12-14 14:40:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65947 states to 65947 states and 111486 transitions. [2021-12-14 14:40:34,094 INFO L78 Accepts]: Start accepts. Automaton has 65947 states and 111486 transitions. Word has length 182 [2021-12-14 14:40:34,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:34,095 INFO L470 AbstractCegarLoop]: Abstraction has 65947 states and 111486 transitions. [2021-12-14 14:40:34,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 65947 states and 111486 transitions. [2021-12-14 14:40:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-14 14:40:34,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:34,170 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, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:34,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 14:40:34,170 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:34,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:34,170 INFO L85 PathProgramCache]: Analyzing trace with hash 184176682, now seen corresponding path program 1 times [2021-12-14 14:40:34,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:34,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419708131] [2021-12-14 14:40:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:34,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:40:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:40:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:40:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:40:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:40:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:40:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 14:40:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 14:40:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 14:40:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 14:40:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 14:40:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 14:40:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 14:40:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,441 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 14:40:34,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:34,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419708131] [2021-12-14 14:40:34,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419708131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:34,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:34,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:34,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258091319] [2021-12-14 14:40:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:34,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:34,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:34,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:34,443 INFO L87 Difference]: Start difference. First operand 65947 states and 111486 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 14:40:39,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:39,528 INFO L93 Difference]: Finished difference Result 123948 states and 213161 transitions. [2021-12-14 14:40:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:39,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2021-12-14 14:40:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:40,065 INFO L225 Difference]: With dead ends: 123948 [2021-12-14 14:40:40,065 INFO L226 Difference]: Without dead ends: 123681 [2021-12-14 14:40:40,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 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 14:40:40,114 INFO L933 BasicCegarLoop]: 878 mSDtfsCounter, 1711 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:40,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1730 Valid, 1836 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:40:40,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123681 states.